-#!/bin/bash
+# no need for shebang - this file is loaded from charts.d.plugin
+
+# netdata
+# real-time performance and health monitoring, done right!
+# (C) 2016 Costa Tsaousis <costa@tsaousis.gr>
+# GPL v3+
+#
+# Contributed by @jgeromero with PR #277
# Description: Tomcat netdata charts.d plugin
# Author: Jorge Romero
# the URL to download tomcat status info
-tomcat_url="http://localhost:8080/manager/status?XML=true"
+# usually http://localhost:8080/manager/status?XML=true
+tomcat_url=""
+tomcat_curl_opts=""
-# set tomcat user/password here
-tomcatUser=""
-tomcatPassword=""
+# set tomcat username/password here
+tomcat_user=""
+tomcat_password=""
# _update_every is a special variable - it holds the number of seconds
# between the calls of the _update() function
require_cmd xmlstarlet || return 1
+
+ # check if url, username, passwords are set
+ if [ -z "${tomcat_url}" ]; then
+ error "tomcat url is unset or set to the empty string"
+ return 1
+ fi
+ if [ -z "${tomcat_user}" ]; then
+ # check backwards compatibility
+ if [ -z "${tomcatUser}" ]; then
+ error "tomcat user is unset or set to the empty string"
+ return 1
+ else
+ tomcat_user="${tomcatUser}"
+ fi
+ fi
+ if [ -z "${tomcat_password}" ]; then
+ # check backwards compatibility
+ if [ -z "${tomcatPassword}" ]; then
+ error "tomcat password is unset or set to the empty string"
+ return 1
+ else
+ tomcat_password="${tomcatPassword}"
+ fi
+ fi
+
+ # check if we can get to tomcat's status page
tomcat_get
if [ $? -ne 0 ]
then
- echo >&2 "tomcat: cannot find stub_status on URL '${tomcat_url}'. Please set tomcat_url='http://<user>:<password>@localhost:8080/manager/status?XML=true'"
+ error "cannot get to status page on URL '${tomcat_url}'. Please make sure tomcat url, username and password are correct."
return 1
fi
}
tomcat_get() {
- # Collect tomcat values
- mapfile -t lines < <(curl -u "$tomcatUser":"$tomcatPassword" -Ss "$tomcat_url" |\
- xmlstarlet sel \
+ # collect tomcat values
+ tomcat_port="$(IFS=/ read -ra a <<< "$tomcat_url"; hostport=${a[2]}; echo "${hostport#*:}")"
+ mapfile -t lines < <(run curl -u "$tomcat_user":"$tomcat_password" -Ss ${tomcat_curl_opts} "$tomcat_url" |\
+ run xmlstarlet sel \
-t -m "/status/jvm/memory" -v @free \
- -n -m "/status/connector[@name='\"http-bio-8080\"']/threadInfo" -v @currentThreadCount \
+ -n -m "/status/connector[@name='\"http-bio-$tomcat_port\"']/threadInfo" -v @currentThreadCount \
-n -v @currentThreadsBusy \
- -n -m "/status/connector[@name='\"http-bio-8080\"']/requestInfo" -v @requestCount \
+ -n -m "/status/connector[@name='\"http-bio-$tomcat_port\"']/requestInfo" -v @requestCount \
-n -v @bytesSent -n -)
tomcat_jvm_freememory="${lines[0]}"