summaryrefslogtreecommitdiffstats
path: root/python.d
diff options
context:
space:
mode:
authorFederico Ceratto <federico.ceratto@gmail.com>2018-03-27 21:28:27 +0000
committerFederico Ceratto <federico.ceratto@gmail.com>2018-03-27 21:28:27 +0000
commiteb7cc2640201f168bbd9a05799fd2dbe823bb57c (patch)
tree1f88da02b7ee3c16ced7b5f7dc4aadb190766e7c /python.d
parentRelease v. 1.9.0+dfsg-1 to Unstable (diff)
parentNew upstream version 1.10.0+dfsg (diff)
downloadnetdata-eb7cc2640201f168bbd9a05799fd2dbe823bb57c.tar.xz
netdata-eb7cc2640201f168bbd9a05799fd2dbe823bb57c.zip
Update upstream source from tag 'upstream/1.10.0+dfsg'
Update to upstream version '1.10.0+dfsg' with Debian dir fa5485f3d9aea3038a19eff06ba33374ac5c5d7c
Diffstat (limited to 'python.d')
-rw-r--r--python.d/Makefile.am9
-rw-r--r--python.d/Makefile.in8
-rw-r--r--python.d/README.md657
-rw-r--r--python.d/ceph.chart.py313
-rw-r--r--python.d/elasticsearch.chart.py101
-rw-r--r--python.d/haproxy.chart.py134
-rw-r--r--python.d/httpcheck.chart.py117
-rw-r--r--python.d/icecast.chart.py92
-rw-r--r--python.d/isc_dhcpd.chart.py249
-rw-r--r--python.d/mdstat.chart.py164
-rw-r--r--python.d/nginx_plus.chart.py491
-rw-r--r--python.d/ntpd.chart.py380
-rw-r--r--python.d/portcheck.chart.py159
-rw-r--r--python.d/postgres.chart.py344
-rw-r--r--python.d/python_modules/bases/FrameworkServices/ExecutableService.py5
-rw-r--r--python.d/python_modules/bases/FrameworkServices/SimpleService.py12
-rw-r--r--python.d/python_modules/bases/FrameworkServices/SocketService.py29
-rw-r--r--python.d/python_modules/bases/FrameworkServices/UrlService.py33
-rw-r--r--python.d/python_modules/bases/charts.py6
-rw-r--r--python.d/python_modules/pyyaml2/__init__.py315
-rw-r--r--python.d/python_modules/pyyaml2/composer.py139
-rw-r--r--python.d/python_modules/pyyaml2/constructor.py675
-rw-r--r--python.d/python_modules/pyyaml2/cyaml.py85
-rw-r--r--python.d/python_modules/pyyaml2/dumper.py62
-rw-r--r--python.d/python_modules/pyyaml2/emitter.py1140
-rw-r--r--python.d/python_modules/pyyaml2/error.py75
-rw-r--r--python.d/python_modules/pyyaml2/events.py86
-rw-r--r--python.d/python_modules/pyyaml2/loader.py40
-rw-r--r--python.d/python_modules/pyyaml2/nodes.py49
-rw-r--r--python.d/python_modules/pyyaml2/parser.py589
-rw-r--r--python.d/python_modules/pyyaml2/reader.py190
-rw-r--r--python.d/python_modules/pyyaml2/representer.py484
-rw-r--r--python.d/python_modules/pyyaml2/resolver.py224
-rw-r--r--python.d/python_modules/pyyaml2/scanner.py1457
-rw-r--r--python.d/python_modules/pyyaml2/serializer.py111
-rw-r--r--python.d/python_modules/pyyaml2/tokens.py104
-rw-r--r--python.d/python_modules/pyyaml3/__init__.py312
-rw-r--r--python.d/python_modules/pyyaml3/composer.py139
-rw-r--r--python.d/python_modules/pyyaml3/constructor.py686
-rw-r--r--python.d/python_modules/pyyaml3/cyaml.py85
-rw-r--r--python.d/python_modules/pyyaml3/dumper.py62
-rw-r--r--python.d/python_modules/pyyaml3/emitter.py1137
-rw-r--r--python.d/python_modules/pyyaml3/error.py75
-rw-r--r--python.d/python_modules/pyyaml3/events.py86
-rw-r--r--python.d/python_modules/pyyaml3/loader.py40
-rw-r--r--python.d/python_modules/pyyaml3/nodes.py49
-rw-r--r--python.d/python_modules/pyyaml3/parser.py589
-rw-r--r--python.d/python_modules/pyyaml3/reader.py192
-rw-r--r--python.d/python_modules/pyyaml3/representer.py374
-rw-r--r--python.d/python_modules/pyyaml3/resolver.py224
-rw-r--r--python.d/python_modules/pyyaml3/scanner.py1448
-rw-r--r--python.d/python_modules/pyyaml3/serializer.py111
-rw-r--r--python.d/python_modules/pyyaml3/tokens.py104
-rw-r--r--python.d/rabbitmq.chart.py11
-rw-r--r--python.d/springboot.chart.py151
-rw-r--r--python.d/traefik.chart.py181
-rw-r--r--python.d/web_log.chart.py70
57 files changed, 14895 insertions, 359 deletions
diff --git a/python.d/Makefile.am b/python.d/Makefile.am
index 1c84cddb4..a5fcc7394 100644
--- a/python.d/Makefile.am
+++ b/python.d/Makefile.am
@@ -16,6 +16,7 @@ dist_python_DATA = \
apache.chart.py \
beanstalk.chart.py \
bind_rndc.chart.py \
+ ceph.chart.py \
chrony.chart.py \
couchdb.chart.py \
cpufreq.chart.py \
@@ -31,6 +32,8 @@ dist_python_DATA = \
go_expvar.chart.py \
haproxy.chart.py \
hddtemp.chart.py \
+ httpcheck.chart.py \
+ icecast.chart.py \
ipfs.chart.py \
isc_dhcpd.chart.py \
mdstat.chart.py \
@@ -38,9 +41,12 @@ dist_python_DATA = \
mongodb.chart.py \
mysql.chart.py \
nginx.chart.py \
+ nginx_plus.chart.py \
nsd.chart.py \
+ ntpd.chart.py \
ovpn_status_log.chart.py \
phpfpm.chart.py \
+ portcheck.chart.py \
postfix.chart.py \
postgres.chart.py \
powerdns.chart.py \
@@ -49,9 +55,11 @@ dist_python_DATA = \
retroshare.chart.py \
samba.chart.py \
sensors.chart.py \
+ springboot.chart.py \
squid.chart.py \
smartd_log.chart.py \
tomcat.chart.py \
+ traefik.chart.py \
varnish.chart.py \
web_log.chart.py \
$(NULL)
@@ -194,4 +202,3 @@ dist_python_urllib3_securetransport_DATA = \
python_modules/urllib3/contrib/_securetransport/bindings.py \
python_modules/urllib3/contrib/_securetransport/low_level.py \
$(NULL)
-
diff --git a/python.d/Makefile.in b/python.d/Makefile.in
index dda54e1a5..d6e11d0cf 100644
--- a/python.d/Makefile.in
+++ b/python.d/Makefile.in
@@ -336,6 +336,7 @@ dist_python_DATA = \
apache.chart.py \
beanstalk.chart.py \
bind_rndc.chart.py \
+ ceph.chart.py \
chrony.chart.py \
couchdb.chart.py \
cpufreq.chart.py \
@@ -351,6 +352,8 @@ dist_python_DATA = \
go_expvar.chart.py \
haproxy.chart.py \
hddtemp.chart.py \
+ httpcheck.chart.py \
+ icecast.chart.py \
ipfs.chart.py \
isc_dhcpd.chart.py \
mdstat.chart.py \
@@ -358,9 +361,12 @@ dist_python_DATA = \
mongodb.chart.py \
mysql.chart.py \
nginx.chart.py \
+ nginx_plus.chart.py \
nsd.chart.py \
+ ntpd.chart.py \
ovpn_status_log.chart.py \
phpfpm.chart.py \
+ portcheck.chart.py \
postfix.chart.py \
postgres.chart.py \
powerdns.chart.py \
@@ -369,9 +375,11 @@ dist_python_DATA = \
retroshare.chart.py \
samba.chart.py \
sensors.chart.py \
+ springboot.chart.py \
squid.chart.py \
smartd_log.chart.py \
tomcat.chart.py \
+ traefik.chart.py \
varnish.chart.py \
web_log.chart.py \
$(NULL)
diff --git a/python.d/README.md b/python.d/README.md
index 009265f72..faabba2c7 100644
--- a/python.d/README.md
+++ b/python.d/README.md
@@ -29,7 +29,7 @@ local: # job name
update_every : 5 # job update frequency
other_var1 : some_val # module specific variable
-other_job:
+other_job:
priority : 5 # job position on dashboard
retries : 20 # job retries
other_var2 : val # module specific variable
@@ -43,7 +43,7 @@ The following python.d modules are supported:
# apache
-This module will monitor one or more apache servers depending on configuration.
+This module will monitor one or more apache servers depending on configuration.
**Requirements:**
* apache with enabled `mod_status`
@@ -60,20 +60,20 @@ It produces the following charts:
* keepalive
* closing
* writing
-
+
4. **Bandwidth** in kilobytes/s
* sent
-
+
5. **Workers**
* idle
* busy
-
+
6. **Lifetime Avg. Requests/s** in requests/s
* requests_sec
-
+
7. **Lifetime Avg. Bandwidth/s** in kilobytes/s
* size_sec
-
+
8. **Lifetime Avg. Response Size** in bytes/request
* size_req
@@ -109,7 +109,7 @@ Module monitors apache mod_cache log and produces only one chart:
* hit
* miss
* other
-
+
### configuration
Sample:
@@ -138,14 +138,14 @@ Module provides server and tube level statistics:
1. **Cpu usage** in cpu time
* user
* system
-
+
2. **Jobs rate** in jobs/s
* total
* timeouts
-
+
3. **Connections rate** in connections/s
* connections
-
+
4. **Commands rate** in commands/s
* put
* peek
@@ -167,27 +167,27 @@ Module provides server and tube level statistics:
* list-tube-used
* list-tubes-watched
* pause-tube
-
+
5. **Current tubes** in tubes
* tubes
-
+
6. **Current jobs** in jobs
* urgent
* ready
* reserved
* delayed
* buried
-
+
7. **Current connections** in connections
* written
* producers
* workers
* waiting
-
+
8. **Binlog** in records/s
* written
* migrated
-
+
9. **Uptime** in seconds
* uptime
@@ -195,7 +195,7 @@ Module provides server and tube level statistics:
1. **Jobs rate** in jobs/s
* jobs
-
+
2. **Jobs** in jobs
* using
* ready
@@ -211,12 +211,12 @@ Module provides server and tube level statistics:
4. **Commands** in commands/s
* deletes
* pauses
-
+
5. **Pause** in seconds
* since
* left
-
+
### configuration
Sample:
@@ -252,7 +252,7 @@ It produces:
* recursion
* duplicate
* rejections
-
+
2. **Incoming queries**
* RESERVED0
* A
@@ -273,7 +273,7 @@ It produces:
* SPF
* ANY
* DLV
-
+
3. **Outgoing queries**
* Same as Incoming queries
@@ -323,6 +323,39 @@ local:
---
+# ceph
+
+This module monitors the ceph cluster usage and consuption data of a server.
+
+It produces:
+
+* Cluster statistics (usage, available, latency, objects, read/write rate)
+* OSD usage
+* OSD latency
+* Pool usage
+* Pool read/write operations
+* Pool read/write rate
+* number of objects per pool
+
+**Requirements:**
+
+- `rados` python module
+- Granting read permissions to ceph group from keyring file
+```shell
+# chmod 640 /etc/ceph/ceph.client.admin.keyring
+```
+
+### Configuration
+
+Sample:
+```yaml
+local:
+ config_file: '/etc/ceph/ceph.conf'
+ keyring_file: '/etc/ceph/ceph.client.admin.keyring'
+```
+
+---
+
# couchdb
This module monitors vital statistics of a local Apache CouchDB 2.x server, including:
@@ -467,13 +500,13 @@ localhost:
# dovecot
-This module provides statistics information from dovecot server.
+This module provides statistics information from dovecot server.
Statistics are taken from dovecot socket by executing `EXPORT global` command.
More information about dovecot stats can be found on [project wiki page.](http://wiki2.dovecot.org/Statistics)
**Requirement:**
Dovecot unix socket with R/W permissions for user netdata or dovecot with configured TCP/IP socket.
-
+
Module gives information with following charts:
1. **sessions**
@@ -482,25 +515,25 @@ Module gives information with following charts:
2. **logins**
* logins
-3. **commands** - number of IMAP commands
+3. **commands** - number of IMAP commands
* commands
-
+
4. **Faults**
* minor
* major
-
-5. **Context Switches**
+
+5. **Context Switches**
* volountary
* involountary
-
+
6. **disk** in bytes/s
* read
* write
-
+
7. **bytes** in bytes/s
* read
* write
-
+
8. **number of syscalls** in syscalls/s
* read
* write
@@ -509,7 +542,7 @@ Module gives information with following charts:
* path
* attr
-10. **hits** - number of cache hits
+10. **hits** - number of cache hits
* hits
11. **attempts** - authorization attemts
@@ -519,7 +552,7 @@ Module gives information with following charts:
12. **cache** - cached authorization hits
* hit
* miss
-
+
### configuration
Sample:
@@ -561,7 +594,7 @@ It produces:
* Time spent on garbage collections
4. **Host metrics** charts:
- * Available file descriptors in percent
+ * Available file descriptors in percent
* Opened HTTP connections
* Cluster communication transport metrics
@@ -602,7 +635,7 @@ If no configuration is given, module will fail to run.
# exim
-Simple module executing `exim -bpc` to grab exim queue.
+Simple module executing `exim -bpc` to grab exim queue.
This command can take a lot of time to finish its execution thus it is not recommended to run it every second.
It produces only one chart:
@@ -616,13 +649,13 @@ Configuration is not needed.
# fail2ban
-Module monitor fail2ban log file to show all bans for all active jails
+Module monitor fail2ban log file to show all bans for all active jails
**Requirements:**
* fail2ban.log file MUST BE readable by netdata (A good idea is to add **create 0640 root netdata** to fail2ban conf at logrotate.d)
-
+
It produces one chart with multiple lines (one line per jail)
-
+
### configuration
Sample:
@@ -691,14 +724,14 @@ local:
port : '18121'
secret : 'adminsecret'
acct : False # Freeradius accounting statistics.
- proxy_auth : False # Freeradius proxy authentication statistics.
+ proxy_auth : False # Freeradius proxy authentication statistics.
proxy_acct : False # Freeradius proxy accounting statistics.
```
**Freeradius server configuration:**
The configuration for the status server is automatically created in the sites-available directory.
-By default, server is enabled and can be queried from every client.
+By default, server is enabled and can be queried from every client.
FreeRADIUS will only respond to status-server messages, if the status-server virtual server has been enabled.
To do this, create a link from the sites-enabled directory to the status file in the sites-available directory:
@@ -721,30 +754,30 @@ For the memory statistics, it produces the following charts:
1. **Heap allocations** in kB
* alloc: size of objects allocated on the heap
- * inuse: size of allocated heap spans
-
+ * inuse: size of allocated heap spans
+
2. **Stack allocations** in kB
* inuse: size of allocated stack spans
-
+
3. **MSpan allocations** in kB
* inuse: size of allocated mspan structures
-
+
4. **MCache allocations** in kB
* inuse: size of allocated mcache structures
-
+
5. **Virtual memory** in kB
* sys: size of reserved virtual address space
-
+
6. **Live objects**
* live: number of live objects in memory
-
+
7. **GC pauses average** in ns
* avg: average duration of all GC stop-the-world pauses
-
+
### configuration
-
+
Please see the [wiki page](https://github.com/firehol/netdata/wiki/Monitoring-Go-Applications#using-netdata-go_expvar-module) for detailed info about module configuration.
-
+
---
# haproxy
@@ -760,13 +793,13 @@ Socket MUST be readable AND writable by netdata user.
It produces:
1. **Frontend** family charts
- * Kilobytes in/s
+ * Kilobytes in/s
* Kilobytes out/s
* Sessions current
* Sessions in queue current
2. **Backend** family charts
- * Kilobytes in/s
+ * Kilobytes in/s
* Kilobytes out/s
* Sessions current
* Sessions in queue current
@@ -798,7 +831,7 @@ If no configuration is given, module will fail to run.
---
# hddtemp
-
+
Module monitors disk temperatures from one or more hddtemp daemons.
**Requirement:**
@@ -820,6 +853,75 @@ If no configuration is given, module will attempt to connect to hddtemp daemon o
---
+# httpcheck
+
+Module monitors remote http server for availability and response time.
+
+Following charts are drawn per job:
+
+1. **Response time** ms
+ * Time in 0.1 ms resolution in which the server responds.
+ If the connection failed, the value is missing.
+
+2. **Status** boolean
+ * Connection successful
+ * Unexpected content: No Regex match found in the response
+ * Unexpected status code: Do we get 500 errors?
+ * Connection failed: port not listening or blocked
+ * Connection timed out: host or port unreachable
+
+### configuration
+
+Sample configuration and their default values.
+
+```yaml
+server:
+ url: 'http://host:port/path' # required
+ status_accepted: # optional
+ - 200
+ timeout: 1 # optional, supports decimals (e.g. 0.2)
+ update_every: 3 # optional
+ regex: 'REGULAR_EXPRESSION' # optional, see https://docs.python.org/3/howto/regex.html
+ redirect: yes # optional
+```
+
+### notes
+
+ * The status chart is primarily intended for alarms, badges or for access via API.
+ * A system/service/firewall might block netdata's access if a portscan or
+ similar is detected.
+ * This plugin is meant for simple use cases. Currently, the accuracy of the
+ response time is low and should be used as reference only.
+
+---
+
+# icecast
+
+This module will monitor number of listeners for active sources.
+
+**Requirements:**
+ * icecast version >= 2.4.0
+
+It produces the following charts:
+
+1. **Listeners** in listeners
+ * source number
+
+### configuration
+
+Needs only `url` to server's `/status-json.xsl`
+
+Here is an example for remote server:
+
+```yaml
+remote:
+ url : 'http://1.2.3.4:8443/status-json.xsl'
+```
+
+Without configuration, module attempts to connect to `http://localhost:8443/status-json.xsl`
+
+---
+
# IPFS
Module monitors [IPFS](https://ipfs.io) basic information.
@@ -827,13 +929,13 @@ Module monitors [IPFS](https://ipfs.io) basic information.
1. **Bandwidth** in kbits/s
* in
* out
-
+
2. **Peers**
* peers
-
+
### configuration
-Only url to IPFS server is needed.
+Only url to IPFS server is needed.
Sample:
@@ -860,11 +962,11 @@ It produces:
2. **Total leases**
* leases (overall number of leases for all pools)
-
+
3. **Active leases** for every pools
* leases (number of active leases in pool)
-
+
### configuration
Sample:
@@ -888,8 +990,8 @@ Module monitor /proc/mdstat
It produces:
1. **Health** Number of failed disks in every array (aggregate chart).
-
-2. **Disks stats**
+
+2. **Disks stats**
* total (number of devices array ideally would have)
* inuse (number of devices currently are in use)
@@ -898,11 +1000,11 @@ It produces:
* recovery in percent
* reshape in percent
* check in percent
-
+
4. **Operation status** (if resync/recovery/reshape/check is active)
* finish in minutes
* speed in megabytes/s
-
+
### configuration
No configuration is needed.
@@ -915,20 +1017,20 @@ Memcached monitoring module. Data grabbed from [stats interface](https://github.
1. **Network** in kilobytes/s
* read
* written
-
+
2. **Connections** per second
* current
* rejected
* total
-
+
3. **Items** in cluster
* current
* total
-
+
4. **Evicted and Reclaimed** items
* evicted
* reclaimed
-
+
5. **GET** requests/s
* hits
* misses
@@ -938,7 +1040,7 @@ Memcached monitoring module. Data grabbed from [stats interface](https://github.
7. **SET rate** rate in requests/s
* rate
-
+
8. **DELETE** requests/s
* hits
* misses
@@ -947,22 +1049,22 @@ Memcached monitoring module. Data grabbed from [stats interface](https://github.
* hits
* misses
* bad value
-
+
10. **Increment** requests/s
* hits
* misses
-
+
11. **Decrement** requests/s
* hits
* misses
-
+
12. **Touch** requests/s
* hits
* misses
-
+
13. **Touch rate** rate in requests/s
* rate
-
+
### configuration
Sample:
@@ -1214,7 +1316,7 @@ If no configuration is given, module will attempt to connect to mysql server via
# nginx
-This module will monitor one or more nginx servers depending on configuration. Servers can be either local or remote.
+This module will monitor one or more nginx servers depending on configuration. Servers can be either local or remote.
**Requirements:**
* nginx with configured 'ngx_http_stub_status_module'
@@ -1234,11 +1336,11 @@ It produces following charts:
* reading
* writing
* waiting
-
+
4. **Connections Rate** in connections/s
* accepts
* handled
-
+
### configuration
Needs only `url` to server's `stub_status`
@@ -1258,6 +1360,132 @@ Without configuration, module attempts to connect to `http://localhost/stub_stat
---
+# nginx_plus
+
+This module will monitor one or more nginx_plus servers depending on configuration.
+Servers can be either local or remote.
+
+Example nginx_plus configuration can be found in 'python.d/nginx_plus.conf'
+
+It produces following charts:
+
+1. **Requests total** in requests/s
+ * total
+
+2. **Requests current** in requests
+ * current
+
+3. **Connection Statistics** in connections/s
+ * accepted
+ * dropped
+
+4. **Workers Statistics** in workers
+ * idle
+ * active
+
+5. **SSL Handshakes** in handshakes/s
+ * successful
+ * failed
+
+6. **SSL Session Reuses** in sessions/s
+ * reused
+
+7. **SSL Memory Usage** in percent
+ * usage
+
+8. **Processes** in processes
+ * respawned
+
+For every server zone:
+
+1. **Processing** in requests
+ * processing
+
+2. **Requests** in requests/s
+ * requests
+
+3. **Responses** in requests/s
+ * 1xx
+ * 2xx
+ * 3xx
+ * 4xx
+ * 5xx
+
+4. **Traffic** in kilobits/s
+ * received
+ * sent
+
+For every upstream:
+
+1. **Peers Requests** in requests/s
+ * peer name (dimension per peer)
+
+2. **All Peers Responses** in responses/s
+ * 1xx
+ * 2xx
+ * 3xx
+ * 4xx
+ * 5xx
+
+3. **Peer Responses** in requests/s (for every peer)
+ * 1xx
+ * 2xx
+ * 3xx
+ * 4xx
+ * 5xx
+
+4. **Peers Connections** in active
+ * peer name (dimension per peer)
+
+5. **Peers Connections Usage** in percent
+ * peer name (dimension per peer)
+
+6. **All Peers Traffic** in KB
+ * received
+ * sent
+
+7. **Peer Traffic** in KB/s (for every peer)
+ * received
+ * sent
+
+8. **Peer Timings** in ms (for every peer)
+ * header
+ * response
+
+9. **Memory Usage** in percent
+ * usage
+
+10. **Peers Status** in state
+ * peer name (dimension per peer)
+
+11. **Peers Total Downtime** in seconds
+ * peer name (dimension per peer)
+
+For every cache:
+
+1. **Traffic** in KB
+ * served
+ * written
+ * bypass
+
+2. **Memory Usage** in percent
+ * usage
+
+### configuration
+
+Needs only `url` to server's `status`
+
+Here is an example for local server:
+
+```yaml
+local:
+ url : 'http://localhost/status'
+```
+
+Without configuration, module fail to start.
+
+---
+
# nsd
Module uses the `nsd-control stats_noreset` command to provide `nsd` statistics.
@@ -1313,9 +1541,81 @@ Configuration is not needed.
---
+# ntpd
+
+Module monitors the system variables of the local `ntpd` daemon (optional incl. variables of the polled peers) using the NTP Control Message Protocol via UDP socket, similar to `ntpq`, the [standard NTP query program](http://doc.ntp.org/current-stable/ntpq.html).
+
+**Requirements:**
+ * Version: `NTPv4`
+ * Local interrogation allowed in `/etc/ntp.conf` (default):
+
+```
+# Local users may interrogate the ntp server more closely.
+restrict 127.0.0.1
+restrict ::1
+```
+
+It produces:
+
+1. system
+ * offset
+ * jitter
+ * frequency
+ * delay
+ * dispersion
+ * stratum
+ * tc
+ * precision
+
+2. peers
+ * offset
+ * delay
+ * dispersion
+ * jitter
+ * rootdelay
+ * rootdispersion
+ * stratum
+ * hmode
+ * pmode
+ * hpoll
+ * ppoll
+ * precision
+
+**configuration**
+
+Sample:
+
+```yaml
+update_every: 10
+
+host: 'localhost'
+port: '123'
+show_peers: yes
+# hide peers with source address in ranges 127.0.0.0/8 and 192.168.0.0/16
+peer_filter: '(127\..*)|(192\.168\..*)'
+# check for new/changed peers every 60 updates
+peer_rescan: 60
+```
+
+Sample (multiple jobs):
+
+Note: `ntp.conf` on the host `otherhost` must be configured to allow queries from our local host by including a line like `restrict <IP> nomodify notrap nopeer`.
+
+```yaml
+local:
+ host: 'localhost'
+
+otherhost:
+ host: 'otherhost'
+```
+
+If no configuration is given, module will attempt to connect to `ntpd` on `::1:123` or `127.0.0.1:123` and show charts for the systemvars. Use `show_peers: yes` to also show the charts for configured peers. Local peers in the range `127.0.0.0/8` are hidden by default, use `peer_filter: ''` to show all peers.
+
+---
+
# ovpn_status_log
-Module monitor openvpn-status log file.
+Module monitor openvpn-status log file.
**Requirements:**
@@ -1325,16 +1625,16 @@ Module monitor openvpn-status log file.
* Make sure NETDATA USER CAN READ openvpn-status.log
* Update_every interval MUST MATCH interval on which OpenVPN writes operational status to log file.
-
+
It produces:
1. **Users** OpenVPN active users
* users
-
+
2. **Traffic** OpenVPN overall bandwidth usage in kilobit/s
* in
* out
-
+
### configuration
Sample:
@@ -1348,12 +1648,12 @@ default
# phpfpm
-This module will monitor one or more php-fpm instances depending on configuration.
+This module will monitor one or more php-fpm instances depending on configuration.
**Requirements:**
* php-fpm with enabled `status` page
* access to `status` page via web server
-
+
It produces following charts:
1. **Active Connections**
@@ -1363,15 +1663,15 @@ It produces following charts:
2. **Requests** in requests/s
* requests
-
+
3. **Performance**
* reached
* slow
-
+
### configuration
Needs only `url` to server's `status`
-
+
Here is an example for local instance:
```yaml
@@ -1387,6 +1687,42 @@ Without configuration, module attempts to connect to `http://localhost/status`
---
+# portcheck
+
+Module monitors a remote TCP service.
+
+Following charts are drawn per host:
+
+1. **Latency** ms
+ * Time required to connect to a TCP port.
+ Displays latency in 0.1 ms resolution. If the connection failed, the value is missing.
+
+2. **Status** boolean
+ * Connection successful
+ * Could not create socket: possible DNS problems
+ * Connection refused: port not listening or blocked
+ * Connection timed out: host or port unreachable
+
+
+### configuration
+
+```yaml
+server:
+ host: 'dns or ip' # required
+ port: 22 # required
+ timeout: 1 # optional
+ update_every: 1 # optional
+```
+
+### notes
+
+ * The error chart is intended for alarms, badges or for access via API.
+ * A system/service/firewall might block netdata's access if a portscan or
+ similar is detected.
+ * Currently, the accuracy of the latency is low and should be used as reference only.
+
+---
+
# postfix
Simple module executing `postfix -p` to grab postfix queue.
@@ -1395,7 +1731,7 @@ It produces only two charts:
1. **Postfix Queue Emails**
* emails
-
+
2. **Postfix Queue Emails Size** in KB
* size
@@ -1427,10 +1763,10 @@ Following charts are drawn:
4. **Checkpoints** writes/s
* scheduled
* requested
-
+
5. **Current connections to db** count
* connections
-
+
6. **Tuples returned from db** tuples/s
* sequential
* bitmap
@@ -1451,7 +1787,7 @@ Following charts are drawn:
10. **Locks on db** count per type
* locks
-
+
### configuration
```yaml
@@ -1543,10 +1879,13 @@ Following charts are drawn:
6. **Erlang processes**
* used processes
-7. **Memory**
+7. **Erlang run queue**
+ * Erlang run queue
+
+8. **Memory**
* free memory in megabytes
-8. **Disk Space**
+9. **Disk Space**
* free disk space in gigabytes
### configuration
@@ -1581,16 +1920,16 @@ Following charts are drawn:
* total
* lua
-4. **Database keys**
+4. **Database keys**
* lines are creates dynamically based on how many databases are there
-
+
5. **Clients**
* connected
* blocked
-
+
6. **Slaves**
* connected
-
+
### configuration
```yaml
@@ -1688,6 +2027,39 @@ Please join this discussion for help.
---
+# springboot
+
+This module will monitor one or more Java Spring-boot applications depending on configuration.
+
+It produces following charts:
+
+1. **Response Codes** in requests/s
+ * 1xx
+ * 2xx
+ * 3xx
+ * 4xx
+ * 5xx
+ * others
+
+2. **Threads**
+ * daemon
+ * total
+
+3. **GC Time** in milliseconds and **GC Operations** in operations/s
+ * Copy
+ * MarkSweep
+ * ...
+
+4. **Heap Mmeory Usage** in KB
+ * used
+ * committed
+
+### configuration
+
+Please see the [Monitoring Java Spring Boot Applications](https://github.com/firehol/netdata/wiki/Monitoring-Java-Spring-Boot-Applications) page for detailed info about module configuration.
+
+---
+
# squid
This module will monitor one or more squid instances depending on configuration.
@@ -1707,11 +2079,11 @@ It produces following charts:
3. **Server Bandwidth** in kilobits/s
* in
* out
-
+
4. **Server Requests** in requests/s
* requests
* errors
-
+
### configuration
```yaml
@@ -1724,7 +2096,7 @@ local:
```
Without any configuration module will try to autodetect where squid presents its `counters` data
-
+
---
# smartd_log
@@ -1738,7 +2110,7 @@ It produces following charts (you can add additional attributes in the module co
2. **Start/Stop Count** attribute 4
3. **Reallocated Sectors Count** attribute 5
-
+
4. **Seek Error Rate** attribute 7
5. **Power-On Hours Count** attribute 9
@@ -1750,11 +2122,11 @@ It produces following charts (you can add additional attributes in the module co
8. **Temperature** attribute 194
9. **Current Pending Sectors** attribute 197
-
+
10. **Off-Line Uncorrectable** attribute 198
11. **Write Error Rate** attribute 200
-
+
### configuration
```yaml
@@ -1763,7 +2135,7 @@ local:
```
If no configuration is given, module will attempt to read log files in /var/log/smartd/ directory.
-
+
---
# tomcat
@@ -1781,10 +2153,10 @@ Charts:
3. **Threads**
* current
* busy
-
+
4. **JVM Free Memory** in MB
* jvm
-
+
### configuration
```yaml
@@ -1795,10 +2167,65 @@ localhost:
pass : 'secret_tomcat_password'
```
-Without configuration, module attempts to connect to `http://localhost:8080/manager/status?XML=true`, without any credentials.
+Without configuration, module attempts to connect to `http://localhost:8080/manager/status?XML=true`, without any credentials.
So it will probably fail.
----
+---
+
+# Traefik
+
+Module uses the `health` API to provide statistics.
+
+It produces:
+
+1. **Responses** by statuses
+ * success (1xx, 2xx, 304)
+ * error (5xx)
+ * redirect (3xx except 304)
+ * bad (4xx)
+ * other (all other responses)
+
+2. **Responses** by codes
+ * 2xx (successful)
+ * 5xx (internal server errors)
+ * 3xx (redirect)
+ * 4xx (bad)
+ * 1xx (informational)
+ * other (non-standart responses)
+
+3. **Detailed Response Codes** requests/s (number of responses for each response code family individually)
+
+4. **Requests**/s
+ * request statistics
+
+5. **Total response time**
+ * sum of all response time
+
+6. **Average response time**
+
+7. **Average response time per iteration**
+
+8. **Uptime**
+ * Traefik server uptime
+
+### configuration
+
+Needs only `url` to server's `health`
+
+Here is an example for local server:
+
+```yaml
+update_every : 1
+priority : 60000
+
+local:
+ url : 'http://localhost:8080/health'
+ retries : 10
+```
+
+Without configuration, module attempts to connect to `http://localhost:8080/health`.
+
+---
# varnish cache
@@ -1825,7 +2252,7 @@ It produces:
5. **Expired Objects** in expired/s
* objects
-
+
6. **Least Recently Used Nuked Objects** in nuked/s
* objects
@@ -1837,7 +2264,7 @@ It produces:
* created
* failed
* limited
-
+
9. **Current Queue Length** in requests
* in queue
@@ -1848,22 +2275,22 @@ It produces:
* closed
* resycled
* failed
-
+
10. **Requests To The Backend** in requests/s
* received
-
+
11. **ESI Statistics** in problems/s
* errors
* warnings
-
+
12. **Memory Usage** in MB
* free
* allocated
-
+
13. **Uptime** in seconds
* uptime
-
-
+
+
### configuration
No configuration is needed.
@@ -1893,7 +2320,7 @@ It produces following charts:
* unmatched (the lines in the log file that are not matched)
3. **Detailed Response Codes** requests/s (number of responses for each response code family individually)
-
+
4. **Bandwidth** KB/s
* received (bandwidth of requests)
* send (bandwidth of responses)
@@ -1915,7 +2342,7 @@ It produces following charts:
11. **All Time Unique Client IPs** unique ips/s (unique client IPs since the last restart of netdata)
-
+
### configuration
```yaml
@@ -1933,4 +2360,4 @@ apache_log:
Module has preconfigured jobs for nginx, apache and gunicorn on various distros.
----
+---
diff --git a/python.d/ceph.chart.py b/python.d/ceph.chart.py
new file mode 100644
index 000000000..fb78397d0
--- /dev/null
+++ b/python.d/ceph.chart.py
@@ -0,0 +1,313 @@
+# -*- coding: utf-8 -*-
+# Description: ceph netdata python.d module
+# Author: Luis Eduardo (lets00)
+
+try:
+ import rados
+ CEPH = True
+except ImportError:
+ CEPH = False
+
+import json
+from bases.FrameworkServices.SimpleService import SimpleService
+
+# default module values (can be overridden per job in `config`)
+update_every = 10
+priority = 60000
+retries = 60
+
+ORDER = ['general_usage', 'general_objects', 'general_bytes', 'general_operations',
+ 'general_latency', 'pool_usage', 'pool_objects', 'pool_read_bytes',
+ 'pool_write_bytes', 'pool_read_operations', 'pool_write_operations', 'osd_usage',
+ 'osd_apply_latency', 'osd_commit_latency']
+
+CHARTS = {
+ 'general_usage': {
+ 'options': [None, 'Ceph General Space', 'KB', 'general', 'ceph.general_usage', 'stacked'],
+ 'lines': [
+ ['general_available', 'avail', 'absolute', 1, 1024],
+ ['general_usage', 'used', 'absolute', 1, 1024]
+ ]
+ },
+ 'general_objects': {
+ 'options': [None, 'Ceph General Objects', 'objects', 'general', 'ceph.general_objects', 'area'],
+ 'lines': [
+ ['general_objects', 'cluster', 'absolute']
+ ]
+ },
+ 'general_bytes': {
+ 'options': [None, 'Ceph General Read/Write Data/s', 'KB', 'general', 'ceph.general_bytes',
+ 'area'],
+ 'lines': [
+ ['general_read_bytes', 'read', 'absolute', 1, 1024],
+ ['general_write_bytes', 'write', 'absolute', -1, 1024]
+ ]
+ },
+ 'general_operations': {
+ 'options': [None, 'Ceph General Read/Write Operations/s', 'operations', 'general', 'ceph.general_operations',
+ 'area'],
+ 'lines': [
+ ['general_read_operations', 'read', 'absolute', 1],
+ ['general_write_operations', 'write', 'absolute', -1]
+ ]
+ },
+ 'general_latency': {
+ 'options': [None, 'Ceph General Apply/Commit latency', 'milliseconds', 'general', 'ceph.general_latency',
+ 'area'],
+ 'lines': [
+ ['general_apply_latency', 'apply', 'absolute'],
+ ['general_commit_latency', 'commit', 'absolute']
+ ]
+ },
+ 'pool_usage': {
+ 'options': [None, 'Ceph Pools', 'KB', 'pool', 'ceph.pool_usage', 'line'],
+ 'lines': []
+ },
+ 'pool_objects': {
+ 'options': [None, 'Ceph Pools', 'objects', 'pool', 'ceph.pool_objects', 'line'],
+ 'lines': []
+ },
+ 'pool_read_bytes': {
+ 'options': [None, 'Ceph Read Pool Data/s', 'KB', 'pool', 'ceph.pool_read_bytes', 'area'],
+ 'lines': []
+ },
+ 'pool_write_bytes': {
+ 'options': [None, 'Ceph Write Pool Data/s', 'KB', 'pool', 'ceph.pool_write_bytes', 'area'],
+ 'lines': []
+ },
+ 'pool_read_operations': {
+ 'options': [None, 'Ceph Read Pool Operations/s', 'operations', 'pool', 'ceph.pool_read_operations', 'area'],
+ 'lines': []
+ },
+ 'pool_write_operations': {
+ 'options': [None, 'Ceph Write Pool Operations/s', 'operations', 'pool', 'ceph.pool_write_operations', 'area'],
+ 'lines': []
+ },
+ 'osd_usage': {
+ 'options': [None, 'Ceph OSDs', 'KB', 'osd', 'ceph.osd_usage', 'line'],
+ 'lines': []
+ },
+ 'osd_apply_latency': {
+ 'options': [None, 'Ceph OSDs apply latency', 'milliseconds', 'osd', 'ceph.apply_latency', 'line'],
+ 'lines': []
+ },
+ 'osd_commit_latency': {
+ 'options': [None, 'Ceph OSDs commit latency', 'milliseconds', 'osd', 'ceph.commit_latency', 'line'],
+ 'lines': []
+ }
+
+}
+
+
+class Service(SimpleService):
+ def __init__(self, configuration=None, name=None):
+ SimpleService.__init__(self, configuration=configuration, name=name)
+ self.order = ORDER
+ self.definitions = CHARTS
+ self.config_file = self.configuration.get('config_file')
+ self.keyring_file = self.configuration.get('keyring_file')
+
+ def check(self):
+ """
+ Checks module
+ :return:
+ """
+ if not CEPH:
+ self.error('rados module is needed to use ceph.chart.py')
+ return False
+ if not (self.config_file and self.keyring_file):
+ self.error('config_file and/or keyring_file is not defined')
+ return False
+ try:
+ self.cluster = rados.Rados(conffile=self.config_file,
+ conf=dict(keyring=self.keyring_file))
+ self.cluster.connect()
+ except rados.Error as error:
+ self.error(error)
+ return False
+ self.create_definitions()
+ return True
+
+ def create_definitions(self):
+ """
+ Create dynamically charts options
+ :return: None
+ """
+ # Pool lines
+ for pool in sorted(self._get_df()['pools']):
+ self.definitions['pool_usage']['lines'].append([pool['name'],
+ pool['name'],
+ 'absolute'])
+ self.definitions['pool_objects']['lines'].append(["obj_{0}".format(pool['name']),
+ pool['name'],
+ 'absolute'])
+ self.definitions['pool_read_bytes']['lines'].append(['read_{0}'.format(pool['name']),
+ pool['name'],
+ 'absolute', 1, 1024])
+ self.definitions['pool_write_bytes']['lines'].append(['write_{0}'.format(pool['name']),
+ pool['name'],
+ 'absolute', 1, 1024])
+ self.definitions['pool_read_operations']['lines'].append(['read_operations_{0}'.format(pool['name']),
+ pool['name'],
+ 'absolute'])
+ self.definitions['pool_write_operations']['lines'].append(['write_operations_{0}'.format(pool['name']),
+ pool['name'],
+ 'absolute'])
+
+ # OSD lines
+ for osd in sorted(self._get_osd_df()['nodes']):
+ self.definitions['osd_usage']['lines'].append([osd['name'],
+ osd['name'],
+ 'absolute'])
+ self.definitions['osd_apply_latency']['lines'].append(['apply_latency_{0}'.format(osd['name']),
+ osd['name'],
+ 'absolute'])
+ self.definitions['osd_commit_latency']['lines'].append(['commit_latency_{0}'.format(osd['name']),
+ osd['name'],
+ 'absolute'])
+
+ def get_data(self):
+ """
+ Catch all ceph data
+ :return: dict
+ """
+ try:
+ data = {}
+ df = self._get_df()
+ osd_df = self._get_osd_df()
+ osd_perf = self._get_osd_perf()
+ pool_stats = self._get_osd_pool_stats()
+ data.update(self._get_general(osd_perf, pool_stats))
+ for pool in df['pools']:
+ data.update(self._get_pool_usage(pool))
+ data.update(self._get_pool_objects(pool))
+ for pool_io in pool_stats:
+ data.update(self._get_pool_rw(pool_io))
+ for osd in osd_df['nodes']:
+ data.update(self._get_osd_usage(osd))
+ for osd_apply_commit in osd_perf['osd_perf_infos']:
+ data.update(self._get_osd_latency(osd_apply_commit))
+ return data
+ except (ValueError, AttributeError) as error:
+ self.error(error)
+ return None
+
+ def _get_general(self, osd_perf, pool_stats):
+ """
+ Get ceph's general usage
+ :return: dict
+ """
+ status = self.cluster.get_cluster_stats()
+ read_bytes_sec = 0
+ write_bytes_sec = 0
+ read_op_per_sec = 0
+ write_op_per_sec = 0
+ apply_latency = 0
+ commit_latency = 0
+
+ for pool_rw_io_b in pool_stats:
+ read_bytes_sec += pool_rw_io_b['client_io_rate'].get('read_bytes_sec', 0)
+ write_bytes_sec += pool_rw_io_b['client_io_rate'].get('write_bytes_sec', 0)
+ read_op_per_sec += pool_rw_io_b['client_io_rate'].get('read_op_per_sec', 0)
+ write_op_per_sec += pool_rw_io_b['client_io_rate'].get('write_op_per_sec', 0)
+ for perf in osd_perf['osd_perf_infos']:
+ apply_latency += perf['perf_stats']['apply_latency_ms']
+ commit_latency += perf['perf_stats']['commit_latency_ms']
+
+ return {'general_usage': int(status['kb_used']),
+ 'general_available': int(status['kb_avail']),
+ 'general_objects': int(status['num_objects']),
+ 'general_read_bytes': read_bytes_sec,
+ 'general_write_bytes': write_bytes_sec,
+ 'general_read_operations': read_op_per_sec,
+ 'general_write_operations': write_op_per_sec,
+ 'general_apply_latency': apply_latency,
+ 'general_commit_latency': commit_latency
+ }
+
+ @staticmethod
+ def _get_pool_usage(pool):
+ """
+ Process raw data into pool usage dict information
+ :return: A pool dict with pool name's key and usage bytes' value
+ """
+ return {pool['name']: pool['stats']['kb_used']}
+
+ @staticmethod
+ def _get_pool_objects(pool):
+ """
+ Process raw data into pool usage dict information
+ :return: A pool dict with pool name's key and object numbers
+ """
+ return {'obj_{0}'.format(pool['name']): pool['stats']['objects']}
+
+ @staticmethod
+ def _get_pool_rw(pool):
+ """
+ Get read/write kb and operations in a pool
+ :return: A pool dict with both read/write bytes and operations.
+ """
+ return {'read_{0}'.format(pool['pool_name']): int(pool['client_io_rate'].get('read_bytes_sec', 0)),
+ 'write_{0}'.format(pool['pool_name']): int(pool['client_io_rate'].get('write_bytes_sec', 0)),
+ 'read_operations_{0}'.format(pool['pool_name']): int(pool['client_io_rate'].get('read_op_per_sec', 0)),
+ 'write_operations_{0}'.format(pool['pool_name']): int(pool['client_io_rate'].get('write_op_per_sec', 0))
+ }
+
+ @staticmethod
+ def _get_osd_usage(osd):
+ """
+ Process raw data into osd dict information to get osd usage
+ :return: A osd dict with osd name's key and usage bytes' value
+ """
+ return {osd['name']: float(osd['kb_used'])}
+
+ @staticmethod
+ def _get_osd_latency(osd):
+ """
+ Get ceph osd apply and commit latency
+ :return: A osd dict with osd name's key with both apply and commit latency values
+ """
+ return {'apply_latency_osd.{0}'.format(osd['id']): osd['perf_stats']['apply_latency_ms'],
+ 'commit_latency_osd.{0}'.format(osd['id']): osd['perf_stats']['commit_latency_ms']}
+
+ def _get_df(self):
+ """
+ Get ceph df output
+ :return: ceph df --format json
+ """
+ return json.loads(self.cluster.mon_command(json.dumps({
+ 'prefix': 'df',
+ 'format': 'json'
+ }), '')[1])
+
+ def _get_osd_df(self):
+ """
+ Get ceph osd df output
+ :return: ceph osd df --format json
+ """
+ return json.loads(self.cluster.mon_command(json.dumps({
+ 'prefix': 'osd df',
+ 'format': 'json'
+ }), '')[1])
+
+ def _get_osd_perf(self):
+ """
+ Get ceph osd performance
+ :return: ceph osd perf --format json
+ """
+ return json.loads(self.cluster.mon_command(json.dumps({
+ 'prefix': 'osd perf',
+ 'format': 'json'
+ }), '')[1])
+
+ def _get_osd_pool_stats(self):
+ """
+ Get ceph osd pool status.
+ This command is used to get information about both
+ read/write operation and bytes per second on each pool
+ :return: ceph osd pool stats --format json
+ """
+ return json.loads(self.cluster.mon_command(json.dumps({
+ 'prefix': 'osd pool stats',
+ 'format': 'json'
+ }), '')[1])
diff --git a/python.d/elasticsearch.chart.py b/python.d/elasticsearch.chart.py
index afdf0f1b4..9c2c58944 100644
--- a/python.d/elasticsearch.chart.py
+++ b/python.d/elasticsearch.chart.py
@@ -32,15 +32,36 @@ NODE_STATS = [
'indices.indexing.index_time_in_millis',
'indices.refresh.total',
'indices.refresh.total_time_in_millis',
- 'indices.flush.total'
+ 'indices.flush.total',
'indices.flush.total_time_in_millis',
+ 'indices.translog.operations',
+ 'indices.translog.size_in_bytes',
+ 'indices.translog.uncommitted_operations',
+ 'indices.translog.uncommitted_size_in_bytes',
+ 'indices.segments.count',
+ 'indices.segments.terms_memory_in_bytes',
+ 'indices.segments.stored_fields_memory_in_bytes',
+ 'indices.segments.term_vectors_memory_in_bytes',
+ 'indices.segments.norms_memory_in_bytes',
+ 'indices.segments.points_memory_in_bytes',
+ 'indices.segments.doc_values_memory_in_bytes',
+ 'indices.segments.index_writer_memory_in_bytes',
+ 'indices.segments.version_map_memory_in_bytes',
+ 'indices.segments.fixed_bit_set_memory_in_bytes',
'jvm.gc.collectors.young.collection_count',
'jvm.gc.collectors.old.collection_count',
'jvm.gc.collectors.young.collection_time_in_millis',
'jvm.gc.collectors.old.collection_time_in_millis',
'jvm.mem.heap_used_percent',
+ 'jvm.mem.heap_used_in_bytes',
'jvm.mem.heap_committed_in_bytes',
- 'thread_pool.bulk.queue'
+ 'jvm.buffer_pools.direct.count',
+ 'jvm.buffer_pools.direct.used_in_bytes',
+ 'jvm.buffer_pools.direct.total_capacity_in_bytes',
+ 'jvm.buffer_pools.mapped.count',
+ 'jvm.buffer_pools.mapped.used_in_bytes',
+ 'jvm.buffer_pools.mapped.total_capacity_in_bytes',
+ 'thread_pool.bulk.queue',
'thread_pool.bulk.rejected',
'thread_pool.index.queue',
'thread_pool.index.rejected',
@@ -103,7 +124,9 @@ LATENCY = {
# charts order (can be overridden if you want less charts, or different order)
ORDER = ['search_performance_total', 'search_performance_current', 'search_performance_time',
'search_latency', 'index_performance_total', 'index_performance_current', 'index_performance_time',
- 'index_latency', 'jvm_mem_heap', 'jvm_gc_count', 'jvm_gc_time', 'host_metrics_file_descriptors',
+ 'index_latency', 'index_translog_operations', 'index_translog_size', 'index_segments_count', 'index_segments_memory_writer',
+ 'index_segments_memory', 'jvm_mem_heap', 'jvm_mem_heap_bytes', 'jvm_buffer_pool_count',
+ 'jvm_direct_buffers_memory', 'jvm_mapped_buffers_memory', 'jvm_gc_count', 'jvm_gc_time', 'host_metrics_file_descriptors',
'host_metrics_http', 'host_metrics_transport', 'thread_pool_queued', 'thread_pool_rejected',
'fielddata_cache', 'fielddata_evictions_tripped', 'cluster_health_status', 'cluster_health_nodes',
'cluster_health_shards', 'cluster_stats_nodes', 'cluster_stats_query_cache', 'cluster_stats_docs',
@@ -166,12 +189,78 @@ CHARTS = {
['indexing_latency', 'indexing', 'absolute', 1, 1000],
['flushing_latency', 'flushing', 'absolute', 1, 1000]
]},
+ 'index_translog_operations': {
+ 'options': [None, 'Translog Operations', 'count', 'translog',
+ 'elastic.index_translog_operations', 'area'],
+ 'lines': [
+ ['indices_translog_operations', 'total', 'absolute'],
+ ['indices_translog_uncommitted_operations', 'uncommited', 'absolute']
+ ]},
+ 'index_translog_size': {
+ 'options': [None, 'Translog Size', 'MB', 'translog',
+ 'elastic.index_translog_size', 'area'],
+ 'lines': [
+ ['indices_translog_size_in_bytes', 'total', 'absolute', 1, 1048567],
+ ['indices_translog_uncommitted_size_in_bytes', 'uncommited', 'absolute', 1, 1048567]
+ ]},
+ 'index_segments_count': {
+ 'options': [None, 'Total Number Of Indices Segments', 'count', 'indices segments',
+ 'elastic.index_segments_count', 'line'],
+ 'lines': [
+ ['indices_segments_count', 'segments', 'absolute']
+ ]},
+ 'index_segments_memory_writer': {
+ 'options': [None, 'Index Writer Memory Usage', 'MB', 'indices segments',
+ 'elastic.index_segments_memory_writer', 'area'],
+ 'lines': [
+ ['indices_segments_index_writer_memory_in_bytes', 'total', 'absolute', 1, 1048567]
+ ]},
+ 'index_segments_memory': {
+ 'options': [None, 'Indices Segments Memory Usage', 'MB', 'indices segments',
+ 'elastic.index_segments_memory', 'stacked'],
+ 'lines': [
+ ['indices_segments_terms_memory_in_bytes', 'terms', 'absolute', 1, 1048567],
+ ['indices_segments_stored_fields_memory_in_bytes', 'stored fields', 'absolute', 1, 1048567],
+ ['indices_segments_term_vectors_memory_in_bytes', 'term vectors', 'absolute', 1, 1048567],
+ ['indices_segments_norms_memory_in_bytes', 'norms', 'absolute', 1, 1048567],
+ ['indices_segments_points_memory_in_bytes', 'points', 'absolute', 1, 1048567],
+ ['indices_segments_doc_values_memory_in_bytes', 'doc values', 'absolute', 1, 1048567],
+ ['indices_segments_version_map_memory_in_bytes', 'version map', 'absolute', 1, 1048567],
+ ['indices_segments_fixed_bit_set_memory_in_bytes', 'fixed bit set', 'absolute', 1, 1048567]
+ ]},
'jvm_mem_heap': {
- 'options': [None, 'JVM Heap Currently in Use/Committed', 'percent/MB', 'memory usage and gc',
+ 'options': [None, 'JVM Heap Percentage Currently in Use', 'percent', 'memory usage and gc',
'elastic.jvm_heap', 'area'],
'lines': [
- ['jvm_mem_heap_used_percent', 'inuse', 'absolute'],
- ['jvm_mem_heap_committed_in_bytes', 'commit', 'absolute', -1, 1048576]
+ ['jvm_mem_heap_used_percent', 'inuse', 'absolute']
+ ]},
+ 'jvm_mem_heap_bytes': {
+ 'options': [None, 'JVM Heap Commit And Usage', 'MB', 'memory usage and gc',
+ 'elastic.jvm_heap_bytes', 'area'],
+ 'lines': [
+ ['jvm_mem_heap_committed_in_bytes', 'commited', 'absolute', 1, 1048576],
+ ['jvm_mem_heap_used_in_bytes', 'used', 'absolute', 1, 1048576]
+ ]},
+ 'jvm_buffer_pool_count': {
+ 'options': [None, 'JVM Buffers', 'count', 'memory usage and gc',
+ 'elastic.jvm_buffer_pool_count', 'line'],
+ 'lines': [
+ ['jvm_buffer_pools_direct_count', 'direct', 'absolute'],
+ ['jvm_buffer_pools_mapped_count', 'mapped', 'absolute']
+ ]},
+ 'jvm_direct_buffers_memory': {
+ 'options': [None, 'JVM Direct Buffers Memory', 'MB', 'memory usage and gc',
+ 'elastic.jvm_direct_buffers_memory', 'area'],
+ 'lines': [
+ ['jvm_buffer_pools_direct_used_in_bytes', 'used', 'absolute', 1, 1048567],
+ ['jvm_buffer_pools_direct_total_capacity_in_bytes', 'total capacity', 'absolute', 1, 1048567]
+ ]},
+ 'jvm_mapped_buffers_memory': {
+ 'options': [None, 'JVM Mapped Buffers Memory', 'MB', 'memory usage and gc',
+ 'elastic.jvm_mapped_buffers_memory', 'area'],
+ 'lines': [
+ ['jvm_buffer_pools_mapped_used_in_bytes', 'used', 'absolute', 1, 1048567],
+ ['jvm_buffer_pools_mapped_total_capacity_in_bytes', 'total capacity', 'absolute', 1, 1048567]
]},
'jvm_gc_count': {
'options': [None, 'Garbage Collections', 'counts', 'memory usage and gc', 'elastic.gc_count', 'stacked'],
diff --git a/python.d/haproxy.chart.py b/python.d/haproxy.chart.py
index e72698d10..3061f5ef2 100644
--- a/python.d/haproxy.chart.py
+++ b/python.d/haproxy.chart.py
@@ -1,6 +1,6 @@
# -*- coding: utf-8 -*-
# Description: haproxy netdata python.d module
-# Author: l2isbad
+# Author: l2isbad, ktarasz
from collections import defaultdict
from re import compile as re_compile
@@ -20,8 +20,13 @@ priority = 60000
retries = 60
# charts order (can be overridden if you want less charts, or different order)
-ORDER = ['fbin', 'fbout', 'fscur', 'fqcur', 'bbin', 'bbout', 'bscur', 'bqcur',
- 'health_sdown', 'health_bdown', 'health_idle']
+ORDER = ['fbin', 'fbout', 'fscur', 'fqcur',
+ 'fhrsp_1xx', 'fhrsp_2xx', 'fhrsp_3xx', 'fhrsp_4xx', 'fhrsp_5xx', 'fhrsp_other', 'fhrsp_total',
+ 'bbin', 'bbout', 'bscur', 'bqcur',
+ 'bhrsp_1xx', 'bhrsp_2xx', 'bhrsp_3xx', 'bhrsp_4xx', 'bhrsp_5xx', 'bhrsp_other', 'bhrsp_total',
+ 'bqtime', 'bttime', 'brtime', 'bctime',
+ 'health_sup', 'health_sdown', 'health_bdown', 'health_idle']
+
CHARTS = {
'fbin': {
'options': [None, "Kilobytes In", "KB/s", 'frontend', 'haproxy_f.bin', 'line'],
@@ -39,6 +44,34 @@ CHARTS = {
'options': [None, "Session In Queue", "sessions", 'frontend', 'haproxy_f.qcur', 'line'],
'lines': [
]},
+ 'fhrsp_1xx': {
+ 'options': [None, "HTTP responses with 1xx code", "responses/s", 'frontend', 'haproxy_f.hrsp_1xx', 'line'],
+ 'lines': [
+ ]},
+ 'fhrsp_2xx': {
+ 'options': [None, "HTTP responses with 2xx code", "responses/s", 'frontend', 'haproxy_f.hrsp_2xx', 'line'],
+ 'lines': [
+ ]},
+ 'fhrsp_3xx': {
+ 'options': [None, "HTTP responses with 3xx code", "responses/s", 'frontend', 'haproxy_f.hrsp_3xx', 'line'],
+ 'lines': [
+ ]},
+ 'fhrsp_4xx': {
+ 'options': [None, "HTTP responses with 4xx code", "responses/s", 'frontend', 'haproxy_f.hrsp_4xx', 'line'],
+ 'lines': [
+ ]},
+ 'fhrsp_5xx': {
+ 'options': [None, "HTTP responses with 5xx code", "responses/s", 'frontend', 'haproxy_f.hrsp_5xx', 'line'],
+ 'lines': [
+ ]},
+ 'fhrsp_other': {
+ 'options': [None, "HTTP responses with other codes (protocol error)", "responses/s", 'frontend', 'haproxy_f.hrsp_other', 'line'],
+ 'lines': [
+ ]},
+ 'fhrsp_total': {
+ 'options': [None, "HTTP responses", "responses", 'frontend', 'haproxy_f.hrsp_total', 'line'],
+ 'lines': [
+ ]},
'bbin': {
'options': [None, "Kilobytes In", "KB/s", 'backend', 'haproxy_b.bin', 'line'],
'lines': [
@@ -55,11 +88,64 @@ CHARTS = {
'options': [None, "Sessions In Queue", "sessions", 'backend', 'haproxy_b.qcur', 'line'],
'lines': [
]},
+ 'bhrsp_1xx': {
+ 'options': [None, "HTTP responses with 1xx code", "responses/s", 'backend', 'haproxy_b.hrsp_1xx', 'line'],
+ 'lines': [
+ ]},
+ 'bhrsp_2xx': {
+ 'options': [None, "HTTP responses with 2xx code", "responses/s", 'backend', 'haproxy_b.hrsp_2xx', 'line'],
+ 'lines': [
+ ]},
+ 'bhrsp_3xx': {
+ 'options': [None, "HTTP responses with 3xx code", "responses/s", 'backend', 'haproxy_b.hrsp_3xx', 'line'],
+ 'lines': [
+ ]},
+ 'bhrsp_4xx': {
+ 'options': [None, "HTTP responses with 4xx code", "responses/s", 'backend', 'haproxy_b.hrsp_4xx', 'line'],
+ 'lines': [
+ ]},
+ 'bhrsp_5xx': {
+ 'options': [None, "HTTP responses with 5xx code", "responses/s", 'backend', 'haproxy_b.hrsp_5xx', 'line'],
+ 'lines': [
+ ]},
+ 'bhrsp_other': {
+ 'options': [None, "HTTP responses with other codes (protocol error)", "responses/s", 'backend',
+ 'haproxy_b.hrsp_other', 'line'],
+ 'lines': [
+ ]},
+ 'bhrsp_total': {
+ 'options': [None, "HTTP responses (total)", "responses/s", 'backend', 'haproxy_b.hrsp_total', 'line'],
+ 'lines': [
+ ]},
+ 'bqtime': {
+ 'options': [None, "The average queue time over the 1024 last requests", "ms", 'backend', 'haproxy_b.qtime', 'line'],
+ 'lines': [
+ ]},
+ 'bctime': {
+ 'options': [None, "The average connect time over the 1024 last requests", "ms", 'backend',
+ 'haproxy_b.ctime', 'line'],
+ 'lines': [
+ ]},
+ 'brtime': {
+ 'options': [None, "The average response time over the 1024 last requests", "ms", 'backend',
+ 'haproxy_b.rtime', 'line'],
+ 'lines': [
+ ]},
+ 'bttime': {
+ 'options': [None, "The average total session time over the 1024 last requests", "ms", 'backend',
+ 'haproxy_b.ttime', 'line'],
+ 'lines': [
+ ]},
'health_sdown': {
'options': [None, "Backend Servers In DOWN State", "failed servers", 'health',
'haproxy_hs.down', 'line'],
'lines': [
]},
+ 'health_sup': {
+ 'options': [None, "Backend Servers In UP State", "health servers", 'health',
+ 'haproxy_hs.up', 'line'],
+ 'lines': [
+ ]},
'health_bdown': {
'options': [None, "Is Backend Alive? 1 = DOWN", "failed backend", 'health', 'haproxy_hb.down', 'line'],
'lines': [
@@ -71,10 +157,27 @@ CHARTS = {
]}
}
+
METRICS = {'bin': {'algorithm': 'incremental', 'divisor': 1024},
'bout': {'algorithm': 'incremental', 'divisor': 1024},
'scur': {'algorithm': 'absolute', 'divisor': 1},
- 'qcur': {'algorithm': 'absolute', 'divisor': 1}}
+ 'qcur': {'algorithm': 'absolute', 'divisor': 1},
+ 'hrsp_1xx': {'algorithm': 'incremental', 'divisor': 1},
+ 'hrsp_2xx': {'algorithm': 'incremental', 'divisor': 1},
+ 'hrsp_3xx': {'algorithm': 'incremental', 'divisor': 1},
+ 'hrsp_4xx': {'algorithm': 'incremental', 'divisor': 1},
+ 'hrsp_5xx': {'algorithm': 'incremental', 'divisor': 1},
+ 'hrsp_other': {'algorithm': 'incremental', 'divisor': 1},
+ }
+
+
+BACKEND_METRICS = {
+ 'qtime': {'algorithm': 'absolute', 'divisor': 1},
+ 'ctime': {'algorithm': 'absolute', 'divisor': 1},
+ 'rtime': {'algorithm': 'absolute', 'divisor': 1},
+ 'ttime': {'algorithm': 'absolute', 'divisor': 1}
+}
+
REGEX = dict(url=re_compile(r'idle = (?P<idle>[0-9]+)'),
socket=re_compile(r'Idle_pct: (?P<idle>[0-9]+)'))
@@ -139,11 +242,19 @@ class Service(UrlService, SocketService):
for backend in self.data['backend']:
name, idx = backend['# pxname'], backend['# pxname'].replace('.', '_')
+ stat_data['hsup_' + idx] = len([server for server in self.data['servers']
+ if server_status(server, name, 'UP')])
stat_data['hsdown_' + idx] = len([server for server in self.data['servers']
- if server_down(server, name)])
+ if server_status(server, name, 'DOWN')])
stat_data['hbdown_' + idx] = 1 if backend.get('status') == 'DOWN' else 0
+ for metric in BACKEND_METRICS:
+ stat_data['_'.join(['backend', metric, idx])] = backend.get(metric) or 0
+ hrsp_total = 0
for metric in METRICS:
stat_data['_'.join(['backend', metric, idx])] = backend.get(metric) or 0
+ if metric.startswith('hrsp_'):
+ hrsp_total += int(backend.get(metric) or 0)
+ stat_data['_'.join(['backend', 'hrsp_total', idx])] = hrsp_total
return stat_data
def _get_info_data(self, regex):
@@ -173,12 +284,21 @@ class Service(UrlService, SocketService):
self.definitions['f' + metric]['lines'].append(['_'.join(['frontend', metric, idx]),
name, METRICS[metric]['algorithm'], 1,
METRICS[metric]['divisor']])
+ self.definitions['fhrsp_total']['lines'].append(['_'.join(['frontend', 'hrsp_total', idx]),
+ name, 'incremental', 1, 1])
for back in self.data['backend']:
name, idx = back['# pxname'], back['# pxname'].replace('.', '_')
for metric in METRICS:
self.definitions['b' + metric]['lines'].append(['_'.join(['backend', metric, idx]),
name, METRICS[metric]['algorithm'], 1,
METRICS[metric]['divisor']])
+ self.definitions['bhrsp_total']['lines'].append(['_'.join(['backend', 'hrsp_total', idx]),
+ name, 'incremental', 1, 1])
+ for metric in BACKEND_METRICS:
+ self.definitions['b' + metric]['lines'].append(['_'.join(['backend', metric, idx]),
+ name, BACKEND_METRICS[metric]['algorithm'], 1,
+ BACKEND_METRICS[metric]['divisor']])
+ self.definitions['health_sup']['lines'].append(['hsup_' + idx, name, 'absolute'])
self.definitions['health_sdown']['lines'].append(['hsdown_' + idx, name, 'absolute'])
self.definitions['health_bdown']['lines'].append(['hbdown_' + idx, name, 'absolute'])
@@ -210,8 +330,8 @@ def parse_data_(data):
return result or None
-def server_down(server, backend_name):
- return server.get('# pxname') == backend_name and server.get('status') == 'DOWN'
+def server_status(server, backend_name, status='DOWN'):
+ return server.get('# pxname') == backend_name and server.get('status') == status
def url_remove_params(url):
diff --git a/python.d/httpcheck.chart.py b/python.d/httpcheck.chart.py
new file mode 100644
index 000000000..b0177ff90
--- /dev/null
+++ b/python.d/httpcheck.chart.py
@@ -0,0 +1,117 @@
+# -*- coding: utf-8 -*-
+# Description: http check netdata python.d module
+# Original Author: ccremer (github.com/ccremer)
+
+import urllib3
+import re
+
+try:
+ from time import monotonic as time
+except ImportError:
+ from time import time
+
+from bases.FrameworkServices.UrlService import UrlService
+
+# default module values (can be overridden per job in `config`)
+update_every = 3
+priority = 60000
+retries = 60
+
+# Response
+HTTP_RESPONSE_TIME = 'time'
+HTTP_RESPONSE_LENGTH = 'length'
+
+# Status dimensions
+HTTP_SUCCESS = 'success'
+HTTP_BAD_CONTENT = 'bad_content'
+HTTP_BAD_STATUS = 'bad_status'
+HTTP_TIMEOUT = 'timeout'
+HTTP_NO_CONNECTION = 'no_connection'
+
+ORDER = ['response_time', 'response_length', 'status']
+
+CHARTS = {
+ 'response_time': {
+ 'options': [None, 'HTTP response time', 'ms', 'response', 'httpcheck.responsetime', 'line'],
+ 'lines': [
+ [HTTP_RESPONSE_TIME, 'time', 'absolute', 100, 1000]
+ ]},
+ 'response_length': {
+ 'options': [None, 'HTTP response body length', 'characters', 'response', 'httpcheck.responselength', 'line'],
+ 'lines': [
+ [HTTP_RESPONSE_LENGTH, 'length', 'absolute']
+ ]},
+ 'status': {
+ 'options': [None, 'HTTP status', 'boolean', 'status', 'httpcheck.status', 'line'],
+ 'lines': [
+ [HTTP_SUCCESS, 'success', 'absolute'],
+ [HTTP_BAD_CONTENT, 'bad content', 'absolute'],
+ [HTTP_BAD_STATUS, 'bad status', 'absolute'],
+ [HTTP_TIMEOUT, 'timeout', 'absolute'],
+ [HTTP_NO_CONNECTION, 'no connection', 'absolute']
+ ]}
+}
+
+
+class Service(UrlService):
+ def __init__(self, configuration=None, name=None):
+ UrlService.__init__(self, configuration=configuration, name=name)
+ pattern = self.configuration.get('regex')
+ self.regex = re.compile(pattern) if pattern else None
+ self.status_codes_accepted = self.configuration.get('status_accepted', [200])
+ self.follow_redirect = self.configuration.get('redirect', True)
+ self.order = ORDER
+ self.definitions = CHARTS
+
+ def _get_data(self):
+ """
+ Format data received from http request
+ :return: dict
+ """
+ data = dict()
+ data[HTTP_SUCCESS] = 0
+ data[HTTP_BAD_CONTENT] = 0
+ data[HTTP_BAD_STATUS] = 0
+ data[HTTP_TIMEOUT] = 0
+ data[HTTP_NO_CONNECTION] = 0
+ url = self.url
+ try:
+ start = time()
+ status, content = self._get_raw_data_with_status(retries=1 if self.follow_redirect else False,
+ redirect=self.follow_redirect)
+ diff = time() - start
+ data[HTTP_RESPONSE_TIME] = max(round(diff * 10000), 0)
+ self.debug('Url: {url}. Host responded with status code {code} in {diff} s'.format(
+ url=url, code=status, diff=diff
+ ))
+ self.process_response(content, data, status)
+
+ except urllib3.exceptions.NewConnectionError as error:
+ self.debug("Connection failed: {url}. Error: {error}".format(url=url, error=error))
+ data[HTTP_NO_CONNECTION] = 1
+
+ except (urllib3.exceptions.TimeoutError, urllib3.exceptions.PoolError) as error:
+ self.debug("Connection timed out: {url}. Error: {error}".format(url=url, error=error))
+ data[HTTP_TIMEOUT] = 1
+
+ except urllib3.exceptions.HTTPError as error:
+ self.debug("Connection failed: {url}. Error: {error}".format(url=url, error=error))
+ data[HTTP_NO_CONNECTION] = 1
+
+ except (TypeError, AttributeError) as error:
+ self.error('Url: {url}. Error: {error}'.format(url=url, error=error))
+ return None
+
+ return data
+
+ def process_response(self, content, data, status):
+ data[HTTP_RESPONSE_LENGTH] = len(content)
+ self.debug('Content: \n\n{content}\n'.format(content=content))
+ if status in self.status_codes_accepted:
+ if self.regex and self.regex.search(content) is None:
+ self.debug("No match for regex '{regex}' found".format(regex=self.regex.pattern))
+ data[HTTP_BAD_CONTENT] = 1
+ else:
+ data[HTTP_SUCCESS] = 1
+ else:
+ data[HTTP_BAD_STATUS] = 1
diff --git a/python.d/icecast.chart.py b/python.d/icecast.chart.py
new file mode 100644
index 000000000..792b99f3f
--- /dev/null
+++ b/python.d/icecast.chart.py
@@ -0,0 +1,92 @@
+# -*- coding: utf-8 -*-
+# Description: icecast netdata python.d module
+# Author: Ilya Mashchenko (l2isbad)
+
+import json
+
+from bases.FrameworkServices.UrlService import UrlService
+
+
+priority = 60000
+retries = 60
+
+# charts order (can be overridden if you want less charts, or different order)
+ORDER = ['listeners']
+
+CHARTS = {
+ 'listeners': {
+ 'options': [None, 'Number Of Listeners', 'listeners',
+ 'listeners', 'icecast.listeners', 'line'],
+ 'lines': [
+ ]}
+}
+
+
+class Source:
+ def __init__(self, idx, data):
+ self.name = 'source_{0}'.format(idx)
+ self.is_active = data.get('stream_start') and data.get('server_name')
+ self.listeners = data['listeners']
+
+
+class Service(UrlService):
+ def __init__(self, configuration=None, name=None):
+ UrlService.__init__(self, configuration=configuration, name=name)
+ self.order = ORDER
+ self.definitions = CHARTS
+ self.url = self.configuration.get('url')
+ self._manager = self._build_manager()
+
+ def check(self):
+ """
+ Add active sources to the "listeners" chart
+ :return: bool
+ """
+ sources = self.get_sources()
+ if not sources:
+ return None
+
+ active_sources = 0
+ for idx, raw_source in enumerate(sources):
+ if Source(idx, raw_source).is_active:
+ active_sources += 1
+ dim_id = 'source_{0}'.format(idx)
+ dim = 'source {0}'.format(idx)
+ self.definitions['listeners']['lines'].append([dim_id, dim])
+
+ return bool(active_sources)
+
+ def _get_data(self):
+ """
+ Get number of listeners for every source
+ :return: dict
+ """
+ sources = self.get_sources()
+ if not sources:
+ return None
+
+ data = dict()
+
+ for idx, raw_source in enumerate(sources):
+ source = Source(idx, raw_source)
+ data[source.name] = source.listeners
+
+ return data
+
+ def get_sources(self):
+ """
+ Format data received from http request and return list of sources
+ :return: list
+ """
+
+ raw_data = self._get_raw_data()
+ if not raw_data:
+ return None
+
+ try:
+ data = json.loads(raw_data)
+ except ValueError as error:
+ self.error("JSON decode error:", error)
+ return None
+
+ return data['icestats'].get('source')
diff --git a/python.d/isc_dhcpd.chart.py b/python.d/isc_dhcpd.chart.py
index 60995342c..eb6338452 100644
--- a/python.d/isc_dhcpd.chart.py
+++ b/python.d/isc_dhcpd.chart.py
@@ -2,165 +2,192 @@
# Description: isc dhcpd lease netdata python.d module
# Author: l2isbad
-from time import mktime, strptime, gmtime, time
-from os import stat, access, R_OK
-from os.path import isfile
-try:
- from ipaddress import ip_network, ip_address
- HAVE_IPADDRESS = True
-except ImportError:
- HAVE_IPADDRESS = False
+import os
+import re
+import time
+
+
try:
- from itertools import filterfalse
+ import ipaddress
+ HAVE_IP_ADDRESS = True
except ImportError:
- from itertools import ifilterfalse as filterfalse
+ HAVE_IP_ADDRESS = False
+
+from collections import defaultdict
+from copy import deepcopy
from bases.FrameworkServices.SimpleService import SimpleService
priority = 60000
retries = 60
-update_every = 5
-ORDER = ['pools_utilization', 'pools_active_leases', 'leases_total', 'parse_time', 'leases_size']
+ORDER = ['pools_utilization', 'pools_active_leases', 'leases_total']
CHARTS = {
'pools_utilization': {
- 'options': [None, 'Pools Utilization', 'used in percent', 'utilization',
+ 'options': [None, 'Pools Utilization', '%', 'utilization',
'isc_dhcpd.utilization', 'line'],
'lines': []},
'pools_active_leases': {
- 'options': [None, 'Active Leases', 'leases per pool', 'active leases',
+ 'options': [None, 'Active Leases Per Pool', 'leases', 'active leases',
'isc_dhcpd.active_leases', 'line'],
'lines': []},
'leases_total': {
- 'options': [None, 'Total All Pools', 'number', 'active leases',
+ 'options': [None, 'All Active Leases', 'leases', 'active leases',
'isc_dhcpd.leases_total', 'line'],
- 'lines': [['leases_total', 'leases', 'absolute']]},
- 'parse_time': {
- 'options': [None, 'Parse Time', 'ms', 'parse stats',
- 'isc_dhcpd.parse_time', 'line'],
- 'lines': [['parse_time', 'time', 'absolute']]},
- 'leases_size': {
- 'options': [None, 'Dhcpd Leases File Size', 'kilobytes',
- 'parse stats', 'isc_dhcpd.leases_size', 'line'],
- 'lines': [['leases_size', 'size', 'absolute', 1, 1024]]}}
+ 'lines': [['leases_total', 'leases', 'absolute']],
+ 'variables': [
+ ['leases_size']
+ ]
+ }
+}
+
+
+class DhcpdLeasesFile:
+ def __init__(self, path):
+ self.path = path
+ self.mod_time = 0
+ self.size = 0
+
+ def is_valid(self):
+ return os.path.isfile(self.path) and os.access(self.path, os.R_OK)
+
+ def is_changed(self):
+ mod_time = os.path.getmtime(self.path)
+ if mod_time != self.mod_time:
+ self.mod_time = mod_time
+ self.size = int(os.path.getsize(self.path) / 1024)
+ return True
+ return False
+
+ def get_data(self):
+ try:
+ with open(self.path) as leases:
+ result = defaultdict(dict)
+ for row in leases:
+ row = row.strip()
+ if row.startswith('lease'):
+ address = row[6:-2]
+ elif row.startswith('iaaddr'):
+ address = row[7:-2]
+ elif row.startswith('ends'):
+ result[address]['ends'] = row[5:-1]
+ elif row.startswith('binding state'):
+ result[address]['state'] = row[14:-1]
+ return dict((k, v) for k, v in result.items() if len(v) == 2)
+ except (OSError, IOError):
+ return None
+
+
+class Pool:
+ def __init__(self, name, network):
+ self.id = re.sub(r'[:/.-]+', '_', name)
+ self.name = name
+ self.network = ipaddress.ip_network(address=u'%s' % network)
+
+ def num_hosts(self):
+ return self.network.num_addresses - 2
+
+ def __contains__(self, item):
+ return item.address in self.network
+
+
+class Lease:
+ def __init__(self, address, ends, state):
+ self.address = ipaddress.ip_address(address=u'%s' % address)
+ self.ends = ends
+ self.state = state
+
+ def is_active(self, current_time):
+ # lease_end_time might be epoch
+ if self.ends.startswith('epoch'):
+ epoch = int(self.ends.split()[1].replace(';', ''))
+ return epoch - current_time > 0
+ # max. int for lease-time causes lease to expire in year 2038.
+ # dhcpd puts 'never' in the ends section of active lease
+ elif self.ends == 'never':
+ return True
+ return time.mktime(time.strptime(self.ends, '%w %Y/%m/%d %H:%M:%S')) - current_time > 0
+
+ def is_valid(self):
+ return self.state == 'active'
class Service(SimpleService):
def __init__(self, configuration=None, name=None):
SimpleService.__init__(self, configuration=configuration, name=name)
- self.leases_path = self.configuration.get('leases_path', '/var/lib/dhcp/dhcpd.leases')
self.order = ORDER
- self.definitions = CHARTS
- self.pools = dict()
+ self.definitions = deepcopy(CHARTS)
+
+ lease_path = self.configuration.get('leases_path', '/var/lib/dhcp/dhcpd.leases')
+ self.dhcpd_leases = DhcpdLeasesFile(path=lease_path)
+ self.pools = list()
+ self.data = dict()
# Will work only with 'default' db-time-format (weekday year/month/day hour:minute:second)
# TODO: update algorithm to parse correctly 'local' db-time-format
- # Also only ipv4 supported
def check(self):
- if not HAVE_IPADDRESS:
- self.error('\'python-ipaddress\' module is needed')
+ if not HAVE_IP_ADDRESS:
+ self.error("'python-ipaddress' module is needed")
return False
- if not (isfile(self.leases_path) and access(self.leases_path, R_OK)):
- self.error('Make sure leases_path is correct and leases log file is readable by netdata')
+
+ if not self.dhcpd_leases.is_valid():
+ self.error("Make sure '{path}' is exist and readable by netdata".format(path=self.dhcpd_leases.path))
return False
- if not self.configuration.get('pools'):
+
+ pools = self.configuration.get('pools')
+ if not pools:
self.error('Pools are not defined')
return False
- if not isinstance(self.configuration['pools'], dict):
- self.error('Invalid \'pools\' format')
- return False
- for pool in self.configuration['pools']:
+ for pool in pools:
try:
- net = ip_network(u'%s' % self.configuration['pools'][pool])
- self.pools[pool] = dict(net=net, num_hosts=net.num_addresses - 2)
+ new_pool = Pool(name=pool, network=pools[pool])
except ValueError as error:
- self.error('%s removed, error: %s' % (self.configuration['pools'][pool], error))
+ self.error("'{pool}' was removed, error: {error}".format(pool=pools[pool], error=error))
+ else:
+ self.pools.append(new_pool)
- if not self.pools:
- return False
self.create_charts()
- return True
+ return bool(self.pools)
- def _get_raw_data(self):
- """
- Parses log file
- :return: tuple(
- [ipaddress, lease end time, ...],
- time to parse leases file
- )
- """
- try:
- with open(self.leases_path) as leases:
- time_start = time()
- part1 = filterfalse(find_lease, leases)
- part2 = filterfalse(find_ends, leases)
- result = dict(zip(part1, part2))
- time_end = time()
- file_parse_time = round((time_end - time_start) * 1000)
- return result, file_parse_time
- except (OSError, IOError) as error:
- self.error("Failed to parse leases file:", str(error))
- return None
-
- def _get_data(self):
+ def get_data(self):
"""
:return: dict
"""
- raw_data = self._get_raw_data()
- if not raw_data:
- return None
+ if not self.dhcpd_leases.is_changed():
+ return self.data
- raw_leases, parse_time = raw_data[0], raw_data[1]
+ raw_leases = self.dhcpd_leases.get_data()
+ if not raw_leases:
+ self.data = dict()
+ return None
- # Result: {ipaddress: end lease time, ...}
- active_leases, to_netdata = list(), dict()
- current_time = mktime(gmtime())
+ active_leases = list()
+ current_time = time.mktime(time.gmtime())
- for ip, lease_end_time in raw_leases.items():
- # Result: [active binding, active binding....]. (Expire time (ends date;) - current time > 0)
- if binding_active(lease_end_time=lease_end_time[7:-2],
- current_time=current_time):
- active_leases.append(ip_address(u'%s' % ip[6:-3]))
+ for address in raw_leases:
+ try:
+ new_lease = Lease(address, **raw_leases[address])
+ except ValueError:
+ continue
+ else:
+ if new_lease.is_active(current_time) and new_lease.is_valid():
+ active_leases.append(new_lease)
for pool in self.pools:
- dim_id = pool.replace('.', '_')
- pool_leases_count = len([ip for ip in active_leases if ip in self.pools[pool]['net']])
- to_netdata[dim_id + '_active_leases'] = pool_leases_count
- to_netdata[dim_id + '_utilization'] = float(pool_leases_count) / self.pools[pool]['num_hosts'] * 10000
+ count = len([ip for ip in active_leases if ip in pool])
+ self.data[pool.id + '_active_leases'] = count
+ self.data[pool.id + '_utilization'] = float(count) / pool.num_hosts() * 10000
+
+ self.data['leases_size'] = self.dhcpd_leases.size
+ self.data['leases_total'] = len(active_leases)
- to_netdata['leases_total'] = len(active_leases)
- to_netdata['leases_size'] = stat(self.leases_path)[6]
- to_netdata['parse_time'] = parse_time
- return to_netdata
+ return self.data
def create_charts(self):
for pool in self.pools:
- dim, dim_id = pool, pool.replace('.', '_')
- self.definitions['pools_utilization']['lines'].append([dim_id + '_utilization',
- dim, 'absolute', 1, 100])
- self.definitions['pools_active_leases']['lines'].append([dim_id + '_active_leases',
- dim, 'absolute'])
-
-
-def binding_active(lease_end_time, current_time):
- # lease_end_time might be epoch
- if lease_end_time.startswith('epoch'):
- epoch = int(lease_end_time.split()[1].replace(';',''))
- return epoch - current_time > 0
- # max. int for lease-time causes lease to expire in year 2038.
- # dhcpd puts 'never' in the ends section of active lease
- elif lease_end_time == 'never':
- return True
- else:
- return mktime(strptime(lease_end_time, '%w %Y/%m/%d %H:%M:%S')) - current_time > 0
-
-
-def find_lease(value):
- return value[0:3] != 'lea'
-
-
-def find_ends(value):
- return value[2:6] != 'ends'
+ self.definitions['pools_utilization']['lines'].append([pool.id + '_utilization', pool.name,
+ 'absolute', 1, 100])
+ self.definitions['pools_active_leases']['lines'].append([pool.id + '_active_leases', pool.name])
diff --git a/python.d/mdstat.chart.py b/python.d/mdstat.chart.py
index 794d25641..35ba9058f 100644
--- a/python.d/mdstat.chart.py
+++ b/python.d/mdstat.chart.py
@@ -2,8 +2,9 @@
# Description: mdstat netdata python.d module
# Author: l2isbad
+import re
+
from collections import defaultdict
-from re import compile as re_compile
from bases.FrameworkServices.SimpleService import SimpleService
@@ -11,28 +12,96 @@ priority = 60000
retries = 60
update_every = 1
+ORDER = ['mdstat_health']
+CHARTS = {
+ 'mdstat_health': {
+ 'options': [None, 'Faulty Devices In MD', 'failed disks', 'health', 'md.health', 'line'],
+ 'lines': list()
+ }
+}
+
OPERATIONS = ('check', 'resync', 'reshape', 'recovery', 'finish', 'speed')
+RE_DISKS = re.compile(r' (?P<array>[a-zA-Z_0-9]+) : active .+\['
+ r'(?P<total_disks>[0-9]+)/'
+ r'(?P<inuse_disks>[0-9]+)\]')
+
+RE_STATUS = re.compile(r' (?P<array>[a-zA-Z_0-9]+) : active .+ '
+ r'(?P<operation>[a-z]+) =[ ]{1,2}'
+ r'(?P<operation_status>[0-9.]+).+finish='
+ r'(?P<finish>([0-9.]+))min speed='
+ r'(?P<speed>[0-9]+)')
+
+
+def md_charts(md):
+ order = ['{0}_disks'.format(md.name),
+ '{0}_operation'.format(md.name),
+ '{0}_finish'.format(md.name),
+ '{0}_speed'.format(md.name)
+ ]
+
+ charts = dict()
+ charts[order[0]] = {
+ 'options': [None, 'Disks Stats', 'disks', md.name, 'md.disks', 'stacked'],
+ 'lines': [
+ ['{0}_total_disks'.format(md.name), 'total', 'absolute'],
+ ['{0}_inuse_disks'.format(md.name), 'inuse', 'absolute']
+ ]
+ }
+
+ charts['_'.join([md.name, 'operation'])] = {
+ 'options': [None, 'Current Status', 'percent', md.name, 'md.status', 'line'],
+ 'lines': [
+ ['{0}_resync'.format(md.name), 'resync', 'absolute', 1, 100],
+ ['{0}_recovery'.format(md.name), 'recovery', 'absolute', 1, 100],
+ ['{0}_reshape'.format(md.name), 'reshape', 'absolute', 1, 100],
+ ['{0}_check'.format(md.name), 'check', 'absolute', 1, 100]
+ ]
+ }
+
+ charts['_'.join([md.name, 'finish'])] = {
+ 'options': [None, 'Approximate Time Until Finish', 'seconds', md.name, 'md.rate', 'line'],
+ 'lines': [
+ ['{0}_finish'.format(md.name), 'finish in', 'absolute', 1, 1000]
+ ]
+ }
+
+ charts['_'.join([md.name, 'speed'])] = {
+ 'options': [None, 'Operation Speed', 'KB/s', md.name, 'md.rate', 'line'],
+ 'lines': [
+ ['{0}_speed'.format(md.name), 'speed', 'absolute', 1, 1000]
+ ]
+ }
+
+ return order, charts
+
+
+class MD:
+ def __init__(self, name, stats):
+ self.name = name
+ self.stats = stats
+
+ def update_stats(self, stats):
+ self.stats = stats
+
+ def data(self):
+ stats = dict(('_'.join([self.name, k]), v) for k, v in self.stats.items())
+ stats['{0}_health'.format(self.name)] = int(self.stats['total_disks']) - int(self.stats['inuse_disks'])
+ return stats
+
class Service(SimpleService):
def __init__(self, configuration=None, name=None):
SimpleService.__init__(self, configuration=configuration, name=name)
- self.regex = dict(disks=re_compile(r' (?P<array>[a-zA-Z_0-9]+) : active .+\['
- r'(?P<total_disks>[0-9]+)/'
- r'(?P<inuse_disks>[0-9]+)\]'),
- status=re_compile(r' (?P<array>[a-zA-Z_0-9]+) : active .+ '
- r'(?P<operation>[a-z]+) =[ ]{1,2}'
- r'(?P<operation_status>[0-9.]+).+finish='
- r'(?P<finish>([0-9.]+))min speed='
- r'(?P<speed>[0-9]+)'))
+ self.order = ORDER
+ self.definitions = CHARTS
+ self.mds = dict()
def check(self):
- arrays = find_arrays(self._get_raw_data(), self.regex)
+ arrays = find_arrays(self._get_raw_data())
if not arrays:
self.error('Failed to read data from /proc/mdstat or there is no active arrays')
return None
-
- self.order, self.definitions = create_charts(arrays.keys())
return True
@staticmethod
@@ -47,25 +116,44 @@ class Service(SimpleService):
except (OSError, IOError):
return None
- def _get_data(self):
+ def get_data(self):
"""
Parse data from _get_raw_data()
:return: dict
"""
- raw_data = self._get_raw_data()
- arrays = find_arrays(raw_data, self.regex)
+ arrays = find_arrays(self._get_raw_data())
if not arrays:
return None
- to_netdata = dict()
+ data = dict()
for array, values in arrays.items():
- for key, value in values.items():
- to_netdata['_'.join([array, key])] = value
- return to_netdata
+ if array not in self.mds:
+ md = MD(array, values)
+ self.mds[md.name] = md
+ self.create_new_array_charts(md)
+ else:
+ md = self.mds[array]
+ md.update_stats(values)
+
+ data.update(md.data())
+
+ return data
+ def create_new_array_charts(self, md):
+ order, charts = md_charts(md)
-def find_arrays(raw_data, regex):
+ self.charts['mdstat_health'].add_dimension(['{0}_health'.format(md.name), md.name])
+ for chart_name in order:
+ params = [chart_name] + charts[chart_name]['options']
+ dimensions = charts[chart_name]['lines']
+
+ new_chart = self.charts.add_chart(params)
+ for dimension in dimensions:
+ new_chart.add_dimension(dimension)
+
+
+def find_arrays(raw_data):
if raw_data is None:
return None
data = defaultdict(str)
@@ -79,49 +167,23 @@ def find_arrays(raw_data, regex):
arrays = dict()
for value in data.values():
- match = regex['disks'].search(value)
+ match = RE_DISKS.search(value)
if not match:
continue
match = match.groupdict()
array = match.pop('array')
arrays[array] = match
- arrays[array]['health'] = int(match['total_disks']) - int(match['inuse_disks'])
for operation in OPERATIONS:
arrays[array][operation] = 0
- match = regex['status'].search(value)
+ match = RE_STATUS.search(value)
if match:
match = match.groupdict()
if match['operation'] in OPERATIONS:
+ arrays[array]['operation'] = match['operation']
arrays[array][match['operation']] = float(match['operation_status']) * 100
- arrays[array]['finish'] = float(match['finish']) * 100
- arrays[array]['speed'] = float(match['speed']) / 1000 * 100
+ arrays[array]['finish'] = float(match['finish']) * 1000 * 60
+ arrays[array]['speed'] = float(match['speed']) * 1000
return arrays or None
-
-
-def create_charts(arrays):
- order = ['mdstat_health']
- definitions = dict(mdstat_health={'options': [None, 'Faulty devices in MD', 'failed disks',
- 'health', 'md.health', 'line'],
- 'lines': []})
- for md in arrays:
- order.append(md)
- order.append(md + '_status')
- order.append(md + '_rate')
- definitions['mdstat_health']['lines'].append([md + '_health', md, 'absolute'])
- definitions[md] = {'options': [None, '%s disks stats' % md, 'disks', md, 'md.disks', 'stacked'],
- 'lines': [[md + '_total_disks', 'total', 'absolute'],
- [md + '_inuse_disks', 'inuse', 'absolute']]}
- definitions[md + '_status'] = {'options': [None, '%s current status' % md,
- 'percent', md, 'md.status', 'line'],
- 'lines': [[md + '_resync', 'resync', 'absolute', 1, 100],
- [md + '_recovery', 'recovery', 'absolute', 1, 100],
- [md + '_reshape', 'reshape', 'absolute', 1, 100],
- [md + '_check', 'check', 'absolute', 1, 100]]}
- definitions[md + '_rate'] = {'options': [None, '%s operation status' % md,
- 'rate', md, 'md.rate', 'line'],
- 'lines': [[md + '_finish', 'finish min', 'absolute', 1, 100],
- [md + '_speed', 'MB/s', 'absolute', -1, 100]]}
- return order, definitions
diff --git a/python.d/nginx_plus.chart.py b/python.d/nginx_plus.chart.py
new file mode 100644
index 000000000..509ddd380
--- /dev/null
+++ b/python.d/nginx_plus.chart.py
@@ -0,0 +1,491 @@
+# -*- coding: utf-8 -*-
+# Description: nginx_plus netdata python.d module
+# Author: Ilya Mashchenko (l2isbad)
+
+import re
+
+from collections import defaultdict
+from copy import deepcopy
+from json import loads
+
+try:
+ from collections import OrderedDict
+except ImportError:
+ from third_party.ordereddict import OrderedDict
+
+from bases.FrameworkServices.UrlService import UrlService
+
+# default module values (can be overridden per job in `config`)
+update_every = 1
+priority = 60000
+retries = 60
+
+# charts order (can be overridden if you want less charts, or different order)
+ORDER = ['requests_total', 'requests_current',
+ 'connections_statistics', 'connections_workers',
+ 'ssl_handshakes', 'ssl_session_reuses', 'ssl_memory_usage',
+ 'processes']
+
+CHARTS = {
+ 'requests_total': {
+ 'options': [None, 'Requests Total', 'requests/s',
+ 'requests', 'nginx_plus.requests_total', 'line'],
+ 'lines': [
+ ['requests_total', 'total', 'incremental']
+ ]},
+ 'requests_current': {
+ 'options': [None, 'Requests Current', 'requests',
+ 'requests', 'nginx_plus.requests_current', 'line'],
+ 'lines': [
+ ['requests_current', 'current']
+ ]},
+ 'connections_statistics': {
+ 'options': [None, 'Connections Statistics', 'connections/s',
+ 'connections', 'nginx_plus.connections_statistics', 'stacked'],
+ 'lines': [
+ ['connections_accepted', 'accepted', 'incremental'],
+ ['connections_dropped', 'dropped', 'incremental']
+ ]},
+ 'connections_workers': {
+ 'options': [None, 'Workers Statistics', 'workers',
+ 'connections', 'nginx_plus.connections_workers', 'stacked'],
+ 'lines': [
+ ['connections_idle', 'idle'],
+ ['connections_active', 'active']
+ ]},
+ 'ssl_handshakes': {
+ 'options': [None, 'SSL Handshakes', 'handshakes/s',
+ 'ssl', 'nginx_plus.ssl_handshakes', 'stacked'],
+ 'lines': [
+ ['ssl_handshakes', 'successful', 'incremental'],
+ ['ssl_handshakes_failed', 'failed', 'incremental']
+ ]},
+ 'ssl_session_reuses': {
+ 'options': [None, 'Session Reuses', 'sessions/s',
+ 'ssl', 'nginx_plus.ssl_session_reuses', 'line'],
+ 'lines': [
+ ['ssl_session_reuses', 'reused', 'incremental']
+ ]},
+ 'ssl_memory_usage': {
+ 'options': [None, 'Memory Usage', '%',
+ 'ssl', 'nginx_plus.ssl_memory_usage', 'area'],
+ 'lines': [
+ ['ssl_memory_usage', 'usage', 'absolute', 1, 100]
+ ]},
+ 'processes': {
+ 'options': [None, 'Processes', 'processes',
+ 'processes', 'nginx_plus.processes', 'line'],
+ 'lines': [
+ ['processes_respawned', 'respawned']
+ ]}
+}
+
+
+def cache_charts(cache):
+ family = 'cache {0}'.format(cache.real_name)
+ charts = OrderedDict()
+
+ charts['{0}_traffic'.format(cache.name)] = {
+ 'options': [None, 'Traffic', 'KB', family,
+ 'nginx_plus.cache_traffic', 'stacked'],
+ 'lines': [
+ ['_'.join([cache.name, 'hit_bytes']), 'served', 'absolute', 1, 1024],
+ ['_'.join([cache.name, 'miss_bytes_written']), 'written', 'absolute', 1, 1024],
+ ['_'.join([cache.name, 'miss_bytes']), 'bypass', 'absolute', 1, 1024]
+ ]
+ }
+ charts['{0}_memory_usage'.format(cache.name)] = {
+ 'options': [None, 'Memory Usage', '%', family,
+ 'nginx_plus.cache_memory_usage', 'area'],
+ 'lines': [
+ ['_'.join([cache.name, 'memory_usage']), 'usage', 'absolute', 1, 100],
+ ]
+ }
+ return charts
+
+
+def web_zone_charts(wz):
+ charts = OrderedDict()
+ family = 'web zone {name}'.format(name=wz.real_name)
+
+ # Processing
+ charts['zone_{name}_processing'.format(name=wz.name)] = {
+ 'options': [None, 'Zone "{name}" Processing'.format(name=wz.name), 'requests', family,
+ 'nginx_plus.web_zone_processing', 'line'],
+ 'lines': [
+ ['_'.join([wz.name, 'processing']), 'processing']
+ ]
+ }
+ # Requests
+ charts['zone_{name}_requests'.format(name=wz.name)] = {
+ 'options': [None, 'Zone "{name}" Requests'.format(name=wz.name), 'requests/s', family,
+ 'nginx_plus.web_zone_requests', 'line'],
+ 'lines': [
+ ['_'.join([wz.name, 'requests']), 'requests', 'incremental']
+ ]
+ }
+ # Response Codes
+ charts['zone_{name}_responses'.format(name=wz.name)] = {
+ 'options': [None, 'Zone "{name}" Responses'.format(name=wz.name), 'requests/s', family,
+ 'nginx_plus.web_zone_responses', 'stacked'],
+ 'lines': [
+ ['_'.join([wz.name, 'responses_2xx']), '2xx', 'incremental'],
+ ['_'.join([wz.name, 'responses_5xx']), '5xx', 'incremental'],
+ ['_'.join([wz.name, 'responses_3xx']), '3xx', 'incremental'],
+ ['_'.join([wz.name, 'responses_4xx']), '4xx', 'incremental'],
+ ['_'.join([wz.name, 'responses_1xx']), '1xx', 'incremental']
+ ]
+ }
+ # Traffic
+ charts['zone_{name}_net'.format(name=wz.name)] = {
+ 'options': [None, 'Zone "{name}" Traffic'.format(name=wz.name), 'kilobits/s', family,
+ 'nginx_plus.zone_net', 'area'],
+ 'lines': [
+ ['_'.join([wz.name, 'received']), 'received', 'incremental', 1, 1000],
+ ['_'.join([wz.name, 'sent']), 'sent', 'incremental', -1, 1000]
+ ]
+ }
+ return charts
+
+
+def web_upstream_charts(wu):
+ def dimensions(value, a='absolute', m=1, d=1):
+ dims = list()
+ for p in wu:
+ dims.append(['_'.join([wu.name, p.server, value]), p.real_server, a, m, d])
+ return dims
+
+ charts = OrderedDict()
+ family = 'web upstream {name}'.format(name=wu.real_name)
+
+ # Requests
+ charts['web_upstream_{name}_requests'.format(name=wu.name)] = {
+ 'options': [None, 'Peers Requests', 'requests/s', family,
+ 'nginx_plus.web_upstream_requests', 'line'],
+ 'lines': dimensions('requests', 'incremental')
+ }
+ # Responses Codes
+ charts['web_upstream_{name}_all_responses'.format(name=wu.name)] = {
+ 'options': [None, 'All Peers Responses', 'responses/s', family,
+ 'nginx_plus.web_upstream_all_responses', 'stacked'],
+ 'lines': [
+ ['_'.join([wu.name, 'responses_2xx']), '2xx', 'incremental'],
+ ['_'.join([wu.name, 'responses_5xx']), '5xx', 'incremental'],
+ ['_'.join([wu.name, 'responses_3xx']), '3xx', 'incremental'],
+ ['_'.join([wu.name, 'responses_4xx']), '4xx', 'incremental'],
+ ['_'.join([wu.name, 'responses_1xx']), '1xx', 'incremental'],
+ ]
+ }
+ for peer in wu:
+ charts['web_upstream_{0}_{1}_responses'.format(wu.name, peer.id)] = {
+ 'options': [None, 'Peer "{0}" Responses'.format(peer.real_server), 'responses/s', family,
+ 'nginx_plus.web_upstream_peer_responses', 'stacked'],
+ 'lines': [
+ ['_'.join([wu.name, peer.server, 'responses_2xx']), '2xx', 'incremental'],
+ ['_'.join([wu.name, peer.server, 'responses_5xx']), '5xx', 'incremental'],
+ ['_'.join([wu.name, peer.server, 'responses_3xx']), '3xx', 'incremental'],
+ ['_'.join([wu.name, peer.server, 'responses_4xx']), '4xx', 'incremental'],
+ ['_'.join([wu.name, peer.server, 'responses_1xx']), '1xx', 'incremental']
+ ]
+ }
+ # Connections
+ charts['web_upstream_{name}_connections'.format(name=wu.name)] = {
+ 'options': [None, 'Peers Connections', 'active', family,
+ 'nginx_plus.web_upstream_connections', 'line'],
+ 'lines': dimensions('active')
+ }
+ charts['web_upstream_{name}_connections_usage'.format(name=wu.name)] = {
+ 'options': [None, 'Peers Connections Usage', '%', family,
+ 'nginx_plus.web_upstream_connections_usage', 'line'],
+ 'lines': dimensions('connections_usage', d=100)
+ }
+ # Traffic
+ charts['web_upstream_{0}_all_net'.format(wu.name)] = {
+ 'options': [None, 'All Peers Traffic', 'kilobits/s', family,
+ 'nginx_plus.web_upstream_all_net', 'area'],
+ 'lines': [
+ ['{0}_received'.format(wu.name), 'received', 'incremental', 1, 1000],
+ ['{0}_sent'.format(wu.name), 'sent', 'incremental', -1, 1000]
+ ]
+ }
+ for peer in wu:
+ charts['web_upstream_{0}_{1}_net'.format(wu.name, peer.id)] = {
+ 'options': [None, 'Peer "{0}" Traffic'.format(peer.real_server), 'kilobits/s', family,
+ 'nginx_plus.web_upstream_peer_traffic', 'area'],
+ 'lines': [
+ ['{0}_{1}_received'.format(wu.name, peer.server), 'received', 'incremental', 1, 1000],
+ ['{0}_{1}_sent'.format(wu.name, peer.server), 'sent', 'incremental', -1, 1000]
+ ]
+ }
+ # Response Time
+ for peer in wu:
+ charts['web_upstream_{0}_{1}_timings'.format(wu.name, peer.id)] = {
+ 'options': [None, 'Peer "{0}" Timings'.format(peer.real_server), 'ms', family,
+ 'nginx_plus.web_upstream_peer_timings', 'line'],
+ 'lines': [
+ ['_'.join([wu.name, peer.server, 'header_time']), 'header'],
+ ['_'.join([wu.name, peer.server, 'response_time']), 'response']
+ ]
+ }
+ # Memory Usage
+ charts['web_upstream_{name}_memory_usage'.format(name=wu.name)] = {
+ 'options': [None, 'Memory Usage', '%', family,
+ 'nginx_plus.web_upstream_memory_usage', 'area'],
+ 'lines': [
+ ['_'.join([wu.name, 'memory_usage']), 'usage', 'absolute', 1, 100]
+ ]
+ }
+ # State
+ charts['web_upstream_{name}_status'.format(name=wu.name)] = {
+ 'options': [None, 'Peers Status', 'state', family,
+ 'nginx_plus.web_upstream_status', 'line'],
+ 'lines': dimensions('state')
+ }
+ # Downtime
+ charts['web_upstream_{name}_downtime'.format(name=wu.name)] = {
+ 'options': [None, 'Peers Downtime', 'seconds', family,
+ 'nginx_plus.web_upstream_peer_downtime', 'line'],
+ 'lines': dimensions('downtime', d=1000)
+ }
+
+ return charts
+
+
+METRICS = dict(
+ SERVER=[
+ 'processes.respawned',
+ 'connections.accepted',
+ 'connections.dropped',
+ 'connections.active',
+ 'connections.idle',
+ 'ssl.handshakes',
+ 'ssl.handshakes_failed',
+ 'ssl.session_reuses',
+ 'requests.total',
+ 'requests.current',
+ 'slabs.SSL.pages.free',
+ 'slabs.SSL.pages.used'
+ ],
+ WEB_ZONE=[
+ 'processing',
+ 'requests',
+ 'responses.1xx',
+ 'responses.2xx',
+ 'responses.3xx',
+ 'responses.4xx',
+ 'responses.5xx',
+ 'discarded',
+ 'received',
+ 'sent'
+ ],
+ WEB_UPSTREAM_PEER=[
+ 'id',
+ 'server',
+ 'name',
+ 'state',
+ 'active',
+ 'max_conns',
+ 'requests',
+ 'header_time', # alive only
+ 'response_time', # alive only
+ 'responses.1xx',
+ 'responses.2xx',
+ 'responses.3xx',
+ 'responses.4xx',
+ 'responses.5xx',
+ 'sent',
+ 'received',
+ 'downtime'
+ ],
+ WEB_UPSTREAM_SUMMARY=[
+ 'responses.1xx',
+ 'responses.2xx',
+ 'responses.3xx',
+ 'responses.4xx',
+ 'responses.5xx',
+ 'sent',
+ 'received'
+ ],
+ CACHE=[
+ 'hit.bytes', # served
+ 'miss.bytes_written', # written
+ 'miss.bytes' # bypass
+
+ ]
+)
+
+BAD_SYMBOLS = re.compile(r'[:/.-]+')
+
+
+class Cache:
+ key = 'caches'
+ charts = cache_charts
+
+ def __init__(self, **kw):
+ self.real_name = kw['name']
+ self.name = BAD_SYMBOLS.sub('_', self.real_name)
+
+ def memory_usage(self, data):
+ used = data['slabs'][self.real_name]['pages']['used']
+ free = data['slabs'][self.real_name]['pages']['free']
+ return used / float(free + used) * 1e4
+
+ def get_data(self, raw_data):
+ zone_data = raw_data['caches'][self.real_name]
+ data = parse_json(zone_data, METRICS['CACHE'])
+ data['memory_usage'] = self.memory_usage(raw_data)
+ return dict(('_'.join([self.name, k]), v) for k, v in data.items())
+
+
+class WebZone:
+ key = 'server_zones'
+ charts = web_zone_charts
+
+ def __init__(self, **kw):
+ self.real_name = kw['name']
+ self.name = BAD_SYMBOLS.sub('_', self.real_name)
+
+ def get_data(self, raw_data):
+ zone_data = raw_data['server_zones'][self.real_name]
+ data = parse_json(zone_data, METRICS['WEB_ZONE'])
+ return dict(('_'.join([self.name, k]), v) for k, v in data.items())
+
+
+class WebUpstream:
+ key = 'upstreams'
+ charts = web_upstream_charts
+
+ def __init__(self, **kw):
+ self.real_name = kw['name']
+ self.name = BAD_SYMBOLS.sub('_', self.real_name)
+ self.peers = OrderedDict()
+
+ peers = kw['response']['upstreams'][self.real_name]['peers']
+ for peer in peers:
+ self.add_peer(peer['id'], peer['server'])
+
+ def __iter__(self):
+ return iter(self.peers.values())
+
+ def add_peer(self, idx, server):
+ peer = WebUpstreamPeer(idx, server)
+ self.peers[peer.real_server] = peer
+ return peer
+
+ def peers_stats(self, peers):
+ data = dict()
+ for peer in self.peers.values():
+ if not peer.active:
+ continue
+ try:
+ data.update(peer.get_data(peers[peer.id]))
+ except KeyError:
+ peer.active = False
+ return data
+
+ def memory_usage(self, data):
+ used = data['slabs'][self.real_name]['pages']['used']
+ free = data['slabs'][self.real_name]['pages']['free']
+ return used / float(free + used) * 1e4
+
+ def summary_stats(self, data):
+ rv = defaultdict(int)
+ for metric in METRICS['WEB_UPSTREAM_SUMMARY']:
+ for peer in self.peers.values():
+ if peer.active:
+ metric = '_'.join(metric.split('.'))
+ rv[metric] += data['_'.join([peer.server, metric])]
+ return rv
+
+ def get_data(self, raw_data):
+ data = dict()
+ peers = raw_data['upstreams'][self.real_name]['peers']
+ data.update(self.peers_stats(peers))
+ data.update(self.summary_stats(data))
+ data['memory_usage'] = self.memory_usage(raw_data)
+ return dict(('_'.join([self.name, k]), v) for k, v in data.items())
+
+
+class WebUpstreamPeer:
+ def __init__(self, idx, server):
+ self.id = idx
+ self.real_server = server
+ self.server = BAD_SYMBOLS.sub('_', self.real_server)
+ self.active = True
+
+ def get_data(self, raw):
+ data = dict(header_time=0, response_time=0, max_conns=0)
+ data.update(parse_json(raw, METRICS['WEB_UPSTREAM_PEER']))
+ data['connections_usage'] = 0 if not data['max_conns'] else data['active'] / float(data['max_conns']) * 1e4
+ data['state'] = int(data['state'] == 'up')
+ return dict(('_'.join([self.server, k]), v) for k, v in data.items())
+
+
+class Service(UrlService):
+ def __init__(self, configuration=None, name=None):
+ UrlService.__init__(self, configuration=configuration, name=name)
+ self.order = list(ORDER)
+ self.definitions = deepcopy(CHARTS)
+ self.objects = dict()
+
+ def check(self):
+ if not self.url:
+ self.error('URL is not defined')
+ return None
+
+ self._manager = self._build_manager()
+ if not self._manager:
+ return None
+
+ raw_data = self._get_raw_data()
+ if not raw_data:
+ return None
+
+ try:
+ response = loads(raw_data)
+ except ValueError:
+ return None
+
+ for obj_cls in [WebZone, WebUpstream, Cache]:
+ for obj_name in response.get(obj_cls.key, list()):
+ obj = obj_cls(name=obj_name, response=response)
+ self.objects[obj.real_name] = obj
+ charts = obj_cls.charts(obj)
+ for chart in charts:
+ self.order.append(chart)
+ self.definitions[chart] = charts[chart]
+
+ return bool(self.objects)
+
+ def _get_data(self):
+ """
+ Format data received from http request
+ :return: dict
+ """
+ raw_data = self._get_raw_data()
+ if not raw_data:
+ return None
+ response = loads(raw_data)
+
+ data = parse_json(response, METRICS['SERVER'])
+ data['ssl_memory_usage'] = data['slabs_SSL_pages_used'] / float(data['slabs_SSL_pages_free']) * 1e4
+
+ for obj in self.objects.values():
+ if obj.real_name in response[obj.key]:
+ data.update(obj.get_data(response))
+
+ return data
+
+
+def parse_json(raw_data, metrics):
+ data = dict()
+ for metric in metrics:
+ value = raw_data
+ metrics_list = metric.split('.')
+ try:
+ for m in metrics_list:
+ value = value[m]
+ except KeyError:
+ continue
+ data['_'.join(metrics_list)] = value
+ return data
diff --git a/python.d/ntpd.chart.py b/python.d/ntpd.chart.py
new file mode 100644
index 000000000..05209da87
--- /dev/null
+++ b/python.d/ntpd.chart.py
@@ -0,0 +1,380 @@
+# -*- coding: utf-8 -*-
+# Description: ntpd netdata python.d module
+# Author: Sven Mäder (rda0)
+# Author: Ilya Mashchenko (l2isbad)
+
+import struct
+import re
+
+from bases.FrameworkServices.SocketService import SocketService
+
+# default module values
+update_every = 1
+priority = 60000
+retries = 60
+
+# NTP Control Message Protocol constants
+MODE = 6
+HEADER_FORMAT = '!BBHHHHH'
+HEADER_LEN = 12
+OPCODES = {
+ 'readstat': 1,
+ 'readvar': 2
+}
+
+# Maximal dimension precision
+PRECISION = 1000000
+
+# Static charts
+ORDER = [
+ 'sys_offset',
+ 'sys_jitter',
+ 'sys_frequency',
+ 'sys_wander',
+ 'sys_rootdelay',
+ 'sys_rootdisp',
+ 'sys_stratum',
+ 'sys_tc',
+ 'sys_precision',
+ 'peer_offset',
+ 'peer_delay',
+ 'peer_dispersion',
+ 'peer_jitter',
+ 'peer_xleave',
+ 'peer_rootdelay',
+ 'peer_rootdisp',
+ 'peer_stratum',
+ 'peer_hmode',
+ 'peer_pmode',
+ 'peer_hpoll',
+ 'peer_ppoll',
+ 'peer_precision'
+]
+
+CHARTS = {
+ 'sys_offset': {
+ 'options': [None, 'Combined offset of server relative to this host', 'ms', 'system', 'ntpd.sys_offset', 'area'],
+ 'lines': [
+ ['offset', 'offset', 'absolute', 1, PRECISION]
+ ]},
+ 'sys_jitter': {
+ 'options': [None, 'Combined system jitter and clock jitter', 'ms', 'system', 'ntpd.sys_jitter', 'line'],
+ 'lines': [
+ ['sys_jitter', 'system', 'absolute', 1, PRECISION],
+ ['clk_jitter', 'clock', 'absolute', 1, PRECISION]
+ ]},
+ 'sys_frequency': {
+ 'options': [None, 'Frequency offset relative to hardware clock', 'ppm', 'system', 'ntpd.sys_frequency', 'area'],
+ 'lines': [
+ ['frequency', 'frequency', 'absolute', 1, PRECISION]
+ ]},
+ 'sys_wander': {
+ 'options': [None, 'Clock frequency wander', 'ppm', 'system', 'ntpd.sys_wander', 'area'],
+ 'lines': [
+ ['clk_wander', 'clock', 'absolute', 1, PRECISION]
+ ]},
+ 'sys_rootdelay': {
+ 'options': [None, 'Total roundtrip delay to the primary reference clock', 'ms', 'system',
+ 'ntpd.sys_rootdelay', 'area'],
+ 'lines': [
+ ['rootdelay', 'delay', 'absolute', 1, PRECISION]
+ ]},
+ 'sys_rootdisp': {
+ 'options': [None, 'Total root dispersion to the primary reference clock', 'ms', 'system',
+ 'ntpd.sys_rootdisp', 'area'],
+ 'lines': [
+ ['rootdisp', 'dispersion', 'absolute', 1, PRECISION]
+ ]},
+ 'sys_stratum': {
+ 'options': [None, 'Stratum (1-15)', 'stratum', 'system', 'ntpd.sys_stratum', 'line'],
+ 'lines': [
+ ['stratum', 'stratum', 'absolute', 1, PRECISION]
+ ]},
+ 'sys_tc': {
+ 'options': [None, 'Time constant and poll exponent (3-17)', 'log2 s', 'system', 'ntpd.sys_tc', 'line'],
+ 'lines': [
+ ['tc', 'current', 'absolute', 1, PRECISION],
+ ['mintc', 'minimum', 'absolute', 1, PRECISION]
+ ]},
+ 'sys_precision': {
+ 'options': [None, 'Precision', 'log2 s', 'system', 'ntpd.sys_precision', 'line'],
+ 'lines': [
+ ['precision', 'precision', 'absolute', 1, PRECISION]
+ ]}
+}
+
+PEER_CHARTS = {
+ 'peer_offset': {
+ 'options': [None, 'Filter offset', 'ms', 'peers', 'ntpd.peer_offset', 'line'],
+ 'lines': [
+ ]},
+ 'peer_delay': {
+ 'options': [None, 'Filter delay', 'ms', 'peers', 'ntpd.peer_delay', 'line'],
+ 'lines': [
+ ]},
+ 'peer_dispersion': {
+ 'options': [None, 'Filter dispersion', 'ms', 'peers', 'ntpd.peer_dispersion', 'line'],
+ 'lines': [
+ ]},
+ 'peer_jitter': {
+ 'options': [None, 'Filter jitter', 'ms', 'peers', 'ntpd.peer_jitter', 'line'],
+ 'lines': [
+ ]},
+ 'peer_xleave': {
+ 'options': [None, 'Interleave delay', 'ms', 'peers', 'ntpd.peer_xleave', 'line'],
+ 'lines': [
+ ]},
+ 'peer_rootdelay': {
+ 'options': [None, 'Total roundtrip delay to the primary reference clock', 'ms', 'peers',
+ 'ntpd.peer_rootdelay', 'line'],
+ 'lines': [
+ ]},
+ 'peer_rootdisp': {
+ 'options': [None, 'Total root dispersion to the primary reference clock', 'ms', 'peers',
+ 'ntpd.peer_rootdisp', 'line'],
+ 'lines': [
+ ]},
+ 'peer_stratum': {
+ 'options': [None, 'Stratum (1-15)', 'stratum', 'peers', 'ntpd.peer_stratum', 'line'],
+ 'lines': [
+ ]},
+ 'peer_hmode': {
+ 'options': [None, 'Host mode (1-6)', 'hmode', 'peers', 'ntpd.peer_hmode', 'line'],
+ 'lines': [
+ ]},
+ 'peer_pmode': {
+ 'options': [None, 'Peer mode (1-5)', 'pmode', 'peers', 'ntpd.peer_pmode', 'line'],
+ 'lines': [
+ ]},
+ 'peer_hpoll': {
+ 'options': [None, 'Host poll exponent', 'log2 s', 'peers', 'ntpd.peer_hpoll', 'line'],
+ 'lines': [
+ ]},
+ 'peer_ppoll': {
+ 'options': [None, 'Peer poll exponent', 'log2 s', 'peers', 'ntpd.peer_ppoll', 'line'],
+ 'lines': [
+ ]},
+ 'peer_precision': {
+ 'options': [None, 'Precision', 'log2 s', 'peers', 'ntpd.peer_precision', 'line'],
+ 'lines': [
+ ]}
+}
+
+
+class Base:
+ regex = re.compile(r'([a-z_]+)=((?:-)?[0-9]+(?:\.[0-9]+)?)')
+
+ @staticmethod
+ def get_header(associd=0, operation='readvar'):
+ """
+ Constructs the NTP Control Message header:
+ 0 1 2 3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ |LI | VN |Mode |R|E|M| OpCode | Sequence Number |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Status | Association ID |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Offset | Count |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ """
+ version = 2
+ sequence = 1
+ status = 0
+ offset = 0
+ count = 0
+ header = struct.pack(HEADER_FORMAT, (version << 3 | MODE), OPCODES[operation],
+ sequence, status, associd, offset, count)
+ return header
+
+
+class System(Base):
+ def __init__(self):
+ self.request = self.get_header()
+
+ def get_data(self, raw):
+ """
+ Extracts key=value pairs with float/integer from ntp response packet data.
+ """
+ data = dict()
+ for key, value in self.regex.findall(raw):
+ data[key] = float(value) * PRECISION
+ return data
+
+
+class Peer(Base):
+ def __init__(self, idx, name):
+ self.id = idx
+ self.real_name = name
+ self.name = name.replace('.', '_')
+ self.request = self.get_header(self.id)
+
+ def get_data(self, raw):
+ """
+ Extracts key=value pairs with float/integer from ntp response packet data.
+ """
+ data = dict()
+ for key, value in self.regex.findall(raw):
+ dimension = '_'.join([self.name, key])
+ data[dimension] = float(value) * PRECISION
+ return data
+
+
+class Service(SocketService):
+ def __init__(self, configuration=None, name=None):
+ SocketService.__init__(self, configuration=configuration, name=name)
+ self.order = list(ORDER)
+ self.definitions = dict(CHARTS)
+
+ self.port = 'ntp'
+ self.dgram_socket = True
+ self.system = System()
+ self.peers = dict()
+ self.request = str()
+ self.retries = 0
+ self.show_peers = self.configuration.get('show_peers', False)
+ self.peer_rescan = self.configuration.get('peer_rescan', 60)
+
+ if self.show_peers:
+ self.definitions.update(PEER_CHARTS)
+
+ def check(self):
+ """
+ Checks if we can get valid systemvars.
+ If not, returns None to disable module.
+ """
+ self._parse_config()
+
+ peer_filter = self.configuration.get('peer_filter', r'127\..*')
+ try:
+ self.peer_filter = re.compile(r'^((0\.0\.0\.0)|({0}))$'.format(peer_filter))
+ except re.error as error:
+ self.error('Compile pattern error (peer_filter) : {0}'.format(error))
+ return None
+
+ self.request = self.system.request
+ raw_systemvars = self._get_raw_data()
+
+ if not self.system.get_data(raw_systemvars):
+ return None
+
+ return True
+
+ def get_data(self):
+ """
+ Gets systemvars data on each update.
+ Gets peervars data for all peers on each update.
+ """
+ data = dict()
+
+ self.request = self.system.request
+ raw = self._get_raw_data()
+ if not raw:
+ return None
+
+ data.update(self.system.get_data(raw))
+
+ if not self.show_peers:
+ return data
+
+ if not self.peers or self.runs_counter % self.peer_rescan == 0 or self.retries > 8:
+ self.find_new_peers()
+
+ for peer in self.peers.values():
+ self.request = peer.request
+ peer_data = peer.get_data(self._get_raw_data())
+ if peer_data:
+ data.update(peer_data)
+ else:
+ self.retries += 1
+
+ return data
+
+ def find_new_peers(self):
+ new_peers = dict((p.real_name, p) for p in self.get_peers())
+ if new_peers:
+
+ peers_to_remove = set(self.peers) - set(new_peers)
+ peers_to_add = set(new_peers) - set(self.peers)
+
+ for peer_name in peers_to_remove:
+ self.hide_old_peer_from_charts(self.peers[peer_name])
+ del self.peers[peer_name]
+
+ for peer_name in peers_to_add:
+ self.add_new_peer_to_charts(new_peers[peer_name])
+
+ self.peers.update(new_peers)
+ self.retries = 0
+
+ def add_new_peer_to_charts(self, peer):
+ for chart_id in set(self.charts.charts) & set(PEER_CHARTS):
+ dim_id = peer.name + chart_id[4:]
+ if dim_id not in self.charts[chart_id]:
+ self.charts[chart_id].add_dimension([dim_id, peer.real_name, 'absolute', 1, PRECISION])
+ else:
+ self.charts[chart_id].hide_dimension(dim_id, reverse=True)
+
+ def hide_old_peer_from_charts(self, peer):
+ for chart_id in set(self.charts.charts) & set(PEER_CHARTS):
+ dim_id = peer.name + chart_id[4:]
+ self.charts[chart_id].hide_dimension(dim_id)
+
+ def get_peers(self):
+ self.request = Base.get_header(operation='readstat')
+
+ raw_data = self._get_raw_data(raw=True)
+ if not raw_data:
+ return list()
+
+ peer_ids = self.get_peer_ids(raw_data)
+ if not peer_ids:
+ return list()
+
+ new_peers = list()
+ for peer_id in peer_ids:
+ self.request = Base.get_header(peer_id)
+ raw_peer_data = self._get_raw_data()
+ if not raw_peer_data:
+ continue
+ srcadr = re.search(r'(srcadr)=([^,]+)', raw_peer_data)
+ if not srcadr:
+ continue
+ srcadr = srcadr.group(2)
+ if self.peer_filter.search(srcadr):
+ continue
+ stratum = re.search(r'(stratum)=([^,]+)', raw_peer_data)
+ if not stratum:
+ continue
+ if int(stratum.group(2)) > 15:
+ continue
+
+ new_peer = Peer(idx=peer_id, name=srcadr)
+ new_peers.append(new_peer)
+ return new_peers
+
+ def get_peer_ids(self, res):
+ """
+ Unpack the NTP Control Message header
+ Get data length from header
+ Get list of association ids returned in the readstat response
+ """
+
+ try:
+ count = struct.unpack(HEADER_FORMAT, res[:HEADER_LEN])[6]
+ except struct.error as error:
+ self.error('error unpacking header: {0}'.format(error))
+ return None
+ if not count:
+ self.error('empty data field in NTP control packet')
+ return None
+
+ data_end = HEADER_LEN + count
+ data = res[HEADER_LEN:data_end]
+ data_format = ''.join(['!', 'H' * int(count / 2)])
+ try:
+ peer_ids = list(struct.unpack(data_format, data))[::2]
+ except struct.error as error:
+ self.error('error unpacking data: {0}'.format(error))
+ return None
+ return peer_ids
diff --git a/python.d/portcheck.chart.py b/python.d/portcheck.chart.py
new file mode 100644
index 000000000..0a312210d
--- /dev/null
+++ b/python.d/portcheck.chart.py
@@ -0,0 +1,159 @@
+# -*- coding: utf-8 -*-
+# Description: simple port check netdata python.d module
+# Original Author: ccremer (github.com/ccremer)
+
+import socket
+
+try:
+ from time import monotonic as time
+except ImportError:
+ from time import time
+
+from bases.FrameworkServices.SimpleService import SimpleService
+
+# default module values (can be overridden per job in `config`)
+priority = 60000
+retries = 60
+
+PORT_LATENCY = 'connect'
+
+PORT_SUCCESS = 'success'
+PORT_TIMEOUT = 'timeout'
+PORT_FAILED = 'no_connection'
+
+ORDER = ['latency', 'status']
+
+CHARTS = {
+ 'latency': {
+ 'options': [None, 'TCP connect latency', 'ms', 'latency', 'portcheck.latency', 'line'],
+ 'lines': [
+ [PORT_LATENCY, 'connect', 'absolute', 100, 1000]
+ ]
+ },
+ 'status': {
+ 'options': [None, 'Portcheck status', 'boolean', 'status', 'portcheck.status', 'line'],
+ 'lines': [
+ [PORT_SUCCESS, 'success', 'absolute'],
+ [PORT_TIMEOUT, 'timeout', 'absolute'],
+ [PORT_FAILED, 'no connection', 'absolute']
+ ]}
+}
+
+
+# Not deriving from SocketService, too much is different
+class Service(SimpleService):
+ def __init__(self, configuration=None, name=None):
+ SimpleService.__init__(self, configuration=configuration, name=name)
+ self.order = ORDER
+ self.definitions = CHARTS
+ self.host = self.configuration.get('host')
+ self.port = self.configuration.get('port')
+ self.timeout = self.configuration.get('timeout', 1)
+
+ def check(self):
+ """
+ Parse configuration, check if configuration is available, and dynamically create chart lines data
+ :return: boolean
+ """
+ if self.host is None or self.port is None:
+ self.error("Host or port missing")
+ return False
+ if not isinstance(self.port, int):
+ self.error('"port" is not an integer. Specify a numerical value, not service name.')
+ return False
+
+ self.debug("Enabled portcheck: {host}:{port}, update every {update}s, timeout: {timeout}s".format(
+ host=self.host, port=self.port, update=self.update_every, timeout=self.timeout
+ ))
+ # We will accept any (valid-ish) configuration, even if initial connection fails (a service might be down from
+ # the beginning)
+ return True
+
+ def _get_data(self):
+ """
+ Get data from socket
+ :return: dict
+ """
+ data = dict()
+ data[PORT_SUCCESS] = 0
+ data[PORT_TIMEOUT] = 0
+ data[PORT_FAILED] = 0
+
+ success = False
+ try:
+ for socket_config in socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM):
+ # use first working socket
+ sock = self._create_socket(socket_config)
+ if sock is not None:
+ self._connect2socket(data, socket_config, sock)
+ self._disconnect(sock)
+ success = True
+ break
+ except socket.gaierror as error:
+ self.debug('Failed to connect to "{host}:{port}", error: {error}'.format(
+ host=self.host, port=self.port, error=error
+ ))
+
+ # We could not connect
+ if not success:
+ data[PORT_FAILED] = 1
+
+ return data
+
+ def _create_socket(self, socket_config):
+ af, sock_type, proto, canon_name, sa = socket_config
+ try:
+ self.debug('Creating socket to "{address}", port {port}'.format(address=sa[0], port=sa[1]))
+ sock = socket.socket(af, sock_type, proto)
+ sock.settimeout(self.timeout)
+ return sock
+ except socket.error as error:
+ self.debug('Failed to create socket "{address}", port {port}, error: {error}'.format(
+ address=sa[0], port=sa[1], error=error
+ ))
+ return None
+
+ def _connect2socket(self, data, socket_config, sock):
+ """
+ Connect to a socket, passing the result of getaddrinfo()
+ :return: dict
+ """
+
+ af, sock_type, proto, canon_name, sa = socket_config
+ port = str(sa[1])
+ try:
+ self.debug('Connecting socket to "{address}", port {port}'.format(address=sa[0], port=port))
+ start = time()
+ sock.connect(sa)
+ diff = time() - start
+ self.debug('Connected to "{address}", port {port}, latency {latency}'.format(
+ address=sa[0], port=port, latency=diff
+ ))
+ # we will set it at least 0.1 ms. 0.0 would mean failed connection (handy for 3rd-party-APIs)
+ data[PORT_LATENCY] = max(round(diff * 10000), 0)
+ data[PORT_SUCCESS] = 1
+
+ except socket.timeout as error:
+ self.debug('Socket timed out on "{address}", port {port}, error: {error}'.format(
+ address=sa[0], port=port, error=error
+ ))
+ data[PORT_TIMEOUT] = 1
+
+ except socket.error as error:
+ self.debug('Failed to connect to "{address}", port {port}, error: {error}'.format(
+ address=sa[0], port=port, error=error
+ ))
+ data[PORT_FAILED] = 1
+
+ def _disconnect(self, sock):
+ """
+ Close socket connection
+ :return:
+ """
+ if sock is not None:
+ try:
+ self.debug('Closing socket')
+ sock.shutdown(2) # 0 - read, 1 - write, 2 - all
+ sock.close()
+ except socket.error:
+ pass
diff --git a/python.d/postgres.chart.py b/python.d/postgres.chart.py
index ef69a9c77..0522b1938 100644
--- a/python.d/postgres.chart.py
+++ b/python.d/postgres.chart.py
@@ -32,6 +32,8 @@ METRICS = dict(
'tup_updated',
'tup_deleted',
'conflicts',
+ 'temp_files',
+ 'temp_bytes',
'size'],
BACKENDS=['backends_active',
'backends_idle'],
@@ -39,11 +41,21 @@ METRICS = dict(
'index_size'],
TABLE_STATS=['table_size',
'table_count'],
+ WAL=['written_wal',
+ 'recycled_wal',
+ 'total_wal'],
+ WAL_WRITES=['wal_writes'],
ARCHIVE=['ready_count',
'done_count',
'file_count'],
- BGWRITER=['writer_scheduled',
- 'writer_requested'],
+ BGWRITER=['checkpoint_scheduled',
+ 'checkpoint_requested',
+ 'buffers_checkpoint',
+ 'buffers_clean',
+ 'maxwritten_clean',
+ 'buffers_backend',
+ 'buffers_alloc',
+ 'buffers_backend_fsync'],
LOCKS=['ExclusiveLock',
'RowShareLock',
'SIReadLock',
@@ -52,17 +64,44 @@ METRICS = dict(
'AccessShareLock',
'ShareRowExclusiveLock',
'ShareLock',
- 'RowExclusiveLock']
+ 'RowExclusiveLock'],
+ AUTOVACUUM=['analyze',
+ 'vacuum_analyze',
+ 'vacuum',
+ 'vacuum_freeze',
+ 'brin_summarize'],
+ STANDBY_DELTA=['sent_delta',
+ 'write_delta',
+ 'flush_delta',
+ 'replay_delta'],
+ REPSLOT_FILES=['replslot_wal_keep',
+ 'replslot_files']
+
)
QUERIES = dict(
+ WAL="""
+SELECT
+ count(*) as total_wal,
+ count(*) FILTER (WHERE type = 'recycled') AS recycled_wal,
+ count(*) FILTER (WHERE type = 'written') AS written_wal
+FROM
+ (SELECT wal.name,
+ pg_{0}file_name(CASE pg_is_in_recovery() WHEN true THEN NULL ELSE pg_current_{0}_{1}() END ),
+ CASE WHEN wal.name > pg_{0}file_name(CASE pg_is_in_recovery() WHEN true THEN NULL ELSE pg_current_{0}_{1}() END ) THEN 'recycled'
+ ELSE 'written'
+ END AS type
+ FROM pg_catalog.pg_ls_dir('pg_{0}') AS wal(name)
+ WHERE name ~ '^[0-9A-F]{{24}}$'
+ ORDER BY (pg_stat_file('pg_{0}/'||name)).modification, wal.name DESC) sub;
+""",
ARCHIVE="""
SELECT
CAST(COUNT(*) AS INT) AS file_count,
CAST(COALESCE(SUM(CAST(archive_file ~ $r$\.ready$$r$ as INT)), 0) AS INT) AS ready_count,
CAST(COALESCE(SUM(CAST(archive_file ~ $r$\.done$$r$ AS INT)), 0) AS INT) AS done_count
FROM
- pg_catalog.pg_ls_dir('{0}/archive_status') AS archive_files (archive_file);
+ pg_catalog.pg_ls_dir('pg_{0}/archive_status') AS archive_files (archive_file);
""",
BACKENDS="""
SELECT
@@ -86,28 +125,37 @@ WHERE relkind = 'i';""",
DATABASE="""
SELECT
datname AS database_name,
- sum(numbackends) AS connections,
- sum(xact_commit) AS xact_commit,
- sum(xact_rollback) AS xact_rollback,
- sum(blks_read) AS blks_read,
- sum(blks_hit) AS blks_hit,
- sum(tup_returned) AS tup_returned,
- sum(tup_fetched) AS tup_fetched,
- sum(tup_inserted) AS tup_inserted,
- sum(tup_updated) AS tup_updated,
- sum(tup_deleted) AS tup_deleted,
- sum(conflicts) AS conflicts,
- pg_database_size(datname) AS size
+ numbackends AS connections,
+ xact_commit AS xact_commit,
+ xact_rollback AS xact_rollback,
+ blks_read AS blks_read,
+ blks_hit AS blks_hit,
+ tup_returned AS tup_returned,
+ tup_fetched AS tup_fetched,
+ tup_inserted AS tup_inserted,
+ tup_updated AS tup_updated,
+ tup_deleted AS tup_deleted,
+ conflicts AS conflicts,
+ pg_database_size(datname) AS size,
+ temp_files AS temp_files,
+ temp_bytes AS temp_bytes
FROM pg_stat_database
WHERE datname IN %(databases)s
-GROUP BY datname;
+;
""",
BGWRITER="""
SELECT
- checkpoints_timed AS writer_scheduled,
- checkpoints_req AS writer_requested
-FROM pg_stat_bgwriter;""",
- LOCKS="""
+ checkpoints_timed AS checkpoint_scheduled,
+ checkpoints_req AS checkpoint_requested,
+ buffers_checkpoint * current_setting('block_size')::numeric buffers_checkpoint,
+ buffers_clean * current_setting('block_size')::numeric buffers_clean,
+ maxwritten_clean,
+ buffers_backend * current_setting('block_size')::numeric buffers_backend,
+ buffers_alloc * current_setting('block_size')::numeric buffers_alloc,
+ buffers_backend_fsync
+FROM pg_stat_bgwriter;
+""",
+ LOCKS="""
SELECT
pg_database.datname as database_name,
mode,
@@ -123,12 +171,69 @@ FROM pg_stat_database
WHERE has_database_privilege((SELECT current_user), datname, 'connect')
AND NOT datname ~* '^template\d+';
""",
+ FIND_STANDBY="""
+SELECT application_name
+FROM pg_stat_replication
+WHERE application_name IS NOT NULL
+GROUP BY application_name;
+""",
+ FIND_REPLICATION_SLOT="""
+SELECT slot_name
+FROM pg_replication_slots;
+""",
+ STANDBY_DELTA="""
+SELECT application_name,
+ pg_{0}_{1}_diff(CASE pg_is_in_recovery() WHEN true THEN pg_last_{0}_receive_{1}() ELSE pg_current_{0}_{1}() END , sent_{1}) AS sent_delta,
+ pg_{0}_{1}_diff(CASE pg_is_in_recovery() WHEN true THEN pg_last_{0}_receive_{1}() ELSE pg_current_{0}_{1}() END , write_{1}) AS write_delta,
+ pg_{0}_{1}_diff(CASE pg_is_in_recovery() WHEN true THEN pg_last_{0}_receive_{1}() ELSE pg_current_{0}_{1}() END , flush_{1}) AS flush_delta,
+ pg_{0}_{1}_diff(CASE pg_is_in_recovery() WHEN true THEN pg_last_{0}_receive_{1}() ELSE pg_current_{0}_{1}() END , replay_{1}) AS replay_delta
+FROM pg_stat_replication
+WHERE application_name IS NOT NULL;
+""",
+ REPSLOT_FILES="""
+WITH wal_size AS (
+ SELECT current_setting('wal_block_size')::INT * setting::INT AS val
+ FROM pg_settings
+ WHERE name = 'wal_segment_size'
+)
+SELECT slot_name, slot_type, replslot_wal_keep, count(slot_file) AS replslot_files
+FROM (
+ SELECT slot.slot_name, CASE WHEN slot_file <> 'state' THEN 1 END AS slot_file , slot_type,
+ COALESCE (floor((pg_wal_lsn_diff (pg_current_wal_lsn (),
+ slot.restart_lsn) - (pg_walfile_name_offset (restart_lsn)).file_offset) / (s.val)),
+ 0) AS replslot_wal_keep
+ FROM pg_replication_slots slot
+ LEFT JOIN (
+ SELECT slot2.slot_name,
+ pg_ls_dir('pg_replslot/' || slot2.slot_name) AS slot_file
+ FROM pg_replication_slots slot2
+ ) files (slot_name, slot_file)
+ ON slot.slot_name = files.slot_name
+ CROSS JOIN wal_size s) AS d
+GROUP BY slot_name, slot_type, replslot_wal_keep;
+""",
IF_SUPERUSER="""
SELECT current_setting('is_superuser') = 'on' AS is_superuser;
- """,
+""",
DETECT_SERVER_VERSION="""
SHOW server_version_num;
- """
+""",
+ AUTOVACUUM="""
+SELECT
+ count(*) FILTER (WHERE query LIKE 'autovacuum: ANALYZE%%') AS analyze,
+ count(*) FILTER (WHERE query LIKE 'autovacuum: VACUUM ANALYZE%%') AS vacuum_analyze,
+ count(*) FILTER (WHERE query LIKE 'autovacuum: VACUUM%%'
+ AND query NOT LIKE 'autovacuum: VACUUM ANALYZE%%'
+ AND query NOT LIKE '%%to prevent wraparound%%') AS vacuum,
+ count(*) FILTER (WHERE query LIKE '%%to prevent wraparound%%') AS vacuum_freeze,
+ count(*) FILTER (WHERE query LIKE 'autovacuum: BRIN summarize%%') AS brin_summarize
+FROM pg_stat_activity
+WHERE query NOT LIKE '%%pg_stat_activity%%';
+""",
+ DIFF_LSN="""
+SELECT pg_{0}_{1}_diff(CASE pg_is_in_recovery() WHEN true THEN pg_last_{0}_receive_{1}() ELSE pg_current_{0}_{1}() END, '0/0') as wal_writes ;
+"""
+
)
@@ -138,8 +243,11 @@ QUERY_STATS = {
QUERIES['LOCKS']: METRICS['LOCKS']
}
-ORDER = ['db_stat_transactions', 'db_stat_tuple_read', 'db_stat_tuple_returned', 'db_stat_tuple_write', 'database_size',
- 'backend_process', 'index_count', 'index_size', 'table_count', 'table_size', 'wal', 'background_writer']
+ORDER = ['db_stat_temp_files', 'db_stat_temp_bytes', 'db_stat_blks', 'db_stat_tuple_returned', 'db_stat_tuple_write',
+ 'db_stat_transactions','db_stat_connections', 'database_size', 'backend_process', 'index_count', 'index_size',
+ 'table_count', 'table_size', 'wal', 'wal_writes', 'archive_wal', 'checkpointer', 'stat_bgwriter_alloc', 'stat_bgwriter_checkpoint',
+ 'stat_bgwriter_backend', 'stat_bgwriter_backend_fsync' , 'stat_bgwriter_bgwriter', 'stat_bgwriter_maxwritten',
+ 'replication_slot', 'standby_delta', 'autovacuum']
CHARTS = {
'db_stat_transactions': {
@@ -155,8 +263,8 @@ CHARTS = {
'lines': [
['connections', 'connections', 'absolute']
]},
- 'db_stat_tuple_read': {
- 'options': [None, 'Tuple reads from db', 'reads/s', 'db statistics', 'postgres.db_stat_tuple_read', 'line'],
+ 'db_stat_blks': {
+ 'options': [None, 'Disk blocks reads from db', 'reads/s', 'db statistics', 'postgres.db_stat_blks', 'line'],
'lines': [
['blks_read', 'disk', 'incremental'],
['blks_hit', 'cache', 'incremental']
@@ -176,6 +284,16 @@ CHARTS = {
['tup_deleted', 'deleted', 'incremental'],
['conflicts', 'conflicts', 'incremental']
]},
+ 'db_stat_temp_bytes': {
+ 'options': [None, 'Temp files written to disk', 'KB/s', 'db statistics', 'postgres.db_stat_temp_bytes', 'line'],
+ 'lines': [
+ ['temp_bytes', 'size', 'incremental', 1, 1024]
+ ]},
+ 'db_stat_temp_files': {
+ 'options': [None, 'Temp files written to disk', 'files', 'db statistics', 'postgres.db_stat_temp_files', 'line'],
+ 'lines': [
+ ['temp_files', 'files', 'incremental']
+ ]},
'database_size': {
'options': [None, 'Database size', 'MB', 'database size', 'postgres.db_size', 'stacked'],
'lines': [
@@ -208,17 +326,82 @@ CHARTS = {
['table_size', 'size', 'absolute', 1, 1024 * 1024]
]},
'wal': {
- 'options': [None, 'Write-Ahead Logging Statistics', 'files/s', 'write ahead log', 'postgres.wal', 'line'],
+ 'options': [None, 'Write-Ahead Logs', 'files', 'wal', 'postgres.wal', 'line'],
+ 'lines': [
+ ['written_wal', 'written', 'absolute'],
+ ['recycled_wal', 'recycled', 'absolute'],
+ ['total_wal', 'total', 'absolute']
+ ]},
+ 'wal_writes': {
+ 'options': [None, 'Write-Ahead Logs', 'kilobytes/s', 'wal_writes', 'postgres.wal_writes', 'line'],
+ 'lines': [
+ ['wal_writes', 'writes', 'incremental', 1, 1024]
+ ]},
+ 'archive_wal': {
+ 'options': [None, 'Archive Write-Ahead Logs', 'files/s', 'archive wal', 'postgres.archive_wal', 'line'],
'lines': [
['file_count', 'total', 'incremental'],
['ready_count', 'ready', 'incremental'],
['done_count', 'done', 'incremental']
]},
- 'background_writer': {
- 'options': [None, 'Checkpoints', 'writes/s', 'background writer', 'postgres.background_writer', 'line'],
+ 'checkpointer': {
+ 'options': [None, 'Checkpoints', 'writes', 'checkpointer', 'postgres.checkpointer', 'line'],
+ 'lines': [
+ ['checkpoint_scheduled', 'scheduled', 'incremental'],
+ ['checkpoint_requested', 'requested', 'incremental']
+ ]},
+ 'stat_bgwriter_alloc': {
+ 'options': [None, 'Buffers allocated', 'kilobytes/s', 'bgwriter', 'postgres.stat_bgwriter_alloc', 'line'],
+ 'lines': [
+ ['buffers_alloc', 'alloc', 'incremental', 1, 1024]
+ ]},
+ 'stat_bgwriter_checkpoint': {
+ 'options': [None, 'Buffers written during checkpoints', 'kilobytes/s', 'bgwriter', 'postgres.stat_bgwriter_checkpoint', 'line'],
+ 'lines': [
+ ['buffers_checkpoint', 'checkpoint', 'incremental', 1, 1024]
+ ]},
+ 'stat_bgwriter_backend': {
+ 'options': [None, 'Buffers written directly by a backend', 'kilobytes/s', 'bgwriter', 'postgres.stat_bgwriter_backend', 'line'],
+ 'lines': [
+ ['buffers_backend', 'backend', 'incremental', 1, 1024]
+ ]},
+ 'stat_bgwriter_backend_fsync': {
+ 'options': [None, 'Fsync by backend', 'times', 'bgwriter', 'postgres.stat_bgwriter_backend_fsync', 'line'],
+ 'lines': [
+ ['buffers_backend_fsync', 'backend fsync', 'incremental']
+ ]},
+ 'stat_bgwriter_bgwriter': {
+ 'options': [None, 'Buffers written by the background writer', 'kilobytes/s', 'bgwriter', 'postgres.bgwriter_bgwriter', 'line'],
+ 'lines': [
+ ['buffers_clean', 'clean', 'incremental', 1, 1024]
+ ]},
+ 'stat_bgwriter_maxwritten': {
+ 'options': [None, 'Too many buffers written', 'times', 'bgwriter', 'postgres.stat_bgwriter_maxwritten', 'line'],
+ 'lines': [
+ ['maxwritten_clean', 'maxwritten', 'incremental']
+ ]},
+ 'autovacuum': {
+ 'options': [None, 'Autovacuum workers', 'workers', 'autovacuum', 'postgres.autovacuum', 'line'],
'lines': [
- ['writer_scheduled', 'scheduled', 'incremental'],
- ['writer_requested', 'requested', 'incremental']
+ ['analyze', 'analyze', 'absolute'],
+ ['vacuum', 'vacuum', 'absolute'],
+ ['vacuum_analyze', 'vacuum analyze', 'absolute'],
+ ['vacuum_freeze', 'vacuum freeze', 'absolute'],
+ ['brin_summarize', 'brin summarize', 'absolute']
+ ]},
+ 'standby_delta': {
+ 'options': [None, 'Standby delta', 'kilobytes', 'replication delta', 'postgres.standby_delta', 'line'],
+ 'lines': [
+ ['sent_delta', 'sent delta', 'absolute', 1, 1024],
+ ['write_delta', 'write delta', 'absolute', 1, 1024],
+ ['flush_delta', 'flush delta', 'absolute', 1, 1024],
+ ['replay_delta', 'replay delta', 'absolute', 1, 1024]
+ ]},
+ 'replication_slot': {
+ 'options': [None, 'Replication slot files', 'files', 'replication slot', 'postgres.replication_slot', 'line'],
+ 'lines': [
+ ['replslot_wal_keep', 'wal keeped', 'absolute'],
+ ['replslot_files', 'pg_replslot files', 'absolute']
]}
}
@@ -237,6 +420,8 @@ class Service(SimpleService):
self.data = dict()
self.locks_zeroed = dict()
self.databases = list()
+ self.secondaries = list()
+ self.replication_slots = list()
self.queries = QUERY_STATS.copy()
def _connect(self):
@@ -270,7 +455,10 @@ class Service(SimpleService):
cursor = self.connection.cursor()
self.databases = discover_databases_(cursor, QUERIES['FIND_DATABASES'])
is_superuser = check_if_superuser_(cursor, QUERIES['IF_SUPERUSER'])
+ self.secondaries = discover_secondaries_(cursor, QUERIES['FIND_STANDBY'])
self.server_version = detect_server_version(cursor, QUERIES['DETECT_SERVER_VERSION'])
+ if self.server_version >= 94000:
+ self.replication_slots = discover_replication_slots_(cursor, QUERIES['FIND_REPLICATION_SLOT'])
cursor.close()
if self.database_poll and isinstance(self.database_poll, str):
@@ -286,29 +474,51 @@ class Service(SimpleService):
return False
def add_additional_queries_(self, is_superuser):
+
+ if self.server_version >= 100000:
+ wal = 'wal'
+ lsn = 'lsn'
+ else:
+ wal = 'xlog'
+ lsn = 'location'
+ self.queries[QUERIES['BGWRITER']] = METRICS['BGWRITER']
+ self.queries[QUERIES['DIFF_LSN'].format(wal,lsn)] = METRICS['WAL_WRITES']
+ self.queries[QUERIES['STANDBY_DELTA'].format(wal,lsn)] = METRICS['STANDBY_DELTA']
+
if self.index_stats:
self.queries[QUERIES['INDEX_STATS']] = METRICS['INDEX_STATS']
if self.table_stats:
self.queries[QUERIES['TABLE_STATS']] = METRICS['TABLE_STATS']
if is_superuser:
- self.queries[QUERIES['BGWRITER']] = METRICS['BGWRITER']
+ self.queries[QUERIES['ARCHIVE'].format(wal)] = METRICS['ARCHIVE']
+ if self.server_version >= 90400:
+ self.queries[QUERIES['WAL'].format(wal,lsn)] = METRICS['WAL']
if self.server_version >= 100000:
- wal_dir_name = 'pg_wal'
- else:
- wal_dir_name = 'pg_xlog'
- self.queries[QUERIES['ARCHIVE'].format(wal_dir_name)] = METRICS['ARCHIVE']
+ self.queries[QUERIES['REPSLOT_FILES']] = METRICS['REPSLOT_FILES']
+ if self.server_version >= 90400:
+ self.queries[QUERIES['AUTOVACUUM']] = METRICS['AUTOVACUUM']
def create_dynamic_charts_(self):
for database_name in self.databases[::-1]:
self.definitions['database_size']['lines'].append([database_name + '_size',
database_name, 'absolute', 1, 1024 * 1024])
- for chart_name in [name for name in CHARTS if name.startswith('db_stat')]:
+ for chart_name in [name for name in self.order if name.startswith('db_stat')]:
add_database_stat_chart_(order=self.order, definitions=self.definitions,
name=chart_name, database_name=database_name)
add_database_lock_chart_(order=self.order, definitions=self.definitions, database_name=database_name)
+ for application_name in self.secondaries[::-1]:
+ add_replication_delta_chart_(order=self.order, definitions=self.definitions,
+ name='standby_delta', application_name=application_name)
+
+ for slot_name in self.replication_slots[::-1]:
+ add_replication_slot_chart_(order=self.order, definitions=self.definitions,
+ name='replication_slot', slot_name=slot_name)
+
+
+
def _get_data(self):
result, error = self._connect()
if result:
@@ -332,7 +542,14 @@ class Service(SimpleService):
cursor.execute(query, dict(databases=tuple(self.databases)))
for row in cursor:
for metric in metrics:
- dimension_id = '_'.join([row['database_name'], metric]) if 'database_name' in row else metric
+ if 'database_name' in row:
+ dimension_id = '_'.join([row['database_name'], metric])
+ elif 'application_name' in row:
+ dimension_id = '_'.join([row['application_name'], metric])
+ elif 'slot_name' in row:
+ dimension_id = '_'.join([row['slot_name'], metric])
+ else:
+ dimension_id = metric
if metric in row:
self.data[dimension_id] = int(row[metric])
elif 'locks_count' in row:
@@ -347,6 +564,21 @@ def discover_databases_(cursor, query):
result.append(db)
return result
+def discover_secondaries_(cursor, query):
+ cursor.execute(query)
+ result = list()
+ for sc in [standby[0] for standby in cursor]:
+ if sc not in result:
+ result.append(sc)
+ return result
+
+def discover_replication_slots_(cursor, query):
+ cursor.execute(query)
+ result = list()
+ for slot in [replication_slot[0] for replication_slot in cursor]:
+ if slot not in result:
+ result.append(slot)
+ return result
def check_if_superuser_(cursor, query):
cursor.execute(query)
@@ -398,3 +630,37 @@ def add_database_stat_chart_(order, definitions, name, database_name):
definitions[chart_name] = {
'options': [name, title + ': ' + database_name, units, 'db ' + database_name, context, chart_type],
'lines': create_lines(database_name, chart_template['lines'])}
+
+def add_replication_delta_chart_(order, definitions, name, application_name):
+ def create_lines(standby, lines):
+ result = list()
+ for line in lines:
+ new_line = ['_'.join([standby, line[0]])] + line[1:]
+ result.append(new_line)
+ return result
+
+ chart_template = CHARTS[name]
+ chart_name = '_'.join([application_name, name])
+ position = order.index('database_size')
+ order.insert(position, chart_name)
+ name, title, units, family, context, chart_type = chart_template['options']
+ definitions[chart_name] = {
+ 'options': [name, title + ': ' + application_name, units, 'replication delta', context, chart_type],
+ 'lines': create_lines(application_name, chart_template['lines'])}
+
+def add_replication_slot_chart_(order, definitions, name, slot_name):
+ def create_lines(slot, lines):
+ result = list()
+ for line in lines:
+ new_line = ['_'.join([slot, line[0]])] + line[1:]
+ result.append(new_line)
+ return result
+
+ chart_template = CHARTS[name]
+ chart_name = '_'.join([slot_name, name])
+ position = order.index('database_size')
+ order.insert(position, chart_name)
+ name, title, units, family, context, chart_type = chart_template['options']
+ definitions[chart_name] = {
+ 'options': [name, title + ': ' + slot_name, units, 'replication slot files', context, chart_type],
+ 'lines': create_lines(slot_name, chart_template['lines'])}
diff --git a/python.d/python_modules/bases/FrameworkServices/ExecutableService.py b/python.d/python_modules/bases/FrameworkServices/ExecutableService.py
index b6d7871fa..a71f2bfd2 100644
--- a/python.d/python_modules/bases/FrameworkServices/ExecutableService.py
+++ b/python.d/python_modules/bases/FrameworkServices/ExecutableService.py
@@ -30,7 +30,10 @@ class ExecutableService(SimpleService):
data = list()
std = p.stderr if stderr else p.stdout
for line in std:
- data.append(line.decode())
+ try:
+ data.append(line.decode('utf-8'))
+ except TypeError:
+ continue
return data or None
diff --git a/python.d/python_modules/bases/FrameworkServices/SimpleService.py b/python.d/python_modules/bases/FrameworkServices/SimpleService.py
index 14c839101..177332c1f 100644
--- a/python.d/python_modules/bases/FrameworkServices/SimpleService.py
+++ b/python.d/python_modules/bases/FrameworkServices/SimpleService.py
@@ -33,6 +33,7 @@ class RuntimeCounters:
self.RETRIES = 0
self.RETRIES_MAX = configuration.pop('retries')
self.PENALTY = 0
+ self.RUNS = 1
def is_sleep_time(self):
return self.START_RUN < self.NEXT_RUN
@@ -82,6 +83,10 @@ class SimpleService(Thread, PythonDLimitedLogger, OldVersionCompatibility, objec
return self.fake_name or self.name
@property
+ def runs_counter(self):
+ return self._runtime_counters.RUNS
+
+ @property
def update_every(self):
return self._runtime_counters.FREQ
@@ -178,6 +183,8 @@ class SimpleService(Thread, PythonDLimitedLogger, OldVersionCompatibility, objec
self.error('update() unhandled exception: {error}'.format(error=error))
updated = False
+ job.RUNS += 1
+
if not updated:
if not self.manage_retries():
return
@@ -209,7 +216,10 @@ class SimpleService(Thread, PythonDLimitedLogger, OldVersionCompatibility, objec
for chart in self.charts:
if chart.flags.obsoleted:
- continue
+ if chart.can_be_updated(data):
+ chart.refresh()
+ else:
+ continue
elif self.charts.cleanup and chart.penalty >= self.charts.cleanup:
chart.obsolete()
self.error("chart '{0}' was suppressed due to non updating".format(chart.name))
diff --git a/python.d/python_modules/bases/FrameworkServices/SocketService.py b/python.d/python_modules/bases/FrameworkServices/SocketService.py
index 90631df16..8d27ae660 100644
--- a/python.d/python_modules/bases/FrameworkServices/SocketService.py
+++ b/python.d/python_modules/bases/FrameworkServices/SocketService.py
@@ -14,6 +14,7 @@ class SocketService(SimpleService):
self.host = 'localhost'
self.port = None
self.unix_socket = None
+ self.dgram_socket = False
self.request = ''
self.__socket_config = None
self.__empty_request = "".encode()
@@ -115,7 +116,11 @@ class SocketService(SimpleService):
if self.__socket_config is not None:
self._connect2socket()
else:
- for res in socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM):
+ if self.dgram_socket:
+ sock_type = socket.SOCK_DGRAM
+ else:
+ sock_type = socket.SOCK_STREAM
+ for res in socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, sock_type):
if self._connect2socket(res):
break
@@ -158,12 +163,15 @@ class SocketService(SimpleService):
return False
return True
- def _receive(self):
+ def _receive(self, raw=False):
"""
Receive data from socket
- :return: str
+ :param raw: set `True` to return bytes
+ :type raw: bool
+ :return: decoded str or raw bytes
+ :rtype: str/bytes
"""
- data = ""
+ data = "" if not raw else b""
while True:
self.debug('receiving response')
try:
@@ -174,7 +182,7 @@ class SocketService(SimpleService):
break
if buf is None or len(buf) == 0: # handle server disconnect
- if data == "":
+ if data == "" or data == b"":
self._socket_error('unexpectedly disconnected')
else:
self.debug('server closed the connection')
@@ -182,17 +190,20 @@ class SocketService(SimpleService):
break
self.debug('received data')
- data += buf.decode('utf-8', 'ignore')
+ data += buf.decode('utf-8', 'ignore') if not raw else buf
if self._check_raw_data(data):
break
self.debug('final response: {0}'.format(data))
return data
- def _get_raw_data(self):
+ def _get_raw_data(self, raw=False):
"""
Get raw data with low-level "socket" module.
- :return: str
+ :param raw: set `True` to return bytes
+ :type raw: bool
+ :return: decoded data (str) or raw data (bytes)
+ :rtype: str/bytes
"""
if self._sock is None:
self._connect()
@@ -203,7 +214,7 @@ class SocketService(SimpleService):
if not self._send():
return None
- data = self._receive()
+ data = self._receive(raw)
if not self._keep_alive:
self._disconnect()
diff --git a/python.d/python_modules/bases/FrameworkServices/UrlService.py b/python.d/python_modules/bases/FrameworkServices/UrlService.py
index 0941ab168..bb340ba3b 100644
--- a/python.d/python_modules/bases/FrameworkServices/UrlService.py
+++ b/python.d/python_modules/bases/FrameworkServices/UrlService.py
@@ -75,20 +75,31 @@ class UrlService(SimpleService):
:return: str
"""
try:
- url = url or self.url
- manager = manager or self._manager
- response = manager.request(method='GET',
- url=url,
- timeout=self.request_timeout,
- retries=1,
- headers=manager.headers)
+ status, data = self._get_raw_data_with_status(url, manager)
except (urllib3.exceptions.HTTPError, TypeError, AttributeError) as error:
self.error('Url: {url}. Error: {error}'.format(url=url, error=error))
return None
- if response.status == 200:
- return response.data.decode()
- self.debug('Url: {url}. Http response status code: {code}'.format(url=url, code=response.status))
- return None
+
+ if status == 200:
+ return data.decode()
+ else:
+ self.debug('Url: {url}. Http response status code: {code}'.format(url=url, code=status))
+ return None
+
+ def _get_raw_data_with_status(self, url=None, manager=None, retries=1, redirect=True):
+ """
+ Get status and response body content from http request. Does not catch exceptions
+ :return: int, str
+ """
+ url = url or self.url
+ manager = manager or self._manager
+ response = manager.request(method='GET',
+ url=url,
+ timeout=self.request_timeout,
+ retries=retries,
+ headers=manager.headers,
+ redirect=redirect)
+ return response.status, response.data
def check(self):
"""
diff --git a/python.d/python_modules/bases/charts.py b/python.d/python_modules/bases/charts.py
index 1e9348e59..5394fbf64 100644
--- a/python.d/python_modules/bases/charts.py
+++ b/python.d/python_modules/bases/charts.py
@@ -217,6 +217,12 @@ class Chart:
safe_print(chart + dimensions + variables)
+ def can_be_updated(self, data):
+ for dim in self.dimensions:
+ if dim.get_value(data) is not None:
+ return True
+ return False
+
def update(self, data, interval):
updated_dimensions, updated_variables = str(), str()
diff --git a/python.d/python_modules/pyyaml2/__init__.py b/python.d/python_modules/pyyaml2/__init__.py
new file mode 100644
index 000000000..76e19e13f
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/__init__.py
@@ -0,0 +1,315 @@
+
+from error import *
+
+from tokens import *
+from events import *
+from nodes import *
+
+from loader import *
+from dumper import *
+
+__version__ = '3.11'
+
+try:
+ from cyaml import *
+ __with_libyaml__ = True
+except ImportError:
+ __with_libyaml__ = False
+
+def scan(stream, Loader=Loader):
+ """
+ Scan a YAML stream and produce scanning tokens.
+ """
+ loader = Loader(stream)
+ try:
+ while loader.check_token():
+ yield loader.get_token()
+ finally:
+ loader.dispose()
+
+def parse(stream, Loader=Loader):
+ """
+ Parse a YAML stream and produce parsing events.
+ """
+ loader = Loader(stream)
+ try:
+ while loader.check_event():
+ yield loader.get_event()
+ finally:
+ loader.dispose()
+
+def compose(stream, Loader=Loader):
+ """
+ Parse the first YAML document in a stream
+ and produce the corresponding representation tree.
+ """
+ loader = Loader(stream)
+ try:
+ return loader.get_single_node()
+ finally:
+ loader.dispose()
+
+def compose_all(stream, Loader=Loader):
+ """
+ Parse all YAML documents in a stream
+ and produce corresponding representation trees.
+ """
+ loader = Loader(stream)
+ try:
+ while loader.check_node():
+ yield loader.get_node()
+ finally:
+ loader.dispose()
+
+def load(stream, Loader=Loader):
+ """
+ Parse the first YAML document in a stream
+ and produce the corresponding Python object.
+ """
+ loader = Loader(stream)
+ try:
+ return loader.get_single_data()
+ finally:
+ loader.dispose()
+
+def load_all(stream, Loader=Loader):
+ """
+ Parse all YAML documents in a stream
+ and produce corresponding Python objects.
+ """
+ loader = Loader(stream)
+ try:
+ while loader.check_data():
+ yield loader.get_data()
+ finally:
+ loader.dispose()
+
+def safe_load(stream):
+ """
+ Parse the first YAML document in a stream
+ and produce the corresponding Python object.
+ Resolve only basic YAML tags.
+ """
+ return load(stream, SafeLoader)
+
+def safe_load_all(stream):
+ """
+ Parse all YAML documents in a stream
+ and produce corresponding Python objects.
+ Resolve only basic YAML tags.
+ """
+ return load_all(stream, SafeLoader)
+
+def emit(events, stream=None, Dumper=Dumper,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None):
+ """
+ Emit YAML parsing events into a stream.
+ If stream is None, return the produced string instead.
+ """
+ getvalue = None
+ if stream is None:
+ from StringIO import StringIO
+ stream = StringIO()
+ getvalue = stream.getvalue
+ dumper = Dumper(stream, canonical=canonical, indent=indent, width=width,
+ allow_unicode=allow_unicode, line_break=line_break)
+ try:
+ for event in events:
+ dumper.emit(event)
+ finally:
+ dumper.dispose()
+ if getvalue:
+ return getvalue()
+
+def serialize_all(nodes, stream=None, Dumper=Dumper,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None,
+ encoding='utf-8', explicit_start=None, explicit_end=None,
+ version=None, tags=None):
+ """
+ Serialize a sequence of representation trees into a YAML stream.
+ If stream is None, return the produced string instead.
+ """
+ getvalue = None
+ if stream is None:
+ if encoding is None:
+ from StringIO import StringIO
+ else:
+ from cStringIO import StringIO
+ stream = StringIO()
+ getvalue = stream.getvalue
+ dumper = Dumper(stream, canonical=canonical, indent=indent, width=width,
+ allow_unicode=allow_unicode, line_break=line_break,
+ encoding=encoding, version=version, tags=tags,
+ explicit_start=explicit_start, explicit_end=explicit_end)
+ try:
+ dumper.open()
+ for node in nodes:
+ dumper.serialize(node)
+ dumper.close()
+ finally:
+ dumper.dispose()
+ if getvalue:
+ return getvalue()
+
+def serialize(node, stream=None, Dumper=Dumper, **kwds):
+ """
+ Serialize a representation tree into a YAML stream.
+ If stream is None, return the produced string instead.
+ """
+ return serialize_all([node], stream, Dumper=Dumper, **kwds)
+
+def dump_all(documents, stream=None, Dumper=Dumper,
+ default_style=None, default_flow_style=None,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None,
+ encoding='utf-8', explicit_start=None, explicit_end=None,
+ version=None, tags=None):
+ """
+ Serialize a sequence of Python objects into a YAML stream.
+ If stream is None, return the produced string instead.
+ """
+ getvalue = None
+ if stream is None:
+ if encoding is None:
+ from StringIO import StringIO
+ else:
+ from cStringIO import StringIO
+ stream = StringIO()
+ getvalue = stream.getvalue
+ dumper = Dumper(stream, default_style=default_style,
+ default_flow_style=default_flow_style,
+ canonical=canonical, indent=indent, width=width,
+ allow_unicode=allow_unicode, line_break=line_break,
+ encoding=encoding, version=version, tags=tags,
+ explicit_start=explicit_start, explicit_end=explicit_end)
+ try:
+ dumper.open()
+ for data in documents:
+ dumper.represent(data)
+ dumper.close()
+ finally:
+ dumper.dispose()
+ if getvalue:
+ return getvalue()
+
+def dump(data, stream=None, Dumper=Dumper, **kwds):
+ """
+ Serialize a Python object into a YAML stream.
+ If stream is None, return the produced string instead.
+ """
+ return dump_all([data], stream, Dumper=Dumper, **kwds)
+
+def safe_dump_all(documents, stream=None, **kwds):
+ """
+ Serialize a sequence of Python objects into a YAML stream.
+ Produce only basic YAML tags.
+ If stream is None, return the produced string instead.
+ """
+ return dump_all(documents, stream, Dumper=SafeDumper, **kwds)
+
+def safe_dump(data, stream=None, **kwds):
+ """
+ Serialize a Python object into a YAML stream.
+ Produce only basic YAML tags.
+ If stream is None, return the produced string instead.
+ """
+ return dump_all([data], stream, Dumper=SafeDumper, **kwds)
+
+def add_implicit_resolver(tag, regexp, first=None,
+ Loader=Loader, Dumper=Dumper):
+ """
+ Add an implicit scalar detector.
+ If an implicit scalar value matches the given regexp,
+ the corresponding tag is assigned to the scalar.
+ first is a sequence of possible initial characters or None.
+ """
+ Loader.add_implicit_resolver(tag, regexp, first)
+ Dumper.add_implicit_resolver(tag, regexp, first)
+
+def add_path_resolver(tag, path, kind=None, Loader=Loader, Dumper=Dumper):
+ """
+ Add a path based resolver for the given tag.
+ A path is a list of keys that forms a path
+ to a node in the representation tree.
+ Keys can be string values, integers, or None.
+ """
+ Loader.add_path_resolver(tag, path, kind)
+ Dumper.add_path_resolver(tag, path, kind)
+
+def add_constructor(tag, constructor, Loader=Loader):
+ """
+ Add a constructor for the given tag.
+ Constructor is a function that accepts a Loader instance
+ and a node object and produces the corresponding Python object.
+ """
+ Loader.add_constructor(tag, constructor)
+
+def add_multi_constructor(tag_prefix, multi_constructor, Loader=Loader):
+ """
+ Add a multi-constructor for the given tag prefix.
+ Multi-constructor is called for a node if its tag starts with tag_prefix.
+ Multi-constructor accepts a Loader instance, a tag suffix,
+ and a node object and produces the corresponding Python object.
+ """
+ Loader.add_multi_constructor(tag_prefix, multi_constructor)
+
+def add_representer(data_type, representer, Dumper=Dumper):
+ """
+ Add a representer for the given type.
+ Representer is a function accepting a Dumper instance
+ and an instance of the given data type
+ and producing the corresponding representation node.
+ """
+ Dumper.add_representer(data_type, representer)
+
+def add_multi_representer(data_type, multi_representer, Dumper=Dumper):
+ """
+ Add a representer for the given type.
+ Multi-representer is a function accepting a Dumper instance
+ and an instance of the given data type or subtype
+ and producing the corresponding representation node.
+ """
+ Dumper.add_multi_representer(data_type, multi_representer)
+
+class YAMLObjectMetaclass(type):
+ """
+ The metaclass for YAMLObject.
+ """
+ def __init__(cls, name, bases, kwds):
+ super(YAMLObjectMetaclass, cls).__init__(name, bases, kwds)
+ if 'yaml_tag' in kwds and kwds['yaml_tag'] is not None:
+ cls.yaml_loader.add_constructor(cls.yaml_tag, cls.from_yaml)
+ cls.yaml_dumper.add_representer(cls, cls.to_yaml)
+
+class YAMLObject(object):
+ """
+ An object that can dump itself to a YAML stream
+ and load itself from a YAML stream.
+ """
+
+ __metaclass__ = YAMLObjectMetaclass
+ __slots__ = () # no direct instantiation, so allow immutable subclasses
+
+ yaml_loader = Loader
+ yaml_dumper = Dumper
+
+ yaml_tag = None
+ yaml_flow_style = None
+
+ def from_yaml(cls, loader, node):
+ """
+ Convert a representation node to a Python object.
+ """
+ return loader.construct_yaml_object(node, cls)
+ from_yaml = classmethod(from_yaml)
+
+ def to_yaml(cls, dumper, data):
+ """
+ Convert a Python object to a representation node.
+ """
+ return dumper.represent_yaml_object(cls.yaml_tag, data, cls,
+ flow_style=cls.yaml_flow_style)
+ to_yaml = classmethod(to_yaml)
+
diff --git a/python.d/python_modules/pyyaml2/composer.py b/python.d/python_modules/pyyaml2/composer.py
new file mode 100644
index 000000000..06e5ac782
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/composer.py
@@ -0,0 +1,139 @@
+
+__all__ = ['Composer', 'ComposerError']
+
+from error import MarkedYAMLError
+from events import *
+from nodes import *
+
+class ComposerError(MarkedYAMLError):
+ pass
+
+class Composer(object):
+
+ def __init__(self):
+ self.anchors = {}
+
+ def check_node(self):
+ # Drop the STREAM-START event.
+ if self.check_event(StreamStartEvent):
+ self.get_event()
+
+ # If there are more documents available?
+ return not self.check_event(StreamEndEvent)
+
+ def get_node(self):
+ # Get the root node of the next document.
+ if not self.check_event(StreamEndEvent):
+ return self.compose_document()
+
+ def get_single_node(self):
+ # Drop the STREAM-START event.
+ self.get_event()
+
+ # Compose a document if the stream is not empty.
+ document = None
+ if not self.check_event(StreamEndEvent):
+ document = self.compose_document()
+
+ # Ensure that the stream contains no more documents.
+ if not self.check_event(StreamEndEvent):
+ event = self.get_event()
+ raise ComposerError("expected a single document in the stream",
+ document.start_mark, "but found another document",
+ event.start_mark)
+
+ # Drop the STREAM-END event.
+ self.get_event()
+
+ return document
+
+ def compose_document(self):
+ # Drop the DOCUMENT-START event.
+ self.get_event()
+
+ # Compose the root node.
+ node = self.compose_node(None, None)
+
+ # Drop the DOCUMENT-END event.
+ self.get_event()
+
+ self.anchors = {}
+ return node
+
+ def compose_node(self, parent, index):
+ if self.check_event(AliasEvent):
+ event = self.get_event()
+ anchor = event.anchor
+ if anchor not in self.anchors:
+ raise ComposerError(None, None, "found undefined alias %r"
+ % anchor.encode('utf-8'), event.start_mark)
+ return self.anchors[anchor]
+ event = self.peek_event()
+ anchor = event.anchor
+ if anchor is not None:
+ if anchor in self.anchors:
+ raise ComposerError("found duplicate anchor %r; first occurence"
+ % anchor.encode('utf-8'), self.anchors[anchor].start_mark,
+ "second occurence", event.start_mark)
+ self.descend_resolver(parent, index)
+ if self.check_event(ScalarEvent):
+ node = self.compose_scalar_node(anchor)
+ elif self.check_event(SequenceStartEvent):
+ node = self.compose_sequence_node(anchor)
+ elif self.check_event(MappingStartEvent):
+ node = self.compose_mapping_node(anchor)
+ self.ascend_resolver()
+ return node
+
+ def compose_scalar_node(self, anchor):
+ event = self.get_event()
+ tag = event.tag
+ if tag is None or tag == u'!':
+ tag = self.resolve(ScalarNode, event.value, event.implicit)
+ node = ScalarNode(tag, event.value,
+ event.start_mark, event.end_mark, style=event.style)
+ if anchor is not None:
+ self.anchors[anchor] = node
+ return node
+
+ def compose_sequence_node(self, anchor):
+ start_event = self.get_event()
+ tag = start_event.tag
+ if tag is None or tag == u'!':
+ tag = self.resolve(SequenceNode, None, start_event.implicit)
+ node = SequenceNode(tag, [],
+ start_event.start_mark, None,
+ flow_style=start_event.flow_style)
+ if anchor is not None:
+ self.anchors[anchor] = node
+ index = 0
+ while not self.check_event(SequenceEndEvent):
+ node.value.append(self.compose_node(node, index))
+ index += 1
+ end_event = self.get_event()
+ node.end_mark = end_event.end_mark
+ return node
+
+ def compose_mapping_node(self, anchor):
+ start_event = self.get_event()
+ tag = start_event.tag
+ if tag is None or tag == u'!':
+ tag = self.resolve(MappingNode, None, start_event.implicit)
+ node = MappingNode(tag, [],
+ start_event.start_mark, None,
+ flow_style=start_event.flow_style)
+ if anchor is not None:
+ self.anchors[anchor] = node
+ while not self.check_event(MappingEndEvent):
+ #key_event = self.peek_event()
+ item_key = self.compose_node(node, None)
+ #if item_key in node.value:
+ # raise ComposerError("while composing a mapping", start_event.start_mark,
+ # "found duplicate key", key_event.start_mark)
+ item_value = self.compose_node(node, item_key)
+ #node.value[item_key] = item_value
+ node.value.append((item_key, item_value))
+ end_event = self.get_event()
+ node.end_mark = end_event.end_mark
+ return node
+
diff --git a/python.d/python_modules/pyyaml2/constructor.py b/python.d/python_modules/pyyaml2/constructor.py
new file mode 100644
index 000000000..635faac3e
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/constructor.py
@@ -0,0 +1,675 @@
+
+__all__ = ['BaseConstructor', 'SafeConstructor', 'Constructor',
+ 'ConstructorError']
+
+from error import *
+from nodes import *
+
+import datetime
+
+import binascii, re, sys, types
+
+class ConstructorError(MarkedYAMLError):
+ pass
+
+class BaseConstructor(object):
+
+ yaml_constructors = {}
+ yaml_multi_constructors = {}
+
+ def __init__(self):
+ self.constructed_objects = {}
+ self.recursive_objects = {}
+ self.state_generators = []
+ self.deep_construct = False
+
+ def check_data(self):
+ # If there are more documents available?
+ return self.check_node()
+
+ def get_data(self):
+ # Construct and return the next document.
+ if self.check_node():
+ return self.construct_document(self.get_node())
+
+ def get_single_data(self):
+ # Ensure that the stream contains a single document and construct it.
+ node = self.get_single_node()
+ if node is not None:
+ return self.construct_document(node)
+ return None
+
+ def construct_document(self, node):
+ data = self.construct_object(node)
+ while self.state_generators:
+ state_generators = self.state_generators
+ self.state_generators = []
+ for generator in state_generators:
+ for dummy in generator:
+ pass
+ self.constructed_objects = {}
+ self.recursive_objects = {}
+ self.deep_construct = False
+ return data
+
+ def construct_object(self, node, deep=False):
+ if node in self.constructed_objects:
+ return self.constructed_objects[node]
+ if deep:
+ old_deep = self.deep_construct
+ self.deep_construct = True
+ if node in self.recursive_objects:
+ raise ConstructorError(None, None,
+ "found unconstructable recursive node", node.start_mark)
+ self.recursive_objects[node] = None
+ constructor = None
+ tag_suffix = None
+ if node.tag in self.yaml_constructors:
+ constructor = self.yaml_constructors[node.tag]
+ else:
+ for tag_prefix in self.yaml_multi_constructors:
+ if node.tag.startswith(tag_prefix):
+ tag_suffix = node.tag[len(tag_prefix):]
+ constructor = self.yaml_multi_constructors[tag_prefix]
+ break
+ else:
+ if None in self.yaml_multi_constructors:
+ tag_suffix = node.tag
+ constructor = self.yaml_multi_constructors[None]
+ elif None in self.yaml_constructors:
+ constructor = self.yaml_constructors[None]
+ elif isinstance(node, ScalarNode):
+ constructor = self.__class__.construct_scalar
+ elif isinstance(node, SequenceNode):
+ constructor = self.__class__.construct_sequence
+ elif isinstance(node, MappingNode):
+ constructor = self.__class__.construct_mapping
+ if tag_suffix is None:
+ data = constructor(self, node)
+ else:
+ data = constructor(self, tag_suffix, node)
+ if isinstance(data, types.GeneratorType):
+ generator = data
+ data = generator.next()
+ if self.deep_construct:
+ for dummy in generator:
+ pass
+ else:
+ self.state_generators.append(generator)
+ self.constructed_objects[node] = data
+ del self.recursive_objects[node]
+ if deep:
+ self.deep_construct = old_deep
+ return data
+
+ def construct_scalar(self, node):
+ if not isinstance(node, ScalarNode):
+ raise ConstructorError(None, None,
+ "expected a scalar node, but found %s" % node.id,
+ node.start_mark)
+ return node.value
+
+ def construct_sequence(self, node, deep=False):
+ if not isinstance(node, SequenceNode):
+ raise ConstructorError(None, None,
+ "expected a sequence node, but found %s" % node.id,
+ node.start_mark)
+ return [self.construct_object(child, deep=deep)
+ for child in node.value]
+
+ def construct_mapping(self, node, deep=False):
+ if not isinstance(node, MappingNode):
+ raise ConstructorError(None, None,
+ "expected a mapping node, but found %s" % node.id,
+ node.start_mark)
+ mapping = {}
+ for key_node, value_node in node.value:
+ key = self.construct_object(key_node, deep=deep)
+ try:
+ hash(key)
+ except TypeError, exc:
+ raise ConstructorError("while constructing a mapping", node.start_mark,
+ "found unacceptable key (%s)" % exc, key_node.start_mark)
+ value = self.construct_object(value_node, deep=deep)
+ mapping[key] = value
+ return mapping
+
+ def construct_pairs(self, node, deep=False):
+ if not isinstance(node, MappingNode):
+ raise ConstructorError(None, None,
+ "expected a mapping node, but found %s" % node.id,
+ node.start_mark)
+ pairs = []
+ for key_node, value_node in node.value:
+ key = self.construct_object(key_node, deep=deep)
+ value = self.construct_object(value_node, deep=deep)
+ pairs.append((key, value))
+ return pairs
+
+ def add_constructor(cls, tag, constructor):
+ if not 'yaml_constructors' in cls.__dict__:
+ cls.yaml_constructors = cls.yaml_constructors.copy()
+ cls.yaml_constructors[tag] = constructor
+ add_constructor = classmethod(add_constructor)
+
+ def add_multi_constructor(cls, tag_prefix, multi_constructor):
+ if not 'yaml_multi_constructors' in cls.__dict__:
+ cls.yaml_multi_constructors = cls.yaml_multi_constructors.copy()
+ cls.yaml_multi_constructors[tag_prefix] = multi_constructor
+ add_multi_constructor = classmethod(add_multi_constructor)
+
+class SafeConstructor(BaseConstructor):
+
+ def construct_scalar(self, node):
+ if isinstance(node, MappingNode):
+ for key_node, value_node in node.value:
+ if key_node.tag == u'tag:yaml.org,2002:value':
+ return self.construct_scalar(value_node)
+ return BaseConstructor.construct_scalar(self, node)
+
+ def flatten_mapping(self, node):
+ merge = []
+ index = 0
+ while index < len(node.value):
+ key_node, value_node = node.value[index]
+ if key_node.tag == u'tag:yaml.org,2002:merge':
+ del node.value[index]
+ if isinstance(value_node, MappingNode):
+ self.flatten_mapping(value_node)
+ merge.extend(value_node.value)
+ elif isinstance(value_node, SequenceNode):
+ submerge = []
+ for subnode in value_node.value:
+ if not isinstance(subnode, MappingNode):
+ raise ConstructorError("while constructing a mapping",
+ node.start_mark,
+ "expected a mapping for merging, but found %s"
+ % subnode.id, subnode.start_mark)
+ self.flatten_mapping(subnode)
+ submerge.append(subnode.value)
+ submerge.reverse()
+ for value in submerge:
+ merge.extend(value)
+ else:
+ raise ConstructorError("while constructing a mapping", node.start_mark,
+ "expected a mapping or list of mappings for merging, but found %s"
+ % value_node.id, value_node.start_mark)
+ elif key_node.tag == u'tag:yaml.org,2002:value':
+ key_node.tag = u'tag:yaml.org,2002:str'
+ index += 1
+ else:
+ index += 1
+ if merge:
+ node.value = merge + node.value
+
+ def construct_mapping(self, node, deep=False):
+ if isinstance(node, MappingNode):
+ self.flatten_mapping(node)
+ return BaseConstructor.construct_mapping(self, node, deep=deep)
+
+ def construct_yaml_null(self, node):
+ self.construct_scalar(node)
+ return None
+
+ bool_values = {
+ u'yes': True,
+ u'no': False,
+ u'true': True,
+ u'false': False,
+ u'on': True,
+ u'off': False,
+ }
+
+ def construct_yaml_bool(self, node):
+ value = self.construct_scalar(node)
+ return self.bool_values[value.lower()]
+
+ def construct_yaml_int(self, node):
+ value = str(self.construct_scalar(node))
+ value = value.replace('_', '')
+ sign = +1
+ if value[0] == '-':
+ sign = -1
+ if value[0] in '+-':
+ value = value[1:]
+ if value == '0':
+ return 0
+ elif value.startswith('0b'):
+ return sign*int(value[2:], 2)
+ elif value.startswith('0x'):
+ return sign*int(value[2:], 16)
+ elif value[0] == '0':
+ return sign*int(value, 8)
+ elif ':' in value:
+ digits = [int(part) for part in value.split(':')]
+ digits.reverse()
+ base = 1
+ value = 0
+ for digit in digits:
+ value += digit*base
+ base *= 60
+ return sign*value
+ else:
+ return sign*int(value)
+
+ inf_value = 1e300
+ while inf_value != inf_value*inf_value:
+ inf_value *= inf_value
+ nan_value = -inf_value/inf_value # Trying to make a quiet NaN (like C99).
+
+ def construct_yaml_float(self, node):
+ value = str(self.construct_scalar(node))
+ value = value.replace('_', '').lower()
+ sign = +1
+ if value[0] == '-':
+ sign = -1
+ if value[0] in '+-':
+ value = value[1:]
+ if value == '.inf':
+ return sign*self.inf_value
+ elif value == '.nan':
+ return self.nan_value
+ elif ':' in value:
+ digits = [float(part) for part in value.split(':')]
+ digits.reverse()
+ base = 1
+ value = 0.0
+ for digit in digits:
+ value += digit*base
+ base *= 60
+ return sign*value
+ else:
+ return sign*float(value)
+
+ def construct_yaml_binary(self, node):
+ value = self.construct_scalar(node)
+ try:
+ return str(value).decode('base64')
+ except (binascii.Error, UnicodeEncodeError), exc:
+ raise ConstructorError(None, None,
+ "failed to decode base64 data: %s" % exc, node.start_mark)
+
+ timestamp_regexp = re.compile(
+ ur'''^(?P<year>[0-9][0-9][0-9][0-9])
+ -(?P<month>[0-9][0-9]?)
+ -(?P<day>[0-9][0-9]?)
+ (?:(?:[Tt]|[ \t]+)
+ (?P<hour>[0-9][0-9]?)
+ :(?P<minute>[0-9][0-9])
+ :(?P<second>[0-9][0-9])
+ (?:\.(?P<fraction>[0-9]*))?
+ (?:[ \t]*(?P<tz>Z|(?P<tz_sign>[-+])(?P<tz_hour>[0-9][0-9]?)
+ (?::(?P<tz_minute>[0-9][0-9]))?))?)?$''', re.X)
+
+ def construct_yaml_timestamp(self, node):
+ value = self.construct_scalar(node)
+ match = self.timestamp_regexp.match(node.value)
+ values = match.groupdict()
+ year = int(values['year'])
+ month = int(values['month'])
+ day = int(values['day'])
+ if not values['hour']:
+ return datetime.date(year, month, day)
+ hour = int(values['hour'])
+ minute = int(values['minute'])
+ second = int(values['second'])
+ fraction = 0
+ if values['fraction']:
+ fraction = values['fraction'][:6]
+ while len(fraction) < 6:
+ fraction += '0'
+ fraction = int(fraction)
+ delta = None
+ if values['tz_sign']:
+ tz_hour = int(values['tz_hour'])
+ tz_minute = int(values['tz_minute'] or 0)
+ delta = datetime.timedelta(hours=tz_hour, minutes=tz_minute)
+ if values['tz_sign'] == '-':
+ delta = -delta
+ data = datetime.datetime(year, month, day, hour, minute, second, fraction)
+ if delta:
+ data -= delta
+ return data
+
+ def construct_yaml_omap(self, node):
+ # Note: we do not check for duplicate keys, because it's too
+ # CPU-expensive.
+ omap = []
+ yield omap
+ if not isinstance(node, SequenceNode):
+ raise ConstructorError("while constructing an ordered map", node.start_mark,
+ "expected a sequence, but found %s" % node.id, node.start_mark)
+ for subnode in node.value:
+ if not isinstance(subnode, MappingNode):
+ raise ConstructorError("while constructing an ordered map", node.start_mark,
+ "expected a mapping of length 1, but found %s" % subnode.id,
+ subnode.start_mark)
+ if len(subnode.value) != 1:
+ raise ConstructorError("while constructing an ordered map", node.start_mark,
+ "expected a single mapping item, but found %d items" % len(subnode.value),
+ subnode.start_mark)
+ key_node, value_node = subnode.value[0]
+ key = self.construct_object(key_node)
+ value = self.construct_object(value_node)
+ omap.append((key, value))
+
+ def construct_yaml_pairs(self, node):
+ # Note: the same code as `construct_yaml_omap`.
+ pairs = []
+ yield pairs
+ if not isinstance(node, SequenceNode):
+ raise ConstructorError("while constructing pairs", node.start_mark,
+ "expected a sequence, but found %s" % node.id, node.start_mark)
+ for subnode in node.value:
+ if not isinstance(subnode, MappingNode):
+ raise ConstructorError("while constructing pairs", node.start_mark,
+ "expected a mapping of length 1, but found %s" % subnode.id,
+ subnode.start_mark)
+ if len(subnode.value) != 1:
+ raise ConstructorError("while constructing pairs", node.start_mark,
+ "expected a single mapping item, but found %d items" % len(subnode.value),
+ subnode.start_mark)
+ key_node, value_node = subnode.value[0]
+ key = self.construct_object(key_node)
+ value = self.construct_object(value_node)
+ pairs.append((key, value))
+
+ def construct_yaml_set(self, node):
+ data = set()
+ yield data
+ value = self.construct_mapping(node)
+ data.update(value)
+
+ def construct_yaml_str(self, node):
+ value = self.construct_scalar(node)
+ try:
+ return value.encode('ascii')
+ except UnicodeEncodeError:
+ return value
+
+ def construct_yaml_seq(self, node):
+ data = []
+ yield data
+ data.extend(self.construct_sequence(node))
+
+ def construct_yaml_map(self, node):
+ data = {}
+ yield data
+ value = self.construct_mapping(node)
+ data.update(value)
+
+ def construct_yaml_object(self, node, cls):
+ data = cls.__new__(cls)
+ yield data
+ if hasattr(data, '__setstate__'):
+ state = self.construct_mapping(node, deep=True)
+ data.__setstate__(state)
+ else:
+ state = self.construct_mapping(node)
+ data.__dict__.update(state)
+
+ def construct_undefined(self, node):
+ raise ConstructorError(None, None,
+ "could not determine a constructor for the tag %r" % node.tag.encode('utf-8'),
+ node.start_mark)
+
+SafeConstructor.add_constructor(
+ u'tag:yaml.org,2002:null',
+ SafeConstructor.construct_yaml_null)
+
+SafeConstructor.add_constructor(
+ u'tag:yaml.org,2002:bool',
+ SafeConstructor.construct_yaml_bool)
+
+SafeConstructor.add_constructor(
+ u'tag:yaml.org,2002:int',
+ SafeConstructor.construct_yaml_int)
+
+SafeConstructor.add_constructor(
+ u'tag:yaml.org,2002:float',
+ SafeConstructor.construct_yaml_float)
+
+SafeConstructor.add_constructor(
+ u'tag:yaml.org,2002:binary',
+ SafeConstructor.construct_yaml_binary)
+
+SafeConstructor.add_constructor(
+ u'tag:yaml.org,2002:timestamp',
+ SafeConstructor.construct_yaml_timestamp)
+
+SafeConstructor.add_constructor(
+ u'tag:yaml.org,2002:omap',
+ SafeConstructor.construct_yaml_omap)
+
+SafeConstructor.add_constructor(
+ u'tag:yaml.org,2002:pairs',
+ SafeConstructor.construct_yaml_pairs)
+
+SafeConstructor.add_constructor(
+ u'tag:yaml.org,2002:set',
+ SafeConstructor.construct_yaml_set)
+
+SafeConstructor.add_constructor(
+ u'tag:yaml.org,2002:str',
+ SafeConstructor.construct_yaml_str)
+
+SafeConstructor.add_constructor(
+ u'tag:yaml.org,2002:seq',
+ SafeConstructor.construct_yaml_seq)
+
+SafeConstructor.add_constructor(
+ u'tag:yaml.org,2002:map',
+ SafeConstructor.construct_yaml_map)
+
+SafeConstructor.add_constructor(None,
+ SafeConstructor.construct_undefined)
+
+class Constructor(SafeConstructor):
+
+ def construct_python_str(self, node):
+ return self.construct_scalar(node).encode('utf-8')
+
+ def construct_python_unicode(self, node):
+ return self.construct_scalar(node)
+
+ def construct_python_long(self, node):
+ return long(self.construct_yaml_int(node))
+
+ def construct_python_complex(self, node):
+ return complex(self.construct_scalar(node))
+
+ def construct_python_tuple(self, node):
+ return tuple(self.construct_sequence(node))
+
+ def find_python_module(self, name, mark):
+ if not name:
+ raise ConstructorError("while constructing a Python module", mark,
+ "expected non-empty name appended to the tag", mark)
+ try:
+ __import__(name)
+ except ImportError, exc:
+ raise ConstructorError("while constructing a Python module", mark,
+ "cannot find module %r (%s)" % (name.encode('utf-8'), exc), mark)
+ return sys.modules[name]
+
+ def find_python_name(self, name, mark):
+ if not name:
+ raise ConstructorError("while constructing a Python object", mark,
+ "expected non-empty name appended to the tag", mark)
+ if u'.' in name:
+ module_name, object_name = name.rsplit('.', 1)
+ else:
+ module_name = '__builtin__'
+ object_name = name
+ try:
+ __import__(module_name)
+ except ImportError, exc:
+ raise ConstructorError("while constructing a Python object", mark,
+ "cannot find module %r (%s)" % (module_name.encode('utf-8'), exc), mark)
+ module = sys.modules[module_name]
+ if not hasattr(module, object_name):
+ raise ConstructorError("while constructing a Python object", mark,
+ "cannot find %r in the module %r" % (object_name.encode('utf-8'),
+ module.__name__), mark)
+ return getattr(module, object_name)
+
+ def construct_python_name(self, suffix, node):
+ value = self.construct_scalar(node)
+ if value:
+ raise ConstructorError("while constructing a Python name", node.start_mark,
+ "expected the empty value, but found %r" % value.encode('utf-8'),
+ node.start_mark)
+ return self.find_python_name(suffix, node.start_mark)
+
+ def construct_python_module(self, suffix, node):
+ value = self.construct_scalar(node)
+ if value:
+ raise ConstructorError("while constructing a Python module", node.start_mark,
+ "expected the empty value, but found %r" % value.encode('utf-8'),
+ node.start_mark)
+ return self.find_python_module(suffix, node.start_mark)
+
+ class classobj: pass
+
+ def make_python_instance(self, suffix, node,
+ args=None, kwds=None, newobj=False):
+ if not args:
+ args = []
+ if not kwds:
+ kwds = {}
+ cls = self.find_python_name(suffix, node.start_mark)
+ if newobj and isinstance(cls, type(self.classobj)) \
+ and not args and not kwds:
+ instance = self.classobj()
+ instance.__class__ = cls
+ return instance
+ elif newobj and isinstance(cls, type):
+ return cls.__new__(cls, *args, **kwds)
+ else:
+ return cls(*args, **kwds)
+
+ def set_python_instance_state(self, instance, state):
+ if hasattr(instance, '__setstate__'):
+ instance.__setstate__(state)
+ else:
+ slotstate = {}
+ if isinstance(state, tuple) and len(state) == 2:
+ state, slotstate = state
+ if hasattr(instance, '__dict__'):
+ instance.__dict__.update(state)
+ elif state:
+ slotstate.update(state)
+ for key, value in slotstate.items():
+ setattr(object, key, value)
+
+ def construct_python_object(self, suffix, node):
+ # Format:
+ # !!python/object:module.name { ... state ... }
+ instance = self.make_python_instance(suffix, node, newobj=True)
+ yield instance
+ deep = hasattr(instance, '__setstate__')
+ state = self.construct_mapping(node, deep=deep)
+ self.set_python_instance_state(instance, state)
+
+ def construct_python_object_apply(self, suffix, node, newobj=False):
+ # Format:
+ # !!python/object/apply # (or !!python/object/new)
+ # args: [ ... arguments ... ]
+ # kwds: { ... keywords ... }
+ # state: ... state ...
+ # listitems: [ ... listitems ... ]
+ # dictitems: { ... dictitems ... }
+ # or short format:
+ # !!python/object/apply [ ... arguments ... ]
+ # The difference between !!python/object/apply and !!python/object/new
+ # is how an object is created, check make_python_instance for details.
+ if isinstance(node, SequenceNode):
+ args = self.construct_sequence(node, deep=True)
+ kwds = {}
+ state = {}
+ listitems = []
+ dictitems = {}
+ else:
+ value = self.construct_mapping(node, deep=True)
+ args = value.get('args', [])
+ kwds = value.get('kwds', {})
+ state = value.get('state', {})
+ listitems = value.get('listitems', [])
+ dictitems = value.get('dictitems', {})
+ instance = self.make_python_instance(suffix, node, args, kwds, newobj)
+ if state:
+ self.set_python_instance_state(instance, state)
+ if listitems:
+ instance.extend(listitems)
+ if dictitems:
+ for key in dictitems:
+ instance[key] = dictitems[key]
+ return instance
+
+ def construct_python_object_new(self, suffix, node):
+ return self.construct_python_object_apply(suffix, node, newobj=True)
+
+Constructor.add_constructor(
+ u'tag:yaml.org,2002:python/none',
+ Constructor.construct_yaml_null)
+
+Constructor.add_constructor(
+ u'tag:yaml.org,2002:python/bool',
+ Constructor.construct_yaml_bool)
+
+Constructor.add_constructor(
+ u'tag:yaml.org,2002:python/str',
+ Constructor.construct_python_str)
+
+Constructor.add_constructor(
+ u'tag:yaml.org,2002:python/unicode',
+ Constructor.construct_python_unicode)
+
+Constructor.add_constructor(
+ u'tag:yaml.org,2002:python/int',
+ Constructor.construct_yaml_int)
+
+Constructor.add_constructor(
+ u'tag:yaml.org,2002:python/long',
+ Constructor.construct_python_long)
+
+Constructor.add_constructor(
+ u'tag:yaml.org,2002:python/float',
+ Constructor.construct_yaml_float)
+
+Constructor.add_constructor(
+ u'tag:yaml.org,2002:python/complex',
+ Constructor.construct_python_complex)
+
+Constructor.add_constructor(
+ u'tag:yaml.org,2002:python/list',
+ Constructor.construct_yaml_seq)
+
+Constructor.add_constructor(
+ u'tag:yaml.org,2002:python/tuple',
+ Constructor.construct_python_tuple)
+
+Constructor.add_constructor(
+ u'tag:yaml.org,2002:python/dict',
+ Constructor.construct_yaml_map)
+
+Constructor.add_multi_constructor(
+ u'tag:yaml.org,2002:python/name:',
+ Constructor.construct_python_name)
+
+Constructor.add_multi_constructor(
+ u'tag:yaml.org,2002:python/module:',
+ Constructor.construct_python_module)
+
+Constructor.add_multi_constructor(
+ u'tag:yaml.org,2002:python/object:',
+ Constructor.construct_python_object)
+
+Constructor.add_multi_constructor(
+ u'tag:yaml.org,2002:python/object/apply:',
+ Constructor.construct_python_object_apply)
+
+Constructor.add_multi_constructor(
+ u'tag:yaml.org,2002:python/object/new:',
+ Constructor.construct_python_object_new)
+
diff --git a/python.d/python_modules/pyyaml2/cyaml.py b/python.d/python_modules/pyyaml2/cyaml.py
new file mode 100644
index 000000000..68dcd7519
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/cyaml.py
@@ -0,0 +1,85 @@
+
+__all__ = ['CBaseLoader', 'CSafeLoader', 'CLoader',
+ 'CBaseDumper', 'CSafeDumper', 'CDumper']
+
+from _yaml import CParser, CEmitter
+
+from constructor import *
+
+from serializer import *
+from representer import *
+
+from resolver import *
+
+class CBaseLoader(CParser, BaseConstructor, BaseResolver):
+
+ def __init__(self, stream):
+ CParser.__init__(self, stream)
+ BaseConstructor.__init__(self)
+ BaseResolver.__init__(self)
+
+class CSafeLoader(CParser, SafeConstructor, Resolver):
+
+ def __init__(self, stream):
+ CParser.__init__(self, stream)
+ SafeConstructor.__init__(self)
+ Resolver.__init__(self)
+
+class CLoader(CParser, Constructor, Resolver):
+
+ def __init__(self, stream):
+ CParser.__init__(self, stream)
+ Constructor.__init__(self)
+ Resolver.__init__(self)
+
+class CBaseDumper(CEmitter, BaseRepresenter, BaseResolver):
+
+ def __init__(self, stream,
+ default_style=None, default_flow_style=None,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None,
+ encoding=None, explicit_start=None, explicit_end=None,
+ version=None, tags=None):
+ CEmitter.__init__(self, stream, canonical=canonical,
+ indent=indent, width=width, encoding=encoding,
+ allow_unicode=allow_unicode, line_break=line_break,
+ explicit_start=explicit_start, explicit_end=explicit_end,
+ version=version, tags=tags)
+ Representer.__init__(self, default_style=default_style,
+ default_flow_style=default_flow_style)
+ Resolver.__init__(self)
+
+class CSafeDumper(CEmitter, SafeRepresenter, Resolver):
+
+ def __init__(self, stream,
+ default_style=None, default_flow_style=None,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None,
+ encoding=None, explicit_start=None, explicit_end=None,
+ version=None, tags=None):
+ CEmitter.__init__(self, stream, canonical=canonical,
+ indent=indent, width=width, encoding=encoding,
+ allow_unicode=allow_unicode, line_break=line_break,
+ explicit_start=explicit_start, explicit_end=explicit_end,
+ version=version, tags=tags)
+ SafeRepresenter.__init__(self, default_style=default_style,
+ default_flow_style=default_flow_style)
+ Resolver.__init__(self)
+
+class CDumper(CEmitter, Serializer, Representer, Resolver):
+
+ def __init__(self, stream,
+ default_style=None, default_flow_style=None,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None,
+ encoding=None, explicit_start=None, explicit_end=None,
+ version=None, tags=None):
+ CEmitter.__init__(self, stream, canonical=canonical,
+ indent=indent, width=width, encoding=encoding,
+ allow_unicode=allow_unicode, line_break=line_break,
+ explicit_start=explicit_start, explicit_end=explicit_end,
+ version=version, tags=tags)
+ Representer.__init__(self, default_style=default_style,
+ default_flow_style=default_flow_style)
+ Resolver.__init__(self)
+
diff --git a/python.d/python_modules/pyyaml2/dumper.py b/python.d/python_modules/pyyaml2/dumper.py
new file mode 100644
index 000000000..f811d2c91
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/dumper.py
@@ -0,0 +1,62 @@
+
+__all__ = ['BaseDumper', 'SafeDumper', 'Dumper']
+
+from emitter import *
+from serializer import *
+from representer import *
+from resolver import *
+
+class BaseDumper(Emitter, Serializer, BaseRepresenter, BaseResolver):
+
+ def __init__(self, stream,
+ default_style=None, default_flow_style=None,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None,
+ encoding=None, explicit_start=None, explicit_end=None,
+ version=None, tags=None):
+ Emitter.__init__(self, stream, canonical=canonical,
+ indent=indent, width=width,
+ allow_unicode=allow_unicode, line_break=line_break)
+ Serializer.__init__(self, encoding=encoding,
+ explicit_start=explicit_start, explicit_end=explicit_end,
+ version=version, tags=tags)
+ Representer.__init__(self, default_style=default_style,
+ default_flow_style=default_flow_style)
+ Resolver.__init__(self)
+
+class SafeDumper(Emitter, Serializer, SafeRepresenter, Resolver):
+
+ def __init__(self, stream,
+ default_style=None, default_flow_style=None,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None,
+ encoding=None, explicit_start=None, explicit_end=None,
+ version=None, tags=None):
+ Emitter.__init__(self, stream, canonical=canonical,
+ indent=indent, width=width,
+ allow_unicode=allow_unicode, line_break=line_break)
+ Serializer.__init__(self, encoding=encoding,
+ explicit_start=explicit_start, explicit_end=explicit_end,
+ version=version, tags=tags)
+ SafeRepresenter.__init__(self, default_style=default_style,
+ default_flow_style=default_flow_style)
+ Resolver.__init__(self)
+
+class Dumper(Emitter, Serializer, Representer, Resolver):
+
+ def __init__(self, stream,
+ default_style=None, default_flow_style=None,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None,
+ encoding=None, explicit_start=None, explicit_end=None,
+ version=None, tags=None):
+ Emitter.__init__(self, stream, canonical=canonical,
+ indent=indent, width=width,
+ allow_unicode=allow_unicode, line_break=line_break)
+ Serializer.__init__(self, encoding=encoding,
+ explicit_start=explicit_start, explicit_end=explicit_end,
+ version=version, tags=tags)
+ Representer.__init__(self, default_style=default_style,
+ default_flow_style=default_flow_style)
+ Resolver.__init__(self)
+
diff --git a/python.d/python_modules/pyyaml2/emitter.py b/python.d/python_modules/pyyaml2/emitter.py
new file mode 100644
index 000000000..e5bcdcccb
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/emitter.py
@@ -0,0 +1,1140 @@
+
+# Emitter expects events obeying the following grammar:
+# stream ::= STREAM-START document* STREAM-END
+# document ::= DOCUMENT-START node DOCUMENT-END
+# node ::= SCALAR | sequence | mapping
+# sequence ::= SEQUENCE-START node* SEQUENCE-END
+# mapping ::= MAPPING-START (node node)* MAPPING-END
+
+__all__ = ['Emitter', 'EmitterError']
+
+from error import YAMLError
+from events import *
+
+class EmitterError(YAMLError):
+ pass
+
+class ScalarAnalysis(object):
+ def __init__(self, scalar, empty, multiline,
+ allow_flow_plain, allow_block_plain,
+ allow_single_quoted, allow_double_quoted,
+ allow_block):
+ self.scalar = scalar
+ self.empty = empty
+ self.multiline = multiline
+ self.allow_flow_plain = allow_flow_plain
+ self.allow_block_plain = allow_block_plain
+ self.allow_single_quoted = allow_single_quoted
+ self.allow_double_quoted = allow_double_quoted
+ self.allow_block = allow_block
+
+class Emitter(object):
+
+ DEFAULT_TAG_PREFIXES = {
+ u'!' : u'!',
+ u'tag:yaml.org,2002:' : u'!!',
+ }
+
+ def __init__(self, stream, canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None):
+
+ # The stream should have the methods `write` and possibly `flush`.
+ self.stream = stream
+
+ # Encoding can be overriden by STREAM-START.
+ self.encoding = None
+
+ # Emitter is a state machine with a stack of states to handle nested
+ # structures.
+ self.states = []
+ self.state = self.expect_stream_start
+
+ # Current event and the event queue.
+ self.events = []
+ self.event = None
+
+ # The current indentation level and the stack of previous indents.
+ self.indents = []
+ self.indent = None
+
+ # Flow level.
+ self.flow_level = 0
+
+ # Contexts.
+ self.root_context = False
+ self.sequence_context = False
+ self.mapping_context = False
+ self.simple_key_context = False
+
+ # Characteristics of the last emitted character:
+ # - current position.
+ # - is it a whitespace?
+ # - is it an indention character
+ # (indentation space, '-', '?', or ':')?
+ self.line = 0
+ self.column = 0
+ self.whitespace = True
+ self.indention = True
+
+ # Whether the document requires an explicit document indicator
+ self.open_ended = False
+
+ # Formatting details.
+ self.canonical = canonical
+ self.allow_unicode = allow_unicode
+ self.best_indent = 2
+ if indent and 1 < indent < 10:
+ self.best_indent = indent
+ self.best_width = 80
+ if width and width > self.best_indent*2:
+ self.best_width = width
+ self.best_line_break = u'\n'
+ if line_break in [u'\r', u'\n', u'\r\n']:
+ self.best_line_break = line_break
+
+ # Tag prefixes.
+ self.tag_prefixes = None
+
+ # Prepared anchor and tag.
+ self.prepared_anchor = None
+ self.prepared_tag = None
+
+ # Scalar analysis and style.
+ self.analysis = None
+ self.style = None
+
+ def dispose(self):
+ # Reset the state attributes (to clear self-references)
+ self.states = []
+ self.state = None
+
+ def emit(self, event):
+ self.events.append(event)
+ while not self.need_more_events():
+ self.event = self.events.pop(0)
+ self.state()
+ self.event = None
+
+ # In some cases, we wait for a few next events before emitting.
+
+ def need_more_events(self):
+ if not self.events:
+ return True
+ event = self.events[0]
+ if isinstance(event, DocumentStartEvent):
+ return self.need_events(1)
+ elif isinstance(event, SequenceStartEvent):
+ return self.need_events(2)
+ elif isinstance(event, MappingStartEvent):
+ return self.need_events(3)
+ else:
+ return False
+
+ def need_events(self, count):
+ level = 0
+ for event in self.events[1:]:
+ if isinstance(event, (DocumentStartEvent, CollectionStartEvent)):
+ level += 1
+ elif isinstance(event, (DocumentEndEvent, CollectionEndEvent)):
+ level -= 1
+ elif isinstance(event, StreamEndEvent):
+ level = -1
+ if level < 0:
+ return False
+ return (len(self.events) < count+1)
+
+ def increase_indent(self, flow=False, indentless=False):
+ self.indents.append(self.indent)
+ if self.indent is None:
+ if flow:
+ self.indent = self.best_indent
+ else:
+ self.indent = 0
+ elif not indentless:
+ self.indent += self.best_indent
+
+ # States.
+
+ # Stream handlers.
+
+ def expect_stream_start(self):
+ if isinstance(self.event, StreamStartEvent):
+ if self.event.encoding and not getattr(self.stream, 'encoding', None):
+ self.encoding = self.event.encoding
+ self.write_stream_start()
+ self.state = self.expect_first_document_start
+ else:
+ raise EmitterError("expected StreamStartEvent, but got %s"
+ % self.event)
+
+ def expect_nothing(self):
+ raise EmitterError("expected nothing, but got %s" % self.event)
+
+ # Document handlers.
+
+ def expect_first_document_start(self):
+ return self.expect_document_start(first=True)
+
+ def expect_document_start(self, first=False):
+ if isinstance(self.event, DocumentStartEvent):
+ if (self.event.version or self.event.tags) and self.open_ended:
+ self.write_indicator(u'...', True)
+ self.write_indent()
+ if self.event.version:
+ version_text = self.prepare_version(self.event.version)
+ self.write_version_directive(version_text)
+ self.tag_prefixes = self.DEFAULT_TAG_PREFIXES.copy()
+ if self.event.tags:
+ handles = self.event.tags.keys()
+ handles.sort()
+ for handle in handles:
+ prefix = self.event.tags[handle]
+ self.tag_prefixes[prefix] = handle
+ handle_text = self.prepare_tag_handle(handle)
+ prefix_text = self.prepare_tag_prefix(prefix)
+ self.write_tag_directive(handle_text, prefix_text)
+ implicit = (first and not self.event.explicit and not self.canonical
+ and not self.event.version and not self.event.tags
+ and not self.check_empty_document())
+ if not implicit:
+ self.write_indent()
+ self.write_indicator(u'---', True)
+ if self.canonical:
+ self.write_indent()
+ self.state = self.expect_document_root
+ elif isinstance(self.event, StreamEndEvent):
+ if self.open_ended:
+ self.write_indicator(u'...', True)
+ self.write_indent()
+ self.write_stream_end()
+ self.state = self.expect_nothing
+ else:
+ raise EmitterError("expected DocumentStartEvent, but got %s"
+ % self.event)
+
+ def expect_document_end(self):
+ if isinstance(self.event, DocumentEndEvent):
+ self.write_indent()
+ if self.event.explicit:
+ self.write_indicator(u'...', True)
+ self.write_indent()
+ self.flush_stream()
+ self.state = self.expect_document_start
+ else:
+ raise EmitterError("expected DocumentEndEvent, but got %s"
+ % self.event)
+
+ def expect_document_root(self):
+ self.states.append(self.expect_document_end)
+ self.expect_node(root=True)
+
+ # Node handlers.
+
+ def expect_node(self, root=False, sequence=False, mapping=False,
+ simple_key=False):
+ self.root_context = root
+ self.sequence_context = sequence
+ self.mapping_context = mapping
+ self.simple_key_context = simple_key
+ if isinstance(self.event, AliasEvent):
+ self.expect_alias()
+ elif isinstance(self.event, (ScalarEvent, CollectionStartEvent)):
+ self.process_anchor(u'&')
+ self.process_tag()
+ if isinstance(self.event, ScalarEvent):
+ self.expect_scalar()
+ elif isinstance(self.event, SequenceStartEvent):
+ if self.flow_level or self.canonical or self.event.flow_style \
+ or self.check_empty_sequence():
+ self.expect_flow_sequence()
+ else:
+ self.expect_block_sequence()
+ elif isinstance(self.event, MappingStartEvent):
+ if self.flow_level or self.canonical or self.event.flow_style \
+ or self.check_empty_mapping():
+ self.expect_flow_mapping()
+ else:
+ self.expect_block_mapping()
+ else:
+ raise EmitterError("expected NodeEvent, but got %s" % self.event)
+
+ def expect_alias(self):
+ if self.event.anchor is None:
+ raise EmitterError("anchor is not specified for alias")
+ self.process_anchor(u'*')
+ self.state = self.states.pop()
+
+ def expect_scalar(self):
+ self.increase_indent(flow=True)
+ self.process_scalar()
+ self.indent = self.indents.pop()
+ self.state = self.states.pop()
+
+ # Flow sequence handlers.
+
+ def expect_flow_sequence(self):
+ self.write_indicator(u'[', True, whitespace=True)
+ self.flow_level += 1
+ self.increase_indent(flow=True)
+ self.state = self.expect_first_flow_sequence_item
+
+ def expect_first_flow_sequence_item(self):
+ if isinstance(self.event, SequenceEndEvent):
+ self.indent = self.indents.pop()
+ self.flow_level -= 1
+ self.write_indicator(u']', False)
+ self.state = self.states.pop()
+ else:
+ if self.canonical or self.column > self.best_width:
+ self.write_indent()
+ self.states.append(self.expect_flow_sequence_item)
+ self.expect_node(sequence=True)
+
+ def expect_flow_sequence_item(self):
+ if isinstance(self.event, SequenceEndEvent):
+ self.indent = self.indents.pop()
+ self.flow_level -= 1
+ if self.canonical:
+ self.write_indicator(u',', False)
+ self.write_indent()
+ self.write_indicator(u']', False)
+ self.state = self.states.pop()
+ else:
+ self.write_indicator(u',', False)
+ if self.canonical or self.column > self.best_width:
+ self.write_indent()
+ self.states.append(self.expect_flow_sequence_item)
+ self.expect_node(sequence=True)
+
+ # Flow mapping handlers.
+
+ def expect_flow_mapping(self):
+ self.write_indicator(u'{', True, whitespace=True)
+ self.flow_level += 1
+ self.increase_indent(flow=True)
+ self.state = self.expect_first_flow_mapping_key
+
+ def expect_first_flow_mapping_key(self):
+ if isinstance(self.event, MappingEndEvent):
+ self.indent = self.indents.pop()
+ self.flow_level -= 1
+ self.write_indicator(u'}', False)
+ self.state = self.states.pop()
+ else:
+ if self.canonical or self.column > self.best_width:
+ self.write_indent()
+ if not self.canonical and self.check_simple_key():
+ self.states.append(self.expect_flow_mapping_simple_value)
+ self.expect_node(mapping=True, simple_key=True)
+ else:
+ self.write_indicator(u'?', True)
+ self.states.append(self.expect_flow_mapping_value)
+ self.expect_node(mapping=True)
+
+ def expect_flow_mapping_key(self):
+ if isinstance(self.event, MappingEndEvent):
+ self.indent = self.indents.pop()
+ self.flow_level -= 1
+ if self.canonical:
+ self.write_indicator(u',', False)
+ self.write_indent()
+ self.write_indicator(u'}', False)
+ self.state = self.states.pop()
+ else:
+ self.write_indicator(u',', False)
+ if self.canonical or self.column > self.best_width:
+ self.write_indent()
+ if not self.canonical and self.check_simple_key():
+ self.states.append(self.expect_flow_mapping_simple_value)
+ self.expect_node(mapping=True, simple_key=True)
+ else:
+ self.write_indicator(u'?', True)
+ self.states.append(self.expect_flow_mapping_value)
+ self.expect_node(mapping=True)
+
+ def expect_flow_mapping_simple_value(self):
+ self.write_indicator(u':', False)
+ self.states.append(self.expect_flow_mapping_key)
+ self.expect_node(mapping=True)
+
+ def expect_flow_mapping_value(self):
+ if self.canonical or self.column > self.best_width:
+ self.write_indent()
+ self.write_indicator(u':', True)
+ self.states.append(self.expect_flow_mapping_key)
+ self.expect_node(mapping=True)
+
+ # Block sequence handlers.
+
+ def expect_block_sequence(self):
+ indentless = (self.mapping_context and not self.indention)
+ self.increase_indent(flow=False, indentless=indentless)
+ self.state = self.expect_first_block_sequence_item
+
+ def expect_first_block_sequence_item(self):
+ return self.expect_block_sequence_item(first=True)
+
+ def expect_block_sequence_item(self, first=False):
+ if not first and isinstance(self.event, SequenceEndEvent):
+ self.indent = self.indents.pop()
+ self.state = self.states.pop()
+ else:
+ self.write_indent()
+ self.write_indicator(u'-', True, indention=True)
+ self.states.append(self.expect_block_sequence_item)
+ self.expect_node(sequence=True)
+
+ # Block mapping handlers.
+
+ def expect_block_mapping(self):
+ self.increase_indent(flow=False)
+ self.state = self.expect_first_block_mapping_key
+
+ def expect_first_block_mapping_key(self):
+ return self.expect_block_mapping_key(first=True)
+
+ def expect_block_mapping_key(self, first=False):
+ if not first and isinstance(self.event, MappingEndEvent):
+ self.indent = self.indents.pop()
+ self.state = self.states.pop()
+ else:
+ self.write_indent()
+ if self.check_simple_key():
+ self.states.append(self.expect_block_mapping_simple_value)
+ self.expect_node(mapping=True, simple_key=True)
+ else:
+ self.write_indicator(u'?', True, indention=True)
+ self.states.append(self.expect_block_mapping_value)
+ self.expect_node(mapping=True)
+
+ def expect_block_mapping_simple_value(self):
+ self.write_indicator(u':', False)
+ self.states.append(self.expect_block_mapping_key)
+ self.expect_node(mapping=True)
+
+ def expect_block_mapping_value(self):
+ self.write_indent()
+ self.write_indicator(u':', True, indention=True)
+ self.states.append(self.expect_block_mapping_key)
+ self.expect_node(mapping=True)
+
+ # Checkers.
+
+ def check_empty_sequence(self):
+ return (isinstance(self.event, SequenceStartEvent) and self.events
+ and isinstance(self.events[0], SequenceEndEvent))
+
+ def check_empty_mapping(self):
+ return (isinstance(self.event, MappingStartEvent) and self.events
+ and isinstance(self.events[0], MappingEndEvent))
+
+ def check_empty_document(self):
+ if not isinstance(self.event, DocumentStartEvent) or not self.events:
+ return False
+ event = self.events[0]
+ return (isinstance(event, ScalarEvent) and event.anchor is None
+ and event.tag is None and event.implicit and event.value == u'')
+
+ def check_simple_key(self):
+ length = 0
+ if isinstance(self.event, NodeEvent) and self.event.anchor is not None:
+ if self.prepared_anchor is None:
+ self.prepared_anchor = self.prepare_anchor(self.event.anchor)
+ length += len(self.prepared_anchor)
+ if isinstance(self.event, (ScalarEvent, CollectionStartEvent)) \
+ and self.event.tag is not None:
+ if self.prepared_tag is None:
+ self.prepared_tag = self.prepare_tag(self.event.tag)
+ length += len(self.prepared_tag)
+ if isinstance(self.event, ScalarEvent):
+ if self.analysis is None:
+ self.analysis = self.analyze_scalar(self.event.value)
+ length += len(self.analysis.scalar)
+ return (length < 128 and (isinstance(self.event, AliasEvent)
+ or (isinstance(self.event, ScalarEvent)
+ and not self.analysis.empty and not self.analysis.multiline)
+ or self.check_empty_sequence() or self.check_empty_mapping()))
+
+ # Anchor, Tag, and Scalar processors.
+
+ def process_anchor(self, indicator):
+ if self.event.anchor is None:
+ self.prepared_anchor = None
+ return
+ if self.prepared_anchor is None:
+ self.prepared_anchor = self.prepare_anchor(self.event.anchor)
+ if self.prepared_anchor:
+ self.write_indicator(indicator+self.prepared_anchor, True)
+ self.prepared_anchor = None
+
+ def process_tag(self):
+ tag = self.event.tag
+ if isinstance(self.event, ScalarEvent):
+ if self.style is None:
+ self.style = self.choose_scalar_style()
+ if ((not self.canonical or tag is None) and
+ ((self.style == '' and self.event.implicit[0])
+ or (self.style != '' and self.event.implicit[1]))):
+ self.prepared_tag = None
+ return
+ if self.event.implicit[0] and tag is None:
+ tag = u'!'
+ self.prepared_tag = None
+ else:
+ if (not self.canonical or tag is None) and self.event.implicit:
+ self.prepared_tag = None
+ return
+ if tag is None:
+ raise EmitterError("tag is not specified")
+ if self.prepared_tag is None:
+ self.prepared_tag = self.prepare_tag(tag)
+ if self.prepared_tag:
+ self.write_indicator(self.prepared_tag, True)
+ self.prepared_tag = None
+
+ def choose_scalar_style(self):
+ if self.analysis is None:
+ self.analysis = self.analyze_scalar(self.event.value)
+ if self.event.style == '"' or self.canonical:
+ return '"'
+ if not self.event.style and self.event.implicit[0]:
+ if (not (self.simple_key_context and
+ (self.analysis.empty or self.analysis.multiline))
+ and (self.flow_level and self.analysis.allow_flow_plain
+ or (not self.flow_level and self.analysis.allow_block_plain))):
+ return ''
+ if self.event.style and self.event.style in '|>':
+ if (not self.flow_level and not self.simple_key_context
+ and self.analysis.allow_block):
+ return self.event.style
+ if not self.event.style or self.event.style == '\'':
+ if (self.analysis.allow_single_quoted and
+ not (self.simple_key_context and self.analysis.multiline)):
+ return '\''
+ return '"'
+
+ def process_scalar(self):
+ if self.analysis is None:
+ self.analysis = self.analyze_scalar(self.event.value)
+ if self.style is None:
+ self.style = self.choose_scalar_style()
+ split = (not self.simple_key_context)
+ #if self.analysis.multiline and split \
+ # and (not self.style or self.style in '\'\"'):
+ # self.write_indent()
+ if self.style == '"':
+ self.write_double_quoted(self.analysis.scalar, split)
+ elif self.style == '\'':
+ self.write_single_quoted(self.analysis.scalar, split)
+ elif self.style == '>':
+ self.write_folded(self.analysis.scalar)
+ elif self.style == '|':
+ self.write_literal(self.analysis.scalar)
+ else:
+ self.write_plain(self.analysis.scalar, split)
+ self.analysis = None
+ self.style = None
+
+ # Analyzers.
+
+ def prepare_version(self, version):
+ major, minor = version
+ if major != 1:
+ raise EmitterError("unsupported YAML version: %d.%d" % (major, minor))
+ return u'%d.%d' % (major, minor)
+
+ def prepare_tag_handle(self, handle):
+ if not handle:
+ raise EmitterError("tag handle must not be empty")
+ if handle[0] != u'!' or handle[-1] != u'!':
+ raise EmitterError("tag handle must start and end with '!': %r"
+ % (handle.encode('utf-8')))
+ for ch in handle[1:-1]:
+ if not (u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z' \
+ or ch in u'-_'):
+ raise EmitterError("invalid character %r in the tag handle: %r"
+ % (ch.encode('utf-8'), handle.encode('utf-8')))
+ return handle
+
+ def prepare_tag_prefix(self, prefix):
+ if not prefix:
+ raise EmitterError("tag prefix must not be empty")
+ chunks = []
+ start = end = 0
+ if prefix[0] == u'!':
+ end = 1
+ while end < len(prefix):
+ ch = prefix[end]
+ if u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z' \
+ or ch in u'-;/?!:@&=+$,_.~*\'()[]':
+ end += 1
+ else:
+ if start < end:
+ chunks.append(prefix[start:end])
+ start = end = end+1
+ data = ch.encode('utf-8')
+ for ch in data:
+ chunks.append(u'%%%02X' % ord(ch))
+ if start < end:
+ chunks.append(prefix[start:end])
+ return u''.join(chunks)
+
+ def prepare_tag(self, tag):
+ if not tag:
+ raise EmitterError("tag must not be empty")
+ if tag == u'!':
+ return tag
+ handle = None
+ suffix = tag
+ prefixes = self.tag_prefixes.keys()
+ prefixes.sort()
+ for prefix in prefixes:
+ if tag.startswith(prefix) \
+ and (prefix == u'!' or len(prefix) < len(tag)):
+ handle = self.tag_prefixes[prefix]
+ suffix = tag[len(prefix):]
+ chunks = []
+ start = end = 0
+ while end < len(suffix):
+ ch = suffix[end]
+ if u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z' \
+ or ch in u'-;/?:@&=+$,_.~*\'()[]' \
+ or (ch == u'!' and handle != u'!'):
+ end += 1
+ else:
+ if start < end:
+ chunks.append(suffix[start:end])
+ start = end = end+1
+ data = ch.encode('utf-8')
+ for ch in data:
+ chunks.append(u'%%%02X' % ord(ch))
+ if start < end:
+ chunks.append(suffix[start:end])
+ suffix_text = u''.join(chunks)
+ if handle:
+ return u'%s%s' % (handle, suffix_text)
+ else:
+ return u'!<%s>' % suffix_text
+
+ def prepare_anchor(self, anchor):
+ if not anchor:
+ raise EmitterError("anchor must not be empty")
+ for ch in anchor:
+ if not (u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z' \
+ or ch in u'-_'):
+ raise EmitterError("invalid character %r in the anchor: %r"
+ % (ch.encode('utf-8'), anchor.encode('utf-8')))
+ return anchor
+
+ def analyze_scalar(self, scalar):
+
+ # Empty scalar is a special case.
+ if not scalar:
+ return ScalarAnalysis(scalar=scalar, empty=True, multiline=False,
+ allow_flow_plain=False, allow_block_plain=True,
+ allow_single_quoted=True, allow_double_quoted=True,
+ allow_block=False)
+
+ # Indicators and special characters.
+ block_indicators = False
+ flow_indicators = False
+ line_breaks = False
+ special_characters = False
+
+ # Important whitespace combinations.
+ leading_space = False
+ leading_break = False
+ trailing_space = False
+ trailing_break = False
+ break_space = False
+ space_break = False
+
+ # Check document indicators.
+ if scalar.startswith(u'---') or scalar.startswith(u'...'):
+ block_indicators = True
+ flow_indicators = True
+
+ # First character or preceded by a whitespace.
+ preceeded_by_whitespace = True
+
+ # Last character or followed by a whitespace.
+ followed_by_whitespace = (len(scalar) == 1 or
+ scalar[1] in u'\0 \t\r\n\x85\u2028\u2029')
+
+ # The previous character is a space.
+ previous_space = False
+
+ # The previous character is a break.
+ previous_break = False
+
+ index = 0
+ while index < len(scalar):
+ ch = scalar[index]
+
+ # Check for indicators.
+ if index == 0:
+ # Leading indicators are special characters.
+ if ch in u'#,[]{}&*!|>\'\"%@`':
+ flow_indicators = True
+ block_indicators = True
+ if ch in u'?:':
+ flow_indicators = True
+ if followed_by_whitespace:
+ block_indicators = True
+ if ch == u'-' and followed_by_whitespace:
+ flow_indicators = True
+ block_indicators = True
+ else:
+ # Some indicators cannot appear within a scalar as well.
+ if ch in u',?[]{}':
+ flow_indicators = True
+ if ch == u':':
+ flow_indicators = True
+ if followed_by_whitespace:
+ block_indicators = True
+ if ch == u'#' and preceeded_by_whitespace:
+ flow_indicators = True
+ block_indicators = True
+
+ # Check for line breaks, special, and unicode characters.
+ if ch in u'\n\x85\u2028\u2029':
+ line_breaks = True
+ if not (ch == u'\n' or u'\x20' <= ch <= u'\x7E'):
+ if (ch == u'\x85' or u'\xA0' <= ch <= u'\uD7FF'
+ or u'\uE000' <= ch <= u'\uFFFD') and ch != u'\uFEFF':
+ unicode_characters = True
+ if not self.allow_unicode:
+ special_characters = True
+ else:
+ special_characters = True
+
+ # Detect important whitespace combinations.
+ if ch == u' ':
+ if index == 0:
+ leading_space = True
+ if index == len(scalar)-1:
+ trailing_space = True
+ if previous_break:
+ break_space = True
+ previous_space = True
+ previous_break = False
+ elif ch in u'\n\x85\u2028\u2029':
+ if index == 0:
+ leading_break = True
+ if index == len(scalar)-1:
+ trailing_break = True
+ if previous_space:
+ space_break = True
+ previous_space = False
+ previous_break = True
+ else:
+ previous_space = False
+ previous_break = False
+
+ # Prepare for the next character.
+ index += 1
+ preceeded_by_whitespace = (ch in u'\0 \t\r\n\x85\u2028\u2029')
+ followed_by_whitespace = (index+1 >= len(scalar) or
+ scalar[index+1] in u'\0 \t\r\n\x85\u2028\u2029')
+
+ # Let's decide what styles are allowed.
+ allow_flow_plain = True
+ allow_block_plain = True
+ allow_single_quoted = True
+ allow_double_quoted = True
+ allow_block = True
+
+ # Leading and trailing whitespaces are bad for plain scalars.
+ if (leading_space or leading_break
+ or trailing_space or trailing_break):
+ allow_flow_plain = allow_block_plain = False
+
+ # We do not permit trailing spaces for block scalars.
+ if trailing_space:
+ allow_block = False
+
+ # Spaces at the beginning of a new line are only acceptable for block
+ # scalars.
+ if break_space:
+ allow_flow_plain = allow_block_plain = allow_single_quoted = False
+
+ # Spaces followed by breaks, as well as special character are only
+ # allowed for double quoted scalars.
+ if space_break or special_characters:
+ allow_flow_plain = allow_block_plain = \
+ allow_single_quoted = allow_block = False
+
+ # Although the plain scalar writer supports breaks, we never emit
+ # multiline plain scalars.
+ if line_breaks:
+ allow_flow_plain = allow_block_plain = False
+
+ # Flow indicators are forbidden for flow plain scalars.
+ if flow_indicators:
+ allow_flow_plain = False
+
+ # Block indicators are forbidden for block plain scalars.
+ if block_indicators:
+ allow_block_plain = False
+
+ return ScalarAnalysis(scalar=scalar,
+ empty=False, multiline=line_breaks,
+ allow_flow_plain=allow_flow_plain,
+ allow_block_plain=allow_block_plain,
+ allow_single_quoted=allow_single_quoted,
+ allow_double_quoted=allow_double_quoted,
+ allow_block=allow_block)
+
+ # Writers.
+
+ def flush_stream(self):
+ if hasattr(self.stream, 'flush'):
+ self.stream.flush()
+
+ def write_stream_start(self):
+ # Write BOM if needed.
+ if self.encoding and self.encoding.startswith('utf-16'):
+ self.stream.write(u'\uFEFF'.encode(self.encoding))
+
+ def write_stream_end(self):
+ self.flush_stream()
+
+ def write_indicator(self, indicator, need_whitespace,
+ whitespace=False, indention=False):
+ if self.whitespace or not need_whitespace:
+ data = indicator
+ else:
+ data = u' '+indicator
+ self.whitespace = whitespace
+ self.indention = self.indention and indention
+ self.column += len(data)
+ self.open_ended = False
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+
+ def write_indent(self):
+ indent = self.indent or 0
+ if not self.indention or self.column > indent \
+ or (self.column == indent and not self.whitespace):
+ self.write_line_break()
+ if self.column < indent:
+ self.whitespace = True
+ data = u' '*(indent-self.column)
+ self.column = indent
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+
+ def write_line_break(self, data=None):
+ if data is None:
+ data = self.best_line_break
+ self.whitespace = True
+ self.indention = True
+ self.line += 1
+ self.column = 0
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+
+ def write_version_directive(self, version_text):
+ data = u'%%YAML %s' % version_text
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ self.write_line_break()
+
+ def write_tag_directive(self, handle_text, prefix_text):
+ data = u'%%TAG %s %s' % (handle_text, prefix_text)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ self.write_line_break()
+
+ # Scalar streams.
+
+ def write_single_quoted(self, text, split=True):
+ self.write_indicator(u'\'', True)
+ spaces = False
+ breaks = False
+ start = end = 0
+ while end <= len(text):
+ ch = None
+ if end < len(text):
+ ch = text[end]
+ if spaces:
+ if ch is None or ch != u' ':
+ if start+1 == end and self.column > self.best_width and split \
+ and start != 0 and end != len(text):
+ self.write_indent()
+ else:
+ data = text[start:end]
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ start = end
+ elif breaks:
+ if ch is None or ch not in u'\n\x85\u2028\u2029':
+ if text[start] == u'\n':
+ self.write_line_break()
+ for br in text[start:end]:
+ if br == u'\n':
+ self.write_line_break()
+ else:
+ self.write_line_break(br)
+ self.write_indent()
+ start = end
+ else:
+ if ch is None or ch in u' \n\x85\u2028\u2029' or ch == u'\'':
+ if start < end:
+ data = text[start:end]
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ start = end
+ if ch == u'\'':
+ data = u'\'\''
+ self.column += 2
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ start = end + 1
+ if ch is not None:
+ spaces = (ch == u' ')
+ breaks = (ch in u'\n\x85\u2028\u2029')
+ end += 1
+ self.write_indicator(u'\'', False)
+
+ ESCAPE_REPLACEMENTS = {
+ u'\0': u'0',
+ u'\x07': u'a',
+ u'\x08': u'b',
+ u'\x09': u't',
+ u'\x0A': u'n',
+ u'\x0B': u'v',
+ u'\x0C': u'f',
+ u'\x0D': u'r',
+ u'\x1B': u'e',
+ u'\"': u'\"',
+ u'\\': u'\\',
+ u'\x85': u'N',
+ u'\xA0': u'_',
+ u'\u2028': u'L',
+ u'\u2029': u'P',
+ }
+
+ def write_double_quoted(self, text, split=True):
+ self.write_indicator(u'"', True)
+ start = end = 0
+ while end <= len(text):
+ ch = None
+ if end < len(text):
+ ch = text[end]
+ if ch is None or ch in u'"\\\x85\u2028\u2029\uFEFF' \
+ or not (u'\x20' <= ch <= u'\x7E'
+ or (self.allow_unicode
+ and (u'\xA0' <= ch <= u'\uD7FF'
+ or u'\uE000' <= ch <= u'\uFFFD'))):
+ if start < end:
+ data = text[start:end]
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ start = end
+ if ch is not None:
+ if ch in self.ESCAPE_REPLACEMENTS:
+ data = u'\\'+self.ESCAPE_REPLACEMENTS[ch]
+ elif ch <= u'\xFF':
+ data = u'\\x%02X' % ord(ch)
+ elif ch <= u'\uFFFF':
+ data = u'\\u%04X' % ord(ch)
+ else:
+ data = u'\\U%08X' % ord(ch)
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ start = end+1
+ if 0 < end < len(text)-1 and (ch == u' ' or start >= end) \
+ and self.column+(end-start) > self.best_width and split:
+ data = text[start:end]+u'\\'
+ if start < end:
+ start = end
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ self.write_indent()
+ self.whitespace = False
+ self.indention = False
+ if text[start] == u' ':
+ data = u'\\'
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ end += 1
+ self.write_indicator(u'"', False)
+
+ def determine_block_hints(self, text):
+ hints = u''
+ if text:
+ if text[0] in u' \n\x85\u2028\u2029':
+ hints += unicode(self.best_indent)
+ if text[-1] not in u'\n\x85\u2028\u2029':
+ hints += u'-'
+ elif len(text) == 1 or text[-2] in u'\n\x85\u2028\u2029':
+ hints += u'+'
+ return hints
+
+ def write_folded(self, text):
+ hints = self.determine_block_hints(text)
+ self.write_indicator(u'>'+hints, True)
+ if hints[-1:] == u'+':
+ self.open_ended = True
+ self.write_line_break()
+ leading_space = True
+ spaces = False
+ breaks = True
+ start = end = 0
+ while end <= len(text):
+ ch = None
+ if end < len(text):
+ ch = text[end]
+ if breaks:
+ if ch is None or ch not in u'\n\x85\u2028\u2029':
+ if not leading_space and ch is not None and ch != u' ' \
+ and text[start] == u'\n':
+ self.write_line_break()
+ leading_space = (ch == u' ')
+ for br in text[start:end]:
+ if br == u'\n':
+ self.write_line_break()
+ else:
+ self.write_line_break(br)
+ if ch is not None:
+ self.write_indent()
+ start = end
+ elif spaces:
+ if ch != u' ':
+ if start+1 == end and self.column > self.best_width:
+ self.write_indent()
+ else:
+ data = text[start:end]
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ start = end
+ else:
+ if ch is None or ch in u' \n\x85\u2028\u2029':
+ data = text[start:end]
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ if ch is None:
+ self.write_line_break()
+ start = end
+ if ch is not None:
+ breaks = (ch in u'\n\x85\u2028\u2029')
+ spaces = (ch == u' ')
+ end += 1
+
+ def write_literal(self, text):
+ hints = self.determine_block_hints(text)
+ self.write_indicator(u'|'+hints, True)
+ if hints[-1:] == u'+':
+ self.open_ended = True
+ self.write_line_break()
+ breaks = True
+ start = end = 0
+ while end <= len(text):
+ ch = None
+ if end < len(text):
+ ch = text[end]
+ if breaks:
+ if ch is None or ch not in u'\n\x85\u2028\u2029':
+ for br in text[start:end]:
+ if br == u'\n':
+ self.write_line_break()
+ else:
+ self.write_line_break(br)
+ if ch is not None:
+ self.write_indent()
+ start = end
+ else:
+ if ch is None or ch in u'\n\x85\u2028\u2029':
+ data = text[start:end]
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ if ch is None:
+ self.write_line_break()
+ start = end
+ if ch is not None:
+ breaks = (ch in u'\n\x85\u2028\u2029')
+ end += 1
+
+ def write_plain(self, text, split=True):
+ if self.root_context:
+ self.open_ended = True
+ if not text:
+ return
+ if not self.whitespace:
+ data = u' '
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ self.whitespace = False
+ self.indention = False
+ spaces = False
+ breaks = False
+ start = end = 0
+ while end <= len(text):
+ ch = None
+ if end < len(text):
+ ch = text[end]
+ if spaces:
+ if ch != u' ':
+ if start+1 == end and self.column > self.best_width and split:
+ self.write_indent()
+ self.whitespace = False
+ self.indention = False
+ else:
+ data = text[start:end]
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ start = end
+ elif breaks:
+ if ch not in u'\n\x85\u2028\u2029':
+ if text[start] == u'\n':
+ self.write_line_break()
+ for br in text[start:end]:
+ if br == u'\n':
+ self.write_line_break()
+ else:
+ self.write_line_break(br)
+ self.write_indent()
+ self.whitespace = False
+ self.indention = False
+ start = end
+ else:
+ if ch is None or ch in u' \n\x85\u2028\u2029':
+ data = text[start:end]
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ start = end
+ if ch is not None:
+ spaces = (ch == u' ')
+ breaks = (ch in u'\n\x85\u2028\u2029')
+ end += 1
+
diff --git a/python.d/python_modules/pyyaml2/error.py b/python.d/python_modules/pyyaml2/error.py
new file mode 100644
index 000000000..577686db5
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/error.py
@@ -0,0 +1,75 @@
+
+__all__ = ['Mark', 'YAMLError', 'MarkedYAMLError']
+
+class Mark(object):
+
+ def __init__(self, name, index, line, column, buffer, pointer):
+ self.name = name
+ self.index = index
+ self.line = line
+ self.column = column
+ self.buffer = buffer
+ self.pointer = pointer
+
+ def get_snippet(self, indent=4, max_length=75):
+ if self.buffer is None:
+ return None
+ head = ''
+ start = self.pointer
+ while start > 0 and self.buffer[start-1] not in u'\0\r\n\x85\u2028\u2029':
+ start -= 1
+ if self.pointer-start > max_length/2-1:
+ head = ' ... '
+ start += 5
+ break
+ tail = ''
+ end = self.pointer
+ while end < len(self.buffer) and self.buffer[end] not in u'\0\r\n\x85\u2028\u2029':
+ end += 1
+ if end-self.pointer > max_length/2-1:
+ tail = ' ... '
+ end -= 5
+ break
+ snippet = self.buffer[start:end].encode('utf-8')
+ return ' '*indent + head + snippet + tail + '\n' \
+ + ' '*(indent+self.pointer-start+len(head)) + '^'
+
+ def __str__(self):
+ snippet = self.get_snippet()
+ where = " in \"%s\", line %d, column %d" \
+ % (self.name, self.line+1, self.column+1)
+ if snippet is not None:
+ where += ":\n"+snippet
+ return where
+
+class YAMLError(Exception):
+ pass
+
+class MarkedYAMLError(YAMLError):
+
+ def __init__(self, context=None, context_mark=None,
+ problem=None, problem_mark=None, note=None):
+ self.context = context
+ self.context_mark = context_mark
+ self.problem = problem
+ self.problem_mark = problem_mark
+ self.note = note
+
+ def __str__(self):
+ lines = []
+ if self.context is not None:
+ lines.append(self.context)
+ if self.context_mark is not None \
+ and (self.problem is None or self.problem_mark is None
+ or self.context_mark.name != self.problem_mark.name
+ or self.context_mark.line != self.problem_mark.line
+ or self.context_mark.column != self.problem_mark.column):
+ lines.append(str(self.context_mark))
+ if self.problem is not None:
+ lines.append(self.problem)
+ if self.problem_mark is not None:
+ lines.append(str(self.problem_mark))
+ if self.note is not None:
+ lines.append(self.note)
+ return '\n'.join(lines)
+
diff --git a/python.d/python_modules/pyyaml2/events.py b/python.d/python_modules/pyyaml2/events.py
new file mode 100644
index 000000000..f79ad389c
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/events.py
@@ -0,0 +1,86 @@
+
+# Abstract classes.
+
+class Event(object):
+ def __init__(self, start_mark=None, end_mark=None):
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ def __repr__(self):
+ attributes = [key for key in ['anchor', 'tag', 'implicit', 'value']
+ if hasattr(self, key)]
+ arguments = ', '.join(['%s=%r' % (key, getattr(self, key))
+ for key in attributes])
+ return '%s(%s)' % (self.__class__.__name__, arguments)
+
+class NodeEvent(Event):
+ def __init__(self, anchor, start_mark=None, end_mark=None):
+ self.anchor = anchor
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+
+class CollectionStartEvent(NodeEvent):
+ def __init__(self, anchor, tag, implicit, start_mark=None, end_mark=None,
+ flow_style=None):
+ self.anchor = anchor
+ self.tag = tag
+ self.implicit = implicit
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.flow_style = flow_style
+
+class CollectionEndEvent(Event):
+ pass
+
+# Implementations.
+
+class StreamStartEvent(Event):
+ def __init__(self, start_mark=None, end_mark=None, encoding=None):
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.encoding = encoding
+
+class StreamEndEvent(Event):
+ pass
+
+class DocumentStartEvent(Event):
+ def __init__(self, start_mark=None, end_mark=None,
+ explicit=None, version=None, tags=None):
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.explicit = explicit
+ self.version = version
+ self.tags = tags
+
+class DocumentEndEvent(Event):
+ def __init__(self, start_mark=None, end_mark=None,
+ explicit=None):
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.explicit = explicit
+
+class AliasEvent(NodeEvent):
+ pass
+
+class ScalarEvent(NodeEvent):
+ def __init__(self, anchor, tag, implicit, value,
+ start_mark=None, end_mark=None, style=None):
+ self.anchor = anchor
+ self.tag = tag
+ self.implicit = implicit
+ self.value = value
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.style = style
+
+class SequenceStartEvent(CollectionStartEvent):
+ pass
+
+class SequenceEndEvent(CollectionEndEvent):
+ pass
+
+class MappingStartEvent(CollectionStartEvent):
+ pass
+
+class MappingEndEvent(CollectionEndEvent):
+ pass
+
diff --git a/python.d/python_modules/pyyaml2/loader.py b/python.d/python_modules/pyyaml2/loader.py
new file mode 100644
index 000000000..293ff467b
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/loader.py
@@ -0,0 +1,40 @@
+
+__all__ = ['BaseLoader', 'SafeLoader', 'Loader']
+
+from reader import *
+from scanner import *
+from parser import *
+from composer import *
+from constructor import *
+from resolver import *
+
+class BaseLoader(Reader, Scanner, Parser, Composer, BaseConstructor, BaseResolver):
+
+ def __init__(self, stream):
+ Reader.__init__(self, stream)
+ Scanner.__init__(self)
+ Parser.__init__(self)
+ Composer.__init__(self)
+ BaseConstructor.__init__(self)
+ BaseResolver.__init__(self)
+
+class SafeLoader(Reader, Scanner, Parser, Composer, SafeConstructor, Resolver):
+
+ def __init__(self, stream):
+ Reader.__init__(self, stream)
+ Scanner.__init__(self)
+ Parser.__init__(self)
+ Composer.__init__(self)
+ SafeConstructor.__init__(self)
+ Resolver.__init__(self)
+
+class Loader(Reader, Scanner, Parser, Composer, Constructor, Resolver):
+
+ def __init__(self, stream):
+ Reader.__init__(self, stream)
+ Scanner.__init__(self)
+ Parser.__init__(self)
+ Composer.__init__(self)
+ Constructor.__init__(self)
+ Resolver.__init__(self)
+
diff --git a/python.d/python_modules/pyyaml2/nodes.py b/python.d/python_modules/pyyaml2/nodes.py
new file mode 100644
index 000000000..c4f070c41
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/nodes.py
@@ -0,0 +1,49 @@
+
+class Node(object):
+ def __init__(self, tag, value, start_mark, end_mark):
+ self.tag = tag
+ self.value = value
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ def __repr__(self):
+ value = self.value
+ #if isinstance(value, list):
+ # if len(value) == 0:
+ # value = '<empty>'
+ # elif len(value) == 1:
+ # value = '<1 item>'
+ # else:
+ # value = '<%d items>' % len(value)
+ #else:
+ # if len(value) > 75:
+ # value = repr(value[:70]+u' ... ')
+ # else:
+ # value = repr(value)
+ value = repr(value)
+ return '%s(tag=%r, value=%s)' % (self.__class__.__name__, self.tag, value)
+
+class ScalarNode(Node):
+ id = 'scalar'
+ def __init__(self, tag, value,
+ start_mark=None, end_mark=None, style=None):
+ self.tag = tag
+ self.value = value
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.style = style
+
+class CollectionNode(Node):
+ def __init__(self, tag, value,
+ start_mark=None, end_mark=None, flow_style=None):
+ self.tag = tag
+ self.value = value
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.flow_style = flow_style
+
+class SequenceNode(CollectionNode):
+ id = 'sequence'
+
+class MappingNode(CollectionNode):
+ id = 'mapping'
+
diff --git a/python.d/python_modules/pyyaml2/parser.py b/python.d/python_modules/pyyaml2/parser.py
new file mode 100644
index 000000000..f9e3057f3
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/parser.py
@@ -0,0 +1,589 @@
+
+# The following YAML grammar is LL(1) and is parsed by a recursive descent
+# parser.
+#
+# stream ::= STREAM-START implicit_document? explicit_document* STREAM-END
+# implicit_document ::= block_node DOCUMENT-END*
+# explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+# block_node_or_indentless_sequence ::=
+# ALIAS
+# | properties (block_content | indentless_block_sequence)?
+# | block_content
+# | indentless_block_sequence
+# block_node ::= ALIAS
+# | properties block_content?
+# | block_content
+# flow_node ::= ALIAS
+# | properties flow_content?
+# | flow_content
+# properties ::= TAG ANCHOR? | ANCHOR TAG?
+# block_content ::= block_collection | flow_collection | SCALAR
+# flow_content ::= flow_collection | SCALAR
+# block_collection ::= block_sequence | block_mapping
+# flow_collection ::= flow_sequence | flow_mapping
+# block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
+# indentless_sequence ::= (BLOCK-ENTRY block_node?)+
+# block_mapping ::= BLOCK-MAPPING_START
+# ((KEY block_node_or_indentless_sequence?)?
+# (VALUE block_node_or_indentless_sequence?)?)*
+# BLOCK-END
+# flow_sequence ::= FLOW-SEQUENCE-START
+# (flow_sequence_entry FLOW-ENTRY)*
+# flow_sequence_entry?
+# FLOW-SEQUENCE-END
+# flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+# flow_mapping ::= FLOW-MAPPING-START
+# (flow_mapping_entry FLOW-ENTRY)*
+# flow_mapping_entry?
+# FLOW-MAPPING-END
+# flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+#
+# FIRST sets:
+#
+# stream: { STREAM-START }
+# explicit_document: { DIRECTIVE DOCUMENT-START }
+# implicit_document: FIRST(block_node)
+# block_node: { ALIAS TAG ANCHOR SCALAR BLOCK-SEQUENCE-START BLOCK-MAPPING-START FLOW-SEQUENCE-START FLOW-MAPPING-START }
+# flow_node: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START FLOW-MAPPING-START }
+# block_content: { BLOCK-SEQUENCE-START BLOCK-MAPPING-START FLOW-SEQUENCE-START FLOW-MAPPING-START SCALAR }
+# flow_content: { FLOW-SEQUENCE-START FLOW-MAPPING-START SCALAR }
+# block_collection: { BLOCK-SEQUENCE-START BLOCK-MAPPING-START }
+# flow_collection: { FLOW-SEQUENCE-START FLOW-MAPPING-START }
+# block_sequence: { BLOCK-SEQUENCE-START }
+# block_mapping: { BLOCK-MAPPING-START }
+# block_node_or_indentless_sequence: { ALIAS ANCHOR TAG SCALAR BLOCK-SEQUENCE-START BLOCK-MAPPING-START FLOW-SEQUENCE-START FLOW-MAPPING-START BLOCK-ENTRY }
+# indentless_sequence: { ENTRY }
+# flow_collection: { FLOW-SEQUENCE-START FLOW-MAPPING-START }
+# flow_sequence: { FLOW-SEQUENCE-START }
+# flow_mapping: { FLOW-MAPPING-START }
+# flow_sequence_entry: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START FLOW-MAPPING-START KEY }
+# flow_mapping_entry: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START FLOW-MAPPING-START KEY }
+
+__all__ = ['Parser', 'ParserError']
+
+from error import MarkedYAMLError
+from tokens import *
+from events import *
+from scanner import *
+
+class ParserError(MarkedYAMLError):
+ pass
+
+class Parser(object):
+ # Since writing a recursive-descendant parser is a straightforward task, we
+ # do not give many comments here.
+
+ DEFAULT_TAGS = {
+ u'!': u'!',
+ u'!!': u'tag:yaml.org,2002:',
+ }
+
+ def __init__(self):
+ self.current_event = None
+ self.yaml_version = None
+ self.tag_handles = {}
+ self.states = []
+ self.marks = []
+ self.state = self.parse_stream_start
+
+ def dispose(self):
+ # Reset the state attributes (to clear self-references)
+ self.states = []
+ self.state = None
+
+ def check_event(self, *choices):
+ # Check the type of the next event.
+ if self.current_event is None:
+ if self.state:
+ self.current_event = self.state()
+ if self.current_event is not None:
+ if not choices:
+ return True
+ for choice in choices:
+ if isinstance(self.current_event, choice):
+ return True
+ return False
+
+ def peek_event(self):
+ # Get the next event.
+ if self.current_event is None:
+ if self.state:
+ self.current_event = self.state()
+ return self.current_event
+
+ def get_event(self):
+ # Get the next event and proceed further.
+ if self.current_event is None:
+ if self.state:
+ self.current_event = self.state()
+ value = self.current_event
+ self.current_event = None
+ return value
+
+ # stream ::= STREAM-START implicit_document? explicit_document* STREAM-END
+ # implicit_document ::= block_node DOCUMENT-END*
+ # explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+
+ def parse_stream_start(self):
+
+ # Parse the stream start.
+ token = self.get_token()
+ event = StreamStartEvent(token.start_mark, token.end_mark,
+ encoding=token.encoding)
+
+ # Prepare the next state.
+ self.state = self.parse_implicit_document_start
+
+ return event
+
+ def parse_implicit_document_start(self):
+
+ # Parse an implicit document.
+ if not self.check_token(DirectiveToken, DocumentStartToken,
+ StreamEndToken):
+ self.tag_handles = self.DEFAULT_TAGS
+ token = self.peek_token()
+ start_mark = end_mark = token.start_mark
+ event = DocumentStartEvent(start_mark, end_mark,
+ explicit=False)
+
+ # Prepare the next state.
+ self.states.append(self.parse_document_end)
+ self.state = self.parse_block_node
+
+ return event
+
+ else:
+ return self.parse_document_start()
+
+ def parse_document_start(self):
+
+ # Parse any extra document end indicators.
+ while self.check_token(DocumentEndToken):
+ self.get_token()
+
+ # Parse an explicit document.
+ if not self.check_token(StreamEndToken):
+ token = self.peek_token()
+ start_mark = token.start_mark
+ version, tags = self.process_directives()
+ if not self.check_token(DocumentStartToken):
+ raise ParserError(None, None,
+ "expected '<document start>', but found %r"
+ % self.peek_token().id,
+ self.peek_token().start_mark)
+ token = self.get_token()
+ end_mark = token.end_mark
+ event = DocumentStartEvent(start_mark, end_mark,
+ explicit=True, version=version, tags=tags)
+ self.states.append(self.parse_document_end)
+ self.state = self.parse_document_content
+ else:
+ # Parse the end of the stream.
+ token = self.get_token()
+ event = StreamEndEvent(token.start_mark, token.end_mark)
+ assert not self.states
+ assert not self.marks
+ self.state = None
+ return event
+
+ def parse_document_end(self):
+
+ # Parse the document end.
+ token = self.peek_token()
+ start_mark = end_mark = token.start_mark
+ explicit = False
+ if self.check_token(DocumentEndToken):
+ token = self.get_token()
+ end_mark = token.end_mark
+ explicit = True
+ event = DocumentEndEvent(start_mark, end_mark,
+ explicit=explicit)
+
+ # Prepare the next state.
+ self.state = self.parse_document_start
+
+ return event
+
+ def parse_document_content(self):
+ if self.check_token(DirectiveToken,
+ DocumentStartToken, DocumentEndToken, StreamEndToken):
+ event = self.process_empty_scalar(self.peek_token().start_mark)
+ self.state = self.states.pop()
+ return event
+ else:
+ return self.parse_block_node()
+
+ def process_directives(self):
+ self.yaml_version = None
+ self.tag_handles = {}
+ while self.check_token(DirectiveToken):
+ token = self.get_token()
+ if token.name == u'YAML':
+ if self.yaml_version is not None:
+ raise ParserError(None, None,
+ "found duplicate YAML directive", token.start_mark)
+ major, minor = token.value
+ if major != 1:
+ raise ParserError(None, None,
+ "found incompatible YAML document (version 1.* is required)",
+ token.start_mark)
+ self.yaml_version = token.value
+ elif token.name == u'TAG':
+ handle, prefix = token.value
+ if handle in self.tag_handles:
+ raise ParserError(None, None,
+ "duplicate tag handle %r" % handle.encode('utf-8'),
+ token.start_mark)
+ self.tag_handles[handle] = prefix
+ if self.tag_handles:
+ value = self.yaml_version, self.tag_handles.copy()
+ else:
+ value = self.yaml_version, None
+ for key in self.DEFAULT_TAGS:
+ if key not in self.tag_handles:
+ self.tag_handles[key] = self.DEFAULT_TAGS[key]
+ return value
+
+ # block_node_or_indentless_sequence ::= ALIAS
+ # | properties (block_content | indentless_block_sequence)?
+ # | block_content
+ # | indentless_block_sequence
+ # block_node ::= ALIAS
+ # | properties block_content?
+ # | block_content
+ # flow_node ::= ALIAS
+ # | properties flow_content?
+ # | flow_content
+ # properties ::= TAG ANCHOR? | ANCHOR TAG?
+ # block_content ::= block_collection | flow_collection | SCALAR
+ # flow_content ::= flow_collection | SCALAR
+ # block_collection ::= block_sequence | block_mapping
+ # flow_collection ::= flow_sequence | flow_mapping
+
+ def parse_block_node(self):
+ return self.parse_node(block=True)
+
+ def parse_flow_node(self):
+ return self.parse_node()
+
+ def parse_block_node_or_indentless_sequence(self):
+ return self.parse_node(block=True, indentless_sequence=True)
+
+ def parse_node(self, block=False, indentless_sequence=False):
+ if self.check_token(AliasToken):
+ token = self.get_token()
+ event = AliasEvent(token.value, token.start_mark, token.end_mark)
+ self.state = self.states.pop()
+ else:
+ anchor = None
+ tag = None
+ start_mark = end_mark = tag_mark = None
+ if self.check_token(AnchorToken):
+ token = self.get_token()
+ start_mark = token.start_mark
+ end_mark = token.end_mark
+ anchor = token.value
+ if self.check_token(TagToken):
+ token = self.get_token()
+ tag_mark = token.start_mark
+ end_mark = token.end_mark
+ tag = token.value
+ elif self.check_token(TagToken):
+ token = self.get_token()
+ start_mark = tag_mark = token.start_mark
+ end_mark = token.end_mark
+ tag = token.value
+ if self.check_token(AnchorToken):
+ token = self.get_token()
+ end_mark = token.end_mark
+ anchor = token.value
+ if tag is not None:
+ handle, suffix = tag
+ if handle is not None:
+ if handle not in self.tag_handles:
+ raise ParserError("while parsing a node", start_mark,
+ "found undefined tag handle %r" % handle.encode('utf-8'),
+ tag_mark)
+ tag = self.tag_handles[handle]+suffix
+ else:
+ tag = suffix
+ #if tag == u'!':
+ # raise ParserError("while parsing a node", start_mark,
+ # "found non-specific tag '!'", tag_mark,
+ # "Please check 'http://pyyaml.org/wiki/YAMLNonSpecificTag' and share your opinion.")
+ if start_mark is None:
+ start_mark = end_mark = self.peek_token().start_mark
+ event = None
+ implicit = (tag is None or tag == u'!')
+ if indentless_sequence and self.check_token(BlockEntryToken):
+ end_mark = self.peek_token().end_mark
+ event = SequenceStartEvent(anchor, tag, implicit,
+ start_mark, end_mark)
+ self.state = self.parse_indentless_sequence_entry
+ else:
+ if self.check_token(ScalarToken):
+ token = self.get_token()
+ end_mark = token.end_mark
+ if (token.plain and tag is None) or tag == u'!':
+ implicit = (True, False)
+ elif tag is None:
+ implicit = (False, True)
+ else:
+ implicit = (False, False)
+ event = ScalarEvent(anchor, tag, implicit, token.value,
+ start_mark, end_mark, style=token.style)
+ self.state = self.states.pop()
+ elif self.check_token(FlowSequenceStartToken):
+ end_mark = self.peek_token().end_mark
+ event = SequenceStartEvent(anchor, tag, implicit,
+ start_mark, end_mark, flow_style=True)
+ self.state = self.parse_flow_sequence_first_entry
+ elif self.check_token(FlowMappingStartToken):
+ end_mark = self.peek_token().end_mark
+ event = MappingStartEvent(anchor, tag, implicit,
+ start_mark, end_mark, flow_style=True)
+ self.state = self.parse_flow_mapping_first_key
+ elif block and self.check_token(BlockSequenceStartToken):
+ end_mark = self.peek_token().start_mark
+ event = SequenceStartEvent(anchor, tag, implicit,
+ start_mark, end_mark, flow_style=False)
+ self.state = self.parse_block_sequence_first_entry
+ elif block and self.check_token(BlockMappingStartToken):
+ end_mark = self.peek_token().start_mark
+ event = MappingStartEvent(anchor, tag, implicit,
+ start_mark, end_mark, flow_style=False)
+ self.state = self.parse_block_mapping_first_key
+ elif anchor is not None or tag is not None:
+ # Empty scalars are allowed even if a tag or an anchor is
+ # specified.
+ event = ScalarEvent(anchor, tag, (implicit, False), u'',
+ start_mark, end_mark)
+ self.state = self.states.pop()
+ else:
+ if block:
+ node = 'block'
+ else:
+ node = 'flow'
+ token = self.peek_token()
+ raise ParserError("while parsing a %s node" % node, start_mark,
+ "expected the node content, but found %r" % token.id,
+ token.start_mark)
+ return event
+
+ # block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
+
+ def parse_block_sequence_first_entry(self):
+ token = self.get_token()
+ self.marks.append(token.start_mark)
+ return self.parse_block_sequence_entry()
+
+ def parse_block_sequence_entry(self):
+ if self.check_token(BlockEntryToken):
+ token = self.get_token()
+ if not self.check_token(BlockEntryToken, BlockEndToken):
+ self.states.append(self.parse_block_sequence_entry)
+ return self.parse_block_node()
+ else:
+ self.state = self.parse_block_sequence_entry
+ return self.process_empty_scalar(token.end_mark)
+ if not self.check_token(BlockEndToken):
+ token = self.peek_token()
+ raise ParserError("while parsing a block collection", self.marks[-1],
+ "expected <block end>, but found %r" % token.id, token.start_mark)
+ token = self.get_token()
+ event = SequenceEndEvent(token.start_mark, token.end_mark)
+ self.state = self.states.pop()
+ self.marks.pop()
+ return event
+
+ # indentless_sequence ::= (BLOCK-ENTRY block_node?)+
+
+ def parse_indentless_sequence_entry(self):
+ if self.check_token(BlockEntryToken):
+ token = self.get_token()
+ if not self.check_token(BlockEntryToken,
+ KeyToken, ValueToken, BlockEndToken):
+ self.states.append(self.parse_indentless_sequence_entry)
+ return self.parse_block_node()
+ else:
+ self.state = self.parse_indentless_sequence_entry
+ return self.process_empty_scalar(token.end_mark)
+ token = self.peek_token()
+ event = SequenceEndEvent(token.start_mark, token.start_mark)
+ self.state = self.states.pop()
+ return event
+
+ # block_mapping ::= BLOCK-MAPPING_START
+ # ((KEY block_node_or_indentless_sequence?)?
+ # (VALUE block_node_or_indentless_sequence?)?)*
+ # BLOCK-END
+
+ def parse_block_mapping_first_key(self):
+ token = self.get_token()
+ self.marks.append(token.start_mark)
+ return self.parse_block_mapping_key()
+
+ def parse_block_mapping_key(self):
+ if self.check_token(KeyToken):
+ token = self.get_token()
+ if not self.check_token(KeyToken, ValueToken, BlockEndToken):
+ self.states.append(self.parse_block_mapping_value)
+ return self.parse_block_node_or_indentless_sequence()
+ else:
+ self.state = self.parse_block_mapping_value
+ return self.process_empty_scalar(token.end_mark)
+ if not self.check_token(BlockEndToken):
+ token = self.peek_token()
+ raise ParserError("while parsing a block mapping", self.marks[-1],
+ "expected <block end>, but found %r" % token.id, token.start_mark)
+ token = self.get_token()
+ event = MappingEndEvent(token.start_mark, token.end_mark)
+ self.state = self.states.pop()
+ self.marks.pop()
+ return event
+
+ def parse_block_mapping_value(self):
+ if self.check_token(ValueToken):
+ token = self.get_token()
+ if not self.check_token(KeyToken, ValueToken, BlockEndToken):
+ self.states.append(self.parse_block_mapping_key)
+ return self.parse_block_node_or_indentless_sequence()
+ else:
+ self.state = self.parse_block_mapping_key
+ return self.process_empty_scalar(token.end_mark)
+ else:
+ self.state = self.parse_block_mapping_key
+ token = self.peek_token()
+ return self.process_empty_scalar(token.start_mark)
+
+ # flow_sequence ::= FLOW-SEQUENCE-START
+ # (flow_sequence_entry FLOW-ENTRY)*
+ # flow_sequence_entry?
+ # FLOW-SEQUENCE-END
+ # flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+ #
+ # Note that while production rules for both flow_sequence_entry and
+ # flow_mapping_entry are equal, their interpretations are different.
+ # For `flow_sequence_entry`, the part `KEY flow_node? (VALUE flow_node?)?`
+ # generate an inline mapping (set syntax).
+
+ def parse_flow_sequence_first_entry(self):
+ token = self.get_token()
+ self.marks.append(token.start_mark)
+ return self.parse_flow_sequence_entry(first=True)
+
+ def parse_flow_sequence_entry(self, first=False):
+ if not self.check_token(FlowSequenceEndToken):
+ if not first:
+ if self.check_token(FlowEntryToken):
+ self.get_token()
+ else:
+ token = self.peek_token()
+ raise ParserError("while parsing a flow sequence", self.marks[-1],
+ "expected ',' or ']', but got %r" % token.id, token.start_mark)
+
+ if self.check_token(KeyToken):
+ token = self.peek_token()
+ event = MappingStartEvent(None, None, True,
+ token.start_mark, token.end_mark,
+ flow_style=True)
+ self.state = self.parse_flow_sequence_entry_mapping_key
+ return event
+ elif not self.check_token(FlowSequenceEndToken):
+ self.states.append(self.parse_flow_sequence_entry)
+ return self.parse_flow_node()
+ token = self.get_token()
+ event = SequenceEndEvent(token.start_mark, token.end_mark)
+ self.state = self.states.pop()
+ self.marks.pop()
+ return event
+
+ def parse_flow_sequence_entry_mapping_key(self):
+ token = self.get_token()
+ if not self.check_token(ValueToken,
+ FlowEntryToken, FlowSequenceEndToken):
+ self.states.append(self.parse_flow_sequence_entry_mapping_value)
+ return self.parse_flow_node()
+ else:
+ self.state = self.parse_flow_sequence_entry_mapping_value
+ return self.process_empty_scalar(token.end_mark)
+
+ def parse_flow_sequence_entry_mapping_value(self):
+ if self.check_token(ValueToken):
+ token = self.get_token()
+ if not self.check_token(FlowEntryToken, FlowSequenceEndToken):
+ self.states.append(self.parse_flow_sequence_entry_mapping_end)
+ return self.parse_flow_node()
+ else:
+ self.state = self.parse_flow_sequence_entry_mapping_end
+ return self.process_empty_scalar(token.end_mark)
+ else:
+ self.state = self.parse_flow_sequence_entry_mapping_end
+ token = self.peek_token()
+ return self.process_empty_scalar(token.start_mark)
+
+ def parse_flow_sequence_entry_mapping_end(self):
+ self.state = self.parse_flow_sequence_entry
+ token = self.peek_token()
+ return MappingEndEvent(token.start_mark, token.start_mark)
+
+ # flow_mapping ::= FLOW-MAPPING-START
+ # (flow_mapping_entry FLOW-ENTRY)*
+ # flow_mapping_entry?
+ # FLOW-MAPPING-END
+ # flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+
+ def parse_flow_mapping_first_key(self):
+ token = self.get_token()
+ self.marks.append(token.start_mark)
+ return self.parse_flow_mapping_key(first=True)
+
+ def parse_flow_mapping_key(self, first=False):
+ if not self.check_token(FlowMappingEndToken):
+ if not first:
+ if self.check_token(FlowEntryToken):
+ self.get_token()
+ else:
+ token = self.peek_token()
+ raise ParserError("while parsing a flow mapping", self.marks[-1],
+ "expected ',' or '}', but got %r" % token.id, token.start_mark)
+ if self.check_token(KeyToken):
+ token = self.get_token()
+ if not self.check_token(ValueToken,
+ FlowEntryToken, FlowMappingEndToken):
+ self.states.append(self.parse_flow_mapping_value)
+ return self.parse_flow_node()
+ else:
+ self.state = self.parse_flow_mapping_value
+ return self.process_empty_scalar(token.end_mark)
+ elif not self.check_token(FlowMappingEndToken):
+ self.states.append(self.parse_flow_mapping_empty_value)
+ return self.parse_flow_node()
+ token = self.get_token()
+ event = MappingEndEvent(token.start_mark, token.end_mark)
+ self.state = self.states.pop()
+ self.marks.pop()
+ return event
+
+ def parse_flow_mapping_value(self):
+ if self.check_token(ValueToken):
+ token = self.get_token()
+ if not self.check_token(FlowEntryToken, FlowMappingEndToken):
+ self.states.append(self.parse_flow_mapping_key)
+ return self.parse_flow_node()
+ else:
+ self.state = self.parse_flow_mapping_key
+ return self.process_empty_scalar(token.end_mark)
+ else:
+ self.state = self.parse_flow_mapping_key
+ token = self.peek_token()
+ return self.process_empty_scalar(token.start_mark)
+
+ def parse_flow_mapping_empty_value(self):
+ self.state = self.parse_flow_mapping_key
+ return self.process_empty_scalar(self.peek_token().start_mark)
+
+ def process_empty_scalar(self, mark):
+ return ScalarEvent(None, None, (True, False), u'', mark, mark)
+
diff --git a/python.d/python_modules/pyyaml2/reader.py b/python.d/python_modules/pyyaml2/reader.py
new file mode 100644
index 000000000..3249e6b9f
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/reader.py
@@ -0,0 +1,190 @@
+# This module contains abstractions for the input stream. You don't have to
+# looks further, there are no pretty code.
+#
+# We define two classes here.
+#
+# Mark(source, line, column)
+# It's just a record and its only use is producing nice error messages.
+# Parser does not use it for any other purposes.
+#
+# Reader(source, data)
+# Reader determines the encoding of `data` and converts it to unicode.
+# Reader provides the following methods and attributes:
+# reader.peek(length=1) - return the next `length` characters
+# reader.forward(length=1) - move the current position to `length` characters.
+# reader.index - the number of the current character.
+# reader.line, stream.column - the line and the column of the current character.
+
+__all__ = ['Reader', 'ReaderError']
+
+from error import YAMLError, Mark
+
+import codecs, re
+
+class ReaderError(YAMLError):
+
+ def __init__(self, name, position, character, encoding, reason):
+ self.name = name
+ self.character = character
+ self.position = position
+ self.encoding = encoding
+ self.reason = reason
+
+ def __str__(self):
+ if isinstance(self.character, str):
+ return "'%s' codec can't decode byte #x%02x: %s\n" \
+ " in \"%s\", position %d" \
+ % (self.encoding, ord(self.character), self.reason,
+ self.name, self.position)
+ else:
+ return "unacceptable character #x%04x: %s\n" \
+ " in \"%s\", position %d" \
+ % (self.character, self.reason,
+ self.name, self.position)
+
+class Reader(object):
+ # Reader:
+ # - determines the data encoding and converts it to unicode,
+ # - checks if characters are in allowed range,
+ # - adds '\0' to the end.
+
+ # Reader accepts
+ # - a `str` object,
+ # - a `unicode` object,
+ # - a file-like object with its `read` method returning `str`,
+ # - a file-like object with its `read` method returning `unicode`.
+
+ # Yeah, it's ugly and slow.
+
+ def __init__(self, stream):
+ self.name = None
+ self.stream = None
+ self.stream_pointer = 0
+ self.eof = True
+ self.buffer = u''
+ self.pointer = 0
+ self.raw_buffer = None
+ self.raw_decode = None
+ self.encoding = None
+ self.index = 0
+ self.line = 0
+ self.column = 0
+ if isinstance(stream, unicode):
+ self.name = "<unicode string>"
+ self.check_printable(stream)
+ self.buffer = stream+u'\0'
+ elif isinstance(stream, str):
+ self.name = "<string>"
+ self.raw_buffer = stream
+ self.determine_encoding()
+ else:
+ self.stream = stream
+ self.name = getattr(stream, 'name', "<file>")
+ self.eof = False
+ self.raw_buffer = ''
+ self.determine_encoding()
+
+ def peek(self, index=0):
+ try:
+ return self.buffer[self.pointer+index]
+ except IndexError:
+ self.update(index+1)
+ return self.buffer[self.pointer+index]
+
+ def prefix(self, length=1):
+ if self.pointer+length >= len(self.buffer):
+ self.update(length)
+ return self.buffer[self.pointer:self.pointer+length]
+
+ def forward(self, length=1):
+ if self.pointer+length+1 >= len(self.buffer):
+ self.update(length+1)
+ while length:
+ ch = self.buffer[self.pointer]
+ self.pointer += 1
+ self.index += 1
+ if ch in u'\n\x85\u2028\u2029' \
+ or (ch == u'\r' and self.buffer[self.pointer] != u'\n'):
+ self.line += 1
+ self.column = 0
+ elif ch != u'\uFEFF':
+ self.column += 1
+ length -= 1
+
+ def get_mark(self):
+ if self.stream is None:
+ return Mark(self.name, self.index, self.line, self.column,
+ self.buffer, self.pointer)
+ else:
+ return Mark(self.name, self.index, self.line, self.column,
+ None, None)
+
+ def determine_encoding(self):
+ while not self.eof and len(self.raw_buffer) < 2:
+ self.update_raw()
+ if not isinstance(self.raw_buffer, unicode):
+ if self.raw_buffer.startswith(codecs.BOM_UTF16_LE):
+ self.raw_decode = codecs.utf_16_le_decode
+ self.encoding = 'utf-16-le'
+ elif self.raw_buffer.startswith(codecs.BOM_UTF16_BE):
+ self.raw_decode = codecs.utf_16_be_decode
+ self.encoding = 'utf-16-be'
+ else:
+ self.raw_decode = codecs.utf_8_decode
+ self.encoding = 'utf-8'
+ self.update(1)
+
+ NON_PRINTABLE = re.compile(u'[^\x09\x0A\x0D\x20-\x7E\x85\xA0-\uD7FF\uE000-\uFFFD]')
+ def check_printable(self, data):
+ match = self.NON_PRINTABLE.search(data)
+ if match:
+ character = match.group()
+ position = self.index+(len(self.buffer)-self.pointer)+match.start()
+ raise ReaderError(self.name, position, ord(character),
+ 'unicode', "special characters are not allowed")
+
+ def update(self, length):
+ if self.raw_buffer is None:
+ return
+ self.buffer = self.buffer[self.pointer:]
+ self.pointer = 0
+ while len(self.buffer) < length:
+ if not self.eof:
+ self.update_raw()
+ if self.raw_decode is not None:
+ try:
+ data, converted = self.raw_decode(self.raw_buffer,
+ 'strict', self.eof)
+ except UnicodeDecodeError, exc:
+ character = exc.object[exc.start]
+ if self.stream is not None:
+ position = self.stream_pointer-len(self.raw_buffer)+exc.start
+ else:
+ position = exc.start
+ raise ReaderError(self.name, position, character,
+ exc.encoding, exc.reason)
+ else:
+ data = self.raw_buffer
+ converted = len(data)
+ self.check_printable(data)
+ self.buffer += data
+ self.raw_buffer = self.raw_buffer[converted:]
+ if self.eof:
+ self.buffer += u'\0'
+ self.raw_buffer = None
+ break
+
+ def update_raw(self, size=1024):
+ data = self.stream.read(size)
+ if data:
+ self.raw_buffer += data
+ self.stream_pointer += len(data)
+ else:
+ self.eof = True
+
+#try:
+# import psyco
+# psyco.bind(Reader)
+#except ImportError:
+# pass
+
diff --git a/python.d/python_modules/pyyaml2/representer.py b/python.d/python_modules/pyyaml2/representer.py
new file mode 100644
index 000000000..5f4fc70db
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/representer.py
@@ -0,0 +1,484 @@
+
+__all__ = ['BaseRepresenter', 'SafeRepresenter', 'Representer',
+ 'RepresenterError']
+
+from error import *
+from nodes import *
+
+import datetime
+
+import sys, copy_reg, types
+
+class RepresenterError(YAMLError):
+ pass
+
+class BaseRepresenter(object):
+
+ yaml_representers = {}
+ yaml_multi_representers = {}
+
+ def __init__(self, default_style=None, default_flow_style=None):
+ self.default_style = default_style
+ self.default_flow_style = default_flow_style
+ self.represented_objects = {}
+ self.object_keeper = []
+ self.alias_key = None
+
+ def represent(self, data):
+ node = self.represent_data(data)
+ self.serialize(node)
+ self.represented_objects = {}
+ self.object_keeper = []
+ self.alias_key = None
+
+ def get_classobj_bases(self, cls):
+ bases = [cls]
+ for base in cls.__bases__:
+ bases.extend(self.get_classobj_bases(base))
+ return bases
+
+ def represent_data(self, data):
+ if self.ignore_aliases(data):
+ self.alias_key = None
+ else:
+ self.alias_key = id(data)
+ if self.alias_key is not None:
+ if self.alias_key in self.represented_objects:
+ node = self.represented_objects[self.alias_key]
+ #if node is None:
+ # raise RepresenterError("recursive objects are not allowed: %r" % data)
+ return node
+ #self.represented_objects[alias_key] = None
+ self.object_keeper.append(data)
+ data_types = type(data).__mro__
+ if type(data) is types.InstanceType:
+ data_types = self.get_classobj_bases(data.__class__)+list(data_types)
+ if data_types[0] in self.yaml_representers:
+ node = self.yaml_representers[data_types[0]](self, data)
+ else:
+ for data_type in data_types:
+ if data_type in self.yaml_multi_representers:
+ node = self.yaml_multi_representers[data_type](self, data)
+ break
+ else:
+ if None in self.yaml_multi_representers:
+ node = self.yaml_multi_representers[None](self, data)
+ elif None in self.yaml_representers:
+ node = self.yaml_representers[None](self, data)
+ else:
+ node = ScalarNode(None, unicode(data))
+ #if alias_key is not None:
+ # self.represented_objects[alias_key] = node
+ return node
+
+ def add_representer(cls, data_type, representer):
+ if not 'yaml_representers' in cls.__dict__:
+ cls.yaml_representers = cls.yaml_representers.copy()
+ cls.yaml_representers[data_type] = representer
+ add_representer = classmethod(add_representer)
+
+ def add_multi_representer(cls, data_type, representer):
+ if not 'yaml_multi_representers' in cls.__dict__:
+ cls.yaml_multi_representers = cls.yaml_multi_representers.copy()
+ cls.yaml_multi_representers[data_type] = representer
+ add_multi_representer = classmethod(add_multi_representer)
+
+ def represent_scalar(self, tag, value, style=None):
+ if style is None:
+ style = self.default_style
+ node = ScalarNode(tag, value, style=style)
+ if self.alias_key is not None:
+ self.represented_objects[self.alias_key] = node
+ return node
+
+ def represent_sequence(self, tag, sequence, flow_style=None):
+ value = []
+ node = SequenceNode(tag, value, flow_style=flow_style)
+ if self.alias_key is not None:
+ self.represented_objects[self.alias_key] = node
+ best_style = True
+ for item in sequence:
+ node_item = self.represent_data(item)
+ if not (isinstance(node_item, ScalarNode) and not node_item.style):
+ best_style = False
+ value.append(node_item)
+ if flow_style is None:
+ if self.default_flow_style is not None:
+ node.flow_style = self.default_flow_style
+ else:
+ node.flow_style = best_style
+ return node
+
+ def represent_mapping(self, tag, mapping, flow_style=None):
+ value = []
+ node = MappingNode(tag, value, flow_style=flow_style)
+ if self.alias_key is not None:
+ self.represented_objects[self.alias_key] = node
+ best_style = True
+ if hasattr(mapping, 'items'):
+ mapping = mapping.items()
+ mapping.sort()
+ for item_key, item_value in mapping:
+ node_key = self.represent_data(item_key)
+ node_value = self.represent_data(item_value)
+ if not (isinstance(node_key, ScalarNode) and not node_key.style):
+ best_style = False
+ if not (isinstance(node_value, ScalarNode) and not node_value.style):
+ best_style = False
+ value.append((node_key, node_value))
+ if flow_style is None:
+ if self.default_flow_style is not None:
+ node.flow_style = self.default_flow_style
+ else:
+ node.flow_style = best_style
+ return node
+
+ def ignore_aliases(self, data):
+ return False
+
+class SafeRepresenter(BaseRepresenter):
+
+ def ignore_aliases(self, data):
+ if data in [None, ()]:
+ return True
+ if isinstance(data, (str, unicode, bool, int, float)):
+ return True
+
+ def represent_none(self, data):
+ return self.represent_scalar(u'tag:yaml.org,2002:null',
+ u'null')
+
+ def represent_str(self, data):
+ tag = None
+ style = None
+ try:
+ data = unicode(data, 'ascii')
+ tag = u'tag:yaml.org,2002:str'
+ except UnicodeDecodeError:
+ try:
+ data = unicode(data, 'utf-8')
+ tag = u'tag:yaml.org,2002:str'
+ except UnicodeDecodeError:
+ data = data.encode('base64')
+ tag = u'tag:yaml.org,2002:binary'
+ style = '|'
+ return self.represent_scalar(tag, data, style=style)
+
+ def represent_unicode(self, data):
+ return self.represent_scalar(u'tag:yaml.org,2002:str', data)
+
+ def represent_bool(self, data):
+ if data:
+ value = u'true'
+ else:
+ value = u'false'
+ return self.represent_scalar(u'tag:yaml.org,2002:bool', value)
+
+ def represent_int(self, data):
+ return self.represent_scalar(u'tag:yaml.org,2002:int', unicode(data))
+
+ def represent_long(self, data):
+ return self.represent_scalar(u'tag:yaml.org,2002:int', unicode(data))
+
+ inf_value = 1e300
+ while repr(inf_value) != repr(inf_value*inf_value):
+ inf_value *= inf_value
+
+ def represent_float(self, data):
+ if data != data or (data == 0.0 and data == 1.0):
+ value = u'.nan'
+ elif data == self.inf_value:
+ value = u'.inf'
+ elif data == -self.inf_value:
+ value = u'-.inf'
+ else:
+ value = unicode(repr(data)).lower()
+ # Note that in some cases `repr(data)` represents a float number
+ # without the decimal parts. For instance:
+ # >>> repr(1e17)
+ # '1e17'
+ # Unfortunately, this is not a valid float representation according
+ # to the definition of the `!!float` tag. We fix this by adding
+ # '.0' before the 'e' symbol.
+ if u'.' not in value and u'e' in value:
+ value = value.replace(u'e', u'.0e', 1)
+ return self.represent_scalar(u'tag:yaml.org,2002:float', value)
+
+ def represent_list(self, data):
+ #pairs = (len(data) > 0 and isinstance(data, list))
+ #if pairs:
+ # for item in data:
+ # if not isinstance(item, tuple) or len(item) != 2:
+ # pairs = False
+ # break
+ #if not pairs:
+ return self.represent_sequence(u'tag:yaml.org,2002:seq', data)
+ #value = []
+ #for item_key, item_value in data:
+ # value.append(self.represent_mapping(u'tag:yaml.org,2002:map',
+ # [(item_key, item_value)]))
+ #return SequenceNode(u'tag:yaml.org,2002:pairs', value)
+
+ def represent_dict(self, data):
+ return self.represent_mapping(u'tag:yaml.org,2002:map', data)
+
+ def represent_set(self, data):
+ value = {}
+ for key in data:
+ value[key] = None
+ return self.represent_mapping(u'tag:yaml.org,2002:set', value)
+
+ def represent_date(self, data):
+ value = unicode(data.isoformat())
+ return self.represent_scalar(u'tag:yaml.org,2002:timestamp', value)
+
+ def represent_datetime(self, data):
+ value = unicode(data.isoformat(' '))
+ return self.represent_scalar(u'tag:yaml.org,2002:timestamp', value)
+
+ def represent_yaml_object(self, tag, data, cls, flow_style=None):
+ if hasattr(data, '__getstate__'):
+ state = data.__getstate__()
+ else:
+ state = data.__dict__.copy()
+ return self.represent_mapping(tag, state, flow_style=flow_style)
+
+ def represent_undefined(self, data):
+ raise RepresenterError("cannot represent an object: %s" % data)
+
+SafeRepresenter.add_representer(type(None),
+ SafeRepresenter.represent_none)
+
+SafeRepresenter.add_representer(str,
+ SafeRepresenter.represent_str)
+
+SafeRepresenter.add_representer(unicode,
+ SafeRepresenter.represent_unicode)
+
+SafeRepresenter.add_representer(bool,
+ SafeRepresenter.represent_bool)
+
+SafeRepresenter.add_representer(int,
+ SafeRepresenter.represent_int)
+
+SafeRepresenter.add_representer(long,
+ SafeRepresenter.represent_long)
+
+SafeRepresenter.add_representer(float,
+ SafeRepresenter.represent_float)
+
+SafeRepresenter.add_representer(list,
+ SafeRepresenter.represent_list)
+
+SafeRepresenter.add_representer(tuple,
+ SafeRepresenter.represent_list)
+
+SafeRepresenter.add_representer(dict,
+ SafeRepresenter.represent_dict)
+
+SafeRepresenter.add_representer(set,
+ SafeRepresenter.represent_set)
+
+SafeRepresenter.add_representer(datetime.date,
+ SafeRepresenter.represent_date)
+
+SafeRepresenter.add_representer(datetime.datetime,
+ SafeRepresenter.represent_datetime)
+
+SafeRepresenter.add_representer(None,
+ SafeRepresenter.represent_undefined)
+
+class Representer(SafeRepresenter):
+
+ def represent_str(self, data):
+ tag = None
+ style = None
+ try:
+ data = unicode(data, 'ascii')
+ tag = u'tag:yaml.org,2002:str'
+ except UnicodeDecodeError:
+ try:
+ data = unicode(data, 'utf-8')
+ tag = u'tag:yaml.org,2002:python/str'
+ except UnicodeDecodeError:
+ data = data.encode('base64')
+ tag = u'tag:yaml.org,2002:binary'
+ style = '|'
+ return self.represent_scalar(tag, data, style=style)
+
+ def represent_unicode(self, data):
+ tag = None
+ try:
+ data.encode('ascii')
+ tag = u'tag:yaml.org,2002:python/unicode'
+ except UnicodeEncodeError:
+ tag = u'tag:yaml.org,2002:str'
+ return self.represent_scalar(tag, data)
+
+ def represent_long(self, data):
+ tag = u'tag:yaml.org,2002:int'
+ if int(data) is not data:
+ tag = u'tag:yaml.org,2002:python/long'
+ return self.represent_scalar(tag, unicode(data))
+
+ def represent_complex(self, data):
+ if data.imag == 0.0:
+ data = u'%r' % data.real
+ elif data.real == 0.0:
+ data = u'%rj' % data.imag
+ elif data.imag > 0:
+ data = u'%r+%rj' % (data.real, data.imag)
+ else:
+ data = u'%r%rj' % (data.real, data.imag)
+ return self.represent_scalar(u'tag:yaml.org,2002:python/complex', data)
+
+ def represent_tuple(self, data):
+ return self.represent_sequence(u'tag:yaml.org,2002:python/tuple', data)
+
+ def represent_name(self, data):
+ name = u'%s.%s' % (data.__module__, data.__name__)
+ return self.represent_scalar(u'tag:yaml.org,2002:python/name:'+name, u'')
+
+ def represent_module(self, data):
+ return self.represent_scalar(
+ u'tag:yaml.org,2002:python/module:'+data.__name__, u'')
+
+ def represent_instance(self, data):
+ # For instances of classic classes, we use __getinitargs__ and
+ # __getstate__ to serialize the data.
+
+ # If data.__getinitargs__ exists, the object must be reconstructed by
+ # calling cls(**args), where args is a tuple returned by
+ # __getinitargs__. Otherwise, the cls.__init__ method should never be
+ # called and the class instance is created by instantiating a trivial
+ # class and assigning to the instance's __class__ variable.
+
+ # If data.__getstate__ exists, it returns the state of the object.
+ # Otherwise, the state of the object is data.__dict__.
+
+ # We produce either a !!python/object or !!python/object/new node.
+ # If data.__getinitargs__ does not exist and state is a dictionary, we
+ # produce a !!python/object node . Otherwise we produce a
+ # !!python/object/new node.
+
+ cls = data.__class__
+ class_name = u'%s.%s' % (cls.__module__, cls.__name__)
+ args = None
+ state = None
+ if hasattr(data, '__getinitargs__'):
+ args = list(data.__getinitargs__())
+ if hasattr(data, '__getstate__'):
+ state = data.__getstate__()
+ else:
+ state = data.__dict__
+ if args is None and isinstance(state, dict):
+ return self.represent_mapping(
+ u'tag:yaml.org,2002:python/object:'+class_name, state)
+ if isinstance(state, dict) and not state:
+ return self.represent_sequence(
+ u'tag:yaml.org,2002:python/object/new:'+class_name, args)
+ value = {}
+ if args:
+ value['args'] = args
+ value['state'] = state
+ return self.represent_mapping(
+ u'tag:yaml.org,2002:python/object/new:'+class_name, value)
+
+ def represent_object(self, data):
+ # We use __reduce__ API to save the data. data.__reduce__ returns
+ # a tuple of length 2-5:
+ # (function, args, state, listitems, dictitems)
+
+ # For reconstructing, we calls function(*args), then set its state,
+ # listitems, and dictitems if they are not None.
+
+ # A special case is when function.__name__ == '__newobj__'. In this
+ # case we create the object with args[0].__new__(*args).
+
+ # Another special case is when __reduce__ returns a string - we don't
+ # support it.
+
+ # We produce a !!python/object, !!python/object/new or
+ # !!python/object/apply node.
+
+ cls = type(data)
+ if cls in copy_reg.dispatch_table:
+ reduce = copy_reg.dispatch_table[cls](data)
+ elif hasattr(data, '__reduce_ex__'):
+ reduce = data.__reduce_ex__(2)
+ elif hasattr(data, '__reduce__'):
+ reduce = data.__reduce__()
+ else:
+ raise RepresenterError("cannot represent object: %r" % data)
+ reduce = (list(reduce)+[None]*5)[:5]
+ function, args, state, listitems, dictitems = reduce
+ args = list(args)
+ if state is None:
+ state = {}
+ if listitems is not None:
+ listitems = list(listitems)
+ if dictitems is not None:
+ dictitems = dict(dictitems)
+ if function.__name__ == '__newobj__':
+ function = args[0]
+ args = args[1:]
+ tag = u'tag:yaml.org,2002:python/object/new:'
+ newobj = True
+ else:
+ tag = u'tag:yaml.org,2002:python/object/apply:'
+ newobj = False
+ function_name = u'%s.%s' % (function.__module__, function.__name__)
+ if not args and not listitems and not dictitems \
+ and isinstance(state, dict) and newobj:
+ return self.represent_mapping(
+ u'tag:yaml.org,2002:python/object:'+function_name, state)
+ if not listitems and not dictitems \
+ and isinstance(state, dict) and not state:
+ return self.represent_sequence(tag+function_name, args)
+ value = {}
+ if args:
+ value['args'] = args
+ if state or not isinstance(state, dict):
+ value['state'] = state
+ if listitems:
+ value['listitems'] = listitems
+ if dictitems:
+ value['dictitems'] = dictitems
+ return self.represent_mapping(tag+function_name, value)
+
+Representer.add_representer(str,
+ Representer.represent_str)
+
+Representer.add_representer(unicode,
+ Representer.represent_unicode)
+
+Representer.add_representer(long,
+ Representer.represent_long)
+
+Representer.add_representer(complex,
+ Representer.represent_complex)
+
+Representer.add_representer(tuple,
+ Representer.represent_tuple)
+
+Representer.add_representer(type,
+ Representer.represent_name)
+
+Representer.add_representer(types.ClassType,
+ Representer.represent_name)
+
+Representer.add_representer(types.FunctionType,
+ Representer.represent_name)
+
+Representer.add_representer(types.BuiltinFunctionType,
+ Representer.represent_name)
+
+Representer.add_representer(types.ModuleType,
+ Representer.represent_module)
+
+Representer.add_multi_representer(types.InstanceType,
+ Representer.represent_instance)
+
+Representer.add_multi_representer(object,
+ Representer.represent_object)
+
diff --git a/python.d/python_modules/pyyaml2/resolver.py b/python.d/python_modules/pyyaml2/resolver.py
new file mode 100644
index 000000000..6b5ab8759
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/resolver.py
@@ -0,0 +1,224 @@
+
+__all__ = ['BaseResolver', 'Resolver']
+
+from error import *
+from nodes import *
+
+import re
+
+class ResolverError(YAMLError):
+ pass
+
+class BaseResolver(object):
+
+ DEFAULT_SCALAR_TAG = u'tag:yaml.org,2002:str'
+ DEFAULT_SEQUENCE_TAG = u'tag:yaml.org,2002:seq'
+ DEFAULT_MAPPING_TAG = u'tag:yaml.org,2002:map'
+
+ yaml_implicit_resolvers = {}
+ yaml_path_resolvers = {}
+
+ def __init__(self):
+ self.resolver_exact_paths = []
+ self.resolver_prefix_paths = []
+
+ def add_implicit_resolver(cls, tag, regexp, first):
+ if not 'yaml_implicit_resolvers' in cls.__dict__:
+ cls.yaml_implicit_resolvers = cls.yaml_implicit_resolvers.copy()
+ if first is None:
+ first = [None]
+ for ch in first:
+ cls.yaml_implicit_resolvers.setdefault(ch, []).append((tag, regexp))
+ add_implicit_resolver = classmethod(add_implicit_resolver)
+
+ def add_path_resolver(cls, tag, path, kind=None):
+ # Note: `add_path_resolver` is experimental. The API could be changed.
+ # `new_path` is a pattern that is matched against the path from the
+ # root to the node that is being considered. `node_path` elements are
+ # tuples `(node_check, index_check)`. `node_check` is a node class:
+ # `ScalarNode`, `SequenceNode`, `MappingNode` or `None`. `None`
+ # matches any kind of a node. `index_check` could be `None`, a boolean
+ # value, a string value, or a number. `None` and `False` match against
+ # any _value_ of sequence and mapping nodes. `True` matches against
+ # any _key_ of a mapping node. A string `index_check` matches against
+ # a mapping value that corresponds to a scalar key which content is
+ # equal to the `index_check` value. An integer `index_check` matches
+ # against a sequence value with the index equal to `index_check`.
+ if not 'yaml_path_resolvers' in cls.__dict__:
+ cls.yaml_path_resolvers = cls.yaml_path_resolvers.copy()
+ new_path = []
+ for element in path:
+ if isinstance(element, (list, tuple)):
+ if len(element) == 2:
+ node_check, index_check = element
+ elif len(element) == 1:
+ node_check = element[0]
+ index_check = True
+ else:
+ raise ResolverError("Invalid path element: %s" % element)
+ else:
+ node_check = None
+ index_check = element
+ if node_check is str:
+ node_check = ScalarNode
+ elif node_check is list:
+ node_check = SequenceNode
+ elif node_check is dict:
+ node_check = MappingNode
+ elif node_check not in [ScalarNode, SequenceNode, MappingNode] \
+ and not isinstance(node_check, basestring) \
+ and node_check is not None:
+ raise ResolverError("Invalid node checker: %s" % node_check)
+ if not isinstance(index_check, (basestring, int)) \
+ and index_check is not None:
+ raise ResolverError("Invalid index checker: %s" % index_check)
+ new_path.append((node_check, index_check))
+ if kind is str:
+ kind = ScalarNode
+ elif kind is list:
+ kind = SequenceNode
+ elif kind is dict:
+ kind = MappingNode
+ elif kind not in [ScalarNode, SequenceNode, MappingNode] \
+ and kind is not None:
+ raise ResolverError("Invalid node kind: %s" % kind)
+ cls.yaml_path_resolvers[tuple(new_path), kind] = tag
+ add_path_resolver = classmethod(add_path_resolver)
+
+ def descend_resolver(self, current_node, current_index):
+ if not self.yaml_path_resolvers:
+ return
+ exact_paths = {}
+ prefix_paths = []
+ if current_node:
+ depth = len(self.resolver_prefix_paths)
+ for path, kind in self.resolver_prefix_paths[-1]:
+ if self.check_resolver_prefix(depth, path, kind,
+ current_node, current_index):
+ if len(path) > depth:
+ prefix_paths.append((path, kind))
+ else:
+ exact_paths[kind] = self.yaml_path_resolvers[path, kind]
+ else:
+ for path, kind in self.yaml_path_resolvers:
+ if not path:
+ exact_paths[kind] = self.yaml_path_resolvers[path, kind]
+ else:
+ prefix_paths.append((path, kind))
+ self.resolver_exact_paths.append(exact_paths)
+ self.resolver_prefix_paths.append(prefix_paths)
+
+ def ascend_resolver(self):
+ if not self.yaml_path_resolvers:
+ return
+ self.resolver_exact_paths.pop()
+ self.resolver_prefix_paths.pop()
+
+ def check_resolver_prefix(self, depth, path, kind,
+ current_node, current_index):
+ node_check, index_check = path[depth-1]
+ if isinstance(node_check, basestring):
+ if current_node.tag != node_check:
+ return
+ elif node_check is not None:
+ if not isinstance(current_node, node_check):
+ return
+ if index_check is True and current_index is not None:
+ return
+ if (index_check is False or index_check is None) \
+ and current_index is None:
+ return
+ if isinstance(index_check, basestring):
+ if not (isinstance(current_index, ScalarNode)
+ and index_check == current_index.value):
+ return
+ elif isinstance(index_check, int) and not isinstance(index_check, bool):
+ if index_check != current_index:
+ return
+ return True
+
+ def resolve(self, kind, value, implicit):
+ if kind is ScalarNode and implicit[0]:
+ if value == u'':
+ resolvers = self.yaml_implicit_resolvers.get(u'', [])
+ else:
+ resolvers = self.yaml_implicit_resolvers.get(value[0], [])
+ resolvers += self.yaml_implicit_resolvers.get(None, [])
+ for tag, regexp in resolvers:
+ if regexp.match(value):
+ return tag
+ implicit = implicit[1]
+ if self.yaml_path_resolvers:
+ exact_paths = self.resolver_exact_paths[-1]
+ if kind in exact_paths:
+ return exact_paths[kind]
+ if None in exact_paths:
+ return exact_paths[None]
+ if kind is ScalarNode:
+ return self.DEFAULT_SCALAR_TAG
+ elif kind is SequenceNode:
+ return self.DEFAULT_SEQUENCE_TAG
+ elif kind is MappingNode:
+ return self.DEFAULT_MAPPING_TAG
+
+class Resolver(BaseResolver):
+ pass
+
+Resolver.add_implicit_resolver(
+ u'tag:yaml.org,2002:bool',
+ re.compile(ur'''^(?:yes|Yes|YES|no|No|NO
+ |true|True|TRUE|false|False|FALSE
+ |on|On|ON|off|Off|OFF)$''', re.X),
+ list(u'yYnNtTfFoO'))
+
+Resolver.add_implicit_resolver(
+ u'tag:yaml.org,2002:float',
+ re.compile(ur'''^(?:[-+]?(?:[0-9][0-9_]*)\.[0-9_]*(?:[eE][-+][0-9]+)?
+ |\.[0-9_]+(?:[eE][-+][0-9]+)?
+ |[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+\.[0-9_]*
+ |[-+]?\.(?:inf|Inf|INF)
+ |\.(?:nan|NaN|NAN))$''', re.X),
+ list(u'-+0123456789.'))
+
+Resolver.add_implicit_resolver(
+ u'tag:yaml.org,2002:int',
+ re.compile(ur'''^(?:[-+]?0b[0-1_]+
+ |[-+]?0[0-7_]+
+ |[-+]?(?:0|[1-9][0-9_]*)
+ |[-+]?0x[0-9a-fA-F_]+
+ |[-+]?[1-9][0-9_]*(?::[0-5]?[0-9])+)$''', re.X),
+ list(u'-+0123456789'))
+
+Resolver.add_implicit_resolver(
+ u'tag:yaml.org,2002:merge',
+ re.compile(ur'^(?:<<)$'),
+ [u'<'])
+
+Resolver.add_implicit_resolver(
+ u'tag:yaml.org,2002:null',
+ re.compile(ur'''^(?: ~
+ |null|Null|NULL
+ | )$''', re.X),
+ [u'~', u'n', u'N', u''])
+
+Resolver.add_implicit_resolver(
+ u'tag:yaml.org,2002:timestamp',
+ re.compile(ur'''^(?:[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]
+ |[0-9][0-9][0-9][0-9] -[0-9][0-9]? -[0-9][0-9]?
+ (?:[Tt]|[ \t]+)[0-9][0-9]?
+ :[0-9][0-9] :[0-9][0-9] (?:\.[0-9]*)?
+ (?:[ \t]*(?:Z|[-+][0-9][0-9]?(?::[0-9][0-9])?))?)$''', re.X),
+ list(u'0123456789'))
+
+Resolver.add_implicit_resolver(
+ u'tag:yaml.org,2002:value',
+ re.compile(ur'^(?:=)$'),
+ [u'='])
+
+# The following resolver is only for documentation purposes. It cannot work
+# because plain scalars cannot start with '!', '&', or '*'.
+Resolver.add_implicit_resolver(
+ u'tag:yaml.org,2002:yaml',
+ re.compile(ur'^(?:!|&|\*)$'),
+ list(u'!&*'))
+
diff --git a/python.d/python_modules/pyyaml2/scanner.py b/python.d/python_modules/pyyaml2/scanner.py
new file mode 100644
index 000000000..5228fad65
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/scanner.py
@@ -0,0 +1,1457 @@
+
+# Scanner produces tokens of the following types:
+# STREAM-START
+# STREAM-END
+# DIRECTIVE(name, value)
+# DOCUMENT-START
+# DOCUMENT-END
+# BLOCK-SEQUENCE-START
+# BLOCK-MAPPING-START
+# BLOCK-END
+# FLOW-SEQUENCE-START
+# FLOW-MAPPING-START
+# FLOW-SEQUENCE-END
+# FLOW-MAPPING-END
+# BLOCK-ENTRY
+# FLOW-ENTRY
+# KEY
+# VALUE
+# ALIAS(value)
+# ANCHOR(value)
+# TAG(value)
+# SCALAR(value, plain, style)
+#
+# Read comments in the Scanner code for more details.
+#
+
+__all__ = ['Scanner', 'ScannerError']
+
+from error import MarkedYAMLError
+from tokens import *
+
+class ScannerError(MarkedYAMLError):
+ pass
+
+class SimpleKey(object):
+ # See below simple keys treatment.
+
+ def __init__(self, token_number, required, index, line, column, mark):
+ self.token_number = token_number
+ self.required = required
+ self.index = index
+ self.line = line
+ self.column = column
+ self.mark = mark
+
+class Scanner(object):
+
+ def __init__(self):
+ """Initialize the scanner."""
+ # It is assumed that Scanner and Reader will have a common descendant.
+ # Reader do the dirty work of checking for BOM and converting the
+ # input data to Unicode. It also adds NUL to the end.
+ #
+ # Reader supports the following methods
+ # self.peek(i=0) # peek the next i-th character
+ # self.prefix(l=1) # peek the next l characters
+ # self.forward(l=1) # read the next l characters and move the pointer.
+
+ # Had we reached the end of the stream?
+ self.done = False
+
+ # The number of unclosed '{' and '['. `flow_level == 0` means block
+ # context.
+ self.flow_level = 0
+
+ # List of processed tokens that are not yet emitted.
+ self.tokens = []
+
+ # Add the STREAM-START token.
+ self.fetch_stream_start()
+
+ # Number of tokens that were emitted through the `get_token` method.
+ self.tokens_taken = 0
+
+ # The current indentation level.
+ self.indent = -1
+
+ # Past indentation levels.
+ self.indents = []
+
+ # Variables related to simple keys treatment.
+
+ # A simple key is a key that is not denoted by the '?' indicator.
+ # Example of simple keys:
+ # ---
+ # block simple key: value
+ # ? not a simple key:
+ # : { flow simple key: value }
+ # We emit the KEY token before all keys, so when we find a potential
+ # simple key, we try to locate the corresponding ':' indicator.
+ # Simple keys should be limited to a single line and 1024 characters.
+
+ # Can a simple key start at the current position? A simple key may
+ # start:
+ # - at the beginning of the line, not counting indentation spaces
+ # (in block context),
+ # - after '{', '[', ',' (in the flow context),
+ # - after '?', ':', '-' (in the block context).
+ # In the block context, this flag also signifies if a block collection
+ # may start at the current position.
+ self.allow_simple_key = True
+
+ # Keep track of possible simple keys. This is a dictionary. The key
+ # is `flow_level`; there can be no more that one possible simple key
+ # for each level. The value is a SimpleKey record:
+ # (token_number, required, index, line, column, mark)
+ # A simple key may start with ALIAS, ANCHOR, TAG, SCALAR(flow),
+ # '[', or '{' tokens.
+ self.possible_simple_keys = {}
+
+ # Public methods.
+
+ def check_token(self, *choices):
+ # Check if the next token is one of the given types.
+ while self.need_more_tokens():
+ self.fetch_more_tokens()
+ if self.tokens:
+ if not choices:
+ return True
+ for choice in choices:
+ if isinstance(self.tokens[0], choice):
+ return True
+ return False
+
+ def peek_token(self):
+ # Return the next token, but do not delete if from the queue.
+ while self.need_more_tokens():
+ self.fetch_more_tokens()
+ if self.tokens:
+ return self.tokens[0]
+
+ def get_token(self):
+ # Return the next token.
+ while self.need_more_tokens():
+ self.fetch_more_tokens()
+ if self.tokens:
+ self.tokens_taken += 1
+ return self.tokens.pop(0)
+
+ # Private methods.
+
+ def need_more_tokens(self):
+ if self.done:
+ return False
+ if not self.tokens:
+ return True
+ # The current token may be a potential simple key, so we
+ # need to look further.
+ self.stale_possible_simple_keys()
+ if self.next_possible_simple_key() == self.tokens_taken:
+ return True
+
+ def fetch_more_tokens(self):
+
+ # Eat whitespaces and comments until we reach the next token.
+ self.scan_to_next_token()
+
+ # Remove obsolete possible simple keys.
+ self.stale_possible_simple_keys()
+
+ # Compare the current indentation and column. It may add some tokens
+ # and decrease the current indentation level.
+ self.unwind_indent(self.column)
+
+ # Peek the next character.
+ ch = self.peek()
+
+ # Is it the end of stream?
+ if ch == u'\0':
+ return self.fetch_stream_end()
+
+ # Is it a directive?
+ if ch == u'%' and self.check_directive():
+ return self.fetch_directive()
+
+ # Is it the document start?
+ if ch == u'-' and self.check_document_start():
+ return self.fetch_document_start()
+
+ # Is it the document end?
+ if ch == u'.' and self.check_document_end():
+ return self.fetch_document_end()
+
+ # TODO: support for BOM within a stream.
+ #if ch == u'\uFEFF':
+ # return self.fetch_bom() <-- issue BOMToken
+
+ # Note: the order of the following checks is NOT significant.
+
+ # Is it the flow sequence start indicator?
+ if ch == u'[':
+ return self.fetch_flow_sequence_start()
+
+ # Is it the flow mapping start indicator?
+ if ch == u'{':
+ return self.fetch_flow_mapping_start()
+
+ # Is it the flow sequence end indicator?
+ if ch == u']':
+ return self.fetch_flow_sequence_end()
+
+ # Is it the flow mapping end indicator?
+ if ch == u'}':
+ return self.fetch_flow_mapping_end()
+
+ # Is it the flow entry indicator?
+ if ch == u',':
+ return self.fetch_flow_entry()
+
+ # Is it the block entry indicator?
+ if ch == u'-' and self.check_block_entry():
+ return self.fetch_block_entry()
+
+ # Is it the key indicator?
+ if ch == u'?' and self.check_key():
+ return self.fetch_key()
+
+ # Is it the value indicator?
+ if ch == u':' and self.check_value():
+ return self.fetch_value()
+
+ # Is it an alias?
+ if ch == u'*':
+ return self.fetch_alias()
+
+ # Is it an anchor?
+ if ch == u'&':
+ return self.fetch_anchor()
+
+ # Is it a tag?
+ if ch == u'!':
+ return self.fetch_tag()
+
+ # Is it a literal scalar?
+ if ch == u'|' and not self.flow_level:
+ return self.fetch_literal()
+
+ # Is it a folded scalar?
+ if ch == u'>' and not self.flow_level:
+ return self.fetch_folded()
+
+ # Is it a single quoted scalar?
+ if ch == u'\'':
+ return self.fetch_single()
+
+ # Is it a double quoted scalar?
+ if ch == u'\"':
+ return self.fetch_double()
+
+ # It must be a plain scalar then.
+ if self.check_plain():
+ return self.fetch_plain()
+
+ # No? It's an error. Let's produce a nice error message.
+ raise ScannerError("while scanning for the next token", None,
+ "found character %r that cannot start any token"
+ % ch.encode('utf-8'), self.get_mark())
+
+ # Simple keys treatment.
+
+ def next_possible_simple_key(self):
+ # Return the number of the nearest possible simple key. Actually we
+ # don't need to loop through the whole dictionary. We may replace it
+ # with the following code:
+ # if not self.possible_simple_keys:
+ # return None
+ # return self.possible_simple_keys[
+ # min(self.possible_simple_keys.keys())].token_number
+ min_token_number = None
+ for level in self.possible_simple_keys:
+ key = self.possible_simple_keys[level]
+ if min_token_number is None or key.token_number < min_token_number:
+ min_token_number = key.token_number
+ return min_token_number
+
+ def stale_possible_simple_keys(self):
+ # Remove entries that are no longer possible simple keys. According to
+ # the YAML specification, simple keys
+ # - should be limited to a single line,
+ # - should be no longer than 1024 characters.
+ # Disabling this procedure will allow simple keys of any length and
+ # height (may cause problems if indentation is broken though).
+ for level in self.possible_simple_keys.keys():
+ key = self.possible_simple_keys[level]
+ if key.line != self.line \
+ or self.index-key.index > 1024:
+ if key.required:
+ raise ScannerError("while scanning a simple key", key.mark,
+ "could not found expected ':'", self.get_mark())
+ del self.possible_simple_keys[level]
+
+ def save_possible_simple_key(self):
+ # The next token may start a simple key. We check if it's possible
+ # and save its position. This function is called for
+ # ALIAS, ANCHOR, TAG, SCALAR(flow), '[', and '{'.
+
+ # Check if a simple key is required at the current position.
+ required = not self.flow_level and self.indent == self.column
+
+ # A simple key is required only if it is the first token in the current
+ # line. Therefore it is always allowed.
+ assert self.allow_simple_key or not required
+
+ # The next token might be a simple key. Let's save it's number and
+ # position.
+ if self.allow_simple_key:
+ self.remove_possible_simple_key()
+ token_number = self.tokens_taken+len(self.tokens)
+ key = SimpleKey(token_number, required,
+ self.index, self.line, self.column, self.get_mark())
+ self.possible_simple_keys[self.flow_level] = key
+
+ def remove_possible_simple_key(self):
+ # Remove the saved possible key position at the current flow level.
+ if self.flow_level in self.possible_simple_keys:
+ key = self.possible_simple_keys[self.flow_level]
+
+ if key.required:
+ raise ScannerError("while scanning a simple key", key.mark,
+ "could not found expected ':'", self.get_mark())
+
+ del self.possible_simple_keys[self.flow_level]
+
+ # Indentation functions.
+
+ def unwind_indent(self, column):
+
+ ## In flow context, tokens should respect indentation.
+ ## Actually the condition should be `self.indent >= column` according to
+ ## the spec. But this condition will prohibit intuitively correct
+ ## constructions such as
+ ## key : {
+ ## }
+ #if self.flow_level and self.indent > column:
+ # raise ScannerError(None, None,
+ # "invalid intendation or unclosed '[' or '{'",
+ # self.get_mark())
+
+ # In the flow context, indentation is ignored. We make the scanner less
+ # restrictive then specification requires.
+ if self.flow_level:
+ return
+
+ # In block context, we may need to issue the BLOCK-END tokens.
+ while self.indent > column:
+ mark = self.get_mark()
+ self.indent = self.indents.pop()
+ self.tokens.append(BlockEndToken(mark, mark))
+
+ def add_indent(self, column):
+ # Check if we need to increase indentation.
+ if self.indent < column:
+ self.indents.append(self.indent)
+ self.indent = column
+ return True
+ return False
+
+ # Fetchers.
+
+ def fetch_stream_start(self):
+ # We always add STREAM-START as the first token and STREAM-END as the
+ # last token.
+
+ # Read the token.
+ mark = self.get_mark()
+
+ # Add STREAM-START.
+ self.tokens.append(StreamStartToken(mark, mark,
+ encoding=self.encoding))
+
+
+ def fetch_stream_end(self):
+
+ # Set the current intendation to -1.
+ self.unwind_indent(-1)
+
+ # Reset simple keys.
+ self.remove_possible_simple_key()
+ self.allow_simple_key = False
+ self.possible_simple_keys = {}
+
+ # Read the token.
+ mark = self.get_mark()
+
+ # Add STREAM-END.
+ self.tokens.append(StreamEndToken(mark, mark))
+
+ # The steam is finished.
+ self.done = True
+
+ def fetch_directive(self):
+
+ # Set the current intendation to -1.
+ self.unwind_indent(-1)
+
+ # Reset simple keys.
+ self.remove_possible_simple_key()
+ self.allow_simple_key = False
+
+ # Scan and add DIRECTIVE.
+ self.tokens.append(self.scan_directive())
+
+ def fetch_document_start(self):
+ self.fetch_document_indicator(DocumentStartToken)
+
+ def fetch_document_end(self):
+ self.fetch_document_indicator(DocumentEndToken)
+
+ def fetch_document_indicator(self, TokenClass):
+
+ # Set the current intendation to -1.
+ self.unwind_indent(-1)
+
+ # Reset simple keys. Note that there could not be a block collection
+ # after '---'.
+ self.remove_possible_simple_key()
+ self.allow_simple_key = False
+
+ # Add DOCUMENT-START or DOCUMENT-END.
+ start_mark = self.get_mark()
+ self.forward(3)
+ end_mark = self.get_mark()
+ self.tokens.append(TokenClass(start_mark, end_mark))
+
+ def fetch_flow_sequence_start(self):
+ self.fetch_flow_collection_start(FlowSequenceStartToken)
+
+ def fetch_flow_mapping_start(self):
+ self.fetch_flow_collection_start(FlowMappingStartToken)
+
+ def fetch_flow_collection_start(self, TokenClass):
+
+ # '[' and '{' may start a simple key.
+ self.save_possible_simple_key()
+
+ # Increase the flow level.
+ self.flow_level += 1
+
+ # Simple keys are allowed after '[' and '{'.
+ self.allow_simple_key = True
+
+ # Add FLOW-SEQUENCE-START or FLOW-MAPPING-START.
+ start_mark = self.get_mark()
+ self.forward()
+ end_mark = self.get_mark()
+ self.tokens.append(TokenClass(start_mark, end_mark))
+
+ def fetch_flow_sequence_end(self):
+ self.fetch_flow_collection_end(FlowSequenceEndToken)
+
+ def fetch_flow_mapping_end(self):
+ self.fetch_flow_collection_end(FlowMappingEndToken)
+
+ def fetch_flow_collection_end(self, TokenClass):
+
+ # Reset possible simple key on the current level.
+ self.remove_possible_simple_key()
+
+ # Decrease the flow level.
+ self.flow_level -= 1
+
+ # No simple keys after ']' or '}'.
+ self.allow_simple_key = False
+
+ # Add FLOW-SEQUENCE-END or FLOW-MAPPING-END.
+ start_mark = self.get_mark()
+ self.forward()
+ end_mark = self.get_mark()
+ self.tokens.append(TokenClass(start_mark, end_mark))
+
+ def fetch_flow_entry(self):
+
+ # Simple keys are allowed after ','.
+ self.allow_simple_key = True
+
+ # Reset possible simple key on the current level.
+ self.remove_possible_simple_key()
+
+ # Add FLOW-ENTRY.
+ start_mark = self.get_mark()
+ self.forward()
+ end_mark = self.get_mark()
+ self.tokens.append(FlowEntryToken(start_mark, end_mark))
+
+ def fetch_block_entry(self):
+
+ # Block context needs additional checks.
+ if not self.flow_level:
+
+ # Are we allowed to start a new entry?
+ if not self.allow_simple_key:
+ raise ScannerError(None, None,
+ "sequence entries are not allowed here",
+ self.get_mark())
+
+ # We may need to add BLOCK-SEQUENCE-START.
+ if self.add_indent(self.column):
+ mark = self.get_mark()
+ self.tokens.append(BlockSequenceStartToken(mark, mark))
+
+ # It's an error for the block entry to occur in the flow context,
+ # but we let the parser detect this.
+ else:
+ pass
+
+ # Simple keys are allowed after '-'.
+ self.allow_simple_key = True
+
+ # Reset possible simple key on the current level.
+ self.remove_possible_simple_key()
+
+ # Add BLOCK-ENTRY.
+ start_mark = self.get_mark()
+ self.forward()
+ end_mark = self.get_mark()
+ self.tokens.append(BlockEntryToken(start_mark, end_mark))
+
+ def fetch_key(self):
+
+ # Block context needs additional checks.
+ if not self.flow_level:
+
+ # Are we allowed to start a key (not nessesary a simple)?
+ if not self.allow_simple_key:
+ raise ScannerError(None, None,
+ "mapping keys are not allowed here",
+ self.get_mark())
+
+ # We may need to add BLOCK-MAPPING-START.
+ if self.add_indent(self.column):
+ mark = self.get_mark()
+ self.tokens.append(BlockMappingStartToken(mark, mark))
+
+ # Simple keys are allowed after '?' in the block context.
+ self.allow_simple_key = not self.flow_level
+
+ # Reset possible simple key on the current level.
+ self.remove_possible_simple_key()
+
+ # Add KEY.
+ start_mark = self.get_mark()
+ self.forward()
+ end_mark = self.get_mark()
+ self.tokens.append(KeyToken(start_mark, end_mark))
+
+ def fetch_value(self):
+
+ # Do we determine a simple key?
+ if self.flow_level in self.possible_simple_keys:
+
+ # Add KEY.
+ key = self.possible_simple_keys[self.flow_level]
+ del self.possible_simple_keys[self.flow_level]
+ self.tokens.insert(key.token_number-self.tokens_taken,
+ KeyToken(key.mark, key.mark))
+
+ # If this key starts a new block mapping, we need to add
+ # BLOCK-MAPPING-START.
+ if not self.flow_level:
+ if self.add_indent(key.column):
+ self.tokens.insert(key.token_number-self.tokens_taken,
+ BlockMappingStartToken(key.mark, key.mark))
+
+ # There cannot be two simple keys one after another.
+ self.allow_simple_key = False
+
+ # It must be a part of a complex key.
+ else:
+
+ # Block context needs additional checks.
+ # (Do we really need them? They will be catched by the parser
+ # anyway.)
+ if not self.flow_level:
+
+ # We are allowed to start a complex value if and only if
+ # we can start a simple key.
+ if not self.allow_simple_key:
+ raise ScannerError(None, None,
+ "mapping values are not allowed here",
+ self.get_mark())
+
+ # If this value starts a new block mapping, we need to add
+ # BLOCK-MAPPING-START. It will be detected as an error later by
+ # the parser.
+ if not self.flow_level:
+ if self.add_indent(self.column):
+ mark = self.get_mark()
+ self.tokens.append(BlockMappingStartToken(mark, mark))
+
+ # Simple keys are allowed after ':' in the block context.
+ self.allow_simple_key = not self.flow_level
+
+ # Reset possible simple key on the current level.
+ self.remove_possible_simple_key()
+
+ # Add VALUE.
+ start_mark = self.get_mark()
+ self.forward()
+ end_mark = self.get_mark()
+ self.tokens.append(ValueToken(start_mark, end_mark))
+
+ def fetch_alias(self):
+
+ # ALIAS could be a simple key.
+ self.save_possible_simple_key()
+
+ # No simple keys after ALIAS.
+ self.allow_simple_key = False
+
+ # Scan and add ALIAS.
+ self.tokens.append(self.scan_anchor(AliasToken))
+
+ def fetch_anchor(self):
+
+ # ANCHOR could start a simple key.
+ self.save_possible_simple_key()
+
+ # No simple keys after ANCHOR.
+ self.allow_simple_key = False
+
+ # Scan and add ANCHOR.
+ self.tokens.append(self.scan_anchor(AnchorToken))
+
+ def fetch_tag(self):
+
+ # TAG could start a simple key.
+ self.save_possible_simple_key()
+
+ # No simple keys after TAG.
+ self.allow_simple_key = False
+
+ # Scan and add TAG.
+ self.tokens.append(self.scan_tag())
+
+ def fetch_literal(self):
+ self.fetch_block_scalar(style='|')
+
+ def fetch_folded(self):
+ self.fetch_block_scalar(style='>')
+
+ def fetch_block_scalar(self, style):
+
+ # A simple key may follow a block scalar.
+ self.allow_simple_key = True
+
+ # Reset possible simple key on the current level.
+ self.remove_possible_simple_key()
+
+ # Scan and add SCALAR.
+ self.tokens.append(self.scan_block_scalar(style))
+
+ def fetch_single(self):
+ self.fetch_flow_scalar(style='\'')
+
+ def fetch_double(self):
+ self.fetch_flow_scalar(style='"')
+
+ def fetch_flow_scalar(self, style):
+
+ # A flow scalar could be a simple key.
+ self.save_possible_simple_key()
+
+ # No simple keys after flow scalars.
+ self.allow_simple_key = False
+
+ # Scan and add SCALAR.
+ self.tokens.append(self.scan_flow_scalar(style))
+
+ def fetch_plain(self):
+
+ # A plain scalar could be a simple key.
+ self.save_possible_simple_key()
+
+ # No simple keys after plain scalars. But note that `scan_plain` will
+ # change this flag if the scan is finished at the beginning of the
+ # line.
+ self.allow_simple_key = False
+
+ # Scan and add SCALAR. May change `allow_simple_key`.
+ self.tokens.append(self.scan_plain())
+
+ # Checkers.
+
+ def check_directive(self):
+
+ # DIRECTIVE: ^ '%' ...
+ # The '%' indicator is already checked.
+ if self.column == 0:
+ return True
+
+ def check_document_start(self):
+
+ # DOCUMENT-START: ^ '---' (' '|'\n')
+ if self.column == 0:
+ if self.prefix(3) == u'---' \
+ and self.peek(3) in u'\0 \t\r\n\x85\u2028\u2029':
+ return True
+
+ def check_document_end(self):
+
+ # DOCUMENT-END: ^ '...' (' '|'\n')
+ if self.column == 0:
+ if self.prefix(3) == u'...' \
+ and self.peek(3) in u'\0 \t\r\n\x85\u2028\u2029':
+ return True
+
+ def check_block_entry(self):
+
+ # BLOCK-ENTRY: '-' (' '|'\n')
+ return self.peek(1) in u'\0 \t\r\n\x85\u2028\u2029'
+
+ def check_key(self):
+
+ # KEY(flow context): '?'
+ if self.flow_level:
+ return True
+
+ # KEY(block context): '?' (' '|'\n')
+ else:
+ return self.peek(1) in u'\0 \t\r\n\x85\u2028\u2029'
+
+ def check_value(self):
+
+ # VALUE(flow context): ':'
+ if self.flow_level:
+ return True
+
+ # VALUE(block context): ':' (' '|'\n')
+ else:
+ return self.peek(1) in u'\0 \t\r\n\x85\u2028\u2029'
+
+ def check_plain(self):
+
+ # A plain scalar may start with any non-space character except:
+ # '-', '?', ':', ',', '[', ']', '{', '}',
+ # '#', '&', '*', '!', '|', '>', '\'', '\"',
+ # '%', '@', '`'.
+ #
+ # It may also start with
+ # '-', '?', ':'
+ # if it is followed by a non-space character.
+ #
+ # Note that we limit the last rule to the block context (except the
+ # '-' character) because we want the flow context to be space
+ # independent.
+ ch = self.peek()
+ return ch not in u'\0 \t\r\n\x85\u2028\u2029-?:,[]{}#&*!|>\'\"%@`' \
+ or (self.peek(1) not in u'\0 \t\r\n\x85\u2028\u2029'
+ and (ch == u'-' or (not self.flow_level and ch in u'?:')))
+
+ # Scanners.
+
+ def scan_to_next_token(self):
+ # We ignore spaces, line breaks and comments.
+ # If we find a line break in the block context, we set the flag
+ # `allow_simple_key` on.
+ # The byte order mark is stripped if it's the first character in the
+ # stream. We do not yet support BOM inside the stream as the
+ # specification requires. Any such mark will be considered as a part
+ # of the document.
+ #
+ # TODO: We need to make tab handling rules more sane. A good rule is
+ # Tabs cannot precede tokens
+ # BLOCK-SEQUENCE-START, BLOCK-MAPPING-START, BLOCK-END,
+ # KEY(block), VALUE(block), BLOCK-ENTRY
+ # So the checking code is
+ # if <TAB>:
+ # self.allow_simple_keys = False
+ # We also need to add the check for `allow_simple_keys == True` to
+ # `unwind_indent` before issuing BLOCK-END.
+ # Scanners for block, flow, and plain scalars need to be modified.
+
+ if self.index == 0 and self.peek() == u'\uFEFF':
+ self.forward()
+ found = False
+ while not found:
+ while self.peek() == u' ':
+ self.forward()
+ if self.peek() == u'#':
+ while self.peek() not in u'\0\r\n\x85\u2028\u2029':
+ self.forward()
+ if self.scan_line_break():
+ if not self.flow_level:
+ self.allow_simple_key = True
+ else:
+ found = True
+
+ def scan_directive(self):
+ # See the specification for details.
+ start_mark = self.get_mark()
+ self.forward()
+ name = self.scan_directive_name(start_mark)
+ value = None
+ if name == u'YAML':
+ value = self.scan_yaml_directive_value(start_mark)
+ end_mark = self.get_mark()
+ elif name == u'TAG':
+ value = self.scan_tag_directive_value(start_mark)
+ end_mark = self.get_mark()
+ else:
+ end_mark = self.get_mark()
+ while self.peek() not in u'\0\r\n\x85\u2028\u2029':
+ self.forward()
+ self.scan_directive_ignored_line(start_mark)
+ return DirectiveToken(name, value, start_mark, end_mark)
+
+ def scan_directive_name(self, start_mark):
+ # See the specification for details.
+ length = 0
+ ch = self.peek(length)
+ while u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z' \
+ or ch in u'-_':
+ length += 1
+ ch = self.peek(length)
+ if not length:
+ raise ScannerError("while scanning a directive", start_mark,
+ "expected alphabetic or numeric character, but found %r"
+ % ch.encode('utf-8'), self.get_mark())
+ value = self.prefix(length)
+ self.forward(length)
+ ch = self.peek()
+ if ch not in u'\0 \r\n\x85\u2028\u2029':
+ raise ScannerError("while scanning a directive", start_mark,
+ "expected alphabetic or numeric character, but found %r"
+ % ch.encode('utf-8'), self.get_mark())
+ return value
+
+ def scan_yaml_directive_value(self, start_mark):
+ # See the specification for details.
+ while self.peek() == u' ':
+ self.forward()
+ major = self.scan_yaml_directive_number(start_mark)
+ if self.peek() != '.':
+ raise ScannerError("while scanning a directive", start_mark,
+ "expected a digit or '.', but found %r"
+ % self.peek().encode('utf-8'),
+ self.get_mark())
+ self.forward()
+ minor = self.scan_yaml_directive_number(start_mark)
+ if self.peek() not in u'\0 \r\n\x85\u2028\u2029':
+ raise ScannerError("while scanning a directive", start_mark,
+ "expected a digit or ' ', but found %r"
+ % self.peek().encode('utf-8'),
+ self.get_mark())
+ return (major, minor)
+
+ def scan_yaml_directive_number(self, start_mark):
+ # See the specification for details.
+ ch = self.peek()
+ if not (u'0' <= ch <= u'9'):
+ raise ScannerError("while scanning a directive", start_mark,
+ "expected a digit, but found %r" % ch.encode('utf-8'),
+ self.get_mark())
+ length = 0
+ while u'0' <= self.peek(length) <= u'9':
+ length += 1
+ value = int(self.prefix(length))
+ self.forward(length)
+ return value
+
+ def scan_tag_directive_value(self, start_mark):
+ # See the specification for details.
+ while self.peek() == u' ':
+ self.forward()
+ handle = self.scan_tag_directive_handle(start_mark)
+ while self.peek() == u' ':
+ self.forward()
+ prefix = self.scan_tag_directive_prefix(start_mark)
+ return (handle, prefix)
+
+ def scan_tag_directive_handle(self, start_mark):
+ # See the specification for details.
+ value = self.scan_tag_handle('directive', start_mark)
+ ch = self.peek()
+ if ch != u' ':
+ raise ScannerError("while scanning a directive", start_mark,
+ "expected ' ', but found %r" % ch.encode('utf-8'),
+ self.get_mark())
+ return value
+
+ def scan_tag_directive_prefix(self, start_mark):
+ # See the specification for details.
+ value = self.scan_tag_uri('directive', start_mark)
+ ch = self.peek()
+ if ch not in u'\0 \r\n\x85\u2028\u2029':
+ raise ScannerError("while scanning a directive", start_mark,
+ "expected ' ', but found %r" % ch.encode('utf-8'),
+ self.get_mark())
+ return value
+
+ def scan_directive_ignored_line(self, start_mark):
+ # See the specification for details.
+ while self.peek() == u' ':
+ self.forward()
+ if self.peek() == u'#':
+ while self.peek() not in u'\0\r\n\x85\u2028\u2029':
+ self.forward()
+ ch = self.peek()
+ if ch not in u'\0\r\n\x85\u2028\u2029':
+ raise ScannerError("while scanning a directive", start_mark,
+ "expected a comment or a line break, but found %r"
+ % ch.encode('utf-8'), self.get_mark())
+ self.scan_line_break()
+
+ def scan_anchor(self, TokenClass):
+ # The specification does not restrict characters for anchors and
+ # aliases. This may lead to problems, for instance, the document:
+ # [ *alias, value ]
+ # can be interpteted in two ways, as
+ # [ "value" ]
+ # and
+ # [ *alias , "value" ]
+ # Therefore we restrict aliases to numbers and ASCII letters.
+ start_mark = self.get_mark()
+ indicator = self.peek()
+ if indicator == u'*':
+ name = 'alias'
+ else:
+ name = 'anchor'
+ self.forward()
+ length = 0
+ ch = self.peek(length)
+ while u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z' \
+ or ch in u'-_':
+ length += 1
+ ch = self.peek(length)
+ if not length:
+ raise ScannerError("while scanning an %s" % name, start_mark,
+ "expected alphabetic or numeric character, but found %r"
+ % ch.encode('utf-8'), self.get_mark())
+ value = self.prefix(length)
+ self.forward(length)
+ ch = self.peek()
+ if ch not in u'\0 \t\r\n\x85\u2028\u2029?:,]}%@`':
+ raise ScannerError("while scanning an %s" % name, start_mark,
+ "expected alphabetic or numeric character, but found %r"
+ % ch.encode('utf-8'), self.get_mark())
+ end_mark = self.get_mark()
+ return TokenClass(value, start_mark, end_mark)
+
+ def scan_tag(self):
+ # See the specification for details.
+ start_mark = self.get_mark()
+ ch = self.peek(1)
+ if ch == u'<':
+ handle = None
+ self.forward(2)
+ suffix = self.scan_tag_uri('tag', start_mark)
+ if self.peek() != u'>':
+ raise ScannerError("while parsing a tag", start_mark,
+ "expected '>', but found %r" % self.peek().encode('utf-8'),
+ self.get_mark())
+ self.forward()
+ elif ch in u'\0 \t\r\n\x85\u2028\u2029':
+ handle = None
+ suffix = u'!'
+ self.forward()
+ else:
+ length = 1
+ use_handle = False
+ while ch not in u'\0 \r\n\x85\u2028\u2029':
+ if ch == u'!':
+ use_handle = True
+ break
+ length += 1
+ ch = self.peek(length)
+ handle = u'!'
+ if use_handle:
+ handle = self.scan_tag_handle('tag', start_mark)
+ else:
+ handle = u'!'
+ self.forward()
+ suffix = self.scan_tag_uri('tag', start_mark)
+ ch = self.peek()
+ if ch not in u'\0 \r\n\x85\u2028\u2029':
+ raise ScannerError("while scanning a tag", start_mark,
+ "expected ' ', but found %r" % ch.encode('utf-8'),
+ self.get_mark())
+ value = (handle, suffix)
+ end_mark = self.get_mark()
+ return TagToken(value, start_mark, end_mark)
+
+ def scan_block_scalar(self, style):
+ # See the specification for details.
+
+ if style == '>':
+ folded = True
+ else:
+ folded = False
+
+ chunks = []
+ start_mark = self.get_mark()
+
+ # Scan the header.
+ self.forward()
+ chomping, increment = self.scan_block_scalar_indicators(start_mark)
+ self.scan_block_scalar_ignored_line(start_mark)
+
+ # Determine the indentation level and go to the first non-empty line.
+ min_indent = self.indent+1
+ if min_indent < 1:
+ min_indent = 1
+ if increment is None:
+ breaks, max_indent, end_mark = self.scan_block_scalar_indentation()
+ indent = max(min_indent, max_indent)
+ else:
+ indent = min_indent+increment-1
+ breaks, end_mark = self.scan_block_scalar_breaks(indent)
+ line_break = u''
+
+ # Scan the inner part of the block scalar.
+ while self.column == indent and self.peek() != u'\0':
+ chunks.extend(breaks)
+ leading_non_space = self.peek() not in u' \t'
+ length = 0
+ while self.peek(length) not in u'\0\r\n\x85\u2028\u2029':
+ length += 1
+ chunks.append(self.prefix(length))
+ self.forward(length)
+ line_break = self.scan_line_break()
+ breaks, end_mark = self.scan_block_scalar_breaks(indent)
+ if self.column == indent and self.peek() != u'\0':
+
+ # Unfortunately, folding rules are ambiguous.
+ #
+ # This is the folding according to the specification:
+
+ if folded and line_break == u'\n' \
+ and leading_non_space and self.peek() not in u' \t':
+ if not breaks:
+ chunks.append(u' ')
+ else:
+ chunks.append(line_break)
+
+ # This is Clark Evans's interpretation (also in the spec
+ # examples):
+ #
+ #if folded and line_break == u'\n':
+ # if not breaks:
+ # if self.peek() not in ' \t':
+ # chunks.append(u' ')
+ # else:
+ # chunks.append(line_break)
+ #else:
+ # chunks.append(line_break)
+ else:
+ break
+
+ # Chomp the tail.
+ if chomping is not False:
+ chunks.append(line_break)
+ if chomping is True:
+ chunks.extend(breaks)
+
+ # We are done.
+ return ScalarToken(u''.join(chunks), False, start_mark, end_mark,
+ style)
+
+ def scan_block_scalar_indicators(self, start_mark):
+ # See the specification for details.
+ chomping = None
+ increment = None
+ ch = self.peek()
+ if ch in u'+-':
+ if ch == '+':
+ chomping = True
+ else:
+ chomping = False
+ self.forward()
+ ch = self.peek()
+ if ch in u'0123456789':
+ increment = int(ch)
+ if increment == 0:
+ raise ScannerError("while scanning a block scalar", start_mark,
+ "expected indentation indicator in the range 1-9, but found 0",
+ self.get_mark())
+ self.forward()
+ elif ch in u'0123456789':
+ increment = int(ch)
+ if increment == 0:
+ raise ScannerError("while scanning a block scalar", start_mark,
+ "expected indentation indicator in the range 1-9, but found 0",
+ self.get_mark())
+ self.forward()
+ ch = self.peek()
+ if ch in u'+-':
+ if ch == '+':
+ chomping = True
+ else:
+ chomping = False
+ self.forward()
+ ch = self.peek()
+ if ch not in u'\0 \r\n\x85\u2028\u2029':
+ raise ScannerError("while scanning a block scalar", start_mark,
+ "expected chomping or indentation indicators, but found %r"
+ % ch.encode('utf-8'), self.get_mark())
+ return chomping, increment
+
+ def scan_block_scalar_ignored_line(self, start_mark):
+ # See the specification for details.
+ while self.peek() == u' ':
+ self.forward()
+ if self.peek() == u'#':
+ while self.peek() not in u'\0\r\n\x85\u2028\u2029':
+ self.forward()
+ ch = self.peek()
+ if ch not in u'\0\r\n\x85\u2028\u2029':
+ raise ScannerError("while scanning a block scalar", start_mark,
+ "expected a comment or a line break, but found %r"
+ % ch.encode('utf-8'), self.get_mark())
+ self.scan_line_break()
+
+ def scan_block_scalar_indentation(self):
+ # See the specification for details.
+ chunks = []
+ max_indent = 0
+ end_mark = self.get_mark()
+ while self.peek() in u' \r\n\x85\u2028\u2029':
+ if self.peek() != u' ':
+ chunks.append(self.scan_line_break())
+ end_mark = self.get_mark()
+ else:
+ self.forward()
+ if self.column > max_indent:
+ max_indent = self.column
+ return chunks, max_indent, end_mark
+
+ def scan_block_scalar_breaks(self, indent):
+ # See the specification for details.
+ chunks = []
+ end_mark = self.get_mark()
+ while self.column < indent and self.peek() == u' ':
+ self.forward()
+ while self.peek() in u'\r\n\x85\u2028\u2029':
+ chunks.append(self.scan_line_break())
+ end_mark = self.get_mark()
+ while self.column < indent and self.peek() == u' ':
+ self.forward()
+ return chunks, end_mark
+
+ def scan_flow_scalar(self, style):
+ # See the specification for details.
+ # Note that we loose indentation rules for quoted scalars. Quoted
+ # scalars don't need to adhere indentation because " and ' clearly
+ # mark the beginning and the end of them. Therefore we are less
+ # restrictive then the specification requires. We only need to check
+ # that document separators are not included in scalars.
+ if style == '"':
+ double = True
+ else:
+ double = False
+ chunks = []
+ start_mark = self.get_mark()
+ quote = self.peek()
+ self.forward()
+ chunks.extend(self.scan_flow_scalar_non_spaces(double, start_mark))
+ while self.peek() != quote:
+ chunks.extend(self.scan_flow_scalar_spaces(double, start_mark))
+ chunks.extend(self.scan_flow_scalar_non_spaces(double, start_mark))
+ self.forward()
+ end_mark = self.get_mark()
+ return ScalarToken(u''.join(chunks), False, start_mark, end_mark,
+ style)
+
+ ESCAPE_REPLACEMENTS = {
+ u'0': u'\0',
+ u'a': u'\x07',
+ u'b': u'\x08',
+ u't': u'\x09',
+ u'\t': u'\x09',
+ u'n': u'\x0A',
+ u'v': u'\x0B',
+ u'f': u'\x0C',
+ u'r': u'\x0D',
+ u'e': u'\x1B',
+ u' ': u'\x20',
+ u'\"': u'\"',
+ u'\\': u'\\',
+ u'N': u'\x85',
+ u'_': u'\xA0',
+ u'L': u'\u2028',
+ u'P': u'\u2029',
+ }
+
+ ESCAPE_CODES = {
+ u'x': 2,
+ u'u': 4,
+ u'U': 8,
+ }
+
+ def scan_flow_scalar_non_spaces(self, double, start_mark):
+ # See the specification for details.
+ chunks = []
+ while True:
+ length = 0
+ while self.peek(length) not in u'\'\"\\\0 \t\r\n\x85\u2028\u2029':
+ length += 1
+ if length:
+ chunks.append(self.prefix(length))
+ self.forward(length)
+ ch = self.peek()
+ if not double and ch == u'\'' and self.peek(1) == u'\'':
+ chunks.append(u'\'')
+ self.forward(2)
+ elif (double and ch == u'\'') or (not double and ch in u'\"\\'):
+ chunks.append(ch)
+ self.forward()
+ elif double and ch == u'\\':
+ self.forward()
+ ch = self.peek()
+ if ch in self.ESCAPE_REPLACEMENTS:
+ chunks.append(self.ESCAPE_REPLACEMENTS[ch])
+ self.forward()
+ elif ch in self.ESCAPE_CODES:
+ length = self.ESCAPE_CODES[ch]
+ self.forward()
+ for k in range(length):
+ if self.peek(k) not in u'0123456789ABCDEFabcdef':
+ raise ScannerError("while scanning a double-quoted scalar", start_mark,
+ "expected escape sequence of %d hexdecimal numbers, but found %r" %
+ (length, self.peek(k).encode('utf-8')), self.get_mark())
+ code = int(self.prefix(length), 16)
+ chunks.append(unichr(code))
+ self.forward(length)
+ elif ch in u'\r\n\x85\u2028\u2029':
+ self.scan_line_break()
+ chunks.extend(self.scan_flow_scalar_breaks(double, start_mark))
+ else:
+ raise ScannerError("while scanning a double-quoted scalar", start_mark,
+ "found unknown escape character %r" % ch.encode('utf-8'), self.get_mark())
+ else:
+ return chunks
+
+ def scan_flow_scalar_spaces(self, double, start_mark):
+ # See the specification for details.
+ chunks = []
+ length = 0
+ while self.peek(length) in u' \t':
+ length += 1
+ whitespaces = self.prefix(length)
+ self.forward(length)
+ ch = self.peek()
+ if ch == u'\0':
+ raise ScannerError("while scanning a quoted scalar", start_mark,
+ "found unexpected end of stream", self.get_mark())
+ elif ch in u'\r\n\x85\u2028\u2029':
+ line_break = self.scan_line_break()
+ breaks = self.scan_flow_scalar_breaks(double, start_mark)
+ if line_break != u'\n':
+ chunks.append(line_break)
+ elif not breaks:
+ chunks.append(u' ')
+ chunks.extend(breaks)
+ else:
+ chunks.append(whitespaces)
+ return chunks
+
+ def scan_flow_scalar_breaks(self, double, start_mark):
+ # See the specification for details.
+ chunks = []
+ while True:
+ # Instead of checking indentation, we check for document
+ # separators.
+ prefix = self.prefix(3)
+ if (prefix == u'---' or prefix == u'...') \
+ and self.peek(3) in u'\0 \t\r\n\x85\u2028\u2029':
+ raise ScannerError("while scanning a quoted scalar", start_mark,
+ "found unexpected document separator", self.get_mark())
+ while self.peek() in u' \t':
+ self.forward()
+ if self.peek() in u'\r\n\x85\u2028\u2029':
+ chunks.append(self.scan_line_break())
+ else:
+ return chunks
+
+ def scan_plain(self):
+ # See the specification for details.
+ # We add an additional restriction for the flow context:
+ # plain scalars in the flow context cannot contain ',', ':' and '?'.
+ # We also keep track of the `allow_simple_key` flag here.
+ # Indentation rules are loosed for the flow context.
+ chunks = []
+ start_mark = self.get_mark()
+ end_mark = start_mark
+ indent = self.indent+1
+ # We allow zero indentation for scalars, but then we need to check for
+ # document separators at the beginning of the line.
+ #if indent == 0:
+ # indent = 1
+ spaces = []
+ while True:
+ length = 0
+ if self.peek() == u'#':
+ break
+ while True:
+ ch = self.peek(length)
+ if ch in u'\0 \t\r\n\x85\u2028\u2029' \
+ or (not self.flow_level and ch == u':' and
+ self.peek(length+1) in u'\0 \t\r\n\x85\u2028\u2029') \
+ or (self.flow_level and ch in u',:?[]{}'):
+ break
+ length += 1
+ # It's not clear what we should do with ':' in the flow context.
+ if (self.flow_level and ch == u':'
+ and self.peek(length+1) not in u'\0 \t\r\n\x85\u2028\u2029,[]{}'):
+ self.forward(length)
+ raise ScannerError("while scanning a plain scalar", start_mark,
+ "found unexpected ':'", self.get_mark(),
+ "Please check http://pyyaml.org/wiki/YAMLColonInFlowContext for details.")
+ if length == 0:
+ break
+ self.allow_simple_key = False
+ chunks.extend(spaces)
+ chunks.append(self.prefix(length))
+ self.forward(length)
+ end_mark = self.get_mark()
+ spaces = self.scan_plain_spaces(indent, start_mark)
+ if not spaces or self.peek() == u'#' \
+ or (not self.flow_level and self.column < indent):
+ break
+ return ScalarToken(u''.join(chunks), True, start_mark, end_mark)
+
+ def scan_plain_spaces(self, indent, start_mark):
+ # See the specification for details.
+ # The specification is really confusing about tabs in plain scalars.
+ # We just forbid them completely. Do not use tabs in YAML!
+ chunks = []
+ length = 0
+ while self.peek(length) in u' ':
+ length += 1
+ whitespaces = self.prefix(length)
+ self.forward(length)
+ ch = self.peek()
+ if ch in u'\r\n\x85\u2028\u2029':
+ line_break = self.scan_line_break()
+ self.allow_simple_key = True
+ prefix = self.prefix(3)
+ if (prefix == u'---' or prefix == u'...') \
+ and self.peek(3) in u'\0 \t\r\n\x85\u2028\u2029':
+ return
+ breaks = []
+ while self.peek() in u' \r\n\x85\u2028\u2029':
+ if self.peek() == ' ':
+ self.forward()
+ else:
+ breaks.append(self.scan_line_break())
+ prefix = self.prefix(3)
+ if (prefix == u'---' or prefix == u'...') \
+ and self.peek(3) in u'\0 \t\r\n\x85\u2028\u2029':
+ return
+ if line_break != u'\n':
+ chunks.append(line_break)
+ elif not breaks:
+ chunks.append(u' ')
+ chunks.extend(breaks)
+ elif whitespaces:
+ chunks.append(whitespaces)
+ return chunks
+
+ def scan_tag_handle(self, name, start_mark):
+ # See the specification for details.
+ # For some strange reasons, the specification does not allow '_' in
+ # tag handles. I have allowed it anyway.
+ ch = self.peek()
+ if ch != u'!':
+ raise ScannerError("while scanning a %s" % name, start_mark,
+ "expected '!', but found %r" % ch.encode('utf-8'),
+ self.get_mark())
+ length = 1
+ ch = self.peek(length)
+ if ch != u' ':
+ while u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z' \
+ or ch in u'-_':
+ length += 1
+ ch = self.peek(length)
+ if ch != u'!':
+ self.forward(length)
+ raise ScannerError("while scanning a %s" % name, start_mark,
+ "expected '!', but found %r" % ch.encode('utf-8'),
+ self.get_mark())
+ length += 1
+ value = self.prefix(length)
+ self.forward(length)
+ return value
+
+ def scan_tag_uri(self, name, start_mark):
+ # See the specification for details.
+ # Note: we do not check if URI is well-formed.
+ chunks = []
+ length = 0
+ ch = self.peek(length)
+ while u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z' \
+ or ch in u'-;/?:@&=+$,_.!~*\'()[]%':
+ if ch == u'%':
+ chunks.append(self.prefix(length))
+ self.forward(length)
+ length = 0
+ chunks.append(self.scan_uri_escapes(name, start_mark))
+ else:
+ length += 1
+ ch = self.peek(length)
+ if length:
+ chunks.append(self.prefix(length))
+ self.forward(length)
+ length = 0
+ if not chunks:
+ raise ScannerError("while parsing a %s" % name, start_mark,
+ "expected URI, but found %r" % ch.encode('utf-8'),
+ self.get_mark())
+ return u''.join(chunks)
+
+ def scan_uri_escapes(self, name, start_mark):
+ # See the specification for details.
+ bytes = []
+ mark = self.get_mark()
+ while self.peek() == u'%':
+ self.forward()
+ for k in range(2):
+ if self.peek(k) not in u'0123456789ABCDEFabcdef':
+ raise ScannerError("while scanning a %s" % name, start_mark,
+ "expected URI escape sequence of 2 hexdecimal numbers, but found %r" %
+ (self.peek(k).encode('utf-8')), self.get_mark())
+ bytes.append(chr(int(self.prefix(2), 16)))
+ self.forward(2)
+ try:
+ value = unicode(''.join(bytes), 'utf-8')
+ except UnicodeDecodeError, exc:
+ raise ScannerError("while scanning a %s" % name, start_mark, str(exc), mark)
+ return value
+
+ def scan_line_break(self):
+ # Transforms:
+ # '\r\n' : '\n'
+ # '\r' : '\n'
+ # '\n' : '\n'
+ # '\x85' : '\n'
+ # '\u2028' : '\u2028'
+ # '\u2029 : '\u2029'
+ # default : ''
+ ch = self.peek()
+ if ch in u'\r\n\x85':
+ if self.prefix(2) == u'\r\n':
+ self.forward(2)
+ else:
+ self.forward()
+ return u'\n'
+ elif ch in u'\u2028\u2029':
+ self.forward()
+ return ch
+ return u''
+
+#try:
+# import psyco
+# psyco.bind(Scanner)
+#except ImportError:
+# pass
+
diff --git a/python.d/python_modules/pyyaml2/serializer.py b/python.d/python_modules/pyyaml2/serializer.py
new file mode 100644
index 000000000..0bf1e96dc
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/serializer.py
@@ -0,0 +1,111 @@
+
+__all__ = ['Serializer', 'SerializerError']
+
+from error import YAMLError
+from events import *
+from nodes import *
+
+class SerializerError(YAMLError):
+ pass
+
+class Serializer(object):
+
+ ANCHOR_TEMPLATE = u'id%03d'
+
+ def __init__(self, encoding=None,
+ explicit_start=None, explicit_end=None, version=None, tags=None):
+ self.use_encoding = encoding
+ self.use_explicit_start = explicit_start
+ self.use_explicit_end = explicit_end
+ self.use_version = version
+ self.use_tags = tags
+ self.serialized_nodes = {}
+ self.anchors = {}
+ self.last_anchor_id = 0
+ self.closed = None
+
+ def open(self):
+ if self.closed is None:
+ self.emit(StreamStartEvent(encoding=self.use_encoding))
+ self.closed = False
+ elif self.closed:
+ raise SerializerError("serializer is closed")
+ else:
+ raise SerializerError("serializer is already opened")
+
+ def close(self):
+ if self.closed is None:
+ raise SerializerError("serializer is not opened")
+ elif not self.closed:
+ self.emit(StreamEndEvent())
+ self.closed = True
+
+ #def __del__(self):
+ # self.close()
+
+ def serialize(self, node):
+ if self.closed is None:
+ raise SerializerError("serializer is not opened")
+ elif self.closed:
+ raise SerializerError("serializer is closed")
+ self.emit(DocumentStartEvent(explicit=self.use_explicit_start,
+ version=self.use_version, tags=self.use_tags))
+ self.anchor_node(node)
+ self.serialize_node(node, None, None)
+ self.emit(DocumentEndEvent(explicit=self.use_explicit_end))
+ self.serialized_nodes = {}
+ self.anchors = {}
+ self.last_anchor_id = 0
+
+ def anchor_node(self, node):
+ if node in self.anchors:
+ if self.anchors[node] is None:
+ self.anchors[node] = self.generate_anchor(node)
+ else:
+ self.anchors[node] = None
+ if isinstance(node, SequenceNode):
+ for item in node.value:
+ self.anchor_node(item)
+ elif isinstance(node, MappingNode):
+ for key, value in node.value:
+ self.anchor_node(key)
+ self.anchor_node(value)
+
+ def generate_anchor(self, node):
+ self.last_anchor_id += 1
+ return self.ANCHOR_TEMPLATE % self.last_anchor_id
+
+ def serialize_node(self, node, parent, index):
+ alias = self.anchors[node]
+ if node in self.serialized_nodes:
+ self.emit(AliasEvent(alias))
+ else:
+ self.serialized_nodes[node] = True
+ self.descend_resolver(parent, index)
+ if isinstance(node, ScalarNode):
+ detected_tag = self.resolve(ScalarNode, node.value, (True, False))
+ default_tag = self.resolve(ScalarNode, node.value, (False, True))
+ implicit = (node.tag == detected_tag), (node.tag == default_tag)
+ self.emit(ScalarEvent(alias, node.tag, implicit, node.value,
+ style=node.style))
+ elif isinstance(node, SequenceNode):
+ implicit = (node.tag
+ == self.resolve(SequenceNode, node.value, True))
+ self.emit(SequenceStartEvent(alias, node.tag, implicit,
+ flow_style=node.flow_style))
+ index = 0
+ for item in node.value:
+ self.serialize_node(item, node, index)
+ index += 1
+ self.emit(SequenceEndEvent())
+ elif isinstance(node, MappingNode):
+ implicit = (node.tag
+ == self.resolve(MappingNode, node.value, True))
+ self.emit(MappingStartEvent(alias, node.tag, implicit,
+ flow_style=node.flow_style))
+ for key, value in node.value:
+ self.serialize_node(key, node, None)
+ self.serialize_node(value, node, key)
+ self.emit(MappingEndEvent())
+ self.ascend_resolver()
+
diff --git a/python.d/python_modules/pyyaml2/tokens.py b/python.d/python_modules/pyyaml2/tokens.py
new file mode 100644
index 000000000..4d0b48a39
--- /dev/null
+++ b/python.d/python_modules/pyyaml2/tokens.py
@@ -0,0 +1,104 @@
+
+class Token(object):
+ def __init__(self, start_mark, end_mark):
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ def __repr__(self):
+ attributes = [key for key in self.__dict__
+ if not key.endswith('_mark')]
+ attributes.sort()
+ arguments = ', '.join(['%s=%r' % (key, getattr(self, key))
+ for key in attributes])
+ return '%s(%s)' % (self.__class__.__name__, arguments)
+
+#class BOMToken(Token):
+# id = '<byte order mark>'
+
+class DirectiveToken(Token):
+ id = '<directive>'
+ def __init__(self, name, value, start_mark, end_mark):
+ self.name = name
+ self.value = value
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+
+class DocumentStartToken(Token):
+ id = '<document start>'
+
+class DocumentEndToken(Token):
+ id = '<document end>'
+
+class StreamStartToken(Token):
+ id = '<stream start>'
+ def __init__(self, start_mark=None, end_mark=None,
+ encoding=None):
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.encoding = encoding
+
+class StreamEndToken(Token):
+ id = '<stream end>'
+
+class BlockSequenceStartToken(Token):
+ id = '<block sequence start>'
+
+class BlockMappingStartToken(Token):
+ id = '<block mapping start>'
+
+class BlockEndToken(Token):
+ id = '<block end>'
+
+class FlowSequenceStartToken(Token):
+ id = '['
+
+class FlowMappingStartToken(Token):
+ id = '{'
+
+class FlowSequenceEndToken(Token):
+ id = ']'
+
+class FlowMappingEndToken(Token):
+ id = '}'
+
+class KeyToken(Token):
+ id = '?'
+
+class ValueToken(Token):
+ id = ':'
+
+class BlockEntryToken(Token):
+ id = '-'
+
+class FlowEntryToken(Token):
+ id = ','
+
+class AliasToken(Token):
+ id = '<alias>'
+ def __init__(self, value, start_mark, end_mark):
+ self.value = value
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+
+class AnchorToken(Token):
+ id = '<anchor>'
+ def __init__(self, value, start_mark, end_mark):
+ self.value = value
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+
+class TagToken(Token):
+ id = '<tag>'
+ def __init__(self, value, start_mark, end_mark):
+ self.value = value
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+
+class ScalarToken(Token):
+ id = '<scalar>'
+ def __init__(self, value, plain, start_mark, end_mark, style=None):
+ self.value = value
+ self.plain = plain
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.style = style
+
diff --git a/python.d/python_modules/pyyaml3/__init__.py b/python.d/python_modules/pyyaml3/__init__.py
new file mode 100644
index 000000000..a5e20f94d
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/__init__.py
@@ -0,0 +1,312 @@
+
+from .error import *
+
+from .tokens import *
+from .events import *
+from .nodes import *
+
+from .loader import *
+from .dumper import *
+
+__version__ = '3.11'
+try:
+ from .cyaml import *
+ __with_libyaml__ = True
+except ImportError:
+ __with_libyaml__ = False
+
+import io
+
+def scan(stream, Loader=Loader):
+ """
+ Scan a YAML stream and produce scanning tokens.
+ """
+ loader = Loader(stream)
+ try:
+ while loader.check_token():
+ yield loader.get_token()
+ finally:
+ loader.dispose()
+
+def parse(stream, Loader=Loader):
+ """
+ Parse a YAML stream and produce parsing events.
+ """
+ loader = Loader(stream)
+ try:
+ while loader.check_event():
+ yield loader.get_event()
+ finally:
+ loader.dispose()
+
+def compose(stream, Loader=Loader):
+ """
+ Parse the first YAML document in a stream
+ and produce the corresponding representation tree.
+ """
+ loader = Loader(stream)
+ try:
+ return loader.get_single_node()
+ finally:
+ loader.dispose()
+
+def compose_all(stream, Loader=Loader):
+ """
+ Parse all YAML documents in a stream
+ and produce corresponding representation trees.
+ """
+ loader = Loader(stream)
+ try:
+ while loader.check_node():
+ yield loader.get_node()
+ finally:
+ loader.dispose()
+
+def load(stream, Loader=Loader):
+ """
+ Parse the first YAML document in a stream
+ and produce the corresponding Python object.
+ """
+ loader = Loader(stream)
+ try:
+ return loader.get_single_data()
+ finally:
+ loader.dispose()
+
+def load_all(stream, Loader=Loader):
+ """
+ Parse all YAML documents in a stream
+ and produce corresponding Python objects.
+ """
+ loader = Loader(stream)
+ try:
+ while loader.check_data():
+ yield loader.get_data()
+ finally:
+ loader.dispose()
+
+def safe_load(stream):
+ """
+ Parse the first YAML document in a stream
+ and produce the corresponding Python object.
+ Resolve only basic YAML tags.
+ """
+ return load(stream, SafeLoader)
+
+def safe_load_all(stream):
+ """
+ Parse all YAML documents in a stream
+ and produce corresponding Python objects.
+ Resolve only basic YAML tags.
+ """
+ return load_all(stream, SafeLoader)
+
+def emit(events, stream=None, Dumper=Dumper,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None):
+ """
+ Emit YAML parsing events into a stream.
+ If stream is None, return the produced string instead.
+ """
+ getvalue = None
+ if stream is None:
+ stream = io.StringIO()
+ getvalue = stream.getvalue
+ dumper = Dumper(stream, canonical=canonical, indent=indent, width=width,
+ allow_unicode=allow_unicode, line_break=line_break)
+ try:
+ for event in events:
+ dumper.emit(event)
+ finally:
+ dumper.dispose()
+ if getvalue:
+ return getvalue()
+
+def serialize_all(nodes, stream=None, Dumper=Dumper,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None,
+ encoding=None, explicit_start=None, explicit_end=None,
+ version=None, tags=None):
+ """
+ Serialize a sequence of representation trees into a YAML stream.
+ If stream is None, return the produced string instead.
+ """
+ getvalue = None
+ if stream is None:
+ if encoding is None:
+ stream = io.StringIO()
+ else:
+ stream = io.BytesIO()
+ getvalue = stream.getvalue
+ dumper = Dumper(stream, canonical=canonical, indent=indent, width=width,
+ allow_unicode=allow_unicode, line_break=line_break,
+ encoding=encoding, version=version, tags=tags,
+ explicit_start=explicit_start, explicit_end=explicit_end)
+ try:
+ dumper.open()
+ for node in nodes:
+ dumper.serialize(node)
+ dumper.close()
+ finally:
+ dumper.dispose()
+ if getvalue:
+ return getvalue()
+
+def serialize(node, stream=None, Dumper=Dumper, **kwds):
+ """
+ Serialize a representation tree into a YAML stream.
+ If stream is None, return the produced string instead.
+ """
+ return serialize_all([node], stream, Dumper=Dumper, **kwds)
+
+def dump_all(documents, stream=None, Dumper=Dumper,
+ default_style=None, default_flow_style=None,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None,
+ encoding=None, explicit_start=None, explicit_end=None,
+ version=None, tags=None):
+ """
+ Serialize a sequence of Python objects into a YAML stream.
+ If stream is None, return the produced string instead.
+ """
+ getvalue = None
+ if stream is None:
+ if encoding is None:
+ stream = io.StringIO()
+ else:
+ stream = io.BytesIO()
+ getvalue = stream.getvalue
+ dumper = Dumper(stream, default_style=default_style,
+ default_flow_style=default_flow_style,
+ canonical=canonical, indent=indent, width=width,
+ allow_unicode=allow_unicode, line_break=line_break,
+ encoding=encoding, version=version, tags=tags,
+ explicit_start=explicit_start, explicit_end=explicit_end)
+ try:
+ dumper.open()
+ for data in documents:
+ dumper.represent(data)
+ dumper.close()
+ finally:
+ dumper.dispose()
+ if getvalue:
+ return getvalue()
+
+def dump(data, stream=None, Dumper=Dumper, **kwds):
+ """
+ Serialize a Python object into a YAML stream.
+ If stream is None, return the produced string instead.
+ """
+ return dump_all([data], stream, Dumper=Dumper, **kwds)
+
+def safe_dump_all(documents, stream=None, **kwds):
+ """
+ Serialize a sequence of Python objects into a YAML stream.
+ Produce only basic YAML tags.
+ If stream is None, return the produced string instead.
+ """
+ return dump_all(documents, stream, Dumper=SafeDumper, **kwds)
+
+def safe_dump(data, stream=None, **kwds):
+ """
+ Serialize a Python object into a YAML stream.
+ Produce only basic YAML tags.
+ If stream is None, return the produced string instead.
+ """
+ return dump_all([data], stream, Dumper=SafeDumper, **kwds)
+
+def add_implicit_resolver(tag, regexp, first=None,
+ Loader=Loader, Dumper=Dumper):
+ """
+ Add an implicit scalar detector.
+ If an implicit scalar value matches the given regexp,
+ the corresponding tag is assigned to the scalar.
+ first is a sequence of possible initial characters or None.
+ """
+ Loader.add_implicit_resolver(tag, regexp, first)
+ Dumper.add_implicit_resolver(tag, regexp, first)
+
+def add_path_resolver(tag, path, kind=None, Loader=Loader, Dumper=Dumper):
+ """
+ Add a path based resolver for the given tag.
+ A path is a list of keys that forms a path
+ to a node in the representation tree.
+ Keys can be string values, integers, or None.
+ """
+ Loader.add_path_resolver(tag, path, kind)
+ Dumper.add_path_resolver(tag, path, kind)
+
+def add_constructor(tag, constructor, Loader=Loader):
+ """
+ Add a constructor for the given tag.
+ Constructor is a function that accepts a Loader instance
+ and a node object and produces the corresponding Python object.
+ """
+ Loader.add_constructor(tag, constructor)
+
+def add_multi_constructor(tag_prefix, multi_constructor, Loader=Loader):
+ """
+ Add a multi-constructor for the given tag prefix.
+ Multi-constructor is called for a node if its tag starts with tag_prefix.
+ Multi-constructor accepts a Loader instance, a tag suffix,
+ and a node object and produces the corresponding Python object.
+ """
+ Loader.add_multi_constructor(tag_prefix, multi_constructor)
+
+def add_representer(data_type, representer, Dumper=Dumper):
+ """
+ Add a representer for the given type.
+ Representer is a function accepting a Dumper instance
+ and an instance of the given data type
+ and producing the corresponding representation node.
+ """
+ Dumper.add_representer(data_type, representer)
+
+def add_multi_representer(data_type, multi_representer, Dumper=Dumper):
+ """
+ Add a representer for the given type.
+ Multi-representer is a function accepting a Dumper instance
+ and an instance of the given data type or subtype
+ and producing the corresponding representation node.
+ """
+ Dumper.add_multi_representer(data_type, multi_representer)
+
+class YAMLObjectMetaclass(type):
+ """
+ The metaclass for YAMLObject.
+ """
+ def __init__(cls, name, bases, kwds):
+ super(YAMLObjectMetaclass, cls).__init__(name, bases, kwds)
+ if 'yaml_tag' in kwds and kwds['yaml_tag'] is not None:
+ cls.yaml_loader.add_constructor(cls.yaml_tag, cls.from_yaml)
+ cls.yaml_dumper.add_representer(cls, cls.to_yaml)
+
+class YAMLObject(metaclass=YAMLObjectMetaclass):
+ """
+ An object that can dump itself to a YAML stream
+ and load itself from a YAML stream.
+ """
+
+ __slots__ = () # no direct instantiation, so allow immutable subclasses
+
+ yaml_loader = Loader
+ yaml_dumper = Dumper
+
+ yaml_tag = None
+ yaml_flow_style = None
+
+ @classmethod
+ def from_yaml(cls, loader, node):
+ """
+ Convert a representation node to a Python object.
+ """
+ return loader.construct_yaml_object(node, cls)
+
+ @classmethod
+ def to_yaml(cls, dumper, data):
+ """
+ Convert a Python object to a representation node.
+ """
+ return dumper.represent_yaml_object(cls.yaml_tag, data, cls,
+ flow_style=cls.yaml_flow_style)
+
diff --git a/python.d/python_modules/pyyaml3/composer.py b/python.d/python_modules/pyyaml3/composer.py
new file mode 100644
index 000000000..d5c6a7acd
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/composer.py
@@ -0,0 +1,139 @@
+
+__all__ = ['Composer', 'ComposerError']
+
+from .error import MarkedYAMLError
+from .events import *
+from .nodes import *
+
+class ComposerError(MarkedYAMLError):
+ pass
+
+class Composer:
+
+ def __init__(self):
+ self.anchors = {}
+
+ def check_node(self):
+ # Drop the STREAM-START event.
+ if self.check_event(StreamStartEvent):
+ self.get_event()
+
+ # If there are more documents available?
+ return not self.check_event(StreamEndEvent)
+
+ def get_node(self):
+ # Get the root node of the next document.
+ if not self.check_event(StreamEndEvent):
+ return self.compose_document()
+
+ def get_single_node(self):
+ # Drop the STREAM-START event.
+ self.get_event()
+
+ # Compose a document if the stream is not empty.
+ document = None
+ if not self.check_event(StreamEndEvent):
+ document = self.compose_document()
+
+ # Ensure that the stream contains no more documents.
+ if not self.check_event(StreamEndEvent):
+ event = self.get_event()
+ raise ComposerError("expected a single document in the stream",
+ document.start_mark, "but found another document",
+ event.start_mark)
+
+ # Drop the STREAM-END event.
+ self.get_event()
+
+ return document
+
+ def compose_document(self):
+ # Drop the DOCUMENT-START event.
+ self.get_event()
+
+ # Compose the root node.
+ node = self.compose_node(None, None)
+
+ # Drop the DOCUMENT-END event.
+ self.get_event()
+
+ self.anchors = {}
+ return node
+
+ def compose_node(self, parent, index):
+ if self.check_event(AliasEvent):
+ event = self.get_event()
+ anchor = event.anchor
+ if anchor not in self.anchors:
+ raise ComposerError(None, None, "found undefined alias %r"
+ % anchor, event.start_mark)
+ return self.anchors[anchor]
+ event = self.peek_event()
+ anchor = event.anchor
+ if anchor is not None:
+ if anchor in self.anchors:
+ raise ComposerError("found duplicate anchor %r; first occurence"
+ % anchor, self.anchors[anchor].start_mark,
+ "second occurence", event.start_mark)
+ self.descend_resolver(parent, index)
+ if self.check_event(ScalarEvent):
+ node = self.compose_scalar_node(anchor)
+ elif self.check_event(SequenceStartEvent):
+ node = self.compose_sequence_node(anchor)
+ elif self.check_event(MappingStartEvent):
+ node = self.compose_mapping_node(anchor)
+ self.ascend_resolver()
+ return node
+
+ def compose_scalar_node(self, anchor):
+ event = self.get_event()
+ tag = event.tag
+ if tag is None or tag == '!':
+ tag = self.resolve(ScalarNode, event.value, event.implicit)
+ node = ScalarNode(tag, event.value,
+ event.start_mark, event.end_mark, style=event.style)
+ if anchor is not None:
+ self.anchors[anchor] = node
+ return node
+
+ def compose_sequence_node(self, anchor):
+ start_event = self.get_event()
+ tag = start_event.tag
+ if tag is None or tag == '!':
+ tag = self.resolve(SequenceNode, None, start_event.implicit)
+ node = SequenceNode(tag, [],
+ start_event.start_mark, None,
+ flow_style=start_event.flow_style)
+ if anchor is not None:
+ self.anchors[anchor] = node
+ index = 0
+ while not self.check_event(SequenceEndEvent):
+ node.value.append(self.compose_node(node, index))
+ index += 1
+ end_event = self.get_event()
+ node.end_mark = end_event.end_mark
+ return node
+
+ def compose_mapping_node(self, anchor):
+ start_event = self.get_event()
+ tag = start_event.tag
+ if tag is None or tag == '!':
+ tag = self.resolve(MappingNode, None, start_event.implicit)
+ node = MappingNode(tag, [],
+ start_event.start_mark, None,
+ flow_style=start_event.flow_style)
+ if anchor is not None:
+ self.anchors[anchor] = node
+ while not self.check_event(MappingEndEvent):
+ #key_event = self.peek_event()
+ item_key = self.compose_node(node, None)
+ #if item_key in node.value:
+ # raise ComposerError("while composing a mapping", start_event.start_mark,
+ # "found duplicate key", key_event.start_mark)
+ item_value = self.compose_node(node, item_key)
+ #node.value[item_key] = item_value
+ node.value.append((item_key, item_value))
+ end_event = self.get_event()
+ node.end_mark = end_event.end_mark
+ return node
+
diff --git a/python.d/python_modules/pyyaml3/constructor.py b/python.d/python_modules/pyyaml3/constructor.py
new file mode 100644
index 000000000..981543aeb
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/constructor.py
@@ -0,0 +1,686 @@
+
+__all__ = ['BaseConstructor', 'SafeConstructor', 'Constructor',
+ 'ConstructorError']
+
+from .error import *
+from .nodes import *
+
+import collections, datetime, base64, binascii, re, sys, types
+
+class ConstructorError(MarkedYAMLError):
+ pass
+
+class BaseConstructor:
+
+ yaml_constructors = {}
+ yaml_multi_constructors = {}
+
+ def __init__(self):
+ self.constructed_objects = {}
+ self.recursive_objects = {}
+ self.state_generators = []
+ self.deep_construct = False
+
+ def check_data(self):
+ # If there are more documents available?
+ return self.check_node()
+
+ def get_data(self):
+ # Construct and return the next document.
+ if self.check_node():
+ return self.construct_document(self.get_node())
+
+ def get_single_data(self):
+ # Ensure that the stream contains a single document and construct it.
+ node = self.get_single_node()
+ if node is not None:
+ return self.construct_document(node)
+ return None
+
+ def construct_document(self, node):
+ data = self.construct_object(node)
+ while self.state_generators:
+ state_generators = self.state_generators
+ self.state_generators = []
+ for generator in state_generators:
+ for dummy in generator:
+ pass
+ self.constructed_objects = {}
+ self.recursive_objects = {}
+ self.deep_construct = False
+ return data
+
+ def construct_object(self, node, deep=False):
+ if node in self.constructed_objects:
+ return self.constructed_objects[node]
+ if deep:
+ old_deep = self.deep_construct
+ self.deep_construct = True
+ if node in self.recursive_objects:
+ raise ConstructorError(None, None,
+ "found unconstructable recursive node", node.start_mark)
+ self.recursive_objects[node] = None
+ constructor = None
+ tag_suffix = None
+ if node.tag in self.yaml_constructors:
+ constructor = self.yaml_constructors[node.tag]
+ else:
+ for tag_prefix in self.yaml_multi_constructors:
+ if node.tag.startswith(tag_prefix):
+ tag_suffix = node.tag[len(tag_prefix):]
+ constructor = self.yaml_multi_constructors[tag_prefix]
+ break
+ else:
+ if None in self.yaml_multi_constructors:
+ tag_suffix = node.tag
+ constructor = self.yaml_multi_constructors[None]
+ elif None in self.yaml_constructors:
+ constructor = self.yaml_constructors[None]
+ elif isinstance(node, ScalarNode):
+ constructor = self.__class__.construct_scalar
+ elif isinstance(node, SequenceNode):
+ constructor = self.__class__.construct_sequence
+ elif isinstance(node, MappingNode):
+ constructor = self.__class__.construct_mapping
+ if tag_suffix is None:
+ data = constructor(self, node)
+ else:
+ data = constructor(self, tag_suffix, node)
+ if isinstance(data, types.GeneratorType):
+ generator = data
+ data = next(generator)
+ if self.deep_construct:
+ for dummy in generator:
+ pass
+ else:
+ self.state_generators.append(generator)
+ self.constructed_objects[node] = data
+ del self.recursive_objects[node]
+ if deep:
+ self.deep_construct = old_deep
+ return data
+
+ def construct_scalar(self, node):
+ if not isinstance(node, ScalarNode):
+ raise ConstructorError(None, None,
+ "expected a scalar node, but found %s" % node.id,
+ node.start_mark)
+ return node.value
+
+ def construct_sequence(self, node, deep=False):
+ if not isinstance(node, SequenceNode):
+ raise ConstructorError(None, None,
+ "expected a sequence node, but found %s" % node.id,
+ node.start_mark)
+ return [self.construct_object(child, deep=deep)
+ for child in node.value]
+
+ def construct_mapping(self, node, deep=False):
+ if not isinstance(node, MappingNode):
+ raise ConstructorError(None, None,
+ "expected a mapping node, but found %s" % node.id,
+ node.start_mark)
+ mapping = {}
+ for key_node, value_node in node.value:
+ key = self.construct_object(key_node, deep=deep)
+ if not isinstance(key, collections.Hashable):
+ raise ConstructorError("while constructing a mapping", node.start_mark,
+ "found unhashable key", key_node.start_mark)
+ value = self.construct_object(value_node, deep=deep)
+ mapping[key] = value
+ return mapping
+
+ def construct_pairs(self, node, deep=False):
+ if not isinstance(node, MappingNode):
+ raise ConstructorError(None, None,
+ "expected a mapping node, but found %s" % node.id,
+ node.start_mark)
+ pairs = []
+ for key_node, value_node in node.value:
+ key = self.construct_object(key_node, deep=deep)
+ value = self.construct_object(value_node, deep=deep)
+ pairs.append((key, value))
+ return pairs
+
+ @classmethod
+ def add_constructor(cls, tag, constructor):
+ if not 'yaml_constructors' in cls.__dict__:
+ cls.yaml_constructors = cls.yaml_constructors.copy()
+ cls.yaml_constructors[tag] = constructor
+
+ @classmethod
+ def add_multi_constructor(cls, tag_prefix, multi_constructor):
+ if not 'yaml_multi_constructors' in cls.__dict__:
+ cls.yaml_multi_constructors = cls.yaml_multi_constructors.copy()
+ cls.yaml_multi_constructors[tag_prefix] = multi_constructor
+
+class SafeConstructor(BaseConstructor):
+
+ def construct_scalar(self, node):
+ if isinstance(node, MappingNode):
+ for key_node, value_node in node.value:
+ if key_node.tag == 'tag:yaml.org,2002:value':
+ return self.construct_scalar(value_node)
+ return super().construct_scalar(node)
+
+ def flatten_mapping(self, node):
+ merge = []
+ index = 0
+ while index < len(node.value):
+ key_node, value_node = node.value[index]
+ if key_node.tag == 'tag:yaml.org,2002:merge':
+ del node.value[index]
+ if isinstance(value_node, MappingNode):
+ self.flatten_mapping(value_node)
+ merge.extend(value_node.value)
+ elif isinstance(value_node, SequenceNode):
+ submerge = []
+ for subnode in value_node.value:
+ if not isinstance(subnode, MappingNode):
+ raise ConstructorError("while constructing a mapping",
+ node.start_mark,
+ "expected a mapping for merging, but found %s"
+ % subnode.id, subnode.start_mark)
+ self.flatten_mapping(subnode)
+ submerge.append(subnode.value)
+ submerge.reverse()
+ for value in submerge:
+ merge.extend(value)
+ else:
+ raise ConstructorError("while constructing a mapping", node.start_mark,
+ "expected a mapping or list of mappings for merging, but found %s"
+ % value_node.id, value_node.start_mark)
+ elif key_node.tag == 'tag:yaml.org,2002:value':
+ key_node.tag = 'tag:yaml.org,2002:str'
+ index += 1
+ else:
+ index += 1
+ if merge:
+ node.value = merge + node.value
+
+ def construct_mapping(self, node, deep=False):
+ if isinstance(node, MappingNode):
+ self.flatten_mapping(node)
+ return super().construct_mapping(node, deep=deep)
+
+ def construct_yaml_null(self, node):
+ self.construct_scalar(node)
+ return None
+
+ bool_values = {
+ 'yes': True,
+ 'no': False,
+ 'true': True,
+ 'false': False,
+ 'on': True,
+ 'off': False,
+ }
+
+ def construct_yaml_bool(self, node):
+ value = self.construct_scalar(node)
+ return self.bool_values[value.lower()]
+
+ def construct_yaml_int(self, node):
+ value = self.construct_scalar(node)
+ value = value.replace('_', '')
+ sign = +1
+ if value[0] == '-':
+ sign = -1
+ if value[0] in '+-':
+ value = value[1:]
+ if value == '0':
+ return 0
+ elif value.startswith('0b'):
+ return sign*int(value[2:], 2)
+ elif value.startswith('0x'):
+ return sign*int(value[2:], 16)
+ elif value[0] == '0':
+ return sign*int(value, 8)
+ elif ':' in value:
+ digits = [int(part) for part in value.split(':')]
+ digits.reverse()
+ base = 1
+ value = 0
+ for digit in digits:
+ value += digit*base
+ base *= 60
+ return sign*value
+ else:
+ return sign*int(value)
+
+ inf_value = 1e300
+ while inf_value != inf_value*inf_value:
+ inf_value *= inf_value
+ nan_value = -inf_value/inf_value # Trying to make a quiet NaN (like C99).
+
+ def construct_yaml_float(self, node):
+ value = self.construct_scalar(node)
+ value = value.replace('_', '').lower()
+ sign = +1
+ if value[0] == '-':
+ sign = -1
+ if value[0] in '+-':
+ value = value[1:]
+ if value == '.inf':
+ return sign*self.inf_value
+ elif value == '.nan':
+ return self.nan_value
+ elif ':' in value:
+ digits = [float(part) for part in value.split(':')]
+ digits.reverse()
+ base = 1
+ value = 0.0
+ for digit in digits:
+ value += digit*base
+ base *= 60
+ return sign*value
+ else:
+ return sign*float(value)
+
+ def construct_yaml_binary(self, node):
+ try:
+ value = self.construct_scalar(node).encode('ascii')
+ except UnicodeEncodeError as exc:
+ raise ConstructorError(None, None,
+ "failed to convert base64 data into ascii: %s" % exc,
+ node.start_mark)
+ try:
+ if hasattr(base64, 'decodebytes'):
+ return base64.decodebytes(value)
+ else:
+ return base64.decodestring(value)
+ except binascii.Error as exc:
+ raise ConstructorError(None, None,
+ "failed to decode base64 data: %s" % exc, node.start_mark)
+
+ timestamp_regexp = re.compile(
+ r'''^(?P<year>[0-9][0-9][0-9][0-9])
+ -(?P<month>[0-9][0-9]?)
+ -(?P<day>[0-9][0-9]?)
+ (?:(?:[Tt]|[ \t]+)
+ (?P<hour>[0-9][0-9]?)
+ :(?P<minute>[0-9][0-9])
+ :(?P<second>[0-9][0-9])
+ (?:\.(?P<fraction>[0-9]*))?
+ (?:[ \t]*(?P<tz>Z|(?P<tz_sign>[-+])(?P<tz_hour>[0-9][0-9]?)
+ (?::(?P<tz_minute>[0-9][0-9]))?))?)?$''', re.X)
+
+ def construct_yaml_timestamp(self, node):
+ value = self.construct_scalar(node)
+ match = self.timestamp_regexp.match(node.value)
+ values = match.groupdict()
+ year = int(values['year'])
+ month = int(values['month'])
+ day = int(values['day'])
+ if not values['hour']:
+ return datetime.date(year, month, day)
+ hour = int(values['hour'])
+ minute = int(values['minute'])
+ second = int(values['second'])
+ fraction = 0
+ if values['fraction']:
+ fraction = values['fraction'][:6]
+ while len(fraction) < 6:
+ fraction += '0'
+ fraction = int(fraction)
+ delta = None
+ if values['tz_sign']:
+ tz_hour = int(values['tz_hour'])
+ tz_minute = int(values['tz_minute'] or 0)
+ delta = datetime.timedelta(hours=tz_hour, minutes=tz_minute)
+ if values['tz_sign'] == '-':
+ delta = -delta
+ data = datetime.datetime(year, month, day, hour, minute, second, fraction)
+ if delta:
+ data -= delta
+ return data
+
+ def construct_yaml_omap(self, node):
+ # Note: we do not check for duplicate keys, because it's too
+ # CPU-expensive.
+ omap = []
+ yield omap
+ if not isinstance(node, SequenceNode):
+ raise ConstructorError("while constructing an ordered map", node.start_mark,
+ "expected a sequence, but found %s" % node.id, node.start_mark)
+ for subnode in node.value:
+ if not isinstance(subnode, MappingNode):
+ raise ConstructorError("while constructing an ordered map", node.start_mark,
+ "expected a mapping of length 1, but found %s" % subnode.id,
+ subnode.start_mark)
+ if len(subnode.value) != 1:
+ raise ConstructorError("while constructing an ordered map", node.start_mark,
+ "expected a single mapping item, but found %d items" % len(subnode.value),
+ subnode.start_mark)
+ key_node, value_node = subnode.value[0]
+ key = self.construct_object(key_node)
+ value = self.construct_object(value_node)
+ omap.append((key, value))
+
+ def construct_yaml_pairs(self, node):
+ # Note: the same code as `construct_yaml_omap`.
+ pairs = []
+ yield pairs
+ if not isinstance(node, SequenceNode):
+ raise ConstructorError("while constructing pairs", node.start_mark,
+ "expected a sequence, but found %s" % node.id, node.start_mark)
+ for subnode in node.value:
+ if not isinstance(subnode, MappingNode):
+ raise ConstructorError("while constructing pairs", node.start_mark,
+ "expected a mapping of length 1, but found %s" % subnode.id,
+ subnode.start_mark)
+ if len(subnode.value) != 1:
+ raise ConstructorError("while constructing pairs", node.start_mark,
+ "expected a single mapping item, but found %d items" % len(subnode.value),
+ subnode.start_mark)
+ key_node, value_node = subnode.value[0]
+ key = self.construct_object(key_node)
+ value = self.construct_object(value_node)
+ pairs.append((key, value))
+
+ def construct_yaml_set(self, node):
+ data = set()
+ yield data
+ value = self.construct_mapping(node)
+ data.update(value)
+
+ def construct_yaml_str(self, node):
+ return self.construct_scalar(node)
+
+ def construct_yaml_seq(self, node):
+ data = []
+ yield data
+ data.extend(self.construct_sequence(node))
+
+ def construct_yaml_map(self, node):
+ data = {}
+ yield data
+ value = self.construct_mapping(node)
+ data.update(value)
+
+ def construct_yaml_object(self, node, cls):
+ data = cls.__new__(cls)
+ yield data
+ if hasattr(data, '__setstate__'):
+ state = self.construct_mapping(node, deep=True)
+ data.__setstate__(state)
+ else:
+ state = self.construct_mapping(node)
+ data.__dict__.update(state)
+
+ def construct_undefined(self, node):
+ raise ConstructorError(None, None,
+ "could not determine a constructor for the tag %r" % node.tag,
+ node.start_mark)
+
+SafeConstructor.add_constructor(
+ 'tag:yaml.org,2002:null',
+ SafeConstructor.construct_yaml_null)
+
+SafeConstructor.add_constructor(
+ 'tag:yaml.org,2002:bool',
+ SafeConstructor.construct_yaml_bool)
+
+SafeConstructor.add_constructor(
+ 'tag:yaml.org,2002:int',
+ SafeConstructor.construct_yaml_int)
+
+SafeConstructor.add_constructor(
+ 'tag:yaml.org,2002:float',
+ SafeConstructor.construct_yaml_float)
+
+SafeConstructor.add_constructor(
+ 'tag:yaml.org,2002:binary',
+ SafeConstructor.construct_yaml_binary)
+
+SafeConstructor.add_constructor(
+ 'tag:yaml.org,2002:timestamp',
+ SafeConstructor.construct_yaml_timestamp)
+
+SafeConstructor.add_constructor(
+ 'tag:yaml.org,2002:omap',
+ SafeConstructor.construct_yaml_omap)
+
+SafeConstructor.add_constructor(
+ 'tag:yaml.org,2002:pairs',
+ SafeConstructor.construct_yaml_pairs)
+
+SafeConstructor.add_constructor(
+ 'tag:yaml.org,2002:set',
+ SafeConstructor.construct_yaml_set)
+
+SafeConstructor.add_constructor(
+ 'tag:yaml.org,2002:str',
+ SafeConstructor.construct_yaml_str)
+
+SafeConstructor.add_constructor(
+ 'tag:yaml.org,2002:seq',
+ SafeConstructor.construct_yaml_seq)
+
+SafeConstructor.add_constructor(
+ 'tag:yaml.org,2002:map',
+ SafeConstructor.construct_yaml_map)
+
+SafeConstructor.add_constructor(None,
+ SafeConstructor.construct_undefined)
+
+class Constructor(SafeConstructor):
+
+ def construct_python_str(self, node):
+ return self.construct_scalar(node)
+
+ def construct_python_unicode(self, node):
+ return self.construct_scalar(node)
+
+ def construct_python_bytes(self, node):
+ try:
+ value = self.construct_scalar(node).encode('ascii')
+ except UnicodeEncodeError as exc:
+ raise ConstructorError(None, None,
+ "failed to convert base64 data into ascii: %s" % exc,
+ node.start_mark)
+ try:
+ if hasattr(base64, 'decodebytes'):
+ return base64.decodebytes(value)
+ else:
+ return base64.decodestring(value)
+ except binascii.Error as exc:
+ raise ConstructorError(None, None,
+ "failed to decode base64 data: %s" % exc, node.start_mark)
+
+ def construct_python_long(self, node):
+ return self.construct_yaml_int(node)
+
+ def construct_python_complex(self, node):
+ return complex(self.construct_scalar(node))
+
+ def construct_python_tuple(self, node):
+ return tuple(self.construct_sequence(node))
+
+ def find_python_module(self, name, mark):
+ if not name:
+ raise ConstructorError("while constructing a Python module", mark,
+ "expected non-empty name appended to the tag", mark)
+ try:
+ __import__(name)
+ except ImportError as exc:
+ raise ConstructorError("while constructing a Python module", mark,
+ "cannot find module %r (%s)" % (name, exc), mark)
+ return sys.modules[name]
+
+ def find_python_name(self, name, mark):
+ if not name:
+ raise ConstructorError("while constructing a Python object", mark,
+ "expected non-empty name appended to the tag", mark)
+ if '.' in name:
+ module_name, object_name = name.rsplit('.', 1)
+ else:
+ module_name = 'builtins'
+ object_name = name
+ try:
+ __import__(module_name)
+ except ImportError as exc:
+ raise ConstructorError("while constructing a Python object", mark,
+ "cannot find module %r (%s)" % (module_name, exc), mark)
+ module = sys.modules[module_name]
+ if not hasattr(module, object_name):
+ raise ConstructorError("while constructing a Python object", mark,
+ "cannot find %r in the module %r"
+ % (object_name, module.__name__), mark)
+ return getattr(module, object_name)
+
+ def construct_python_name(self, suffix, node):
+ value = self.construct_scalar(node)
+ if value:
+ raise ConstructorError("while constructing a Python name", node.start_mark,
+ "expected the empty value, but found %r" % value, node.start_mark)
+ return self.find_python_name(suffix, node.start_mark)
+
+ def construct_python_module(self, suffix, node):
+ value = self.construct_scalar(node)
+ if value:
+ raise ConstructorError("while constructing a Python module", node.start_mark,
+ "expected the empty value, but found %r" % value, node.start_mark)
+ return self.find_python_module(suffix, node.start_mark)
+
+ def make_python_instance(self, suffix, node,
+ args=None, kwds=None, newobj=False):
+ if not args:
+ args = []
+ if not kwds:
+ kwds = {}
+ cls = self.find_python_name(suffix, node.start_mark)
+ if newobj and isinstance(cls, type):
+ return cls.__new__(cls, *args, **kwds)
+ else:
+ return cls(*args, **kwds)
+
+ def set_python_instance_state(self, instance, state):
+ if hasattr(instance, '__setstate__'):
+ instance.__setstate__(state)
+ else:
+ slotstate = {}
+ if isinstance(state, tuple) and len(state) == 2:
+ state, slotstate = state
+ if hasattr(instance, '__dict__'):
+ instance.__dict__.update(state)
+ elif state:
+ slotstate.update(state)
+ for key, value in slotstate.items():
+ setattr(object, key, value)
+
+ def construct_python_object(self, suffix, node):
+ # Format:
+ # !!python/object:module.name { ... state ... }
+ instance = self.make_python_instance(suffix, node, newobj=True)
+ yield instance
+ deep = hasattr(instance, '__setstate__')
+ state = self.construct_mapping(node, deep=deep)
+ self.set_python_instance_state(instance, state)
+
+ def construct_python_object_apply(self, suffix, node, newobj=False):
+ # Format:
+ # !!python/object/apply # (or !!python/object/new)
+ # args: [ ... arguments ... ]
+ # kwds: { ... keywords ... }
+ # state: ... state ...
+ # listitems: [ ... listitems ... ]
+ # dictitems: { ... dictitems ... }
+ # or short format:
+ # !!python/object/apply [ ... arguments ... ]
+ # The difference between !!python/object/apply and !!python/object/new
+ # is how an object is created, check make_python_instance for details.
+ if isinstance(node, SequenceNode):
+ args = self.construct_sequence(node, deep=True)
+ kwds = {}
+ state = {}
+ listitems = []
+ dictitems = {}
+ else:
+ value = self.construct_mapping(node, deep=True)
+ args = value.get('args', [])
+ kwds = value.get('kwds', {})
+ state = value.get('state', {})
+ listitems = value.get('listitems', [])
+ dictitems = value.get('dictitems', {})
+ instance = self.make_python_instance(suffix, node, args, kwds, newobj)
+ if state:
+ self.set_python_instance_state(instance, state)
+ if listitems:
+ instance.extend(listitems)
+ if dictitems:
+ for key in dictitems:
+ instance[key] = dictitems[key]
+ return instance
+
+ def construct_python_object_new(self, suffix, node):
+ return self.construct_python_object_apply(suffix, node, newobj=True)
+
+Constructor.add_constructor(
+ 'tag:yaml.org,2002:python/none',
+ Constructor.construct_yaml_null)
+
+Constructor.add_constructor(
+ 'tag:yaml.org,2002:python/bool',
+ Constructor.construct_yaml_bool)
+
+Constructor.add_constructor(
+ 'tag:yaml.org,2002:python/str',
+ Constructor.construct_python_str)
+
+Constructor.add_constructor(
+ 'tag:yaml.org,2002:python/unicode',
+ Constructor.construct_python_unicode)
+
+Constructor.add_constructor(
+ 'tag:yaml.org,2002:python/bytes',
+ Constructor.construct_python_bytes)
+
+Constructor.add_constructor(
+ 'tag:yaml.org,2002:python/int',
+ Constructor.construct_yaml_int)
+
+Constructor.add_constructor(
+ 'tag:yaml.org,2002:python/long',
+ Constructor.construct_python_long)
+
+Constructor.add_constructor(
+ 'tag:yaml.org,2002:python/float',
+ Constructor.construct_yaml_float)
+
+Constructor.add_constructor(
+ 'tag:yaml.org,2002:python/complex',
+ Constructor.construct_python_complex)
+
+Constructor.add_constructor(
+ 'tag:yaml.org,2002:python/list',
+ Constructor.construct_yaml_seq)
+
+Constructor.add_constructor(
+ 'tag:yaml.org,2002:python/tuple',
+ Constructor.construct_python_tuple)
+
+Constructor.add_constructor(
+ 'tag:yaml.org,2002:python/dict',
+ Constructor.construct_yaml_map)
+
+Constructor.add_multi_constructor(
+ 'tag:yaml.org,2002:python/name:',
+ Constructor.construct_python_name)
+
+Constructor.add_multi_constructor(
+ 'tag:yaml.org,2002:python/module:',
+ Constructor.construct_python_module)
+
+Constructor.add_multi_constructor(
+ 'tag:yaml.org,2002:python/object:',
+ Constructor.construct_python_object)
+
+Constructor.add_multi_constructor(
+ 'tag:yaml.org,2002:python/object/apply:',
+ Constructor.construct_python_object_apply)
+
+Constructor.add_multi_constructor(
+ 'tag:yaml.org,2002:python/object/new:',
+ Constructor.construct_python_object_new)
+
diff --git a/python.d/python_modules/pyyaml3/cyaml.py b/python.d/python_modules/pyyaml3/cyaml.py
new file mode 100644
index 000000000..d5cb87e99
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/cyaml.py
@@ -0,0 +1,85 @@
+
+__all__ = ['CBaseLoader', 'CSafeLoader', 'CLoader',
+ 'CBaseDumper', 'CSafeDumper', 'CDumper']
+
+from _yaml import CParser, CEmitter
+
+from .constructor import *
+
+from .serializer import *
+from .representer import *
+
+from .resolver import *
+
+class CBaseLoader(CParser, BaseConstructor, BaseResolver):
+
+ def __init__(self, stream):
+ CParser.__init__(self, stream)
+ BaseConstructor.__init__(self)
+ BaseResolver.__init__(self)
+
+class CSafeLoader(CParser, SafeConstructor, Resolver):
+
+ def __init__(self, stream):
+ CParser.__init__(self, stream)
+ SafeConstructor.__init__(self)
+ Resolver.__init__(self)
+
+class CLoader(CParser, Constructor, Resolver):
+
+ def __init__(self, stream):
+ CParser.__init__(self, stream)
+ Constructor.__init__(self)
+ Resolver.__init__(self)
+
+class CBaseDumper(CEmitter, BaseRepresenter, BaseResolver):
+
+ def __init__(self, stream,
+ default_style=None, default_flow_style=None,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None,
+ encoding=None, explicit_start=None, explicit_end=None,
+ version=None, tags=None):
+ CEmitter.__init__(self, stream, canonical=canonical,
+ indent=indent, width=width, encoding=encoding,
+ allow_unicode=allow_unicode, line_break=line_break,
+ explicit_start=explicit_start, explicit_end=explicit_end,
+ version=version, tags=tags)
+ Representer.__init__(self, default_style=default_style,
+ default_flow_style=default_flow_style)
+ Resolver.__init__(self)
+
+class CSafeDumper(CEmitter, SafeRepresenter, Resolver):
+
+ def __init__(self, stream,
+ default_style=None, default_flow_style=None,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None,
+ encoding=None, explicit_start=None, explicit_end=None,
+ version=None, tags=None):
+ CEmitter.__init__(self, stream, canonical=canonical,
+ indent=indent, width=width, encoding=encoding,
+ allow_unicode=allow_unicode, line_break=line_break,
+ explicit_start=explicit_start, explicit_end=explicit_end,
+ version=version, tags=tags)
+ SafeRepresenter.__init__(self, default_style=default_style,
+ default_flow_style=default_flow_style)
+ Resolver.__init__(self)
+
+class CDumper(CEmitter, Serializer, Representer, Resolver):
+
+ def __init__(self, stream,
+ default_style=None, default_flow_style=None,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None,
+ encoding=None, explicit_start=None, explicit_end=None,
+ version=None, tags=None):
+ CEmitter.__init__(self, stream, canonical=canonical,
+ indent=indent, width=width, encoding=encoding,
+ allow_unicode=allow_unicode, line_break=line_break,
+ explicit_start=explicit_start, explicit_end=explicit_end,
+ version=version, tags=tags)
+ Representer.__init__(self, default_style=default_style,
+ default_flow_style=default_flow_style)
+ Resolver.__init__(self)
+
diff --git a/python.d/python_modules/pyyaml3/dumper.py b/python.d/python_modules/pyyaml3/dumper.py
new file mode 100644
index 000000000..0b6912877
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/dumper.py
@@ -0,0 +1,62 @@
+
+__all__ = ['BaseDumper', 'SafeDumper', 'Dumper']
+
+from .emitter import *
+from .serializer import *
+from .representer import *
+from .resolver import *
+
+class BaseDumper(Emitter, Serializer, BaseRepresenter, BaseResolver):
+
+ def __init__(self, stream,
+ default_style=None, default_flow_style=None,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None,
+ encoding=None, explicit_start=None, explicit_end=None,
+ version=None, tags=None):
+ Emitter.__init__(self, stream, canonical=canonical,
+ indent=indent, width=width,
+ allow_unicode=allow_unicode, line_break=line_break)
+ Serializer.__init__(self, encoding=encoding,
+ explicit_start=explicit_start, explicit_end=explicit_end,
+ version=version, tags=tags)
+ Representer.__init__(self, default_style=default_style,
+ default_flow_style=default_flow_style)
+ Resolver.__init__(self)
+
+class SafeDumper(Emitter, Serializer, SafeRepresenter, Resolver):
+
+ def __init__(self, stream,
+ default_style=None, default_flow_style=None,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None,
+ encoding=None, explicit_start=None, explicit_end=None,
+ version=None, tags=None):
+ Emitter.__init__(self, stream, canonical=canonical,
+ indent=indent, width=width,
+ allow_unicode=allow_unicode, line_break=line_break)
+ Serializer.__init__(self, encoding=encoding,
+ explicit_start=explicit_start, explicit_end=explicit_end,
+ version=version, tags=tags)
+ SafeRepresenter.__init__(self, default_style=default_style,
+ default_flow_style=default_flow_style)
+ Resolver.__init__(self)
+
+class Dumper(Emitter, Serializer, Representer, Resolver):
+
+ def __init__(self, stream,
+ default_style=None, default_flow_style=None,
+ canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None,
+ encoding=None, explicit_start=None, explicit_end=None,
+ version=None, tags=None):
+ Emitter.__init__(self, stream, canonical=canonical,
+ indent=indent, width=width,
+ allow_unicode=allow_unicode, line_break=line_break)
+ Serializer.__init__(self, encoding=encoding,
+ explicit_start=explicit_start, explicit_end=explicit_end,
+ version=version, tags=tags)
+ Representer.__init__(self, default_style=default_style,
+ default_flow_style=default_flow_style)
+ Resolver.__init__(self)
+
diff --git a/python.d/python_modules/pyyaml3/emitter.py b/python.d/python_modules/pyyaml3/emitter.py
new file mode 100644
index 000000000..34cb145a5
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/emitter.py
@@ -0,0 +1,1137 @@
+
+# Emitter expects events obeying the following grammar:
+# stream ::= STREAM-START document* STREAM-END
+# document ::= DOCUMENT-START node DOCUMENT-END
+# node ::= SCALAR | sequence | mapping
+# sequence ::= SEQUENCE-START node* SEQUENCE-END
+# mapping ::= MAPPING-START (node node)* MAPPING-END
+
+__all__ = ['Emitter', 'EmitterError']
+
+from .error import YAMLError
+from .events import *
+
+class EmitterError(YAMLError):
+ pass
+
+class ScalarAnalysis:
+ def __init__(self, scalar, empty, multiline,
+ allow_flow_plain, allow_block_plain,
+ allow_single_quoted, allow_double_quoted,
+ allow_block):
+ self.scalar = scalar
+ self.empty = empty
+ self.multiline = multiline
+ self.allow_flow_plain = allow_flow_plain
+ self.allow_block_plain = allow_block_plain
+ self.allow_single_quoted = allow_single_quoted
+ self.allow_double_quoted = allow_double_quoted
+ self.allow_block = allow_block
+
+class Emitter:
+
+ DEFAULT_TAG_PREFIXES = {
+ '!' : '!',
+ 'tag:yaml.org,2002:' : '!!',
+ }
+
+ def __init__(self, stream, canonical=None, indent=None, width=None,
+ allow_unicode=None, line_break=None):
+
+ # The stream should have the methods `write` and possibly `flush`.
+ self.stream = stream
+
+ # Encoding can be overriden by STREAM-START.
+ self.encoding = None
+
+ # Emitter is a state machine with a stack of states to handle nested
+ # structures.
+ self.states = []
+ self.state = self.expect_stream_start
+
+ # Current event and the event queue.
+ self.events = []
+ self.event = None
+
+ # The current indentation level and the stack of previous indents.
+ self.indents = []
+ self.indent = None
+
+ # Flow level.
+ self.flow_level = 0
+
+ # Contexts.
+ self.root_context = False
+ self.sequence_context = False
+ self.mapping_context = False
+ self.simple_key_context = False
+
+ # Characteristics of the last emitted character:
+ # - current position.
+ # - is it a whitespace?
+ # - is it an indention character
+ # (indentation space, '-', '?', or ':')?
+ self.line = 0
+ self.column = 0
+ self.whitespace = True
+ self.indention = True
+
+ # Whether the document requires an explicit document indicator
+ self.open_ended = False
+
+ # Formatting details.
+ self.canonical = canonical
+ self.allow_unicode = allow_unicode
+ self.best_indent = 2
+ if indent and 1 < indent < 10:
+ self.best_indent = indent
+ self.best_width = 80
+ if width and width > self.best_indent*2:
+ self.best_width = width
+ self.best_line_break = '\n'
+ if line_break in ['\r', '\n', '\r\n']:
+ self.best_line_break = line_break
+
+ # Tag prefixes.
+ self.tag_prefixes = None
+
+ # Prepared anchor and tag.
+ self.prepared_anchor = None
+ self.prepared_tag = None
+
+ # Scalar analysis and style.
+ self.analysis = None
+ self.style = None
+
+ def dispose(self):
+ # Reset the state attributes (to clear self-references)
+ self.states = []
+ self.state = None
+
+ def emit(self, event):
+ self.events.append(event)
+ while not self.need_more_events():
+ self.event = self.events.pop(0)
+ self.state()
+ self.event = None
+
+ # In some cases, we wait for a few next events before emitting.
+
+ def need_more_events(self):
+ if not self.events:
+ return True
+ event = self.events[0]
+ if isinstance(event, DocumentStartEvent):
+ return self.need_events(1)
+ elif isinstance(event, SequenceStartEvent):
+ return self.need_events(2)
+ elif isinstance(event, MappingStartEvent):
+ return self.need_events(3)
+ else:
+ return False
+
+ def need_events(self, count):
+ level = 0
+ for event in self.events[1:]:
+ if isinstance(event, (DocumentStartEvent, CollectionStartEvent)):
+ level += 1
+ elif isinstance(event, (DocumentEndEvent, CollectionEndEvent)):
+ level -= 1
+ elif isinstance(event, StreamEndEvent):
+ level = -1
+ if level < 0:
+ return False
+ return (len(self.events) < count+1)
+
+ def increase_indent(self, flow=False, indentless=False):
+ self.indents.append(self.indent)
+ if self.indent is None:
+ if flow:
+ self.indent = self.best_indent
+ else:
+ self.indent = 0
+ elif not indentless:
+ self.indent += self.best_indent
+
+ # States.
+
+ # Stream handlers.
+
+ def expect_stream_start(self):
+ if isinstance(self.event, StreamStartEvent):
+ if self.event.encoding and not hasattr(self.stream, 'encoding'):
+ self.encoding = self.event.encoding
+ self.write_stream_start()
+ self.state = self.expect_first_document_start
+ else:
+ raise EmitterError("expected StreamStartEvent, but got %s"
+ % self.event)
+
+ def expect_nothing(self):
+ raise EmitterError("expected nothing, but got %s" % self.event)
+
+ # Document handlers.
+
+ def expect_first_document_start(self):
+ return self.expect_document_start(first=True)
+
+ def expect_document_start(self, first=False):
+ if isinstance(self.event, DocumentStartEvent):
+ if (self.event.version or self.event.tags) and self.open_ended:
+ self.write_indicator('...', True)
+ self.write_indent()
+ if self.event.version:
+ version_text = self.prepare_version(self.event.version)
+ self.write_version_directive(version_text)
+ self.tag_prefixes = self.DEFAULT_TAG_PREFIXES.copy()
+ if self.event.tags:
+ handles = sorted(self.event.tags.keys())
+ for handle in handles:
+ prefix = self.event.tags[handle]
+ self.tag_prefixes[prefix] = handle
+ handle_text = self.prepare_tag_handle(handle)
+ prefix_text = self.prepare_tag_prefix(prefix)
+ self.write_tag_directive(handle_text, prefix_text)
+ implicit = (first and not self.event.explicit and not self.canonical
+ and not self.event.version and not self.event.tags
+ and not self.check_empty_document())
+ if not implicit:
+ self.write_indent()
+ self.write_indicator('---', True)
+ if self.canonical:
+ self.write_indent()
+ self.state = self.expect_document_root
+ elif isinstance(self.event, StreamEndEvent):
+ if self.open_ended:
+ self.write_indicator('...', True)
+ self.write_indent()
+ self.write_stream_end()
+ self.state = self.expect_nothing
+ else:
+ raise EmitterError("expected DocumentStartEvent, but got %s"
+ % self.event)
+
+ def expect_document_end(self):
+ if isinstance(self.event, DocumentEndEvent):
+ self.write_indent()
+ if self.event.explicit:
+ self.write_indicator('...', True)
+ self.write_indent()
+ self.flush_stream()
+ self.state = self.expect_document_start
+ else:
+ raise EmitterError("expected DocumentEndEvent, but got %s"
+ % self.event)
+
+ def expect_document_root(self):
+ self.states.append(self.expect_document_end)
+ self.expect_node(root=True)
+
+ # Node handlers.
+
+ def expect_node(self, root=False, sequence=False, mapping=False,
+ simple_key=False):
+ self.root_context = root
+ self.sequence_context = sequence
+ self.mapping_context = mapping
+ self.simple_key_context = simple_key
+ if isinstance(self.event, AliasEvent):
+ self.expect_alias()
+ elif isinstance(self.event, (ScalarEvent, CollectionStartEvent)):
+ self.process_anchor('&')
+ self.process_tag()
+ if isinstance(self.event, ScalarEvent):
+ self.expect_scalar()
+ elif isinstance(self.event, SequenceStartEvent):
+ if self.flow_level or self.canonical or self.event.flow_style \
+ or self.check_empty_sequence():
+ self.expect_flow_sequence()
+ else:
+ self.expect_block_sequence()
+ elif isinstance(self.event, MappingStartEvent):
+ if self.flow_level or self.canonical or self.event.flow_style \
+ or self.check_empty_mapping():
+ self.expect_flow_mapping()
+ else:
+ self.expect_block_mapping()
+ else:
+ raise EmitterError("expected NodeEvent, but got %s" % self.event)
+
+ def expect_alias(self):
+ if self.event.anchor is None:
+ raise EmitterError("anchor is not specified for alias")
+ self.process_anchor('*')
+ self.state = self.states.pop()
+
+ def expect_scalar(self):
+ self.increase_indent(flow=True)
+ self.process_scalar()
+ self.indent = self.indents.pop()
+ self.state = self.states.pop()
+
+ # Flow sequence handlers.
+
+ def expect_flow_sequence(self):
+ self.write_indicator('[', True, whitespace=True)
+ self.flow_level += 1
+ self.increase_indent(flow=True)
+ self.state = self.expect_first_flow_sequence_item
+
+ def expect_first_flow_sequence_item(self):
+ if isinstance(self.event, SequenceEndEvent):
+ self.indent = self.indents.pop()
+ self.flow_level -= 1
+ self.write_indicator(']', False)
+ self.state = self.states.pop()
+ else:
+ if self.canonical or self.column > self.best_width:
+ self.write_indent()
+ self.states.append(self.expect_flow_sequence_item)
+ self.expect_node(sequence=True)
+
+ def expect_flow_sequence_item(self):
+ if isinstance(self.event, SequenceEndEvent):
+ self.indent = self.indents.pop()
+ self.flow_level -= 1
+ if self.canonical:
+ self.write_indicator(',', False)
+ self.write_indent()
+ self.write_indicator(']', False)
+ self.state = self.states.pop()
+ else:
+ self.write_indicator(',', False)
+ if self.canonical or self.column > self.best_width:
+ self.write_indent()
+ self.states.append(self.expect_flow_sequence_item)
+ self.expect_node(sequence=True)
+
+ # Flow mapping handlers.
+
+ def expect_flow_mapping(self):
+ self.write_indicator('{', True, whitespace=True)
+ self.flow_level += 1
+ self.increase_indent(flow=True)
+ self.state = self.expect_first_flow_mapping_key
+
+ def expect_first_flow_mapping_key(self):
+ if isinstance(self.event, MappingEndEvent):
+ self.indent = self.indents.pop()
+ self.flow_level -= 1
+ self.write_indicator('}', False)
+ self.state = self.states.pop()
+ else:
+ if self.canonical or self.column > self.best_width:
+ self.write_indent()
+ if not self.canonical and self.check_simple_key():
+ self.states.append(self.expect_flow_mapping_simple_value)
+ self.expect_node(mapping=True, simple_key=True)
+ else:
+ self.write_indicator('?', True)
+ self.states.append(self.expect_flow_mapping_value)
+ self.expect_node(mapping=True)
+
+ def expect_flow_mapping_key(self):
+ if isinstance(self.event, MappingEndEvent):
+ self.indent = self.indents.pop()
+ self.flow_level -= 1
+ if self.canonical:
+ self.write_indicator(',', False)
+ self.write_indent()
+ self.write_indicator('}', False)
+ self.state = self.states.pop()
+ else:
+ self.write_indicator(',', False)
+ if self.canonical or self.column > self.best_width:
+ self.write_indent()
+ if not self.canonical and self.check_simple_key():
+ self.states.append(self.expect_flow_mapping_simple_value)
+ self.expect_node(mapping=True, simple_key=True)
+ else:
+ self.write_indicator('?', True)
+ self.states.append(self.expect_flow_mapping_value)
+ self.expect_node(mapping=True)
+
+ def expect_flow_mapping_simple_value(self):
+ self.write_indicator(':', False)
+ self.states.append(self.expect_flow_mapping_key)
+ self.expect_node(mapping=True)
+
+ def expect_flow_mapping_value(self):
+ if self.canonical or self.column > self.best_width:
+ self.write_indent()
+ self.write_indicator(':', True)
+ self.states.append(self.expect_flow_mapping_key)
+ self.expect_node(mapping=True)
+
+ # Block sequence handlers.
+
+ def expect_block_sequence(self):
+ indentless = (self.mapping_context and not self.indention)
+ self.increase_indent(flow=False, indentless=indentless)
+ self.state = self.expect_first_block_sequence_item
+
+ def expect_first_block_sequence_item(self):
+ return self.expect_block_sequence_item(first=True)
+
+ def expect_block_sequence_item(self, first=False):
+ if not first and isinstance(self.event, SequenceEndEvent):
+ self.indent = self.indents.pop()
+ self.state = self.states.pop()
+ else:
+ self.write_indent()
+ self.write_indicator('-', True, indention=True)
+ self.states.append(self.expect_block_sequence_item)
+ self.expect_node(sequence=True)
+
+ # Block mapping handlers.
+
+ def expect_block_mapping(self):
+ self.increase_indent(flow=False)
+ self.state = self.expect_first_block_mapping_key
+
+ def expect_first_block_mapping_key(self):
+ return self.expect_block_mapping_key(first=True)
+
+ def expect_block_mapping_key(self, first=False):
+ if not first and isinstance(self.event, MappingEndEvent):
+ self.indent = self.indents.pop()
+ self.state = self.states.pop()
+ else:
+ self.write_indent()
+ if self.check_simple_key():
+ self.states.append(self.expect_block_mapping_simple_value)
+ self.expect_node(mapping=True, simple_key=True)
+ else:
+ self.write_indicator('?', True, indention=True)
+ self.states.append(self.expect_block_mapping_value)
+ self.expect_node(mapping=True)
+
+ def expect_block_mapping_simple_value(self):
+ self.write_indicator(':', False)
+ self.states.append(self.expect_block_mapping_key)
+ self.expect_node(mapping=True)
+
+ def expect_block_mapping_value(self):
+ self.write_indent()
+ self.write_indicator(':', True, indention=True)
+ self.states.append(self.expect_block_mapping_key)
+ self.expect_node(mapping=True)
+
+ # Checkers.
+
+ def check_empty_sequence(self):
+ return (isinstance(self.event, SequenceStartEvent) and self.events
+ and isinstance(self.events[0], SequenceEndEvent))
+
+ def check_empty_mapping(self):
+ return (isinstance(self.event, MappingStartEvent) and self.events
+ and isinstance(self.events[0], MappingEndEvent))
+
+ def check_empty_document(self):
+ if not isinstance(self.event, DocumentStartEvent) or not self.events:
+ return False
+ event = self.events[0]
+ return (isinstance(event, ScalarEvent) and event.anchor is None
+ and event.tag is None and event.implicit and event.value == '')
+
+ def check_simple_key(self):
+ length = 0
+ if isinstance(self.event, NodeEvent) and self.event.anchor is not None:
+ if self.prepared_anchor is None:
+ self.prepared_anchor = self.prepare_anchor(self.event.anchor)
+ length += len(self.prepared_anchor)
+ if isinstance(self.event, (ScalarEvent, CollectionStartEvent)) \
+ and self.event.tag is not None:
+ if self.prepared_tag is None:
+ self.prepared_tag = self.prepare_tag(self.event.tag)
+ length += len(self.prepared_tag)
+ if isinstance(self.event, ScalarEvent):
+ if self.analysis is None:
+ self.analysis = self.analyze_scalar(self.event.value)
+ length += len(self.analysis.scalar)
+ return (length < 128 and (isinstance(self.event, AliasEvent)
+ or (isinstance(self.event, ScalarEvent)
+ and not self.analysis.empty and not self.analysis.multiline)
+ or self.check_empty_sequence() or self.check_empty_mapping()))
+
+ # Anchor, Tag, and Scalar processors.
+
+ def process_anchor(self, indicator):
+ if self.event.anchor is None:
+ self.prepared_anchor = None
+ return
+ if self.prepared_anchor is None:
+ self.prepared_anchor = self.prepare_anchor(self.event.anchor)
+ if self.prepared_anchor:
+ self.write_indicator(indicator+self.prepared_anchor, True)
+ self.prepared_anchor = None
+
+ def process_tag(self):
+ tag = self.event.tag
+ if isinstance(self.event, ScalarEvent):
+ if self.style is None:
+ self.style = self.choose_scalar_style()
+ if ((not self.canonical or tag is None) and
+ ((self.style == '' and self.event.implicit[0])
+ or (self.style != '' and self.event.implicit[1]))):
+ self.prepared_tag = None
+ return
+ if self.event.implicit[0] and tag is None:
+ tag = '!'
+ self.prepared_tag = None
+ else:
+ if (not self.canonical or tag is None) and self.event.implicit:
+ self.prepared_tag = None
+ return
+ if tag is None:
+ raise EmitterError("tag is not specified")
+ if self.prepared_tag is None:
+ self.prepared_tag = self.prepare_tag(tag)
+ if self.prepared_tag:
+ self.write_indicator(self.prepared_tag, True)
+ self.prepared_tag = None
+
+ def choose_scalar_style(self):
+ if self.analysis is None:
+ self.analysis = self.analyze_scalar(self.event.value)
+ if self.event.style == '"' or self.canonical:
+ return '"'
+ if not self.event.style and self.event.implicit[0]:
+ if (not (self.simple_key_context and
+ (self.analysis.empty or self.analysis.multiline))
+ and (self.flow_level and self.analysis.allow_flow_plain
+ or (not self.flow_level and self.analysis.allow_block_plain))):
+ return ''
+ if self.event.style and self.event.style in '|>':
+ if (not self.flow_level and not self.simple_key_context
+ and self.analysis.allow_block):
+ return self.event.style
+ if not self.event.style or self.event.style == '\'':
+ if (self.analysis.allow_single_quoted and
+ not (self.simple_key_context and self.analysis.multiline)):
+ return '\''
+ return '"'
+
+ def process_scalar(self):
+ if self.analysis is None:
+ self.analysis = self.analyze_scalar(self.event.value)
+ if self.style is None:
+ self.style = self.choose_scalar_style()
+ split = (not self.simple_key_context)
+ #if self.analysis.multiline and split \
+ # and (not self.style or self.style in '\'\"'):
+ # self.write_indent()
+ if self.style == '"':
+ self.write_double_quoted(self.analysis.scalar, split)
+ elif self.style == '\'':
+ self.write_single_quoted(self.analysis.scalar, split)
+ elif self.style == '>':
+ self.write_folded(self.analysis.scalar)
+ elif self.style == '|':
+ self.write_literal(self.analysis.scalar)
+ else:
+ self.write_plain(self.analysis.scalar, split)
+ self.analysis = None
+ self.style = None
+
+ # Analyzers.
+
+ def prepare_version(self, version):
+ major, minor = version
+ if major != 1:
+ raise EmitterError("unsupported YAML version: %d.%d" % (major, minor))
+ return '%d.%d' % (major, minor)
+
+ def prepare_tag_handle(self, handle):
+ if not handle:
+ raise EmitterError("tag handle must not be empty")
+ if handle[0] != '!' or handle[-1] != '!':
+ raise EmitterError("tag handle must start and end with '!': %r" % handle)
+ for ch in handle[1:-1]:
+ if not ('0' <= ch <= '9' or 'A' <= ch <= 'Z' or 'a' <= ch <= 'z' \
+ or ch in '-_'):
+ raise EmitterError("invalid character %r in the tag handle: %r"
+ % (ch, handle))
+ return handle
+
+ def prepare_tag_prefix(self, prefix):
+ if not prefix:
+ raise EmitterError("tag prefix must not be empty")
+ chunks = []
+ start = end = 0
+ if prefix[0] == '!':
+ end = 1
+ while end < len(prefix):
+ ch = prefix[end]
+ if '0' <= ch <= '9' or 'A' <= ch <= 'Z' or 'a' <= ch <= 'z' \
+ or ch in '-;/?!:@&=+$,_.~*\'()[]':
+ end += 1
+ else:
+ if start < end:
+ chunks.append(prefix[start:end])
+ start = end = end+1
+ data = ch.encode('utf-8')
+ for ch in data:
+ chunks.append('%%%02X' % ord(ch))
+ if start < end:
+ chunks.append(prefix[start:end])
+ return ''.join(chunks)
+
+ def prepare_tag(self, tag):
+ if not tag:
+ raise EmitterError("tag must not be empty")
+ if tag == '!':
+ return tag
+ handle = None
+ suffix = tag
+ prefixes = sorted(self.tag_prefixes.keys())
+ for prefix in prefixes:
+ if tag.startswith(prefix) \
+ and (prefix == '!' or len(prefix) < len(tag)):
+ handle = self.tag_prefixes[prefix]
+ suffix = tag[len(prefix):]
+ chunks = []
+ start = end = 0
+ while end < len(suffix):
+ ch = suffix[end]
+ if '0' <= ch <= '9' or 'A' <= ch <= 'Z' or 'a' <= ch <= 'z' \
+ or ch in '-;/?:@&=+$,_.~*\'()[]' \
+ or (ch == '!' and handle != '!'):
+ end += 1
+ else:
+ if start < end:
+ chunks.append(suffix[start:end])
+ start = end = end+1
+ data = ch.encode('utf-8')
+ for ch in data:
+ chunks.append('%%%02X' % ord(ch))
+ if start < end:
+ chunks.append(suffix[start:end])
+ suffix_text = ''.join(chunks)
+ if handle:
+ return '%s%s' % (handle, suffix_text)
+ else:
+ return '!<%s>' % suffix_text
+
+ def prepare_anchor(self, anchor):
+ if not anchor:
+ raise EmitterError("anchor must not be empty")
+ for ch in anchor:
+ if not ('0' <= ch <= '9' or 'A' <= ch <= 'Z' or 'a' <= ch <= 'z' \
+ or ch in '-_'):
+ raise EmitterError("invalid character %r in the anchor: %r"
+ % (ch, anchor))
+ return anchor
+
+ def analyze_scalar(self, scalar):
+
+ # Empty scalar is a special case.
+ if not scalar:
+ return ScalarAnalysis(scalar=scalar, empty=True, multiline=False,
+ allow_flow_plain=False, allow_block_plain=True,
+ allow_single_quoted=True, allow_double_quoted=True,
+ allow_block=False)
+
+ # Indicators and special characters.
+ block_indicators = False
+ flow_indicators = False
+ line_breaks = False
+ special_characters = False
+
+ # Important whitespace combinations.
+ leading_space = False
+ leading_break = False
+ trailing_space = False
+ trailing_break = False
+ break_space = False
+ space_break = False
+
+ # Check document indicators.
+ if scalar.startswith('---') or scalar.startswith('...'):
+ block_indicators = True
+ flow_indicators = True
+
+ # First character or preceded by a whitespace.
+ preceeded_by_whitespace = True
+
+ # Last character or followed by a whitespace.
+ followed_by_whitespace = (len(scalar) == 1 or
+ scalar[1] in '\0 \t\r\n\x85\u2028\u2029')
+
+ # The previous character is a space.
+ previous_space = False
+
+ # The previous character is a break.
+ previous_break = False
+
+ index = 0
+ while index < len(scalar):
+ ch = scalar[index]
+
+ # Check for indicators.
+ if index == 0:
+ # Leading indicators are special characters.
+ if ch in '#,[]{}&*!|>\'\"%@`':
+ flow_indicators = True
+ block_indicators = True
+ if ch in '?:':
+ flow_indicators = True
+ if followed_by_whitespace:
+ block_indicators = True
+ if ch == '-' and followed_by_whitespace:
+ flow_indicators = True
+ block_indicators = True
+ else:
+ # Some indicators cannot appear within a scalar as well.
+ if ch in ',?[]{}':
+ flow_indicators = True
+ if ch == ':':
+ flow_indicators = True
+ if followed_by_whitespace:
+ block_indicators = True
+ if ch == '#' and preceeded_by_whitespace:
+ flow_indicators = True
+ block_indicators = True
+
+ # Check for line breaks, special, and unicode characters.
+ if ch in '\n\x85\u2028\u2029':
+ line_breaks = True
+ if not (ch == '\n' or '\x20' <= ch <= '\x7E'):
+ if (ch == '\x85' or '\xA0' <= ch <= '\uD7FF'
+ or '\uE000' <= ch <= '\uFFFD') and ch != '\uFEFF':
+ unicode_characters = True
+ if not self.allow_unicode:
+ special_characters = True
+ else:
+ special_characters = True
+
+ # Detect important whitespace combinations.
+ if ch == ' ':
+ if index == 0:
+ leading_space = True
+ if index == len(scalar)-1:
+ trailing_space = True
+ if previous_break:
+ break_space = True
+ previous_space = True
+ previous_break = False
+ elif ch in '\n\x85\u2028\u2029':
+ if index == 0:
+ leading_break = True
+ if index == len(scalar)-1:
+ trailing_break = True
+ if previous_space:
+ space_break = True
+ previous_space = False
+ previous_break = True
+ else:
+ previous_space = False
+ previous_break = False
+
+ # Prepare for the next character.
+ index += 1
+ preceeded_by_whitespace = (ch in '\0 \t\r\n\x85\u2028\u2029')
+ followed_by_whitespace = (index+1 >= len(scalar) or
+ scalar[index+1] in '\0 \t\r\n\x85\u2028\u2029')
+
+ # Let's decide what styles are allowed.
+ allow_flow_plain = True
+ allow_block_plain = True
+ allow_single_quoted = True
+ allow_double_quoted = True
+ allow_block = True
+
+ # Leading and trailing whitespaces are bad for plain scalars.
+ if (leading_space or leading_break
+ or trailing_space or trailing_break):
+ allow_flow_plain = allow_block_plain = False
+
+ # We do not permit trailing spaces for block scalars.
+ if trailing_space:
+ allow_block = False
+
+ # Spaces at the beginning of a new line are only acceptable for block
+ # scalars.
+ if break_space:
+ allow_flow_plain = allow_block_plain = allow_single_quoted = False
+
+ # Spaces followed by breaks, as well as special character are only
+ # allowed for double quoted scalars.
+ if space_break or special_characters:
+ allow_flow_plain = allow_block_plain = \
+ allow_single_quoted = allow_block = False
+
+ # Although the plain scalar writer supports breaks, we never emit
+ # multiline plain scalars.
+ if line_breaks:
+ allow_flow_plain = allow_block_plain = False
+
+ # Flow indicators are forbidden for flow plain scalars.
+ if flow_indicators:
+ allow_flow_plain = False
+
+ # Block indicators are forbidden for block plain scalars.
+ if block_indicators:
+ allow_block_plain = False
+
+ return ScalarAnalysis(scalar=scalar,
+ empty=False, multiline=line_breaks,
+ allow_flow_plain=allow_flow_plain,
+ allow_block_plain=allow_block_plain,
+ allow_single_quoted=allow_single_quoted,
+ allow_double_quoted=allow_double_quoted,
+ allow_block=allow_block)
+
+ # Writers.
+
+ def flush_stream(self):
+ if hasattr(self.stream, 'flush'):
+ self.stream.flush()
+
+ def write_stream_start(self):
+ # Write BOM if needed.
+ if self.encoding and self.encoding.startswith('utf-16'):
+ self.stream.write('\uFEFF'.encode(self.encoding))
+
+ def write_stream_end(self):
+ self.flush_stream()
+
+ def write_indicator(self, indicator, need_whitespace,
+ whitespace=False, indention=False):
+ if self.whitespace or not need_whitespace:
+ data = indicator
+ else:
+ data = ' '+indicator
+ self.whitespace = whitespace
+ self.indention = self.indention and indention
+ self.column += len(data)
+ self.open_ended = False
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+
+ def write_indent(self):
+ indent = self.indent or 0
+ if not self.indention or self.column > indent \
+ or (self.column == indent and not self.whitespace):
+ self.write_line_break()
+ if self.column < indent:
+ self.whitespace = True
+ data = ' '*(indent-self.column)
+ self.column = indent
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+
+ def write_line_break(self, data=None):
+ if data is None:
+ data = self.best_line_break
+ self.whitespace = True
+ self.indention = True
+ self.line += 1
+ self.column = 0
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+
+ def write_version_directive(self, version_text):
+ data = '%%YAML %s' % version_text
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ self.write_line_break()
+
+ def write_tag_directive(self, handle_text, prefix_text):
+ data = '%%TAG %s %s' % (handle_text, prefix_text)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ self.write_line_break()
+
+ # Scalar streams.
+
+ def write_single_quoted(self, text, split=True):
+ self.write_indicator('\'', True)
+ spaces = False
+ breaks = False
+ start = end = 0
+ while end <= len(text):
+ ch = None
+ if end < len(text):
+ ch = text[end]
+ if spaces:
+ if ch is None or ch != ' ':
+ if start+1 == end and self.column > self.best_width and split \
+ and start != 0 and end != len(text):
+ self.write_indent()
+ else:
+ data = text[start:end]
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ start = end
+ elif breaks:
+ if ch is None or ch not in '\n\x85\u2028\u2029':
+ if text[start] == '\n':
+ self.write_line_break()
+ for br in text[start:end]:
+ if br == '\n':
+ self.write_line_break()
+ else:
+ self.write_line_break(br)
+ self.write_indent()
+ start = end
+ else:
+ if ch is None or ch in ' \n\x85\u2028\u2029' or ch == '\'':
+ if start < end:
+ data = text[start:end]
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ start = end
+ if ch == '\'':
+ data = '\'\''
+ self.column += 2
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ start = end + 1
+ if ch is not None:
+ spaces = (ch == ' ')
+ breaks = (ch in '\n\x85\u2028\u2029')
+ end += 1
+ self.write_indicator('\'', False)
+
+ ESCAPE_REPLACEMENTS = {
+ '\0': '0',
+ '\x07': 'a',
+ '\x08': 'b',
+ '\x09': 't',
+ '\x0A': 'n',
+ '\x0B': 'v',
+ '\x0C': 'f',
+ '\x0D': 'r',
+ '\x1B': 'e',
+ '\"': '\"',
+ '\\': '\\',
+ '\x85': 'N',
+ '\xA0': '_',
+ '\u2028': 'L',
+ '\u2029': 'P',
+ }
+
+ def write_double_quoted(self, text, split=True):
+ self.write_indicator('"', True)
+ start = end = 0
+ while end <= len(text):
+ ch = None
+ if end < len(text):
+ ch = text[end]
+ if ch is None or ch in '"\\\x85\u2028\u2029\uFEFF' \
+ or not ('\x20' <= ch <= '\x7E'
+ or (self.allow_unicode
+ and ('\xA0' <= ch <= '\uD7FF'
+ or '\uE000' <= ch <= '\uFFFD'))):
+ if start < end:
+ data = text[start:end]
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ start = end
+ if ch is not None:
+ if ch in self.ESCAPE_REPLACEMENTS:
+ data = '\\'+self.ESCAPE_REPLACEMENTS[ch]
+ elif ch <= '\xFF':
+ data = '\\x%02X' % ord(ch)
+ elif ch <= '\uFFFF':
+ data = '\\u%04X' % ord(ch)
+ else:
+ data = '\\U%08X' % ord(ch)
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ start = end+1
+ if 0 < end < len(text)-1 and (ch == ' ' or start >= end) \
+ and self.column+(end-start) > self.best_width and split:
+ data = text[start:end]+'\\'
+ if start < end:
+ start = end
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ self.write_indent()
+ self.whitespace = False
+ self.indention = False
+ if text[start] == ' ':
+ data = '\\'
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ end += 1
+ self.write_indicator('"', False)
+
+ def determine_block_hints(self, text):
+ hints = ''
+ if text:
+ if text[0] in ' \n\x85\u2028\u2029':
+ hints += str(self.best_indent)
+ if text[-1] not in '\n\x85\u2028\u2029':
+ hints += '-'
+ elif len(text) == 1 or text[-2] in '\n\x85\u2028\u2029':
+ hints += '+'
+ return hints
+
+ def write_folded(self, text):
+ hints = self.determine_block_hints(text)
+ self.write_indicator('>'+hints, True)
+ if hints[-1:] == '+':
+ self.open_ended = True
+ self.write_line_break()
+ leading_space = True
+ spaces = False
+ breaks = True
+ start = end = 0
+ while end <= len(text):
+ ch = None
+ if end < len(text):
+ ch = text[end]
+ if breaks:
+ if ch is None or ch not in '\n\x85\u2028\u2029':
+ if not leading_space and ch is not None and ch != ' ' \
+ and text[start] == '\n':
+ self.write_line_break()
+ leading_space = (ch == ' ')
+ for br in text[start:end]:
+ if br == '\n':
+ self.write_line_break()
+ else:
+ self.write_line_break(br)
+ if ch is not None:
+ self.write_indent()
+ start = end
+ elif spaces:
+ if ch != ' ':
+ if start+1 == end and self.column > self.best_width:
+ self.write_indent()
+ else:
+ data = text[start:end]
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ start = end
+ else:
+ if ch is None or ch in ' \n\x85\u2028\u2029':
+ data = text[start:end]
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ if ch is None:
+ self.write_line_break()
+ start = end
+ if ch is not None:
+ breaks = (ch in '\n\x85\u2028\u2029')
+ spaces = (ch == ' ')
+ end += 1
+
+ def write_literal(self, text):
+ hints = self.determine_block_hints(text)
+ self.write_indicator('|'+hints, True)
+ if hints[-1:] == '+':
+ self.open_ended = True
+ self.write_line_break()
+ breaks = True
+ start = end = 0
+ while end <= len(text):
+ ch = None
+ if end < len(text):
+ ch = text[end]
+ if breaks:
+ if ch is None or ch not in '\n\x85\u2028\u2029':
+ for br in text[start:end]:
+ if br == '\n':
+ self.write_line_break()
+ else:
+ self.write_line_break(br)
+ if ch is not None:
+ self.write_indent()
+ start = end
+ else:
+ if ch is None or ch in '\n\x85\u2028\u2029':
+ data = text[start:end]
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ if ch is None:
+ self.write_line_break()
+ start = end
+ if ch is not None:
+ breaks = (ch in '\n\x85\u2028\u2029')
+ end += 1
+
+ def write_plain(self, text, split=True):
+ if self.root_context:
+ self.open_ended = True
+ if not text:
+ return
+ if not self.whitespace:
+ data = ' '
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ self.whitespace = False
+ self.indention = False
+ spaces = False
+ breaks = False
+ start = end = 0
+ while end <= len(text):
+ ch = None
+ if end < len(text):
+ ch = text[end]
+ if spaces:
+ if ch != ' ':
+ if start+1 == end and self.column > self.best_width and split:
+ self.write_indent()
+ self.whitespace = False
+ self.indention = False
+ else:
+ data = text[start:end]
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ start = end
+ elif breaks:
+ if ch not in '\n\x85\u2028\u2029':
+ if text[start] == '\n':
+ self.write_line_break()
+ for br in text[start:end]:
+ if br == '\n':
+ self.write_line_break()
+ else:
+ self.write_line_break(br)
+ self.write_indent()
+ self.whitespace = False
+ self.indention = False
+ start = end
+ else:
+ if ch is None or ch in ' \n\x85\u2028\u2029':
+ data = text[start:end]
+ self.column += len(data)
+ if self.encoding:
+ data = data.encode(self.encoding)
+ self.stream.write(data)
+ start = end
+ if ch is not None:
+ spaces = (ch == ' ')
+ breaks = (ch in '\n\x85\u2028\u2029')
+ end += 1
+
diff --git a/python.d/python_modules/pyyaml3/error.py b/python.d/python_modules/pyyaml3/error.py
new file mode 100644
index 000000000..b796b4dc5
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/error.py
@@ -0,0 +1,75 @@
+
+__all__ = ['Mark', 'YAMLError', 'MarkedYAMLError']
+
+class Mark:
+
+ def __init__(self, name, index, line, column, buffer, pointer):
+ self.name = name
+ self.index = index
+ self.line = line
+ self.column = column
+ self.buffer = buffer
+ self.pointer = pointer
+
+ def get_snippet(self, indent=4, max_length=75):
+ if self.buffer is None:
+ return None
+ head = ''
+ start = self.pointer
+ while start > 0 and self.buffer[start-1] not in '\0\r\n\x85\u2028\u2029':
+ start -= 1
+ if self.pointer-start > max_length/2-1:
+ head = ' ... '
+ start += 5
+ break
+ tail = ''
+ end = self.pointer
+ while end < len(self.buffer) and self.buffer[end] not in '\0\r\n\x85\u2028\u2029':
+ end += 1
+ if end-self.pointer > max_length/2-1:
+ tail = ' ... '
+ end -= 5
+ break
+ snippet = self.buffer[start:end]
+ return ' '*indent + head + snippet + tail + '\n' \
+ + ' '*(indent+self.pointer-start+len(head)) + '^'
+
+ def __str__(self):
+ snippet = self.get_snippet()
+ where = " in \"%s\", line %d, column %d" \
+ % (self.name, self.line+1, self.column+1)
+ if snippet is not None:
+ where += ":\n"+snippet
+ return where
+
+class YAMLError(Exception):
+ pass
+
+class MarkedYAMLError(YAMLError):
+
+ def __init__(self, context=None, context_mark=None,
+ problem=None, problem_mark=None, note=None):
+ self.context = context
+ self.context_mark = context_mark
+ self.problem = problem
+ self.problem_mark = problem_mark
+ self.note = note
+
+ def __str__(self):
+ lines = []
+ if self.context is not None:
+ lines.append(self.context)
+ if self.context_mark is not None \
+ and (self.problem is None or self.problem_mark is None
+ or self.context_mark.name != self.problem_mark.name
+ or self.context_mark.line != self.problem_mark.line
+ or self.context_mark.column != self.problem_mark.column):
+ lines.append(str(self.context_mark))
+ if self.problem is not None:
+ lines.append(self.problem)
+ if self.problem_mark is not None:
+ lines.append(str(self.problem_mark))
+ if self.note is not None:
+ lines.append(self.note)
+ return '\n'.join(lines)
+
diff --git a/python.d/python_modules/pyyaml3/events.py b/python.d/python_modules/pyyaml3/events.py
new file mode 100644
index 000000000..f79ad389c
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/events.py
@@ -0,0 +1,86 @@
+
+# Abstract classes.
+
+class Event(object):
+ def __init__(self, start_mark=None, end_mark=None):
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ def __repr__(self):
+ attributes = [key for key in ['anchor', 'tag', 'implicit', 'value']
+ if hasattr(self, key)]
+ arguments = ', '.join(['%s=%r' % (key, getattr(self, key))
+ for key in attributes])
+ return '%s(%s)' % (self.__class__.__name__, arguments)
+
+class NodeEvent(Event):
+ def __init__(self, anchor, start_mark=None, end_mark=None):
+ self.anchor = anchor
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+
+class CollectionStartEvent(NodeEvent):
+ def __init__(self, anchor, tag, implicit, start_mark=None, end_mark=None,
+ flow_style=None):
+ self.anchor = anchor
+ self.tag = tag
+ self.implicit = implicit
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.flow_style = flow_style
+
+class CollectionEndEvent(Event):
+ pass
+
+# Implementations.
+
+class StreamStartEvent(Event):
+ def __init__(self, start_mark=None, end_mark=None, encoding=None):
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.encoding = encoding
+
+class StreamEndEvent(Event):
+ pass
+
+class DocumentStartEvent(Event):
+ def __init__(self, start_mark=None, end_mark=None,
+ explicit=None, version=None, tags=None):
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.explicit = explicit
+ self.version = version
+ self.tags = tags
+
+class DocumentEndEvent(Event):
+ def __init__(self, start_mark=None, end_mark=None,
+ explicit=None):
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.explicit = explicit
+
+class AliasEvent(NodeEvent):
+ pass
+
+class ScalarEvent(NodeEvent):
+ def __init__(self, anchor, tag, implicit, value,
+ start_mark=None, end_mark=None, style=None):
+ self.anchor = anchor
+ self.tag = tag
+ self.implicit = implicit
+ self.value = value
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.style = style
+
+class SequenceStartEvent(CollectionStartEvent):
+ pass
+
+class SequenceEndEvent(CollectionEndEvent):
+ pass
+
+class MappingStartEvent(CollectionStartEvent):
+ pass
+
+class MappingEndEvent(CollectionEndEvent):
+ pass
+
diff --git a/python.d/python_modules/pyyaml3/loader.py b/python.d/python_modules/pyyaml3/loader.py
new file mode 100644
index 000000000..08c8f01b3
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/loader.py
@@ -0,0 +1,40 @@
+
+__all__ = ['BaseLoader', 'SafeLoader', 'Loader']
+
+from .reader import *
+from .scanner import *
+from .parser import *
+from .composer import *
+from .constructor import *
+from .resolver import *
+
+class BaseLoader(Reader, Scanner, Parser, Composer, BaseConstructor, BaseResolver):
+
+ def __init__(self, stream):
+ Reader.__init__(self, stream)
+ Scanner.__init__(self)
+ Parser.__init__(self)
+ Composer.__init__(self)
+ BaseConstructor.__init__(self)
+ BaseResolver.__init__(self)
+
+class SafeLoader(Reader, Scanner, Parser, Composer, SafeConstructor, Resolver):
+
+ def __init__(self, stream):
+ Reader.__init__(self, stream)
+ Scanner.__init__(self)
+ Parser.__init__(self)
+ Composer.__init__(self)
+ SafeConstructor.__init__(self)
+ Resolver.__init__(self)
+
+class Loader(Reader, Scanner, Parser, Composer, Constructor, Resolver):
+
+ def __init__(self, stream):
+ Reader.__init__(self, stream)
+ Scanner.__init__(self)
+ Parser.__init__(self)
+ Composer.__init__(self)
+ Constructor.__init__(self)
+ Resolver.__init__(self)
+
diff --git a/python.d/python_modules/pyyaml3/nodes.py b/python.d/python_modules/pyyaml3/nodes.py
new file mode 100644
index 000000000..c4f070c41
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/nodes.py
@@ -0,0 +1,49 @@
+
+class Node(object):
+ def __init__(self, tag, value, start_mark, end_mark):
+ self.tag = tag
+ self.value = value
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ def __repr__(self):
+ value = self.value
+ #if isinstance(value, list):
+ # if len(value) == 0:
+ # value = '<empty>'
+ # elif len(value) == 1:
+ # value = '<1 item>'
+ # else:
+ # value = '<%d items>' % len(value)
+ #else:
+ # if len(value) > 75:
+ # value = repr(value[:70]+u' ... ')
+ # else:
+ # value = repr(value)
+ value = repr(value)
+ return '%s(tag=%r, value=%s)' % (self.__class__.__name__, self.tag, value)
+
+class ScalarNode(Node):
+ id = 'scalar'
+ def __init__(self, tag, value,
+ start_mark=None, end_mark=None, style=None):
+ self.tag = tag
+ self.value = value
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.style = style
+
+class CollectionNode(Node):
+ def __init__(self, tag, value,
+ start_mark=None, end_mark=None, flow_style=None):
+ self.tag = tag
+ self.value = value
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.flow_style = flow_style
+
+class SequenceNode(CollectionNode):
+ id = 'sequence'
+
+class MappingNode(CollectionNode):
+ id = 'mapping'
+
diff --git a/python.d/python_modules/pyyaml3/parser.py b/python.d/python_modules/pyyaml3/parser.py
new file mode 100644
index 000000000..13a5995d2
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/parser.py
@@ -0,0 +1,589 @@
+
+# The following YAML grammar is LL(1) and is parsed by a recursive descent
+# parser.
+#
+# stream ::= STREAM-START implicit_document? explicit_document* STREAM-END
+# implicit_document ::= block_node DOCUMENT-END*
+# explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+# block_node_or_indentless_sequence ::=
+# ALIAS
+# | properties (block_content | indentless_block_sequence)?
+# | block_content
+# | indentless_block_sequence
+# block_node ::= ALIAS
+# | properties block_content?
+# | block_content
+# flow_node ::= ALIAS
+# | properties flow_content?
+# | flow_content
+# properties ::= TAG ANCHOR? | ANCHOR TAG?
+# block_content ::= block_collection | flow_collection | SCALAR
+# flow_content ::= flow_collection | SCALAR
+# block_collection ::= block_sequence | block_mapping
+# flow_collection ::= flow_sequence | flow_mapping
+# block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
+# indentless_sequence ::= (BLOCK-ENTRY block_node?)+
+# block_mapping ::= BLOCK-MAPPING_START
+# ((KEY block_node_or_indentless_sequence?)?
+# (VALUE block_node_or_indentless_sequence?)?)*
+# BLOCK-END
+# flow_sequence ::= FLOW-SEQUENCE-START
+# (flow_sequence_entry FLOW-ENTRY)*
+# flow_sequence_entry?
+# FLOW-SEQUENCE-END
+# flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+# flow_mapping ::= FLOW-MAPPING-START
+# (flow_mapping_entry FLOW-ENTRY)*
+# flow_mapping_entry?
+# FLOW-MAPPING-END
+# flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+#
+# FIRST sets:
+#
+# stream: { STREAM-START }
+# explicit_document: { DIRECTIVE DOCUMENT-START }
+# implicit_document: FIRST(block_node)
+# block_node: { ALIAS TAG ANCHOR SCALAR BLOCK-SEQUENCE-START BLOCK-MAPPING-START FLOW-SEQUENCE-START FLOW-MAPPING-START }
+# flow_node: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START FLOW-MAPPING-START }
+# block_content: { BLOCK-SEQUENCE-START BLOCK-MAPPING-START FLOW-SEQUENCE-START FLOW-MAPPING-START SCALAR }
+# flow_content: { FLOW-SEQUENCE-START FLOW-MAPPING-START SCALAR }
+# block_collection: { BLOCK-SEQUENCE-START BLOCK-MAPPING-START }
+# flow_collection: { FLOW-SEQUENCE-START FLOW-MAPPING-START }
+# block_sequence: { BLOCK-SEQUENCE-START }
+# block_mapping: { BLOCK-MAPPING-START }
+# block_node_or_indentless_sequence: { ALIAS ANCHOR TAG SCALAR BLOCK-SEQUENCE-START BLOCK-MAPPING-START FLOW-SEQUENCE-START FLOW-MAPPING-START BLOCK-ENTRY }
+# indentless_sequence: { ENTRY }
+# flow_collection: { FLOW-SEQUENCE-START FLOW-MAPPING-START }
+# flow_sequence: { FLOW-SEQUENCE-START }
+# flow_mapping: { FLOW-MAPPING-START }
+# flow_sequence_entry: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START FLOW-MAPPING-START KEY }
+# flow_mapping_entry: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START FLOW-MAPPING-START KEY }
+
+__all__ = ['Parser', 'ParserError']
+
+from .error import MarkedYAMLError
+from .tokens import *
+from .events import *
+from .scanner import *
+
+class ParserError(MarkedYAMLError):
+ pass
+
+class Parser:
+ # Since writing a recursive-descendant parser is a straightforward task, we
+ # do not give many comments here.
+
+ DEFAULT_TAGS = {
+ '!': '!',
+ '!!': 'tag:yaml.org,2002:',
+ }
+
+ def __init__(self):
+ self.current_event = None
+ self.yaml_version = None
+ self.tag_handles = {}
+ self.states = []
+ self.marks = []
+ self.state = self.parse_stream_start
+
+ def dispose(self):
+ # Reset the state attributes (to clear self-references)
+ self.states = []
+ self.state = None
+
+ def check_event(self, *choices):
+ # Check the type of the next event.
+ if self.current_event is None:
+ if self.state:
+ self.current_event = self.state()
+ if self.current_event is not None:
+ if not choices:
+ return True
+ for choice in choices:
+ if isinstance(self.current_event, choice):
+ return True
+ return False
+
+ def peek_event(self):
+ # Get the next event.
+ if self.current_event is None:
+ if self.state:
+ self.current_event = self.state()
+ return self.current_event
+
+ def get_event(self):
+ # Get the next event and proceed further.
+ if self.current_event is None:
+ if self.state:
+ self.current_event = self.state()
+ value = self.current_event
+ self.current_event = None
+ return value
+
+ # stream ::= STREAM-START implicit_document? explicit_document* STREAM-END
+ # implicit_document ::= block_node DOCUMENT-END*
+ # explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+
+ def parse_stream_start(self):
+
+ # Parse the stream start.
+ token = self.get_token()
+ event = StreamStartEvent(token.start_mark, token.end_mark,
+ encoding=token.encoding)
+
+ # Prepare the next state.
+ self.state = self.parse_implicit_document_start
+
+ return event
+
+ def parse_implicit_document_start(self):
+
+ # Parse an implicit document.
+ if not self.check_token(DirectiveToken, DocumentStartToken,
+ StreamEndToken):
+ self.tag_handles = self.DEFAULT_TAGS
+ token = self.peek_token()
+ start_mark = end_mark = token.start_mark
+ event = DocumentStartEvent(start_mark, end_mark,
+ explicit=False)
+
+ # Prepare the next state.
+ self.states.append(self.parse_document_end)
+ self.state = self.parse_block_node
+
+ return event
+
+ else:
+ return self.parse_document_start()
+
+ def parse_document_start(self):
+
+ # Parse any extra document end indicators.
+ while self.check_token(DocumentEndToken):
+ self.get_token()
+
+ # Parse an explicit document.
+ if not self.check_token(StreamEndToken):
+ token = self.peek_token()
+ start_mark = token.start_mark
+ version, tags = self.process_directives()
+ if not self.check_token(DocumentStartToken):
+ raise ParserError(None, None,
+ "expected '<document start>', but found %r"
+ % self.peek_token().id,
+ self.peek_token().start_mark)
+ token = self.get_token()
+ end_mark = token.end_mark
+ event = DocumentStartEvent(start_mark, end_mark,
+ explicit=True, version=version, tags=tags)
+ self.states.append(self.parse_document_end)
+ self.state = self.parse_document_content
+ else:
+ # Parse the end of the stream.
+ token = self.get_token()
+ event = StreamEndEvent(token.start_mark, token.end_mark)
+ assert not self.states
+ assert not self.marks
+ self.state = None
+ return event
+
+ def parse_document_end(self):
+
+ # Parse the document end.
+ token = self.peek_token()
+ start_mark = end_mark = token.start_mark
+ explicit = False
+ if self.check_token(DocumentEndToken):
+ token = self.get_token()
+ end_mark = token.end_mark
+ explicit = True
+ event = DocumentEndEvent(start_mark, end_mark,
+ explicit=explicit)
+
+ # Prepare the next state.
+ self.state = self.parse_document_start
+
+ return event
+
+ def parse_document_content(self):
+ if self.check_token(DirectiveToken,
+ DocumentStartToken, DocumentEndToken, StreamEndToken):
+ event = self.process_empty_scalar(self.peek_token().start_mark)
+ self.state = self.states.pop()
+ return event
+ else:
+ return self.parse_block_node()
+
+ def process_directives(self):
+ self.yaml_version = None
+ self.tag_handles = {}
+ while self.check_token(DirectiveToken):
+ token = self.get_token()
+ if token.name == 'YAML':
+ if self.yaml_version is not None:
+ raise ParserError(None, None,
+ "found duplicate YAML directive", token.start_mark)
+ major, minor = token.value
+ if major != 1:
+ raise ParserError(None, None,
+ "found incompatible YAML document (version 1.* is required)",
+ token.start_mark)
+ self.yaml_version = token.value
+ elif token.name == 'TAG':
+ handle, prefix = token.value
+ if handle in self.tag_handles:
+ raise ParserError(None, None,
+ "duplicate tag handle %r" % handle,
+ token.start_mark)
+ self.tag_handles[handle] = prefix
+ if self.tag_handles:
+ value = self.yaml_version, self.tag_handles.copy()
+ else:
+ value = self.yaml_version, None
+ for key in self.DEFAULT_TAGS:
+ if key not in self.tag_handles:
+ self.tag_handles[key] = self.DEFAULT_TAGS[key]
+ return value
+
+ # block_node_or_indentless_sequence ::= ALIAS
+ # | properties (block_content | indentless_block_sequence)?
+ # | block_content
+ # | indentless_block_sequence
+ # block_node ::= ALIAS
+ # | properties block_content?
+ # | block_content
+ # flow_node ::= ALIAS
+ # | properties flow_content?
+ # | flow_content
+ # properties ::= TAG ANCHOR? | ANCHOR TAG?
+ # block_content ::= block_collection | flow_collection | SCALAR
+ # flow_content ::= flow_collection | SCALAR
+ # block_collection ::= block_sequence | block_mapping
+ # flow_collection ::= flow_sequence | flow_mapping
+
+ def parse_block_node(self):
+ return self.parse_node(block=True)
+
+ def parse_flow_node(self):
+ return self.parse_node()
+
+ def parse_block_node_or_indentless_sequence(self):
+ return self.parse_node(block=True, indentless_sequence=True)
+
+ def parse_node(self, block=False, indentless_sequence=False):
+ if self.check_token(AliasToken):
+ token = self.get_token()
+ event = AliasEvent(token.value, token.start_mark, token.end_mark)
+ self.state = self.states.pop()
+ else:
+ anchor = None
+ tag = None
+ start_mark = end_mark = tag_mark = None
+ if self.check_token(AnchorToken):
+ token = self.get_token()
+ start_mark = token.start_mark
+ end_mark = token.end_mark
+ anchor = token.value
+ if self.check_token(TagToken):
+ token = self.get_token()
+ tag_mark = token.start_mark
+ end_mark = token.end_mark
+ tag = token.value
+ elif self.check_token(TagToken):
+ token = self.get_token()
+ start_mark = tag_mark = token.start_mark
+ end_mark = token.end_mark
+ tag = token.value
+ if self.check_token(AnchorToken):
+ token = self.get_token()
+ end_mark = token.end_mark
+ anchor = token.value
+ if tag is not None:
+ handle, suffix = tag
+ if handle is not None:
+ if handle not in self.tag_handles:
+ raise ParserError("while parsing a node", start_mark,
+ "found undefined tag handle %r" % handle,
+ tag_mark)
+ tag = self.tag_handles[handle]+suffix
+ else:
+ tag = suffix
+ #if tag == '!':
+ # raise ParserError("while parsing a node", start_mark,
+ # "found non-specific tag '!'", tag_mark,
+ # "Please check 'http://pyyaml.org/wiki/YAMLNonSpecificTag' and share your opinion.")
+ if start_mark is None:
+ start_mark = end_mark = self.peek_token().start_mark
+ event = None
+ implicit = (tag is None or tag == '!')
+ if indentless_sequence and self.check_token(BlockEntryToken):
+ end_mark = self.peek_token().end_mark
+ event = SequenceStartEvent(anchor, tag, implicit,
+ start_mark, end_mark)
+ self.state = self.parse_indentless_sequence_entry
+ else:
+ if self.check_token(ScalarToken):
+ token = self.get_token()
+ end_mark = token.end_mark
+ if (token.plain and tag is None) or tag == '!':
+ implicit = (True, False)
+ elif tag is None:
+ implicit = (False, True)
+ else:
+ implicit = (False, False)
+ event = ScalarEvent(anchor, tag, implicit, token.value,
+ start_mark, end_mark, style=token.style)
+ self.state = self.states.pop()
+ elif self.check_token(FlowSequenceStartToken):
+ end_mark = self.peek_token().end_mark
+ event = SequenceStartEvent(anchor, tag, implicit,
+ start_mark, end_mark, flow_style=True)
+ self.state = self.parse_flow_sequence_first_entry
+ elif self.check_token(FlowMappingStartToken):
+ end_mark = self.peek_token().end_mark
+ event = MappingStartEvent(anchor, tag, implicit,
+ start_mark, end_mark, flow_style=True)
+ self.state = self.parse_flow_mapping_first_key
+ elif block and self.check_token(BlockSequenceStartToken):
+ end_mark = self.peek_token().start_mark
+ event = SequenceStartEvent(anchor, tag, implicit,
+ start_mark, end_mark, flow_style=False)
+ self.state = self.parse_block_sequence_first_entry
+ elif block and self.check_token(BlockMappingStartToken):
+ end_mark = self.peek_token().start_mark
+ event = MappingStartEvent(anchor, tag, implicit,
+ start_mark, end_mark, flow_style=False)
+ self.state = self.parse_block_mapping_first_key
+ elif anchor is not None or tag is not None:
+ # Empty scalars are allowed even if a tag or an anchor is
+ # specified.
+ event = ScalarEvent(anchor, tag, (implicit, False), '',
+ start_mark, end_mark)
+ self.state = self.states.pop()
+ else:
+ if block:
+ node = 'block'
+ else:
+ node = 'flow'
+ token = self.peek_token()
+ raise ParserError("while parsing a %s node" % node, start_mark,
+ "expected the node content, but found %r" % token.id,
+ token.start_mark)
+ return event
+
+ # block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
+
+ def parse_block_sequence_first_entry(self):
+ token = self.get_token()
+ self.marks.append(token.start_mark)
+ return self.parse_block_sequence_entry()
+
+ def parse_block_sequence_entry(self):
+ if self.check_token(BlockEntryToken):
+ token = self.get_token()
+ if not self.check_token(BlockEntryToken, BlockEndToken):
+ self.states.append(self.parse_block_sequence_entry)
+ return self.parse_block_node()
+ else:
+ self.state = self.parse_block_sequence_entry
+ return self.process_empty_scalar(token.end_mark)
+ if not self.check_token(BlockEndToken):
+ token = self.peek_token()
+ raise ParserError("while parsing a block collection", self.marks[-1],
+ "expected <block end>, but found %r" % token.id, token.start_mark)
+ token = self.get_token()
+ event = SequenceEndEvent(token.start_mark, token.end_mark)
+ self.state = self.states.pop()
+ self.marks.pop()
+ return event
+
+ # indentless_sequence ::= (BLOCK-ENTRY block_node?)+
+
+ def parse_indentless_sequence_entry(self):
+ if self.check_token(BlockEntryToken):
+ token = self.get_token()
+ if not self.check_token(BlockEntryToken,
+ KeyToken, ValueToken, BlockEndToken):
+ self.states.append(self.parse_indentless_sequence_entry)
+ return self.parse_block_node()
+ else:
+ self.state = self.parse_indentless_sequence_entry
+ return self.process_empty_scalar(token.end_mark)
+ token = self.peek_token()
+ event = SequenceEndEvent(token.start_mark, token.start_mark)
+ self.state = self.states.pop()
+ return event
+
+ # block_mapping ::= BLOCK-MAPPING_START
+ # ((KEY block_node_or_indentless_sequence?)?
+ # (VALUE block_node_or_indentless_sequence?)?)*
+ # BLOCK-END
+
+ def parse_block_mapping_first_key(self):
+ token = self.get_token()
+ self.marks.append(token.start_mark)
+ return self.parse_block_mapping_key()
+
+ def parse_block_mapping_key(self):
+ if self.check_token(KeyToken):
+ token = self.get_token()
+ if not self.check_token(KeyToken, ValueToken, BlockEndToken):
+ self.states.append(self.parse_block_mapping_value)
+ return self.parse_block_node_or_indentless_sequence()
+ else:
+ self.state = self.parse_block_mapping_value
+ return self.process_empty_scalar(token.end_mark)
+ if not self.check_token(BlockEndToken):
+ token = self.peek_token()
+ raise ParserError("while parsing a block mapping", self.marks[-1],
+ "expected <block end>, but found %r" % token.id, token.start_mark)
+ token = self.get_token()
+ event = MappingEndEvent(token.start_mark, token.end_mark)
+ self.state = self.states.pop()
+ self.marks.pop()
+ return event
+
+ def parse_block_mapping_value(self):
+ if self.check_token(ValueToken):
+ token = self.get_token()
+ if not self.check_token(KeyToken, ValueToken, BlockEndToken):
+ self.states.append(self.parse_block_mapping_key)
+ return self.parse_block_node_or_indentless_sequence()
+ else:
+ self.state = self.parse_block_mapping_key
+ return self.process_empty_scalar(token.end_mark)
+ else:
+ self.state = self.parse_block_mapping_key
+ token = self.peek_token()
+ return self.process_empty_scalar(token.start_mark)
+
+ # flow_sequence ::= FLOW-SEQUENCE-START
+ # (flow_sequence_entry FLOW-ENTRY)*
+ # flow_sequence_entry?
+ # FLOW-SEQUENCE-END
+ # flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+ #
+ # Note that while production rules for both flow_sequence_entry and
+ # flow_mapping_entry are equal, their interpretations are different.
+ # For `flow_sequence_entry`, the part `KEY flow_node? (VALUE flow_node?)?`
+ # generate an inline mapping (set syntax).
+
+ def parse_flow_sequence_first_entry(self):
+ token = self.get_token()
+ self.marks.append(token.start_mark)
+ return self.parse_flow_sequence_entry(first=True)
+
+ def parse_flow_sequence_entry(self, first=False):
+ if not self.check_token(FlowSequenceEndToken):
+ if not first:
+ if self.check_token(FlowEntryToken):
+ self.get_token()
+ else:
+ token = self.peek_token()
+ raise ParserError("while parsing a flow sequence", self.marks[-1],
+ "expected ',' or ']', but got %r" % token.id, token.start_mark)
+
+ if self.check_token(KeyToken):
+ token = self.peek_token()
+ event = MappingStartEvent(None, None, True,
+ token.start_mark, token.end_mark,
+ flow_style=True)
+ self.state = self.parse_flow_sequence_entry_mapping_key
+ return event
+ elif not self.check_token(FlowSequenceEndToken):
+ self.states.append(self.parse_flow_sequence_entry)
+ return self.parse_flow_node()
+ token = self.get_token()
+ event = SequenceEndEvent(token.start_mark, token.end_mark)
+ self.state = self.states.pop()
+ self.marks.pop()
+ return event
+
+ def parse_flow_sequence_entry_mapping_key(self):
+ token = self.get_token()
+ if not self.check_token(ValueToken,
+ FlowEntryToken, FlowSequenceEndToken):
+ self.states.append(self.parse_flow_sequence_entry_mapping_value)
+ return self.parse_flow_node()
+ else:
+ self.state = self.parse_flow_sequence_entry_mapping_value
+ return self.process_empty_scalar(token.end_mark)
+
+ def parse_flow_sequence_entry_mapping_value(self):
+ if self.check_token(ValueToken):
+ token = self.get_token()
+ if not self.check_token(FlowEntryToken, FlowSequenceEndToken):
+ self.states.append(self.parse_flow_sequence_entry_mapping_end)
+ return self.parse_flow_node()
+ else:
+ self.state = self.parse_flow_sequence_entry_mapping_end
+ return self.process_empty_scalar(token.end_mark)
+ else:
+ self.state = self.parse_flow_sequence_entry_mapping_end
+ token = self.peek_token()
+ return self.process_empty_scalar(token.start_mark)
+
+ def parse_flow_sequence_entry_mapping_end(self):
+ self.state = self.parse_flow_sequence_entry
+ token = self.peek_token()
+ return MappingEndEvent(token.start_mark, token.start_mark)
+
+ # flow_mapping ::= FLOW-MAPPING-START
+ # (flow_mapping_entry FLOW-ENTRY)*
+ # flow_mapping_entry?
+ # FLOW-MAPPING-END
+ # flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+
+ def parse_flow_mapping_first_key(self):
+ token = self.get_token()
+ self.marks.append(token.start_mark)
+ return self.parse_flow_mapping_key(first=True)
+
+ def parse_flow_mapping_key(self, first=False):
+ if not self.check_token(FlowMappingEndToken):
+ if not first:
+ if self.check_token(FlowEntryToken):
+ self.get_token()
+ else:
+ token = self.peek_token()
+ raise ParserError("while parsing a flow mapping", self.marks[-1],
+ "expected ',' or '}', but got %r" % token.id, token.start_mark)
+ if self.check_token(KeyToken):
+ token = self.get_token()
+ if not self.check_token(ValueToken,
+ FlowEntryToken, FlowMappingEndToken):
+ self.states.append(self.parse_flow_mapping_value)
+ return self.parse_flow_node()
+ else:
+ self.state = self.parse_flow_mapping_value
+ return self.process_empty_scalar(token.end_mark)
+ elif not self.check_token(FlowMappingEndToken):
+ self.states.append(self.parse_flow_mapping_empty_value)
+ return self.parse_flow_node()
+ token = self.get_token()
+ event = MappingEndEvent(token.start_mark, token.end_mark)
+ self.state = self.states.pop()
+ self.marks.pop()
+ return event
+
+ def parse_flow_mapping_value(self):
+ if self.check_token(ValueToken):
+ token = self.get_token()
+ if not self.check_token(FlowEntryToken, FlowMappingEndToken):
+ self.states.append(self.parse_flow_mapping_key)
+ return self.parse_flow_node()
+ else:
+ self.state = self.parse_flow_mapping_key
+ return self.process_empty_scalar(token.end_mark)
+ else:
+ self.state = self.parse_flow_mapping_key
+ token = self.peek_token()
+ return self.process_empty_scalar(token.start_mark)
+
+ def parse_flow_mapping_empty_value(self):
+ self.state = self.parse_flow_mapping_key
+ return self.process_empty_scalar(self.peek_token().start_mark)
+
+ def process_empty_scalar(self, mark):
+ return ScalarEvent(None, None, (True, False), '', mark, mark)
+
diff --git a/python.d/python_modules/pyyaml3/reader.py b/python.d/python_modules/pyyaml3/reader.py
new file mode 100644
index 000000000..f70e920f4
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/reader.py
@@ -0,0 +1,192 @@
+# This module contains abstractions for the input stream. You don't have to
+# looks further, there are no pretty code.
+#
+# We define two classes here.
+#
+# Mark(source, line, column)
+# It's just a record and its only use is producing nice error messages.
+# Parser does not use it for any other purposes.
+#
+# Reader(source, data)
+# Reader determines the encoding of `data` and converts it to unicode.
+# Reader provides the following methods and attributes:
+# reader.peek(length=1) - return the next `length` characters
+# reader.forward(length=1) - move the current position to `length` characters.
+# reader.index - the number of the current character.
+# reader.line, stream.column - the line and the column of the current character.
+
+__all__ = ['Reader', 'ReaderError']
+
+from .error import YAMLError, Mark
+
+import codecs, re
+
+class ReaderError(YAMLError):
+
+ def __init__(self, name, position, character, encoding, reason):
+ self.name = name
+ self.character = character
+ self.position = position
+ self.encoding = encoding
+ self.reason = reason
+
+ def __str__(self):
+ if isinstance(self.character, bytes):
+ return "'%s' codec can't decode byte #x%02x: %s\n" \
+ " in \"%s\", position %d" \
+ % (self.encoding, ord(self.character), self.reason,
+ self.name, self.position)
+ else:
+ return "unacceptable character #x%04x: %s\n" \
+ " in \"%s\", position %d" \
+ % (self.character, self.reason,
+ self.name, self.position)
+
+class Reader(object):
+ # Reader:
+ # - determines the data encoding and converts it to a unicode string,
+ # - checks if characters are in allowed range,
+ # - adds '\0' to the end.
+
+ # Reader accepts
+ # - a `bytes` object,
+ # - a `str` object,
+ # - a file-like object with its `read` method returning `str`,
+ # - a file-like object with its `read` method returning `unicode`.
+
+ # Yeah, it's ugly and slow.
+
+ def __init__(self, stream):
+ self.name = None
+ self.stream = None
+ self.stream_pointer = 0
+ self.eof = True
+ self.buffer = ''
+ self.pointer = 0
+ self.raw_buffer = None
+ self.raw_decode = None
+ self.encoding = None
+ self.index = 0
+ self.line = 0
+ self.column = 0
+ if isinstance(stream, str):
+ self.name = "<unicode string>"
+ self.check_printable(stream)
+ self.buffer = stream+'\0'
+ elif isinstance(stream, bytes):
+ self.name = "<byte string>"
+ self.raw_buffer = stream
+ self.determine_encoding()
+ else:
+ self.stream = stream
+ self.name = getattr(stream, 'name', "<file>")
+ self.eof = False
+ self.raw_buffer = None
+ self.determine_encoding()
+
+ def peek(self, index=0):
+ try:
+ return self.buffer[self.pointer+index]
+ except IndexError:
+ self.update(index+1)
+ return self.buffer[self.pointer+index]
+
+ def prefix(self, length=1):
+ if self.pointer+length >= len(self.buffer):
+ self.update(length)
+ return self.buffer[self.pointer:self.pointer+length]
+
+ def forward(self, length=1):
+ if self.pointer+length+1 >= len(self.buffer):
+ self.update(length+1)
+ while length:
+ ch = self.buffer[self.pointer]
+ self.pointer += 1
+ self.index += 1
+ if ch in '\n\x85\u2028\u2029' \
+ or (ch == '\r' and self.buffer[self.pointer] != '\n'):
+ self.line += 1
+ self.column = 0
+ elif ch != '\uFEFF':
+ self.column += 1
+ length -= 1
+
+ def get_mark(self):
+ if self.stream is None:
+ return Mark(self.name, self.index, self.line, self.column,
+ self.buffer, self.pointer)
+ else:
+ return Mark(self.name, self.index, self.line, self.column,
+ None, None)
+
+ def determine_encoding(self):
+ while not self.eof and (self.raw_buffer is None or len(self.raw_buffer) < 2):
+ self.update_raw()
+ if isinstance(self.raw_buffer, bytes):
+ if self.raw_buffer.startswith(codecs.BOM_UTF16_LE):
+ self.raw_decode = codecs.utf_16_le_decode
+ self.encoding = 'utf-16-le'
+ elif self.raw_buffer.startswith(codecs.BOM_UTF16_BE):
+ self.raw_decode = codecs.utf_16_be_decode
+ self.encoding = 'utf-16-be'
+ else:
+ self.raw_decode = codecs.utf_8_decode
+ self.encoding = 'utf-8'
+ self.update(1)
+
+ NON_PRINTABLE = re.compile('[^\x09\x0A\x0D\x20-\x7E\x85\xA0-\uD7FF\uE000-\uFFFD]')
+ def check_printable(self, data):
+ match = self.NON_PRINTABLE.search(data)
+ if match:
+ character = match.group()
+ position = self.index+(len(self.buffer)-self.pointer)+match.start()
+ raise ReaderError(self.name, position, ord(character),
+ 'unicode', "special characters are not allowed")
+
+ def update(self, length):
+ if self.raw_buffer is None:
+ return
+ self.buffer = self.buffer[self.pointer:]
+ self.pointer = 0
+ while len(self.buffer) < length:
+ if not self.eof:
+ self.update_raw()
+ if self.raw_decode is not None:
+ try:
+ data, converted = self.raw_decode(self.raw_buffer,
+ 'strict', self.eof)
+ except UnicodeDecodeError as exc:
+ character = self.raw_buffer[exc.start]
+ if self.stream is not None:
+ position = self.stream_pointer-len(self.raw_buffer)+exc.start
+ else:
+ position = exc.start
+ raise ReaderError(self.name, position, character,
+ exc.encoding, exc.reason)
+ else:
+ data = self.raw_buffer
+ converted = len(data)
+ self.check_printable(data)
+ self.buffer += data
+ self.raw_buffer = self.raw_buffer[converted:]
+ if self.eof:
+ self.buffer += '\0'
+ self.raw_buffer = None
+ break
+
+ def update_raw(self, size=4096):
+ data = self.stream.read(size)
+ if self.raw_buffer is None:
+ self.raw_buffer = data
+ else:
+ self.raw_buffer += data
+ self.stream_pointer += len(data)
+ if not data:
+ self.eof = True
+
+#try:
+# import psyco
+# psyco.bind(Reader)
+#except ImportError:
+# pass
+
diff --git a/python.d/python_modules/pyyaml3/representer.py b/python.d/python_modules/pyyaml3/representer.py
new file mode 100644
index 000000000..67cd6fd25
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/representer.py
@@ -0,0 +1,374 @@
+
+__all__ = ['BaseRepresenter', 'SafeRepresenter', 'Representer',
+ 'RepresenterError']
+
+from .error import *
+from .nodes import *
+
+import datetime, sys, copyreg, types, base64
+
+class RepresenterError(YAMLError):
+ pass
+
+class BaseRepresenter:
+
+ yaml_representers = {}
+ yaml_multi_representers = {}
+
+ def __init__(self, default_style=None, default_flow_style=None):
+ self.default_style = default_style
+ self.default_flow_style = default_flow_style
+ self.represented_objects = {}
+ self.object_keeper = []
+ self.alias_key = None
+
+ def represent(self, data):
+ node = self.represent_data(data)
+ self.serialize(node)
+ self.represented_objects = {}
+ self.object_keeper = []
+ self.alias_key = None
+
+ def represent_data(self, data):
+ if self.ignore_aliases(data):
+ self.alias_key = None
+ else:
+ self.alias_key = id(data)
+ if self.alias_key is not None:
+ if self.alias_key in self.represented_objects:
+ node = self.represented_objects[self.alias_key]
+ #if node is None:
+ # raise RepresenterError("recursive objects are not allowed: %r" % data)
+ return node
+ #self.represented_objects[alias_key] = None
+ self.object_keeper.append(data)
+ data_types = type(data).__mro__
+ if data_types[0] in self.yaml_representers:
+ node = self.yaml_representers[data_types[0]](self, data)
+ else:
+ for data_type in data_types:
+ if data_type in self.yaml_multi_representers:
+ node = self.yaml_multi_representers[data_type](self, data)
+ break
+ else:
+ if None in self.yaml_multi_representers:
+ node = self.yaml_multi_representers[None](self, data)
+ elif None in self.yaml_representers:
+ node = self.yaml_representers[None](self, data)
+ else:
+ node = ScalarNode(None, str(data))
+ #if alias_key is not None:
+ # self.represented_objects[alias_key] = node
+ return node
+
+ @classmethod
+ def add_representer(cls, data_type, representer):
+ if not 'yaml_representers' in cls.__dict__:
+ cls.yaml_representers = cls.yaml_representers.copy()
+ cls.yaml_representers[data_type] = representer
+
+ @classmethod
+ def add_multi_representer(cls, data_type, representer):
+ if not 'yaml_multi_representers' in cls.__dict__:
+ cls.yaml_multi_representers = cls.yaml_multi_representers.copy()
+ cls.yaml_multi_representers[data_type] = representer
+
+ def represent_scalar(self, tag, value, style=None):
+ if style is None:
+ style = self.default_style
+ node = ScalarNode(tag, value, style=style)
+ if self.alias_key is not None:
+ self.represented_objects[self.alias_key] = node
+ return node
+
+ def represent_sequence(self, tag, sequence, flow_style=None):
+ value = []
+ node = SequenceNode(tag, value, flow_style=flow_style)
+ if self.alias_key is not None:
+ self.represented_objects[self.alias_key] = node
+ best_style = True
+ for item in sequence:
+ node_item = self.represent_data(item)
+ if not (isinstance(node_item, ScalarNode) and not node_item.style):
+ best_style = False
+ value.append(node_item)
+ if flow_style is None:
+ if self.default_flow_style is not None:
+ node.flow_style = self.default_flow_style
+ else:
+ node.flow_style = best_style
+ return node
+
+ def represent_mapping(self, tag, mapping, flow_style=None):
+ value = []
+ node = MappingNode(tag, value, flow_style=flow_style)
+ if self.alias_key is not None:
+ self.represented_objects[self.alias_key] = node
+ best_style = True
+ if hasattr(mapping, 'items'):
+ mapping = list(mapping.items())
+ try:
+ mapping = sorted(mapping)
+ except TypeError:
+ pass
+ for item_key, item_value in mapping:
+ node_key = self.represent_data(item_key)
+ node_value = self.represent_data(item_value)
+ if not (isinstance(node_key, ScalarNode) and not node_key.style):
+ best_style = False
+ if not (isinstance(node_value, ScalarNode) and not node_value.style):
+ best_style = False
+ value.append((node_key, node_value))
+ if flow_style is None:
+ if self.default_flow_style is not None:
+ node.flow_style = self.default_flow_style
+ else:
+ node.flow_style = best_style
+ return node
+
+ def ignore_aliases(self, data):
+ return False
+
+class SafeRepresenter(BaseRepresenter):
+
+ def ignore_aliases(self, data):
+ if data in [None, ()]:
+ return True
+ if isinstance(data, (str, bytes, bool, int, float)):
+ return True
+
+ def represent_none(self, data):
+ return self.represent_scalar('tag:yaml.org,2002:null', 'null')
+
+ def represent_str(self, data):
+ return self.represent_scalar('tag:yaml.org,2002:str', data)
+
+ def represent_binary(self, data):
+ if hasattr(base64, 'encodebytes'):
+ data = base64.encodebytes(data).decode('ascii')
+ else:
+ data = base64.encodestring(data).decode('ascii')
+ return self.represent_scalar('tag:yaml.org,2002:binary', data, style='|')
+
+ def represent_bool(self, data):
+ if data:
+ value = 'true'
+ else:
+ value = 'false'
+ return self.represent_scalar('tag:yaml.org,2002:bool', value)
+
+ def represent_int(self, data):
+ return self.represent_scalar('tag:yaml.org,2002:int', str(data))
+
+ inf_value = 1e300
+ while repr(inf_value) != repr(inf_value*inf_value):
+ inf_value *= inf_value
+
+ def represent_float(self, data):
+ if data != data or (data == 0.0 and data == 1.0):
+ value = '.nan'
+ elif data == self.inf_value:
+ value = '.inf'
+ elif data == -self.inf_value:
+ value = '-.inf'
+ else:
+ value = repr(data).lower()
+ # Note that in some cases `repr(data)` represents a float number
+ # without the decimal parts. For instance:
+ # >>> repr(1e17)
+ # '1e17'
+ # Unfortunately, this is not a valid float representation according
+ # to the definition of the `!!float` tag. We fix this by adding
+ # '.0' before the 'e' symbol.
+ if '.' not in value and 'e' in value:
+ value = value.replace('e', '.0e', 1)
+ return self.represent_scalar('tag:yaml.org,2002:float', value)
+
+ def represent_list(self, data):
+ #pairs = (len(data) > 0 and isinstance(data, list))
+ #if pairs:
+ # for item in data:
+ # if not isinstance(item, tuple) or len(item) != 2:
+ # pairs = False
+ # break
+ #if not pairs:
+ return self.represent_sequence('tag:yaml.org,2002:seq', data)
+ #value = []
+ #for item_key, item_value in data:
+ # value.append(self.represent_mapping(u'tag:yaml.org,2002:map',
+ # [(item_key, item_value)]))
+ #return SequenceNode(u'tag:yaml.org,2002:pairs', value)
+
+ def represent_dict(self, data):
+ return self.represent_mapping('tag:yaml.org,2002:map', data)
+
+ def represent_set(self, data):
+ value = {}
+ for key in data:
+ value[key] = None
+ return self.represent_mapping('tag:yaml.org,2002:set', value)
+
+ def represent_date(self, data):
+ value = data.isoformat()
+ return self.represent_scalar('tag:yaml.org,2002:timestamp', value)
+
+ def represent_datetime(self, data):
+ value = data.isoformat(' ')
+ return self.represent_scalar('tag:yaml.org,2002:timestamp', value)
+
+ def represent_yaml_object(self, tag, data, cls, flow_style=None):
+ if hasattr(data, '__getstate__'):
+ state = data.__getstate__()
+ else:
+ state = data.__dict__.copy()
+ return self.represent_mapping(tag, state, flow_style=flow_style)
+
+ def represent_undefined(self, data):
+ raise RepresenterError("cannot represent an object: %s" % data)
+
+SafeRepresenter.add_representer(type(None),
+ SafeRepresenter.represent_none)
+
+SafeRepresenter.add_representer(str,
+ SafeRepresenter.represent_str)
+
+SafeRepresenter.add_representer(bytes,
+ SafeRepresenter.represent_binary)
+
+SafeRepresenter.add_representer(bool,
+ SafeRepresenter.represent_bool)
+
+SafeRepresenter.add_representer(int,
+ SafeRepresenter.represent_int)
+
+SafeRepresenter.add_representer(float,
+ SafeRepresenter.represent_float)
+
+SafeRepresenter.add_representer(list,
+ SafeRepresenter.represent_list)
+
+SafeRepresenter.add_representer(tuple,
+ SafeRepresenter.represent_list)
+
+SafeRepresenter.add_representer(dict,
+ SafeRepresenter.represent_dict)
+
+SafeRepresenter.add_representer(set,
+ SafeRepresenter.represent_set)
+
+SafeRepresenter.add_representer(datetime.date,
+ SafeRepresenter.represent_date)
+
+SafeRepresenter.add_representer(datetime.datetime,
+ SafeRepresenter.represent_datetime)
+
+SafeRepresenter.add_representer(None,
+ SafeRepresenter.represent_undefined)
+
+class Representer(SafeRepresenter):
+
+ def represent_complex(self, data):
+ if data.imag == 0.0:
+ data = '%r' % data.real
+ elif data.real == 0.0:
+ data = '%rj' % data.imag
+ elif data.imag > 0:
+ data = '%r+%rj' % (data.real, data.imag)
+ else:
+ data = '%r%rj' % (data.real, data.imag)
+ return self.represent_scalar('tag:yaml.org,2002:python/complex', data)
+
+ def represent_tuple(self, data):
+ return self.represent_sequence('tag:yaml.org,2002:python/tuple', data)
+
+ def represent_name(self, data):
+ name = '%s.%s' % (data.__module__, data.__name__)
+ return self.represent_scalar('tag:yaml.org,2002:python/name:'+name, '')
+
+ def represent_module(self, data):
+ return self.represent_scalar(
+ 'tag:yaml.org,2002:python/module:'+data.__name__, '')
+
+ def represent_object(self, data):
+ # We use __reduce__ API to save the data. data.__reduce__ returns
+ # a tuple of length 2-5:
+ # (function, args, state, listitems, dictitems)
+
+ # For reconstructing, we calls function(*args), then set its state,
+ # listitems, and dictitems if they are not None.
+
+ # A special case is when function.__name__ == '__newobj__'. In this
+ # case we create the object with args[0].__new__(*args).
+
+ # Another special case is when __reduce__ returns a string - we don't
+ # support it.
+
+ # We produce a !!python/object, !!python/object/new or
+ # !!python/object/apply node.
+
+ cls = type(data)
+ if cls in copyreg.dispatch_table:
+ reduce = copyreg.dispatch_table[cls](data)
+ elif hasattr(data, '__reduce_ex__'):
+ reduce = data.__reduce_ex__(2)
+ elif hasattr(data, '__reduce__'):
+ reduce = data.__reduce__()
+ else:
+ raise RepresenterError("cannot represent object: %r" % data)
+ reduce = (list(reduce)+[None]*5)[:5]
+ function, args, state, listitems, dictitems = reduce
+ args = list(args)
+ if state is None:
+ state = {}
+ if listitems is not None:
+ listitems = list(listitems)
+ if dictitems is not None:
+ dictitems = dict(dictitems)
+ if function.__name__ == '__newobj__':
+ function = args[0]
+ args = args[1:]
+ tag = 'tag:yaml.org,2002:python/object/new:'
+ newobj = True
+ else:
+ tag = 'tag:yaml.org,2002:python/object/apply:'
+ newobj = False
+ function_name = '%s.%s' % (function.__module__, function.__name__)
+ if not args and not listitems and not dictitems \
+ and isinstance(state, dict) and newobj:
+ return self.represent_mapping(
+ 'tag:yaml.org,2002:python/object:'+function_name, state)
+ if not listitems and not dictitems \
+ and isinstance(state, dict) and not state:
+ return self.represent_sequence(tag+function_name, args)
+ value = {}
+ if args:
+ value['args'] = args
+ if state or not isinstance(state, dict):
+ value['state'] = state
+ if listitems:
+ value['listitems'] = listitems
+ if dictitems:
+ value['dictitems'] = dictitems
+ return self.represent_mapping(tag+function_name, value)
+
+Representer.add_representer(complex,
+ Representer.represent_complex)
+
+Representer.add_representer(tuple,
+ Representer.represent_tuple)
+
+Representer.add_representer(type,
+ Representer.represent_name)
+
+Representer.add_representer(types.FunctionType,
+ Representer.represent_name)
+
+Representer.add_representer(types.BuiltinFunctionType,
+ Representer.represent_name)
+
+Representer.add_representer(types.ModuleType,
+ Representer.represent_module)
+
+Representer.add_multi_representer(object,
+ Representer.represent_object)
+
diff --git a/python.d/python_modules/pyyaml3/resolver.py b/python.d/python_modules/pyyaml3/resolver.py
new file mode 100644
index 000000000..0eece2582
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/resolver.py
@@ -0,0 +1,224 @@
+
+__all__ = ['BaseResolver', 'Resolver']
+
+from .error import *
+from .nodes import *
+
+import re
+
+class ResolverError(YAMLError):
+ pass
+
+class BaseResolver:
+
+ DEFAULT_SCALAR_TAG = 'tag:yaml.org,2002:str'
+ DEFAULT_SEQUENCE_TAG = 'tag:yaml.org,2002:seq'
+ DEFAULT_MAPPING_TAG = 'tag:yaml.org,2002:map'
+
+ yaml_implicit_resolvers = {}
+ yaml_path_resolvers = {}
+
+ def __init__(self):
+ self.resolver_exact_paths = []
+ self.resolver_prefix_paths = []
+
+ @classmethod
+ def add_implicit_resolver(cls, tag, regexp, first):
+ if not 'yaml_implicit_resolvers' in cls.__dict__:
+ cls.yaml_implicit_resolvers = cls.yaml_implicit_resolvers.copy()
+ if first is None:
+ first = [None]
+ for ch in first:
+ cls.yaml_implicit_resolvers.setdefault(ch, []).append((tag, regexp))
+
+ @classmethod
+ def add_path_resolver(cls, tag, path, kind=None):
+ # Note: `add_path_resolver` is experimental. The API could be changed.
+ # `new_path` is a pattern that is matched against the path from the
+ # root to the node that is being considered. `node_path` elements are
+ # tuples `(node_check, index_check)`. `node_check` is a node class:
+ # `ScalarNode`, `SequenceNode`, `MappingNode` or `None`. `None`
+ # matches any kind of a node. `index_check` could be `None`, a boolean
+ # value, a string value, or a number. `None` and `False` match against
+ # any _value_ of sequence and mapping nodes. `True` matches against
+ # any _key_ of a mapping node. A string `index_check` matches against
+ # a mapping value that corresponds to a scalar key which content is
+ # equal to the `index_check` value. An integer `index_check` matches
+ # against a sequence value with the index equal to `index_check`.
+ if not 'yaml_path_resolvers' in cls.__dict__:
+ cls.yaml_path_resolvers = cls.yaml_path_resolvers.copy()
+ new_path = []
+ for element in path:
+ if isinstance(element, (list, tuple)):
+ if len(element) == 2:
+ node_check, index_check = element
+ elif len(element) == 1:
+ node_check = element[0]
+ index_check = True
+ else:
+ raise ResolverError("Invalid path element: %s" % element)
+ else:
+ node_check = None
+ index_check = element
+ if node_check is str:
+ node_check = ScalarNode
+ elif node_check is list:
+ node_check = SequenceNode
+ elif node_check is dict:
+ node_check = MappingNode
+ elif node_check not in [ScalarNode, SequenceNode, MappingNode] \
+ and not isinstance(node_check, str) \
+ and node_check is not None:
+ raise ResolverError("Invalid node checker: %s" % node_check)
+ if not isinstance(index_check, (str, int)) \
+ and index_check is not None:
+ raise ResolverError("Invalid index checker: %s" % index_check)
+ new_path.append((node_check, index_check))
+ if kind is str:
+ kind = ScalarNode
+ elif kind is list:
+ kind = SequenceNode
+ elif kind is dict:
+ kind = MappingNode
+ elif kind not in [ScalarNode, SequenceNode, MappingNode] \
+ and kind is not None:
+ raise ResolverError("Invalid node kind: %s" % kind)
+ cls.yaml_path_resolvers[tuple(new_path), kind] = tag
+
+ def descend_resolver(self, current_node, current_index):
+ if not self.yaml_path_resolvers:
+ return
+ exact_paths = {}
+ prefix_paths = []
+ if current_node:
+ depth = len(self.resolver_prefix_paths)
+ for path, kind in self.resolver_prefix_paths[-1]:
+ if self.check_resolver_prefix(depth, path, kind,
+ current_node, current_index):
+ if len(path) > depth:
+ prefix_paths.append((path, kind))
+ else:
+ exact_paths[kind] = self.yaml_path_resolvers[path, kind]
+ else:
+ for path, kind in self.yaml_path_resolvers:
+ if not path:
+ exact_paths[kind] = self.yaml_path_resolvers[path, kind]
+ else:
+ prefix_paths.append((path, kind))
+ self.resolver_exact_paths.append(exact_paths)
+ self.resolver_prefix_paths.append(prefix_paths)
+
+ def ascend_resolver(self):
+ if not self.yaml_path_resolvers:
+ return
+ self.resolver_exact_paths.pop()
+ self.resolver_prefix_paths.pop()
+
+ def check_resolver_prefix(self, depth, path, kind,
+ current_node, current_index):
+ node_check, index_check = path[depth-1]
+ if isinstance(node_check, str):
+ if current_node.tag != node_check:
+ return
+ elif node_check is not None:
+ if not isinstance(current_node, node_check):
+ return
+ if index_check is True and current_index is not None:
+ return
+ if (index_check is False or index_check is None) \
+ and current_index is None:
+ return
+ if isinstance(index_check, str):
+ if not (isinstance(current_index, ScalarNode)
+ and index_check == current_index.value):
+ return
+ elif isinstance(index_check, int) and not isinstance(index_check, bool):
+ if index_check != current_index:
+ return
+ return True
+
+ def resolve(self, kind, value, implicit):
+ if kind is ScalarNode and implicit[0]:
+ if value == '':
+ resolvers = self.yaml_implicit_resolvers.get('', [])
+ else:
+ resolvers = self.yaml_implicit_resolvers.get(value[0], [])
+ resolvers += self.yaml_implicit_resolvers.get(None, [])
+ for tag, regexp in resolvers:
+ if regexp.match(value):
+ return tag
+ implicit = implicit[1]
+ if self.yaml_path_resolvers:
+ exact_paths = self.resolver_exact_paths[-1]
+ if kind in exact_paths:
+ return exact_paths[kind]
+ if None in exact_paths:
+ return exact_paths[None]
+ if kind is ScalarNode:
+ return self.DEFAULT_SCALAR_TAG
+ elif kind is SequenceNode:
+ return self.DEFAULT_SEQUENCE_TAG
+ elif kind is MappingNode:
+ return self.DEFAULT_MAPPING_TAG
+
+class Resolver(BaseResolver):
+ pass
+
+Resolver.add_implicit_resolver(
+ 'tag:yaml.org,2002:bool',
+ re.compile(r'''^(?:yes|Yes|YES|no|No|NO
+ |true|True|TRUE|false|False|FALSE
+ |on|On|ON|off|Off|OFF)$''', re.X),
+ list('yYnNtTfFoO'))
+
+Resolver.add_implicit_resolver(
+ 'tag:yaml.org,2002:float',
+ re.compile(r'''^(?:[-+]?(?:[0-9][0-9_]*)\.[0-9_]*(?:[eE][-+][0-9]+)?
+ |\.[0-9_]+(?:[eE][-+][0-9]+)?
+ |[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+\.[0-9_]*
+ |[-+]?\.(?:inf|Inf|INF)
+ |\.(?:nan|NaN|NAN))$''', re.X),
+ list('-+0123456789.'))
+
+Resolver.add_implicit_resolver(
+ 'tag:yaml.org,2002:int',
+ re.compile(r'''^(?:[-+]?0b[0-1_]+
+ |[-+]?0[0-7_]+
+ |[-+]?(?:0|[1-9][0-9_]*)
+ |[-+]?0x[0-9a-fA-F_]+
+ |[-+]?[1-9][0-9_]*(?::[0-5]?[0-9])+)$''', re.X),
+ list('-+0123456789'))
+
+Resolver.add_implicit_resolver(
+ 'tag:yaml.org,2002:merge',
+ re.compile(r'^(?:<<)$'),
+ ['<'])
+
+Resolver.add_implicit_resolver(
+ 'tag:yaml.org,2002:null',
+ re.compile(r'''^(?: ~
+ |null|Null|NULL
+ | )$''', re.X),
+ ['~', 'n', 'N', ''])
+
+Resolver.add_implicit_resolver(
+ 'tag:yaml.org,2002:timestamp',
+ re.compile(r'''^(?:[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]
+ |[0-9][0-9][0-9][0-9] -[0-9][0-9]? -[0-9][0-9]?
+ (?:[Tt]|[ \t]+)[0-9][0-9]?
+ :[0-9][0-9] :[0-9][0-9] (?:\.[0-9]*)?
+ (?:[ \t]*(?:Z|[-+][0-9][0-9]?(?::[0-9][0-9])?))?)$''', re.X),
+ list('0123456789'))
+
+Resolver.add_implicit_resolver(
+ 'tag:yaml.org,2002:value',
+ re.compile(r'^(?:=)$'),
+ ['='])
+
+# The following resolver is only for documentation purposes. It cannot work
+# because plain scalars cannot start with '!', '&', or '*'.
+Resolver.add_implicit_resolver(
+ 'tag:yaml.org,2002:yaml',
+ re.compile(r'^(?:!|&|\*)$'),
+ list('!&*'))
+
diff --git a/python.d/python_modules/pyyaml3/scanner.py b/python.d/python_modules/pyyaml3/scanner.py
new file mode 100644
index 000000000..494d975ba
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/scanner.py
@@ -0,0 +1,1448 @@
+
+# Scanner produces tokens of the following types:
+# STREAM-START
+# STREAM-END
+# DIRECTIVE(name, value)
+# DOCUMENT-START
+# DOCUMENT-END
+# BLOCK-SEQUENCE-START
+# BLOCK-MAPPING-START
+# BLOCK-END
+# FLOW-SEQUENCE-START
+# FLOW-MAPPING-START
+# FLOW-SEQUENCE-END
+# FLOW-MAPPING-END
+# BLOCK-ENTRY
+# FLOW-ENTRY
+# KEY
+# VALUE
+# ALIAS(value)
+# ANCHOR(value)
+# TAG(value)
+# SCALAR(value, plain, style)
+#
+# Read comments in the Scanner code for more details.
+#
+
+__all__ = ['Scanner', 'ScannerError']
+
+from .error import MarkedYAMLError
+from .tokens import *
+
+class ScannerError(MarkedYAMLError):
+ pass
+
+class SimpleKey:
+ # See below simple keys treatment.
+
+ def __init__(self, token_number, required, index, line, column, mark):
+ self.token_number = token_number
+ self.required = required
+ self.index = index
+ self.line = line
+ self.column = column
+ self.mark = mark
+
+class Scanner:
+
+ def __init__(self):
+ """Initialize the scanner."""
+ # It is assumed that Scanner and Reader will have a common descendant.
+ # Reader do the dirty work of checking for BOM and converting the
+ # input data to Unicode. It also adds NUL to the end.
+ #
+ # Reader supports the following methods
+ # self.peek(i=0) # peek the next i-th character
+ # self.prefix(l=1) # peek the next l characters
+ # self.forward(l=1) # read the next l characters and move the pointer.
+
+ # Had we reached the end of the stream?
+ self.done = False
+
+ # The number of unclosed '{' and '['. `flow_level == 0` means block
+ # context.
+ self.flow_level = 0
+
+ # List of processed tokens that are not yet emitted.
+ self.tokens = []
+
+ # Add the STREAM-START token.
+ self.fetch_stream_start()
+
+ # Number of tokens that were emitted through the `get_token` method.
+ self.tokens_taken = 0
+
+ # The current indentation level.
+ self.indent = -1
+
+ # Past indentation levels.
+ self.indents = []
+
+ # Variables related to simple keys treatment.
+
+ # A simple key is a key that is not denoted by the '?' indicator.
+ # Example of simple keys:
+ # ---
+ # block simple key: value
+ # ? not a simple key:
+ # : { flow simple key: value }
+ # We emit the KEY token before all keys, so when we find a potential
+ # simple key, we try to locate the corresponding ':' indicator.
+ # Simple keys should be limited to a single line and 1024 characters.
+
+ # Can a simple key start at the current position? A simple key may
+ # start:
+ # - at the beginning of the line, not counting indentation spaces
+ # (in block context),
+ # - after '{', '[', ',' (in the flow context),
+ # - after '?', ':', '-' (in the block context).
+ # In the block context, this flag also signifies if a block collection
+ # may start at the current position.
+ self.allow_simple_key = True
+
+ # Keep track of possible simple keys. This is a dictionary. The key
+ # is `flow_level`; there can be no more that one possible simple key
+ # for each level. The value is a SimpleKey record:
+ # (token_number, required, index, line, column, mark)
+ # A simple key may start with ALIAS, ANCHOR, TAG, SCALAR(flow),
+ # '[', or '{' tokens.
+ self.possible_simple_keys = {}
+
+ # Public methods.
+
+ def check_token(self, *choices):
+ # Check if the next token is one of the given types.
+ while self.need_more_tokens():
+ self.fetch_more_tokens()
+ if self.tokens:
+ if not choices:
+ return True
+ for choice in choices:
+ if isinstance(self.tokens[0], choice):
+ return True
+ return False
+
+ def peek_token(self):
+ # Return the next token, but do not delete if from the queue.
+ while self.need_more_tokens():
+ self.fetch_more_tokens()
+ if self.tokens:
+ return self.tokens[0]
+
+ def get_token(self):
+ # Return the next token.
+ while self.need_more_tokens():
+ self.fetch_more_tokens()
+ if self.tokens:
+ self.tokens_taken += 1
+ return self.tokens.pop(0)
+
+ # Private methods.
+
+ def need_more_tokens(self):
+ if self.done:
+ return False
+ if not self.tokens:
+ return True
+ # The current token may be a potential simple key, so we
+ # need to look further.
+ self.stale_possible_simple_keys()
+ if self.next_possible_simple_key() == self.tokens_taken:
+ return True
+
+ def fetch_more_tokens(self):
+
+ # Eat whitespaces and comments until we reach the next token.
+ self.scan_to_next_token()
+
+ # Remove obsolete possible simple keys.
+ self.stale_possible_simple_keys()
+
+ # Compare the current indentation and column. It may add some tokens
+ # and decrease the current indentation level.
+ self.unwind_indent(self.column)
+
+ # Peek the next character.
+ ch = self.peek()
+
+ # Is it the end of stream?
+ if ch == '\0':
+ return self.fetch_stream_end()
+
+ # Is it a directive?
+ if ch == '%' and self.check_directive():
+ return self.fetch_directive()
+
+ # Is it the document start?
+ if ch == '-' and self.check_document_start():
+ return self.fetch_document_start()
+
+ # Is it the document end?
+ if ch == '.' and self.check_document_end():
+ return self.fetch_document_end()
+
+ # TODO: support for BOM within a stream.
+ #if ch == '\uFEFF':
+ # return self.fetch_bom() <-- issue BOMToken
+
+ # Note: the order of the following checks is NOT significant.
+
+ # Is it the flow sequence start indicator?
+ if ch == '[':
+ return self.fetch_flow_sequence_start()
+
+ # Is it the flow mapping start indicator?
+ if ch == '{':
+ return self.fetch_flow_mapping_start()
+
+ # Is it the flow sequence end indicator?
+ if ch == ']':
+ return self.fetch_flow_sequence_end()
+
+ # Is it the flow mapping end indicator?
+ if ch == '}':
+ return self.fetch_flow_mapping_end()
+
+ # Is it the flow entry indicator?
+ if ch == ',':
+ return self.fetch_flow_entry()
+
+ # Is it the block entry indicator?
+ if ch == '-' and self.check_block_entry():
+ return self.fetch_block_entry()
+
+ # Is it the key indicator?
+ if ch == '?' and self.check_key():
+ return self.fetch_key()
+
+ # Is it the value indicator?
+ if ch == ':' and self.check_value():
+ return self.fetch_value()
+
+ # Is it an alias?
+ if ch == '*':
+ return self.fetch_alias()
+
+ # Is it an anchor?
+ if ch == '&':
+ return self.fetch_anchor()
+
+ # Is it a tag?
+ if ch == '!':
+ return self.fetch_tag()
+
+ # Is it a literal scalar?
+ if ch == '|' and not self.flow_level:
+ return self.fetch_literal()
+
+ # Is it a folded scalar?
+ if ch == '>' and not self.flow_level:
+ return self.fetch_folded()
+
+ # Is it a single quoted scalar?
+ if ch == '\'':
+ return self.fetch_single()
+
+ # Is it a double quoted scalar?
+ if ch == '\"':
+ return self.fetch_double()
+
+ # It must be a plain scalar then.
+ if self.check_plain():
+ return self.fetch_plain()
+
+ # No? It's an error. Let's produce a nice error message.
+ raise ScannerError("while scanning for the next token", None,
+ "found character %r that cannot start any token" % ch,
+ self.get_mark())
+
+ # Simple keys treatment.
+
+ def next_possible_simple_key(self):
+ # Return the number of the nearest possible simple key. Actually we
+ # don't need to loop through the whole dictionary. We may replace it
+ # with the following code:
+ # if not self.possible_simple_keys:
+ # return None
+ # return self.possible_simple_keys[
+ # min(self.possible_simple_keys.keys())].token_number
+ min_token_number = None
+ for level in self.possible_simple_keys:
+ key = self.possible_simple_keys[level]
+ if min_token_number is None or key.token_number < min_token_number:
+ min_token_number = key.token_number
+ return min_token_number
+
+ def stale_possible_simple_keys(self):
+ # Remove entries that are no longer possible simple keys. According to
+ # the YAML specification, simple keys
+ # - should be limited to a single line,
+ # - should be no longer than 1024 characters.
+ # Disabling this procedure will allow simple keys of any length and
+ # height (may cause problems if indentation is broken though).
+ for level in list(self.possible_simple_keys):
+ key = self.possible_simple_keys[level]
+ if key.line != self.line \
+ or self.index-key.index > 1024:
+ if key.required:
+ raise ScannerError("while scanning a simple key", key.mark,
+ "could not found expected ':'", self.get_mark())
+ del self.possible_simple_keys[level]
+
+ def save_possible_simple_key(self):
+ # The next token may start a simple key. We check if it's possible
+ # and save its position. This function is called for
+ # ALIAS, ANCHOR, TAG, SCALAR(flow), '[', and '{'.
+
+ # Check if a simple key is required at the current position.
+ required = not self.flow_level and self.indent == self.column
+
+ # A simple key is required only if it is the first token in the current
+ # line. Therefore it is always allowed.
+ assert self.allow_simple_key or not required
+
+ # The next token might be a simple key. Let's save it's number and
+ # position.
+ if self.allow_simple_key:
+ self.remove_possible_simple_key()
+ token_number = self.tokens_taken+len(self.tokens)
+ key = SimpleKey(token_number, required,
+ self.index, self.line, self.column, self.get_mark())
+ self.possible_simple_keys[self.flow_level] = key
+
+ def remove_possible_simple_key(self):
+ # Remove the saved possible key position at the current flow level.
+ if self.flow_level in self.possible_simple_keys:
+ key = self.possible_simple_keys[self.flow_level]
+
+ if key.required:
+ raise ScannerError("while scanning a simple key", key.mark,
+ "could not found expected ':'", self.get_mark())
+
+ del self.possible_simple_keys[self.flow_level]
+
+ # Indentation functions.
+
+ def unwind_indent(self, column):
+
+ ## In flow context, tokens should respect indentation.
+ ## Actually the condition should be `self.indent >= column` according to
+ ## the spec. But this condition will prohibit intuitively correct
+ ## constructions such as
+ ## key : {
+ ## }
+ #if self.flow_level and self.indent > column:
+ # raise ScannerError(None, None,
+ # "invalid intendation or unclosed '[' or '{'",
+ # self.get_mark())
+
+ # In the flow context, indentation is ignored. We make the scanner less
+ # restrictive then specification requires.
+ if self.flow_level:
+ return
+
+ # In block context, we may need to issue the BLOCK-END tokens.
+ while self.indent > column:
+ mark = self.get_mark()
+ self.indent = self.indents.pop()
+ self.tokens.append(BlockEndToken(mark, mark))
+
+ def add_indent(self, column):
+ # Check if we need to increase indentation.
+ if self.indent < column:
+ self.indents.append(self.indent)
+ self.indent = column
+ return True
+ return False
+
+ # Fetchers.
+
+ def fetch_stream_start(self):
+ # We always add STREAM-START as the first token and STREAM-END as the
+ # last token.
+
+ # Read the token.
+ mark = self.get_mark()
+
+ # Add STREAM-START.
+ self.tokens.append(StreamStartToken(mark, mark,
+ encoding=self.encoding))
+
+
+ def fetch_stream_end(self):
+
+ # Set the current intendation to -1.
+ self.unwind_indent(-1)
+
+ # Reset simple keys.
+ self.remove_possible_simple_key()
+ self.allow_simple_key = False
+ self.possible_simple_keys = {}
+
+ # Read the token.
+ mark = self.get_mark()
+
+ # Add STREAM-END.
+ self.tokens.append(StreamEndToken(mark, mark))
+
+ # The steam is finished.
+ self.done = True
+
+ def fetch_directive(self):
+
+ # Set the current intendation to -1.
+ self.unwind_indent(-1)
+
+ # Reset simple keys.
+ self.remove_possible_simple_key()
+ self.allow_simple_key = False
+
+ # Scan and add DIRECTIVE.
+ self.tokens.append(self.scan_directive())
+
+ def fetch_document_start(self):
+ self.fetch_document_indicator(DocumentStartToken)
+
+ def fetch_document_end(self):
+ self.fetch_document_indicator(DocumentEndToken)
+
+ def fetch_document_indicator(self, TokenClass):
+
+ # Set the current intendation to -1.
+ self.unwind_indent(-1)
+
+ # Reset simple keys. Note that there could not be a block collection
+ # after '---'.
+ self.remove_possible_simple_key()
+ self.allow_simple_key = False
+
+ # Add DOCUMENT-START or DOCUMENT-END.
+ start_mark = self.get_mark()
+ self.forward(3)
+ end_mark = self.get_mark()
+ self.tokens.append(TokenClass(start_mark, end_mark))
+
+ def fetch_flow_sequence_start(self):
+ self.fetch_flow_collection_start(FlowSequenceStartToken)
+
+ def fetch_flow_mapping_start(self):
+ self.fetch_flow_collection_start(FlowMappingStartToken)
+
+ def fetch_flow_collection_start(self, TokenClass):
+
+ # '[' and '{' may start a simple key.
+ self.save_possible_simple_key()
+
+ # Increase the flow level.
+ self.flow_level += 1
+
+ # Simple keys are allowed after '[' and '{'.
+ self.allow_simple_key = True
+
+ # Add FLOW-SEQUENCE-START or FLOW-MAPPING-START.
+ start_mark = self.get_mark()
+ self.forward()
+ end_mark = self.get_mark()
+ self.tokens.append(TokenClass(start_mark, end_mark))
+
+ def fetch_flow_sequence_end(self):
+ self.fetch_flow_collection_end(FlowSequenceEndToken)
+
+ def fetch_flow_mapping_end(self):
+ self.fetch_flow_collection_end(FlowMappingEndToken)
+
+ def fetch_flow_collection_end(self, TokenClass):
+
+ # Reset possible simple key on the current level.
+ self.remove_possible_simple_key()
+
+ # Decrease the flow level.
+ self.flow_level -= 1
+
+ # No simple keys after ']' or '}'.
+ self.allow_simple_key = False
+
+ # Add FLOW-SEQUENCE-END or FLOW-MAPPING-END.
+ start_mark = self.get_mark()
+ self.forward()
+ end_mark = self.get_mark()
+ self.tokens.append(TokenClass(start_mark, end_mark))
+
+ def fetch_flow_entry(self):
+
+ # Simple keys are allowed after ','.
+ self.allow_simple_key = True
+
+ # Reset possible simple key on the current level.
+ self.remove_possible_simple_key()
+
+ # Add FLOW-ENTRY.
+ start_mark = self.get_mark()
+ self.forward()
+ end_mark = self.get_mark()
+ self.tokens.append(FlowEntryToken(start_mark, end_mark))
+
+ def fetch_block_entry(self):
+
+ # Block context needs additional checks.
+ if not self.flow_level:
+
+ # Are we allowed to start a new entry?
+ if not self.allow_simple_key:
+ raise ScannerError(None, None,
+ "sequence entries are not allowed here",
+ self.get_mark())
+
+ # We may need to add BLOCK-SEQUENCE-START.
+ if self.add_indent(self.column):
+ mark = self.get_mark()
+ self.tokens.append(BlockSequenceStartToken(mark, mark))
+
+ # It's an error for the block entry to occur in the flow context,
+ # but we let the parser detect this.
+ else:
+ pass
+
+ # Simple keys are allowed after '-'.
+ self.allow_simple_key = True
+
+ # Reset possible simple key on the current level.
+ self.remove_possible_simple_key()
+
+ # Add BLOCK-ENTRY.
+ start_mark = self.get_mark()
+ self.forward()
+ end_mark = self.get_mark()
+ self.tokens.append(BlockEntryToken(start_mark, end_mark))
+
+ def fetch_key(self):
+
+ # Block context needs additional checks.
+ if not self.flow_level:
+
+ # Are we allowed to start a key (not nessesary a simple)?
+ if not self.allow_simple_key:
+ raise ScannerError(None, None,
+ "mapping keys are not allowed here",
+ self.get_mark())
+
+ # We may need to add BLOCK-MAPPING-START.
+ if self.add_indent(self.column):
+ mark = self.get_mark()
+ self.tokens.append(BlockMappingStartToken(mark, mark))
+
+ # Simple keys are allowed after '?' in the block context.
+ self.allow_simple_key = not self.flow_level
+
+ # Reset possible simple key on the current level.
+ self.remove_possible_simple_key()
+
+ # Add KEY.
+ start_mark = self.get_mark()
+ self.forward()
+ end_mark = self.get_mark()
+ self.tokens.append(KeyToken(start_mark, end_mark))
+
+ def fetch_value(self):
+
+ # Do we determine a simple key?
+ if self.flow_level in self.possible_simple_keys:
+
+ # Add KEY.
+ key = self.possible_simple_keys[self.flow_level]
+ del self.possible_simple_keys[self.flow_level]
+ self.tokens.insert(key.token_number-self.tokens_taken,
+ KeyToken(key.mark, key.mark))
+
+ # If this key starts a new block mapping, we need to add
+ # BLOCK-MAPPING-START.
+ if not self.flow_level:
+ if self.add_indent(key.column):
+ self.tokens.insert(key.token_number-self.tokens_taken,
+ BlockMappingStartToken(key.mark, key.mark))
+
+ # There cannot be two simple keys one after another.
+ self.allow_simple_key = False
+
+ # It must be a part of a complex key.
+ else:
+
+ # Block context needs additional checks.
+ # (Do we really need them? They will be catched by the parser
+ # anyway.)
+ if not self.flow_level:
+
+ # We are allowed to start a complex value if and only if
+ # we can start a simple key.
+ if not self.allow_simple_key:
+ raise ScannerError(None, None,
+ "mapping values are not allowed here",
+ self.get_mark())
+
+ # If this value starts a new block mapping, we need to add
+ # BLOCK-MAPPING-START. It will be detected as an error later by
+ # the parser.
+ if not self.flow_level:
+ if self.add_indent(self.column):
+ mark = self.get_mark()
+ self.tokens.append(BlockMappingStartToken(mark, mark))
+
+ # Simple keys are allowed after ':' in the block context.
+ self.allow_simple_key = not self.flow_level
+
+ # Reset possible simple key on the current level.
+ self.remove_possible_simple_key()
+
+ # Add VALUE.
+ start_mark = self.get_mark()
+ self.forward()
+ end_mark = self.get_mark()
+ self.tokens.append(ValueToken(start_mark, end_mark))
+
+ def fetch_alias(self):
+
+ # ALIAS could be a simple key.
+ self.save_possible_simple_key()
+
+ # No simple keys after ALIAS.
+ self.allow_simple_key = False
+
+ # Scan and add ALIAS.
+ self.tokens.append(self.scan_anchor(AliasToken))
+
+ def fetch_anchor(self):
+
+ # ANCHOR could start a simple key.
+ self.save_possible_simple_key()
+
+ # No simple keys after ANCHOR.
+ self.allow_simple_key = False
+
+ # Scan and add ANCHOR.
+ self.tokens.append(self.scan_anchor(AnchorToken))
+
+ def fetch_tag(self):
+
+ # TAG could start a simple key.
+ self.save_possible_simple_key()
+
+ # No simple keys after TAG.
+ self.allow_simple_key = False
+
+ # Scan and add TAG.
+ self.tokens.append(self.scan_tag())
+
+ def fetch_literal(self):
+ self.fetch_block_scalar(style='|')
+
+ def fetch_folded(self):
+ self.fetch_block_scalar(style='>')
+
+ def fetch_block_scalar(self, style):
+
+ # A simple key may follow a block scalar.
+ self.allow_simple_key = True
+
+ # Reset possible simple key on the current level.
+ self.remove_possible_simple_key()
+
+ # Scan and add SCALAR.
+ self.tokens.append(self.scan_block_scalar(style))
+
+ def fetch_single(self):
+ self.fetch_flow_scalar(style='\'')
+
+ def fetch_double(self):
+ self.fetch_flow_scalar(style='"')
+
+ def fetch_flow_scalar(self, style):
+
+ # A flow scalar could be a simple key.
+ self.save_possible_simple_key()
+
+ # No simple keys after flow scalars.
+ self.allow_simple_key = False
+
+ # Scan and add SCALAR.
+ self.tokens.append(self.scan_flow_scalar(style))
+
+ def fetch_plain(self):
+
+ # A plain scalar could be a simple key.
+ self.save_possible_simple_key()
+
+ # No simple keys after plain scalars. But note that `scan_plain` will
+ # change this flag if the scan is finished at the beginning of the
+ # line.
+ self.allow_simple_key = False
+
+ # Scan and add SCALAR. May change `allow_simple_key`.
+ self.tokens.append(self.scan_plain())
+
+ # Checkers.
+
+ def check_directive(self):
+
+ # DIRECTIVE: ^ '%' ...
+ # The '%' indicator is already checked.
+ if self.column == 0:
+ return True
+
+ def check_document_start(self):
+
+ # DOCUMENT-START: ^ '---' (' '|'\n')
+ if self.column == 0:
+ if self.prefix(3) == '---' \
+ and self.peek(3) in '\0 \t\r\n\x85\u2028\u2029':
+ return True
+
+ def check_document_end(self):
+
+ # DOCUMENT-END: ^ '...' (' '|'\n')
+ if self.column == 0:
+ if self.prefix(3) == '...' \
+ and self.peek(3) in '\0 \t\r\n\x85\u2028\u2029':
+ return True
+
+ def check_block_entry(self):
+
+ # BLOCK-ENTRY: '-' (' '|'\n')
+ return self.peek(1) in '\0 \t\r\n\x85\u2028\u2029'
+
+ def check_key(self):
+
+ # KEY(flow context): '?'
+ if self.flow_level:
+ return True
+
+ # KEY(block context): '?' (' '|'\n')
+ else:
+ return self.peek(1) in '\0 \t\r\n\x85\u2028\u2029'
+
+ def check_value(self):
+
+ # VALUE(flow context): ':'
+ if self.flow_level:
+ return True
+
+ # VALUE(block context): ':' (' '|'\n')
+ else:
+ return self.peek(1) in '\0 \t\r\n\x85\u2028\u2029'
+
+ def check_plain(self):
+
+ # A plain scalar may start with any non-space character except:
+ # '-', '?', ':', ',', '[', ']', '{', '}',
+ # '#', '&', '*', '!', '|', '>', '\'', '\"',
+ # '%', '@', '`'.
+ #
+ # It may also start with
+ # '-', '?', ':'
+ # if it is followed by a non-space character.
+ #
+ # Note that we limit the last rule to the block context (except the
+ # '-' character) because we want the flow context to be space
+ # independent.
+ ch = self.peek()
+ return ch not in '\0 \t\r\n\x85\u2028\u2029-?:,[]{}#&*!|>\'\"%@`' \
+ or (self.peek(1) not in '\0 \t\r\n\x85\u2028\u2029'
+ and (ch == '-' or (not self.flow_level and ch in '?:')))
+
+ # Scanners.
+
+ def scan_to_next_token(self):
+ # We ignore spaces, line breaks and comments.
+ # If we find a line break in the block context, we set the flag
+ # `allow_simple_key` on.
+ # The byte order mark is stripped if it's the first character in the
+ # stream. We do not yet support BOM inside the stream as the
+ # specification requires. Any such mark will be considered as a part
+ # of the document.
+ #
+ # TODO: We need to make tab handling rules more sane. A good rule is
+ # Tabs cannot precede tokens
+ # BLOCK-SEQUENCE-START, BLOCK-MAPPING-START, BLOCK-END,
+ # KEY(block), VALUE(block), BLOCK-ENTRY
+ # So the checking code is
+ # if <TAB>:
+ # self.allow_simple_keys = False
+ # We also need to add the check for `allow_simple_keys == True` to
+ # `unwind_indent` before issuing BLOCK-END.
+ # Scanners for block, flow, and plain scalars need to be modified.
+
+ if self.index == 0 and self.peek() == '\uFEFF':
+ self.forward()
+ found = False
+ while not found:
+ while self.peek() == ' ':
+ self.forward()
+ if self.peek() == '#':
+ while self.peek() not in '\0\r\n\x85\u2028\u2029':
+ self.forward()
+ if self.scan_line_break():
+ if not self.flow_level:
+ self.allow_simple_key = True
+ else:
+ found = True
+
+ def scan_directive(self):
+ # See the specification for details.
+ start_mark = self.get_mark()
+ self.forward()
+ name = self.scan_directive_name(start_mark)
+ value = None
+ if name == 'YAML':
+ value = self.scan_yaml_directive_value(start_mark)
+ end_mark = self.get_mark()
+ elif name == 'TAG':
+ value = self.scan_tag_directive_value(start_mark)
+ end_mark = self.get_mark()
+ else:
+ end_mark = self.get_mark()
+ while self.peek() not in '\0\r\n\x85\u2028\u2029':
+ self.forward()
+ self.scan_directive_ignored_line(start_mark)
+ return DirectiveToken(name, value, start_mark, end_mark)
+
+ def scan_directive_name(self, start_mark):
+ # See the specification for details.
+ length = 0
+ ch = self.peek(length)
+ while '0' <= ch <= '9' or 'A' <= ch <= 'Z' or 'a' <= ch <= 'z' \
+ or ch in '-_':
+ length += 1
+ ch = self.peek(length)
+ if not length:
+ raise ScannerError("while scanning a directive", start_mark,
+ "expected alphabetic or numeric character, but found %r"
+ % ch, self.get_mark())
+ value = self.prefix(length)
+ self.forward(length)
+ ch = self.peek()
+ if ch not in '\0 \r\n\x85\u2028\u2029':
+ raise ScannerError("while scanning a directive", start_mark,
+ "expected alphabetic or numeric character, but found %r"
+ % ch, self.get_mark())
+ return value
+
+ def scan_yaml_directive_value(self, start_mark):
+ # See the specification for details.
+ while self.peek() == ' ':
+ self.forward()
+ major = self.scan_yaml_directive_number(start_mark)
+ if self.peek() != '.':
+ raise ScannerError("while scanning a directive", start_mark,
+ "expected a digit or '.', but found %r" % self.peek(),
+ self.get_mark())
+ self.forward()
+ minor = self.scan_yaml_directive_number(start_mark)
+ if self.peek() not in '\0 \r\n\x85\u2028\u2029':
+ raise ScannerError("while scanning a directive", start_mark,
+ "expected a digit or ' ', but found %r" % self.peek(),
+ self.get_mark())
+ return (major, minor)
+
+ def scan_yaml_directive_number(self, start_mark):
+ # See the specification for details.
+ ch = self.peek()
+ if not ('0' <= ch <= '9'):
+ raise ScannerError("while scanning a directive", start_mark,
+ "expected a digit, but found %r" % ch, self.get_mark())
+ length = 0
+ while '0' <= self.peek(length) <= '9':
+ length += 1
+ value = int(self.prefix(length))
+ self.forward(length)
+ return value
+
+ def scan_tag_directive_value(self, start_mark):
+ # See the specification for details.
+ while self.peek() == ' ':
+ self.forward()
+ handle = self.scan_tag_directive_handle(start_mark)
+ while self.peek() == ' ':
+ self.forward()
+ prefix = self.scan_tag_directive_prefix(start_mark)
+ return (handle, prefix)
+
+ def scan_tag_directive_handle(self, start_mark):
+ # See the specification for details.
+ value = self.scan_tag_handle('directive', start_mark)
+ ch = self.peek()
+ if ch != ' ':
+ raise ScannerError("while scanning a directive", start_mark,
+ "expected ' ', but found %r" % ch, self.get_mark())
+ return value
+
+ def scan_tag_directive_prefix(self, start_mark):
+ # See the specification for details.
+ value = self.scan_tag_uri('directive', start_mark)
+ ch = self.peek()
+ if ch not in '\0 \r\n\x85\u2028\u2029':
+ raise ScannerError("while scanning a directive", start_mark,
+ "expected ' ', but found %r" % ch, self.get_mark())
+ return value
+
+ def scan_directive_ignored_line(self, start_mark):
+ # See the specification for details.
+ while self.peek() == ' ':
+ self.forward()
+ if self.peek() == '#':
+ while self.peek() not in '\0\r\n\x85\u2028\u2029':
+ self.forward()
+ ch = self.peek()
+ if ch not in '\0\r\n\x85\u2028\u2029':
+ raise ScannerError("while scanning a directive", start_mark,
+ "expected a comment or a line break, but found %r"
+ % ch, self.get_mark())
+ self.scan_line_break()
+
+ def scan_anchor(self, TokenClass):
+ # The specification does not restrict characters for anchors and
+ # aliases. This may lead to problems, for instance, the document:
+ # [ *alias, value ]
+ # can be interpteted in two ways, as
+ # [ "value" ]
+ # and
+ # [ *alias , "value" ]
+ # Therefore we restrict aliases to numbers and ASCII letters.
+ start_mark = self.get_mark()
+ indicator = self.peek()
+ if indicator == '*':
+ name = 'alias'
+ else:
+ name = 'anchor'
+ self.forward()
+ length = 0
+ ch = self.peek(length)
+ while '0' <= ch <= '9' or 'A' <= ch <= 'Z' or 'a' <= ch <= 'z' \
+ or ch in '-_':
+ length += 1
+ ch = self.peek(length)
+ if not length:
+ raise ScannerError("while scanning an %s" % name, start_mark,
+ "expected alphabetic or numeric character, but found %r"
+ % ch, self.get_mark())
+ value = self.prefix(length)
+ self.forward(length)
+ ch = self.peek()
+ if ch not in '\0 \t\r\n\x85\u2028\u2029?:,]}%@`':
+ raise ScannerError("while scanning an %s" % name, start_mark,
+ "expected alphabetic or numeric character, but found %r"
+ % ch, self.get_mark())
+ end_mark = self.get_mark()
+ return TokenClass(value, start_mark, end_mark)
+
+ def scan_tag(self):
+ # See the specification for details.
+ start_mark = self.get_mark()
+ ch = self.peek(1)
+ if ch == '<':
+ handle = None
+ self.forward(2)
+ suffix = self.scan_tag_uri('tag', start_mark)
+ if self.peek() != '>':
+ raise ScannerError("while parsing a tag", start_mark,
+ "expected '>', but found %r" % self.peek(),
+ self.get_mark())
+ self.forward()
+ elif ch in '\0 \t\r\n\x85\u2028\u2029':
+ handle = None
+ suffix = '!'
+ self.forward()
+ else:
+ length = 1
+ use_handle = False
+ while ch not in '\0 \r\n\x85\u2028\u2029':
+ if ch == '!':
+ use_handle = True
+ break
+ length += 1
+ ch = self.peek(length)
+ handle = '!'
+ if use_handle:
+ handle = self.scan_tag_handle('tag', start_mark)
+ else:
+ handle = '!'
+ self.forward()
+ suffix = self.scan_tag_uri('tag', start_mark)
+ ch = self.peek()
+ if ch not in '\0 \r\n\x85\u2028\u2029':
+ raise ScannerError("while scanning a tag", start_mark,
+ "expected ' ', but found %r" % ch, self.get_mark())
+ value = (handle, suffix)
+ end_mark = self.get_mark()
+ return TagToken(value, start_mark, end_mark)
+
+ def scan_block_scalar(self, style):
+ # See the specification for details.
+
+ if style == '>':
+ folded = True
+ else:
+ folded = False
+
+ chunks = []
+ start_mark = self.get_mark()
+
+ # Scan the header.
+ self.forward()
+ chomping, increment = self.scan_block_scalar_indicators(start_mark)
+ self.scan_block_scalar_ignored_line(start_mark)
+
+ # Determine the indentation level and go to the first non-empty line.
+ min_indent = self.indent+1
+ if min_indent < 1:
+ min_indent = 1
+ if increment is None:
+ breaks, max_indent, end_mark = self.scan_block_scalar_indentation()
+ indent = max(min_indent, max_indent)
+ else:
+ indent = min_indent+increment-1
+ breaks, end_mark = self.scan_block_scalar_breaks(indent)
+ line_break = ''
+
+ # Scan the inner part of the block scalar.
+ while self.column == indent and self.peek() != '\0':
+ chunks.extend(breaks)
+ leading_non_space = self.peek() not in ' \t'
+ length = 0
+ while self.peek(length) not in '\0\r\n\x85\u2028\u2029':
+ length += 1
+ chunks.append(self.prefix(length))
+ self.forward(length)
+ line_break = self.scan_line_break()
+ breaks, end_mark = self.scan_block_scalar_breaks(indent)
+ if self.column == indent and self.peek() != '\0':
+
+ # Unfortunately, folding rules are ambiguous.
+ #
+ # This is the folding according to the specification:
+
+ if folded and line_break == '\n' \
+ and leading_non_space and self.peek() not in ' \t':
+ if not breaks:
+ chunks.append(' ')
+ else:
+ chunks.append(line_break)
+
+ # This is Clark Evans's interpretation (also in the spec
+ # examples):
+ #
+ #if folded and line_break == '\n':
+ # if not breaks:
+ # if self.peek() not in ' \t':
+ # chunks.append(' ')
+ # else:
+ # chunks.append(line_break)
+ #else:
+ # chunks.append(line_break)
+ else:
+ break
+
+ # Chomp the tail.
+ if chomping is not False:
+ chunks.append(line_break)
+ if chomping is True:
+ chunks.extend(breaks)
+
+ # We are done.
+ return ScalarToken(''.join(chunks), False, start_mark, end_mark,
+ style)
+
+ def scan_block_scalar_indicators(self, start_mark):
+ # See the specification for details.
+ chomping = None
+ increment = None
+ ch = self.peek()
+ if ch in '+-':
+ if ch == '+':
+ chomping = True
+ else:
+ chomping = False
+ self.forward()
+ ch = self.peek()
+ if ch in '0123456789':
+ increment = int(ch)
+ if increment == 0:
+ raise ScannerError("while scanning a block scalar", start_mark,
+ "expected indentation indicator in the range 1-9, but found 0",
+ self.get_mark())
+ self.forward()
+ elif ch in '0123456789':
+ increment = int(ch)
+ if increment == 0:
+ raise ScannerError("while scanning a block scalar", start_mark,
+ "expected indentation indicator in the range 1-9, but found 0",
+ self.get_mark())
+ self.forward()
+ ch = self.peek()
+ if ch in '+-':
+ if ch == '+':
+ chomping = True
+ else:
+ chomping = False
+ self.forward()
+ ch = self.peek()
+ if ch not in '\0 \r\n\x85\u2028\u2029':
+ raise ScannerError("while scanning a block scalar", start_mark,
+ "expected chomping or indentation indicators, but found %r"
+ % ch, self.get_mark())
+ return chomping, increment
+
+ def scan_block_scalar_ignored_line(self, start_mark):
+ # See the specification for details.
+ while self.peek() == ' ':
+ self.forward()
+ if self.peek() == '#':
+ while self.peek() not in '\0\r\n\x85\u2028\u2029':
+ self.forward()
+ ch = self.peek()
+ if ch not in '\0\r\n\x85\u2028\u2029':
+ raise ScannerError("while scanning a block scalar", start_mark,
+ "expected a comment or a line break, but found %r" % ch,
+ self.get_mark())
+ self.scan_line_break()
+
+ def scan_block_scalar_indentation(self):
+ # See the specification for details.
+ chunks = []
+ max_indent = 0
+ end_mark = self.get_mark()
+ while self.peek() in ' \r\n\x85\u2028\u2029':
+ if self.peek() != ' ':
+ chunks.append(self.scan_line_break())
+ end_mark = self.get_mark()
+ else:
+ self.forward()
+ if self.column > max_indent:
+ max_indent = self.column
+ return chunks, max_indent, end_mark
+
+ def scan_block_scalar_breaks(self, indent):
+ # See the specification for details.
+ chunks = []
+ end_mark = self.get_mark()
+ while self.column < indent and self.peek() == ' ':
+ self.forward()
+ while self.peek() in '\r\n\x85\u2028\u2029':
+ chunks.append(self.scan_line_break())
+ end_mark = self.get_mark()
+ while self.column < indent and self.peek() == ' ':
+ self.forward()
+ return chunks, end_mark
+
+ def scan_flow_scalar(self, style):
+ # See the specification for details.
+ # Note that we loose indentation rules for quoted scalars. Quoted
+ # scalars don't need to adhere indentation because " and ' clearly
+ # mark the beginning and the end of them. Therefore we are less
+ # restrictive then the specification requires. We only need to check
+ # that document separators are not included in scalars.
+ if style == '"':
+ double = True
+ else:
+ double = False
+ chunks = []
+ start_mark = self.get_mark()
+ quote = self.peek()
+ self.forward()
+ chunks.extend(self.scan_flow_scalar_non_spaces(double, start_mark))
+ while self.peek() != quote:
+ chunks.extend(self.scan_flow_scalar_spaces(double, start_mark))
+ chunks.extend(self.scan_flow_scalar_non_spaces(double, start_mark))
+ self.forward()
+ end_mark = self.get_mark()
+ return ScalarToken(''.join(chunks), False, start_mark, end_mark,
+ style)
+
+ ESCAPE_REPLACEMENTS = {
+ '0': '\0',
+ 'a': '\x07',
+ 'b': '\x08',
+ 't': '\x09',
+ '\t': '\x09',
+ 'n': '\x0A',
+ 'v': '\x0B',
+ 'f': '\x0C',
+ 'r': '\x0D',
+ 'e': '\x1B',
+ ' ': '\x20',
+ '\"': '\"',
+ '\\': '\\',
+ 'N': '\x85',
+ '_': '\xA0',
+ 'L': '\u2028',
+ 'P': '\u2029',
+ }
+
+ ESCAPE_CODES = {
+ 'x': 2,
+ 'u': 4,
+ 'U': 8,
+ }
+
+ def scan_flow_scalar_non_spaces(self, double, start_mark):
+ # See the specification for details.
+ chunks = []
+ while True:
+ length = 0
+ while self.peek(length) not in '\'\"\\\0 \t\r\n\x85\u2028\u2029':
+ length += 1
+ if length:
+ chunks.append(self.prefix(length))
+ self.forward(length)
+ ch = self.peek()
+ if not double and ch == '\'' and self.peek(1) == '\'':
+ chunks.append('\'')
+ self.forward(2)
+ elif (double and ch == '\'') or (not double and ch in '\"\\'):
+ chunks.append(ch)
+ self.forward()
+ elif double and ch == '\\':
+ self.forward()
+ ch = self.peek()
+ if ch in self.ESCAPE_REPLACEMENTS:
+ chunks.append(self.ESCAPE_REPLACEMENTS[ch])
+ self.forward()
+ elif ch in self.ESCAPE_CODES:
+ length = self.ESCAPE_CODES[ch]
+ self.forward()
+ for k in range(length):
+ if self.peek(k) not in '0123456789ABCDEFabcdef':
+ raise ScannerError("while scanning a double-quoted scalar", start_mark,
+ "expected escape sequence of %d hexdecimal numbers, but found %r" %
+ (length, self.peek(k)), self.get_mark())
+ code = int(self.prefix(length), 16)
+ chunks.append(chr(code))
+ self.forward(length)
+ elif ch in '\r\n\x85\u2028\u2029':
+ self.scan_line_break()
+ chunks.extend(self.scan_flow_scalar_breaks(double, start_mark))
+ else:
+ raise ScannerError("while scanning a double-quoted scalar", start_mark,
+ "found unknown escape character %r" % ch, self.get_mark())
+ else:
+ return chunks
+
+ def scan_flow_scalar_spaces(self, double, start_mark):
+ # See the specification for details.
+ chunks = []
+ length = 0
+ while self.peek(length) in ' \t':
+ length += 1
+ whitespaces = self.prefix(length)
+ self.forward(length)
+ ch = self.peek()
+ if ch == '\0':
+ raise ScannerError("while scanning a quoted scalar", start_mark,
+ "found unexpected end of stream", self.get_mark())
+ elif ch in '\r\n\x85\u2028\u2029':
+ line_break = self.scan_line_break()
+ breaks = self.scan_flow_scalar_breaks(double, start_mark)
+ if line_break != '\n':
+ chunks.append(line_break)
+ elif not breaks:
+ chunks.append(' ')
+ chunks.extend(breaks)
+ else:
+ chunks.append(whitespaces)
+ return chunks
+
+ def scan_flow_scalar_breaks(self, double, start_mark):
+ # See the specification for details.
+ chunks = []
+ while True:
+ # Instead of checking indentation, we check for document
+ # separators.
+ prefix = self.prefix(3)
+ if (prefix == '---' or prefix == '...') \
+ and self.peek(3) in '\0 \t\r\n\x85\u2028\u2029':
+ raise ScannerError("while scanning a quoted scalar", start_mark,
+ "found unexpected document separator", self.get_mark())
+ while self.peek() in ' \t':
+ self.forward()
+ if self.peek() in '\r\n\x85\u2028\u2029':
+ chunks.append(self.scan_line_break())
+ else:
+ return chunks
+
+ def scan_plain(self):
+ # See the specification for details.
+ # We add an additional restriction for the flow context:
+ # plain scalars in the flow context cannot contain ',', ':' and '?'.
+ # We also keep track of the `allow_simple_key` flag here.
+ # Indentation rules are loosed for the flow context.
+ chunks = []
+ start_mark = self.get_mark()
+ end_mark = start_mark
+ indent = self.indent+1
+ # We allow zero indentation for scalars, but then we need to check for
+ # document separators at the beginning of the line.
+ #if indent == 0:
+ # indent = 1
+ spaces = []
+ while True:
+ length = 0
+ if self.peek() == '#':
+ break
+ while True:
+ ch = self.peek(length)
+ if ch in '\0 \t\r\n\x85\u2028\u2029' \
+ or (not self.flow_level and ch == ':' and
+ self.peek(length+1) in '\0 \t\r\n\x85\u2028\u2029') \
+ or (self.flow_level and ch in ',:?[]{}'):
+ break
+ length += 1
+ # It's not clear what we should do with ':' in the flow context.
+ if (self.flow_level and ch == ':'
+ and self.peek(length+1) not in '\0 \t\r\n\x85\u2028\u2029,[]{}'):
+ self.forward(length)
+ raise ScannerError("while scanning a plain scalar", start_mark,
+ "found unexpected ':'", self.get_mark(),
+ "Please check http://pyyaml.org/wiki/YAMLColonInFlowContext for details.")
+ if length == 0:
+ break
+ self.allow_simple_key = False
+ chunks.extend(spaces)
+ chunks.append(self.prefix(length))
+ self.forward(length)
+ end_mark = self.get_mark()
+ spaces = self.scan_plain_spaces(indent, start_mark)
+ if not spaces or self.peek() == '#' \
+ or (not self.flow_level and self.column < indent):
+ break
+ return ScalarToken(''.join(chunks), True, start_mark, end_mark)
+
+ def scan_plain_spaces(self, indent, start_mark):
+ # See the specification for details.
+ # The specification is really confusing about tabs in plain scalars.
+ # We just forbid them completely. Do not use tabs in YAML!
+ chunks = []
+ length = 0
+ while self.peek(length) in ' ':
+ length += 1
+ whitespaces = self.prefix(length)
+ self.forward(length)
+ ch = self.peek()
+ if ch in '\r\n\x85\u2028\u2029':
+ line_break = self.scan_line_break()
+ self.allow_simple_key = True
+ prefix = self.prefix(3)
+ if (prefix == '---' or prefix == '...') \
+ and self.peek(3) in '\0 \t\r\n\x85\u2028\u2029':
+ return
+ breaks = []
+ while self.peek() in ' \r\n\x85\u2028\u2029':
+ if self.peek() == ' ':
+ self.forward()
+ else:
+ breaks.append(self.scan_line_break())
+ prefix = self.prefix(3)
+ if (prefix == '---' or prefix == '...') \
+ and self.peek(3) in '\0 \t\r\n\x85\u2028\u2029':
+ return
+ if line_break != '\n':
+ chunks.append(line_break)
+ elif not breaks:
+ chunks.append(' ')
+ chunks.extend(breaks)
+ elif whitespaces:
+ chunks.append(whitespaces)
+ return chunks
+
+ def scan_tag_handle(self, name, start_mark):
+ # See the specification for details.
+ # For some strange reasons, the specification does not allow '_' in
+ # tag handles. I have allowed it anyway.
+ ch = self.peek()
+ if ch != '!':
+ raise ScannerError("while scanning a %s" % name, start_mark,
+ "expected '!', but found %r" % ch, self.get_mark())
+ length = 1
+ ch = self.peek(length)
+ if ch != ' ':
+ while '0' <= ch <= '9' or 'A' <= ch <= 'Z' or 'a' <= ch <= 'z' \
+ or ch in '-_':
+ length += 1
+ ch = self.peek(length)
+ if ch != '!':
+ self.forward(length)
+ raise ScannerError("while scanning a %s" % name, start_mark,
+ "expected '!', but found %r" % ch, self.get_mark())
+ length += 1
+ value = self.prefix(length)
+ self.forward(length)
+ return value
+
+ def scan_tag_uri(self, name, start_mark):
+ # See the specification for details.
+ # Note: we do not check if URI is well-formed.
+ chunks = []
+ length = 0
+ ch = self.peek(length)
+ while '0' <= ch <= '9' or 'A' <= ch <= 'Z' or 'a' <= ch <= 'z' \
+ or ch in '-;/?:@&=+$,_.!~*\'()[]%':
+ if ch == '%':
+ chunks.append(self.prefix(length))
+ self.forward(length)
+ length = 0
+ chunks.append(self.scan_uri_escapes(name, start_mark))
+ else:
+ length += 1
+ ch = self.peek(length)
+ if length:
+ chunks.append(self.prefix(length))
+ self.forward(length)
+ length = 0
+ if not chunks:
+ raise ScannerError("while parsing a %s" % name, start_mark,
+ "expected URI, but found %r" % ch, self.get_mark())
+ return ''.join(chunks)
+
+ def scan_uri_escapes(self, name, start_mark):
+ # See the specification for details.
+ codes = []
+ mark = self.get_mark()
+ while self.peek() == '%':
+ self.forward()
+ for k in range(2):
+ if self.peek(k) not in '0123456789ABCDEFabcdef':
+ raise ScannerError("while scanning a %s" % name, start_mark,
+ "expected URI escape sequence of 2 hexdecimal numbers, but found %r"
+ % self.peek(k), self.get_mark())
+ codes.append(int(self.prefix(2), 16))
+ self.forward(2)
+ try:
+ value = bytes(codes).decode('utf-8')
+ except UnicodeDecodeError as exc:
+ raise ScannerError("while scanning a %s" % name, start_mark, str(exc), mark)
+ return value
+
+ def scan_line_break(self):
+ # Transforms:
+ # '\r\n' : '\n'
+ # '\r' : '\n'
+ # '\n' : '\n'
+ # '\x85' : '\n'
+ # '\u2028' : '\u2028'
+ # '\u2029 : '\u2029'
+ # default : ''
+ ch = self.peek()
+ if ch in '\r\n\x85':
+ if self.prefix(2) == '\r\n':
+ self.forward(2)
+ else:
+ self.forward()
+ return '\n'
+ elif ch in '\u2028\u2029':
+ self.forward()
+ return ch
+ return ''
+
+#try:
+# import psyco
+# psyco.bind(Scanner)
+#except ImportError:
+# pass
+
diff --git a/python.d/python_modules/pyyaml3/serializer.py b/python.d/python_modules/pyyaml3/serializer.py
new file mode 100644
index 000000000..fe911e67a
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/serializer.py
@@ -0,0 +1,111 @@
+
+__all__ = ['Serializer', 'SerializerError']
+
+from .error import YAMLError
+from .events import *
+from .nodes import *
+
+class SerializerError(YAMLError):
+ pass
+
+class Serializer:
+
+ ANCHOR_TEMPLATE = 'id%03d'
+
+ def __init__(self, encoding=None,
+ explicit_start=None, explicit_end=None, version=None, tags=None):
+ self.use_encoding = encoding
+ self.use_explicit_start = explicit_start
+ self.use_explicit_end = explicit_end
+ self.use_version = version
+ self.use_tags = tags
+ self.serialized_nodes = {}
+ self.anchors = {}
+ self.last_anchor_id = 0
+ self.closed = None
+
+ def open(self):
+ if self.closed is None:
+ self.emit(StreamStartEvent(encoding=self.use_encoding))
+ self.closed = False
+ elif self.closed:
+ raise SerializerError("serializer is closed")
+ else:
+ raise SerializerError("serializer is already opened")
+
+ def close(self):
+ if self.closed is None:
+ raise SerializerError("serializer is not opened")
+ elif not self.closed:
+ self.emit(StreamEndEvent())
+ self.closed = True
+
+ #def __del__(self):
+ # self.close()
+
+ def serialize(self, node):
+ if self.closed is None:
+ raise SerializerError("serializer is not opened")
+ elif self.closed:
+ raise SerializerError("serializer is closed")
+ self.emit(DocumentStartEvent(explicit=self.use_explicit_start,
+ version=self.use_version, tags=self.use_tags))
+ self.anchor_node(node)
+ self.serialize_node(node, None, None)
+ self.emit(DocumentEndEvent(explicit=self.use_explicit_end))
+ self.serialized_nodes = {}
+ self.anchors = {}
+ self.last_anchor_id = 0
+
+ def anchor_node(self, node):
+ if node in self.anchors:
+ if self.anchors[node] is None:
+ self.anchors[node] = self.generate_anchor(node)
+ else:
+ self.anchors[node] = None
+ if isinstance(node, SequenceNode):
+ for item in node.value:
+ self.anchor_node(item)
+ elif isinstance(node, MappingNode):
+ for key, value in node.value:
+ self.anchor_node(key)
+ self.anchor_node(value)
+
+ def generate_anchor(self, node):
+ self.last_anchor_id += 1
+ return self.ANCHOR_TEMPLATE % self.last_anchor_id
+
+ def serialize_node(self, node, parent, index):
+ alias = self.anchors[node]
+ if node in self.serialized_nodes:
+ self.emit(AliasEvent(alias))
+ else:
+ self.serialized_nodes[node] = True
+ self.descend_resolver(parent, index)
+ if isinstance(node, ScalarNode):
+ detected_tag = self.resolve(ScalarNode, node.value, (True, False))
+ default_tag = self.resolve(ScalarNode, node.value, (False, True))
+ implicit = (node.tag == detected_tag), (node.tag == default_tag)
+ self.emit(ScalarEvent(alias, node.tag, implicit, node.value,
+ style=node.style))
+ elif isinstance(node, SequenceNode):
+ implicit = (node.tag
+ == self.resolve(SequenceNode, node.value, True))
+ self.emit(SequenceStartEvent(alias, node.tag, implicit,
+ flow_style=node.flow_style))
+ index = 0
+ for item in node.value:
+ self.serialize_node(item, node, index)
+ index += 1
+ self.emit(SequenceEndEvent())
+ elif isinstance(node, MappingNode):
+ implicit = (node.tag
+ == self.resolve(MappingNode, node.value, True))
+ self.emit(MappingStartEvent(alias, node.tag, implicit,
+ flow_style=node.flow_style))
+ for key, value in node.value:
+ self.serialize_node(key, node, None)
+ self.serialize_node(value, node, key)
+ self.emit(MappingEndEvent())
+ self.ascend_resolver()
+
diff --git a/python.d/python_modules/pyyaml3/tokens.py b/python.d/python_modules/pyyaml3/tokens.py
new file mode 100644
index 000000000..4d0b48a39
--- /dev/null
+++ b/python.d/python_modules/pyyaml3/tokens.py
@@ -0,0 +1,104 @@
+
+class Token(object):
+ def __init__(self, start_mark, end_mark):
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ def __repr__(self):
+ attributes = [key for key in self.__dict__
+ if not key.endswith('_mark')]
+ attributes.sort()
+ arguments = ', '.join(['%s=%r' % (key, getattr(self, key))
+ for key in attributes])
+ return '%s(%s)' % (self.__class__.__name__, arguments)
+
+#class BOMToken(Token):
+# id = '<byte order mark>'
+
+class DirectiveToken(Token):
+ id = '<directive>'
+ def __init__(self, name, value, start_mark, end_mark):
+ self.name = name
+ self.value = value
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+
+class DocumentStartToken(Token):
+ id = '<document start>'
+
+class DocumentEndToken(Token):
+ id = '<document end>'
+
+class StreamStartToken(Token):
+ id = '<stream start>'
+ def __init__(self, start_mark=None, end_mark=None,
+ encoding=None):
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.encoding = encoding
+
+class StreamEndToken(Token):
+ id = '<stream end>'
+
+class BlockSequenceStartToken(Token):
+ id = '<block sequence start>'
+
+class BlockMappingStartToken(Token):
+ id = '<block mapping start>'
+
+class BlockEndToken(Token):
+ id = '<block end>'
+
+class FlowSequenceStartToken(Token):
+ id = '['
+
+class FlowMappingStartToken(Token):
+ id = '{'
+
+class FlowSequenceEndToken(Token):
+ id = ']'
+
+class FlowMappingEndToken(Token):
+ id = '}'
+
+class KeyToken(Token):
+ id = '?'
+
+class ValueToken(Token):
+ id = ':'
+
+class BlockEntryToken(Token):
+ id = '-'
+
+class FlowEntryToken(Token):
+ id = ','
+
+class AliasToken(Token):
+ id = '<alias>'
+ def __init__(self, value, start_mark, end_mark):
+ self.value = value
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+
+class AnchorToken(Token):
+ id = '<anchor>'
+ def __init__(self, value, start_mark, end_mark):
+ self.value = value
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+
+class TagToken(Token):
+ id = '<tag>'
+ def __init__(self, value, start_mark, end_mark):
+ self.value = value
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+
+class ScalarToken(Token):
+ id = '<scalar>'
+ def __init__(self, value, plain, start_mark, end_mark, style=None):
+ self.value = value
+ self.plain = plain
+ self.start_mark = start_mark
+ self.end_mark = end_mark
+ self.style = style
+
diff --git a/python.d/rabbitmq.chart.py b/python.d/rabbitmq.chart.py
index eef472bf2..b8847e9f8 100644
--- a/python.d/rabbitmq.chart.py
+++ b/python.d/rabbitmq.chart.py
@@ -24,7 +24,8 @@ NODE_STATS = ['fd_used',
'mem_used',
'sockets_used',
'proc_used',
- 'disk_free'
+ 'disk_free',
+ 'run_queue'
]
OVERVIEW_STATS = ['object_totals.channels',
'object_totals.consumers',
@@ -39,7 +40,7 @@ OVERVIEW_STATS = ['object_totals.channels',
'message_stats.publish'
]
ORDER = ['queued_messages', 'message_rates', 'global_counts',
- 'file_descriptors', 'socket_descriptors', 'erlang_processes', 'memory', 'disk_space']
+ 'file_descriptors', 'socket_descriptors', 'erlang_processes', 'erlang_run_queue', 'memory', 'disk_space']
CHARTS = {
'file_descriptors': {
@@ -72,6 +73,12 @@ CHARTS = {
'lines': [
['proc_used', 'used', 'absolute']
]},
+ 'erlang_run_queue': {
+ 'options': [None, 'Erlang Run Queue', 'processes', 'overview',
+ 'rabbitmq.erlang_run_queue', 'line'],
+ 'lines': [
+ ['run_queue',' length', 'absolute']
+ ]},
'global_counts': {
'options': [None, 'Global Counts', 'counts', 'overview',
'rabbitmq.global_counts', 'line'],
diff --git a/python.d/springboot.chart.py b/python.d/springboot.chart.py
new file mode 100644
index 000000000..60ad0cccb
--- /dev/null
+++ b/python.d/springboot.chart.py
@@ -0,0 +1,151 @@
+# -*- coding: utf-8 -*-
+# Description: tomcat netdata python.d module
+# Author: Wing924
+
+import json
+from bases.FrameworkServices.UrlService import UrlService
+
+# default module values (can be overridden per job in `config`)
+# update_every = 2
+priority = 60000
+retries = 60
+
+
+DEFAULT_ORDER = ['response_code', 'threads', 'gc_time', 'gc_ope', 'heap']
+
+DEFAULT_CHARTS = {
+ 'response_code': {
+ 'options': [None, "Response Codes", "requests/s", "response", "springboot.response_code", "stacked"],
+ 'lines': [
+ ["resp_other", 'Other', 'incremental'],
+ ["resp_1xx", '1xx', 'incremental'],
+ ["resp_2xx", '2xx', 'incremental'],
+ ["resp_3xx", '3xx', 'incremental'],
+ ["resp_4xx", '4xx', 'incremental'],
+ ["resp_5xx", '5xx', 'incremental'],
+ ]},
+ 'threads': {
+ 'options': [None, "Threads", "current threads", "threads", "springboot.threads", "area"],
+ 'lines': [
+ ["threads_daemon", 'daemon', 'absolute'],
+ ["threads", 'total', 'absolute'],
+ ]},
+ 'gc_time': {
+ 'options': [None, "GC Time", "milliseconds", "garbage collection", "springboot.gc_time", "stacked"],
+ 'lines': [
+ ["gc_copy_time", 'Copy', 'incremental'],
+ ["gc_marksweepcompact_time", 'MarkSweepCompact', 'incremental'],
+ ["gc_parnew_time", 'ParNew', 'incremental'],
+ ["gc_concurrentmarksweep_time", 'ConcurrentMarkSweep', 'incremental'],
+ ["gc_ps_scavenge_time", 'PS Scavenge', 'incremental'],
+ ["gc_ps_marksweep_time", 'PS MarkSweep', 'incremental'],
+ ["gc_g1_young_generation_time", 'G1 Young Generation', 'incremental'],
+ ["gc_g1_old_generation_time", 'G1 Old Generation', 'incremental'],
+ ]},
+ 'gc_ope': {
+ 'options': [None, "GC Operations", "operations/s", "garbage collection", "springboot.gc_ope", "stacked"],
+ 'lines': [
+ ["gc_copy_count", 'Copy', 'incremental'],
+ ["gc_marksweepcompact_count", 'MarkSweepCompact', 'incremental'],
+ ["gc_parnew_count", 'ParNew', 'incremental'],
+ ["gc_concurrentmarksweep_count", 'ConcurrentMarkSweep', 'incremental'],
+ ["gc_ps_scavenge_count", 'PS Scavenge', 'incremental'],
+ ["gc_ps_marksweep_count", 'PS MarkSweep', 'incremental'],
+ ["gc_g1_young_generation_count", 'G1 Young Generation', 'incremental'],
+ ["gc_g1_old_generation_count", 'G1 Old Generation', 'incremental'],
+ ]},
+ 'heap': {
+ 'options': [None, "Heap Memory Usage", "KB", "heap memory", "springboot.heap", "area"],
+ 'lines': [
+ ["heap_committed", 'committed', "absolute"],
+ ["heap_used", 'used', "absolute"],
+ ]},
+}
+
+class ExtraChartError(ValueError):
+ pass
+
+class Service(UrlService):
+ def __init__(self, configuration=None, name=None):
+ UrlService.__init__(self, configuration=configuration, name=name)
+ self.url = self.configuration.get('url', "http://localhost:8080/metrics")
+ self._setup_charts()
+
+ def _get_data(self):
+ """
+ Format data received from http request
+ :return: dict
+ """
+ raw_data = self._get_raw_data()
+ if not raw_data:
+ return None
+
+ try:
+ data = json.loads(raw_data)
+ except ValueError:
+ self.debug('%s is not a vaild JSON page' % self.url)
+ return None
+
+ result = {
+ 'resp_1xx': 0,
+ 'resp_2xx': 0,
+ 'resp_3xx': 0,
+ 'resp_4xx': 0,
+ 'resp_5xx': 0,
+ 'resp_other': 0,
+ }
+
+ for key, value in data.iteritems():
+ if 'counter.status.' in key:
+ status_type = key[15:16] + 'xx'
+ if status_type[0] not in '12345':
+ status_type = 'other'
+ result['resp_' + status_type] += value
+ else:
+ result[key.replace('.', '_')] = value
+
+ return result or None
+
+ def _setup_charts(self):
+ self.order = []
+ self.definitions = {}
+ defaults = self.configuration.get('defaults', {})
+
+ for chart in DEFAULT_ORDER:
+ if defaults.get(chart, True):
+ self.order.append(chart)
+ self.definitions[chart] = DEFAULT_CHARTS[chart]
+
+ for extra in self.configuration.get('extras', []):
+ self._add_extra_chart(extra)
+ self.order.append(extra['id'])
+
+ def _add_extra_chart(self, chart):
+ chart_id = chart.get('id', None) or die('id is not defined in extra chart')
+ options = chart.get('options', None) or die('option is not defined in extra chart: %s' % chart_id)
+ lines = chart.get('lines', None) or die('lines is not defined in extra chart: %s' % chart_id)
+
+ title = options.get('title', None) or die('title is missing: %s' % chart_id)
+ units = options.get('units', None) or die('units is missing: %s' % chart_id)
+ family = options.get('family', title)
+ context = options.get('context', 'springboot.' + title)
+ charttype = options.get('charttype', 'line')
+
+ result = {
+ 'options': [None, title, units, family, context, charttype],
+ 'lines': [],
+ }
+
+ for line in lines:
+ dimension = line.get('dimension', None) or die('dimension is missing: %s' % chart_id)
+ name = line.get('name', dimension)
+ algorithm = line.get('algorithm', 'absolute')
+ multiplier = line.get('multiplier', 1)
+ divisor = line.get('divisor', 1)
+ result['lines'].append([dimension, name, algorithm, multiplier, divisor])
+
+ self.definitions[chart_id] = result
+
+ @staticmethod
+ def die(error_message):
+ raise ExtraChartError(error_message)
diff --git a/python.d/traefik.chart.py b/python.d/traefik.chart.py
new file mode 100644
index 000000000..f7c3e223b
--- /dev/null
+++ b/python.d/traefik.chart.py
@@ -0,0 +1,181 @@
+# -*- coding: utf-8 -*-
+# Description: traefik netdata python.d module
+# Author: Alexandre Menezes (@ale_menezes)
+
+from json import loads
+from collections import defaultdict
+from bases.FrameworkServices.UrlService import UrlService
+
+# default module values (can be overridden per job in `config`)
+update_every = 1
+priority = 60000
+retries = 10
+
+# charts order (can be overridden if you want less charts, or different order)
+ORDER = [
+ 'response_statuses',
+ 'response_codes',
+ 'detailed_response_codes',
+ 'requests',
+ 'total_response_time',
+ 'average_response_time',
+ 'average_response_time_per_iteration',
+ 'uptime'
+]
+
+CHARTS = {
+ 'response_statuses': {
+ 'options': [None, 'Response statuses', 'requests/s', 'responses', 'traefik.response_statuses', 'stacked'],
+ 'lines': [
+ ['successful_requests', 'success', 'incremental'],
+ ['server_errors', 'error', 'incremental'],
+ ['redirects', 'redirect', 'incremental'],
+ ['bad_requests', 'bad', 'incremental'],
+ ['other_requests', 'other', 'incremental']
+ ]},
+ 'response_codes': {
+ 'options': [None, 'Responses by codes', 'requests/s', 'responses', 'traefik.response_codes', 'stacked'],
+ 'lines': [
+ ['2xx', None, 'incremental'],
+ ['5xx', None, 'incremental'],
+ ['3xx', None, 'incremental'],
+ ['4xx', None, 'incremental'],
+ ['1xx', None, 'incremental'],
+ ['other', None, 'incremental']
+ ]},
+ 'detailed_response_codes': {
+ 'options': [None, 'Detailed response codes', 'requests/s', 'responses', 'traefik.detailed_response_codes', 'stacked'],
+ 'lines': [
+ ]},
+ 'requests': {
+ 'options': [None, 'Requests', 'requests/s', 'requests', 'traefik.requests', 'line'],
+ 'lines': [
+ ['total_count', 'requests', 'incremental']
+ ]},
+ 'total_response_time': {
+ 'options': [None, 'Total response time', 'seconds', 'timings', 'traefik.total_response_time', 'line'],
+ 'lines': [
+ ['total_response_time_sec', 'response', 'absolute', 1, 10000]
+ ]},
+ 'average_response_time': {
+ 'options': [None, 'Average response time', 'milliseconds', 'timings', 'traefik.average_response_time', 'line'],
+ 'lines': [
+ ['average_response_time_sec', 'response', 'absolute', 1, 1000]
+ ]},
+ 'average_response_time_per_iteration': {
+ 'options': [None, 'Average response time per iteration', 'milliseconds', 'timings', 'traefik.average_response_time_per_iteration', 'line'],
+ 'lines': [
+ ['average_response_time_per_iteration_sec', 'response', 'incremental', 1, 10000]
+ ]},
+ 'uptime': {
+ 'options': [None, 'Uptime', 'seconds', 'uptime', 'traefik.uptime', 'line'],
+ 'lines': [
+ ['uptime_sec', 'uptime', 'absolute']
+ ]}
+ }
+
+HEALTH_STATS = [
+ 'uptime_sec',
+ 'average_response_time_sec',
+ 'total_response_time_sec',
+ 'total_count',
+ 'total_status_code_count'
+]
+
+class Service(UrlService):
+ def __init__(self, configuration=None, name=None):
+ UrlService.__init__(self, configuration=configuration, name=name)
+ self.url = self.configuration.get('url', 'http://localhost:8080/health')
+ self.order = ORDER
+ self.definitions = CHARTS
+ self.data = {
+ 'successful_requests': 0, 'redirects': 0, 'bad_requests': 0,
+ 'server_errors': 0, 'other_requests': 0, '1xx': 0, '2xx': 0,
+ '3xx': 0, '4xx': 0, '5xx': 0, 'other': 0,
+ 'average_response_time_per_iteration_sec': 0
+ }
+ self.last_total_response_time = 0
+ self.last_total_count = 0
+
+ def _get_data(self):
+ data = self._get_raw_data()
+
+ if not data:
+ return None
+
+ data = loads(data)
+
+ self.get_data_per_code_status(raw_data=data)
+
+ self.get_data_per_code_family(raw_data=data)
+
+ self.get_data_per_code(raw_data=data)
+
+ self.data.update(fetch_data_(raw_data=data, metrics=HEALTH_STATS))
+
+ self.data['average_response_time_sec'] *= 1000000
+ self.data['total_response_time_sec'] *= 10000
+ if data['total_count'] != self.last_total_count:
+ self.data['average_response_time_per_iteration_sec'] = (data['total_response_time_sec'] - self.last_total_response_time) * 1000000 / (data['total_count'] - self.last_total_count)
+ else:
+ self.data['average_response_time_per_iteration_sec'] = 0
+ self.last_total_response_time = data['total_response_time_sec']
+ self.last_total_count = data['total_count']
+
+ return self.data or None
+
+ def get_data_per_code_status(self, raw_data):
+ data = defaultdict(int)
+ for code, value in raw_data['total_status_code_count'].items():
+ code_prefix = code[0]
+ if code_prefix == '1' or code_prefix == '2' or code == '304':
+ data['successful_requests'] += value
+ elif code_prefix == '3':
+ data['redirects'] += value
+ elif code_prefix == '4':
+ data['bad_requests'] += value
+ elif code_prefix == '5':
+ data['server_errors'] += value
+ else:
+ data['other_requests'] += value
+ self.data.update(data)
+
+ def get_data_per_code_family(self, raw_data):
+ data = defaultdict(int)
+ for code, value in raw_data['total_status_code_count'].items():
+ code_prefix = code[0]
+ if code_prefix == '1':
+ data['1xx'] += value
+ elif code_prefix == '2':
+ data['2xx'] += value
+ elif code_prefix == '3':
+ data['3xx'] += value
+ elif code_prefix == '4':
+ data['4xx'] += value
+ elif code_prefix == '5':
+ data['5xx'] += value
+ else:
+ data['other'] += value
+ self.data.update(data)
+
+ def get_data_per_code(self, raw_data):
+ for code, value in raw_data['total_status_code_count'].items():
+ if self.charts:
+ if code not in self.data:
+ self.charts['detailed_response_codes'].add_dimension([code, code, 'incremental'])
+ self.data[code] = value
+
+def fetch_data_(raw_data, metrics):
+ data = dict()
+
+ for metric in metrics:
+ value = raw_data
+ metrics_list = metric.split('.')
+ try:
+ for m in metrics_list:
+ value = value[m]
+ except KeyError:
+ continue
+ data['_'.join(metrics_list)] = value
+
+ return data
diff --git a/python.d/web_log.chart.py b/python.d/web_log.chart.py
index 954ecd41d..be9baba92 100644
--- a/python.d/web_log.chart.py
+++ b/python.d/web_log.chart.py
@@ -5,6 +5,7 @@
import bisect
import re
import os
+import sys
from collections import namedtuple, defaultdict
from copy import deepcopy
@@ -21,7 +22,8 @@ from bases.FrameworkServices.LogService import LogService
ORDER_APACHE_CACHE = ['apache_cache']
-ORDER_WEB = ['response_statuses', 'response_codes', 'bandwidth', 'response_time', 'response_time_upstream',
+ORDER_WEB = ['response_statuses', 'response_codes', 'bandwidth',
+ 'response_time', 'response_time_hist', 'response_time_upstream', 'response_time_upstream_hist',
'requests_per_url', 'requests_per_user_defined', 'http_method', 'http_version',
'requests_per_ipproto', 'clients', 'clients_all']
@@ -55,6 +57,10 @@ CHARTS_WEB = {
['resp_time_max', 'max', 'incremental', 1, 1000],
['resp_time_avg', 'avg', 'incremental', 1, 1000]
]},
+ 'response_time_hist': {
+ 'options': [None, 'Processing Time Histogram', 'requests/s', 'timings', 'web_log.response_time_hist', 'line'],
+ 'lines': [
+ ]},
'response_time_upstream': {
'options': [None, 'Processing Time Upstream', 'milliseconds', 'timings',
'web_log.response_time_upstream', 'area'],
@@ -63,6 +69,11 @@ CHARTS_WEB = {
['resp_time_upstream_max', 'max', 'incremental', 1, 1000],
['resp_time_upstream_avg', 'avg', 'incremental', 1, 1000]
]},
+ 'response_time_upstream_hist': {
+ 'options': [None, 'Processing Time Histogram', 'requests/s', 'timings',
+ 'web_log.response_time_upstream_hist', 'line'],
+ 'lines': [
+ ]},
'clients': {
'options': [None, 'Current Poll Unique Client IPs', 'unique ips', 'clients', 'web_log.clients', 'stacked'],
'lines': [
@@ -347,8 +358,30 @@ class Web:
"""
if 'resp_time' not in match_dict:
self.order.remove('response_time')
+ self.order.remove('response_time_hist')
if 'resp_time_upstream' not in match_dict:
self.order.remove('response_time_upstream')
+ self.order.remove('response_time_upstream_hist')
+
+ # Add 'response_time_hist' and 'response_time_upstream_hist' charts if is specified in the configuration
+ histogram = self.configuration.get('histogram', None)
+ if isinstance(histogram, list):
+ self.storage['bucket_index'] = histogram[:]
+ self.storage['bucket_index'].append(sys.maxint)
+ self.storage['buckets'] = [0] * (len(histogram) + 1)
+ self.storage['upstream_buckets'] = [0] * (len(histogram) + 1)
+ hist_lines = self.definitions['response_time_hist']['lines']
+ upstream_hist_lines = self.definitions['response_time_upstream_hist']['lines']
+ for i, le in enumerate(histogram):
+ hist_key = "response_time_hist_%d" % i
+ upstream_hist_key = "response_time_upstream_hist_%d" % i
+ hist_lines.append([hist_key, str(le), 'incremental', 1, 1])
+ upstream_hist_lines.append([upstream_hist_key, str(le), 'incremental', 1, 1])
+
+ hist_lines.append(["response_time_hist_%d" % len(histogram), '+Inf', 'incremental', 1, 1])
+ upstream_hist_lines.append(["response_time_upstream_hist_%d" % len(histogram), '+Inf', 'incremental', 1, 1])
+ elif histogram is not None:
+ self.error("expect histogram list, but was {0}".format(type(histogram)))
if not self.configuration.get('all_time', True):
self.order.remove('clients_all')
@@ -431,11 +464,15 @@ class Web:
resp_length = match_dict['resp_length'] if '-' not in match_dict['resp_length'] else 0
self.data['resp_length'] += int(resp_length)
if 'resp_time' in match_dict:
- get_timings(timings=timings['resp_time'],
- time=self.storage['func_resp_time'](float(match_dict['resp_time'])))
+ resp_time = self.storage['func_resp_time'](float(match_dict['resp_time']))
+ get_timings(timings=timings['resp_time'], time=resp_time)
+ if 'bucket_index' in self.storage:
+ get_hist(self.storage['bucket_index'], self.storage['buckets'], resp_time / 1000)
if 'resp_time_upstream' in match_dict and match_dict['resp_time_upstream'] != '-':
- get_timings(timings=timings['resp_time_upstream'],
- time=self.storage['func_resp_time'](float(match_dict['resp_time_upstream'])))
+ resp_time_upstream = self.storage['func_resp_time'](float(match_dict['resp_time_upstream']))
+ get_timings(timings=timings['resp_time_upstream'], time=resp_time_upstream)
+ if 'bucket_index' in self.storage:
+ get_hist(self.storage['bucket_index'], self.storage['upstream_buckets'], resp_time / 1000)
# requests per ip proto
proto = 'ipv6' if ':' in match_dict['address'] else 'ipv4'
self.data['req_' + proto] += 1
@@ -456,6 +493,17 @@ class Web:
self.data[elem + '_min'] += timings[elem]['minimum']
self.data[elem + '_avg'] += timings[elem]['summary'] / timings[elem]['count']
self.data[elem + '_max'] += timings[elem]['maximum']
+
+ # histogram
+ if 'bucket_index' in self.storage:
+ buckets = self.storage['buckets']
+ upstream_buckets = self.storage['upstream_buckets']
+ for i in range(0, len(self.storage['bucket_index'])):
+ hist_key = "response_time_hist_%d" % i
+ upstream_hist_key = "response_time_upstream_hist_%d" % i
+ self.data[hist_key] = buckets[i]
+ self.data[upstream_hist_key] = upstream_buckets[i]
+
return self.data
def find_regex(self, last_line):
@@ -903,6 +951,18 @@ def get_timings(timings, time):
timings['summary'] += time
timings['count'] += 1
+def get_hist(index, buckets, time):
+ """
+ :param index: histogram index (Ex. [10, 50, 100, 150, ...])
+ :param buckets: histogram buckets
+ :param time: time
+ :return: None
+ """
+ for i in range(len(index)-1, -1, -1):
+ if time <= index[i]:
+ buckets[i] += 1
+ else:
+ break
def address_not_in_pool(pool, address, pool_size):
"""