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Diffstat (limited to 'python.d/tomcat.chart.py')
-rw-r--r-- | python.d/tomcat.chart.py | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/python.d/tomcat.chart.py b/python.d/tomcat.chart.py new file mode 100644 index 000000000..31f6ab248 --- /dev/null +++ b/python.d/tomcat.chart.py @@ -0,0 +1,111 @@ +# -*- 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)) |