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authorLennart Weller <lhw@ring0.de>2016-09-05 08:27:21 +0000
committerLennart Weller <lhw@ring0.de>2016-09-05 08:27:21 +0000
commit1746898cefcb17f58b5cf27b4dad3d28236f1152 (patch)
tree9207f191cf39bbd077a1e1c73d6e82123e2fc710 /python.d/tomcat.chart.py
parentImported Upstream version 1.2.0+dfsg (diff)
downloadnetdata-1746898cefcb17f58b5cf27b4dad3d28236f1152.tar.xz
netdata-1746898cefcb17f58b5cf27b4dad3d28236f1152.zip
Imported Upstream version 1.3.0+dfsgupstream/1.3.0+dfsg
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-rw-r--r--python.d/tomcat.chart.py111
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diff --git a/python.d/tomcat.chart.py b/python.d/tomcat.chart.py
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+# -*- coding: utf-8 -*-
+# Description: tomcat netdata python.d module
+# Author: Pawel Krupa (paulfantom)
+
+# Python version higher than 2.7 is needed to run this module.
+
+from base import UrlService
+import xml.etree.ElementTree as ET # phone home...
+#from xml.parsers.expat import errors
+
+# default module values (can be overridden per job in `config`)
+# update_every = 2
+priority = 60000
+retries = 60
+
+# charts order (can be overridden if you want less charts, or different order)
+ORDER = ['accesses', 'volume', 'threads', 'jvm']
+
+CHARTS = {
+ 'accesses': {
+ 'options': [None, "Requests", "requests/s", "statistics", "tomcat.accesses", "area"],
+ 'lines': [
+ ["accesses", None, 'incremental']
+ ]},
+ 'volume': {
+ 'options': [None, "Volume", "KB/s", "volume", "tomcat.volume", "area"],
+ 'lines': [
+ ["volume", None, 'incremental', 1, 1024]
+ ]},
+ 'threads': {
+ 'options': [None, "Threads", "current threads", "statistics", "tomcat.threads", "line"],
+ 'lines': [
+ ["current", None, "absolute"],
+ ["busy", None, "absolute"]
+ ]},
+ 'jvm': {
+ 'options': [None, "JVM Free Memory", "MB", "statistics", "tomcat.jvm", "area"],
+ 'lines': [
+ ["jvm", None, "absolute", 1, 1048576]
+ ]}
+}
+
+
+class Service(UrlService):
+ def __init__(self, configuration=None, name=None):
+ UrlService.__init__(self, configuration=configuration, name=name)
+ if len(self.url) == 0:
+ self.url = "http://localhost:8080/manager/status?XML=true"
+ self.order = ORDER
+ self.definitions = CHARTS
+ self.port = 8080
+
+ def check(self):
+ if UrlService.check(self):
+ return True
+
+ # get port from url
+ self.port = 0
+ for i in self.url.split('/'):
+ try:
+ int(i[-1])
+ self.port = i.split(':')[-1]
+ break
+ except:
+ pass
+ if self.port == 0:
+ self.port = 80
+
+ test = self._get_data()
+ if test is None or len(test) == 0:
+ return False
+ else:
+ return True
+
+ def _get_data(self):
+ """
+ Format data received from http request
+ :return: dict
+ """
+ try:
+ raw = self._get_raw_data()
+ try:
+ data = ET.fromstring(raw)
+ except ET.ParseError as e:
+ # if e.code == errors.codes[errors.XML_ERROR_JUNK_AFTER_DOC_ELEMENT]:
+ if e.code == 9:
+ end = raw.find('</status>')
+ end += 9
+ raw = raw[:end]
+ self.debug(raw)
+ data = ET.fromstring(raw)
+ else:
+ raise Exception(e)
+
+ memory = data.find('./jvm/memory')
+ threads = data.find("./connector[@name='\"http-bio-" + str(self.port) + "\"']/threadInfo")
+ requests = data.find("./connector[@name='\"http-bio-" + str(self.port) + "\"']/requestInfo")
+
+ return {'accesses': requests.attrib['requestCount'],
+ 'volume': requests.attrib['bytesSent'],
+ 'current': threads.attrib['currentThreadCount'],
+ 'busy': threads.attrib['currentThreadsBusy'],
+ 'jvm': memory.attrib['free']}
+ except (ValueError, AttributeError) as e:
+ self.debug(str(e))
+ return None
+ except SyntaxError as e:
+ self.error("Tomcat module needs python 2.7 at least. Stopping")
+ self.debug(str(e))
+ except Exception as e:
+ self.debug(str(e))