tomcat_daemon.sh

#!/bin/bash

#**********************************************************************************************************************
# tomcat7     This shell script takes care of starting and stopping Tomcat
#
# chkconfig: - 80 20
#
### BEGIN INIT INFO
# Provides:          tomcat7
# Required-Start:    $network $syslog
# Required-Stop:     $network $syslog
# Default-Start:
# Default-Stop:
# Short-Description: Start tomcat daemon at boot time
# Description:       start, stop and restart tomcat.
### END INIT INFO
#
# Created By: Arul - me@arulraj.net
# Update history:
# v0.1 - 30-Aug-2014 - First release
#**********************************************************************************************************************

## Source function library.
#. /etc/rc.d/init.d/functions
# Give your tomcat installed path here
TOMCAT_HOME=/usr/share/tomcat7
export JAVA_HOME=/usr/java/default
export JAVA_OPTS="-Djava.awt.headless=true \
  -Dfile.encoding=UTF-8 \
  -Dcatalina.logbase=/var/log/tomcat7 \
  -Dnet.sf.ehcache.skipUpdateCheck=true \
  -XX:+DoEscapeAnalysis \
  -XX:+UseConcMarkSweepGC \
  -XX:+CMSClassUnloadingEnabled \
  -XX:+UseParNewGC \
  -XX:+DisableExplicitGC \
  -XX:NewSize=256m \
  -XX:MaxNewSize=256m \
  -XX:PermSize=256m \
  -XX:MaxPermSize=1024m \
  -Xms512m -Xmx4096m"
export PATH=$JAVA_HOME/bin:$PATH
SHUTDOWN_WAIT=20

tomcat_pid() {
    echo `ps aux | grep org.apache.catalina.startup.Bootstrap | grep -v grep | awk '{ print $2 }'`
}

start() {
    pid=$(tomcat_pid)
    if [ -n "$pid" ]
    then
        echo "Tomcat is already running (pid: $pid)"
    else
        # Start tomcat
        echo "Starting tomcat"
        ulimit -n 100000
        umask 007
        /bin/su -p -s /bin/sh tomcat $TOMCAT_HOME/bin/startup.sh
    fi


    return 0
}

stop() {
    pid=$(tomcat_pid)
    if [ -n "$pid" ]
    then
        echo "Stoping Tomcat"
        /bin/su -p -s /bin/sh tomcat $TOMCAT_HOME/bin/shutdown.sh

        let kwait=$SHUTDOWN_WAIT
        count=0;
        until [ `ps -p $pid | grep -c $pid` = '0' ] || [ $count -gt $kwait ]
        do
            echo -n -e "\nwaiting for processes to exit";
            sleep 1
            let count=$count+1;
        done

        if [ $count -gt $kwait ]; then
            echo -n -e "\nkilling processes which didn't stop after $SHUTDOWN_WAIT seconds"
            kill -9 $pid
        fi
    else
        echo "Tomcat is not running"
    fi

    return 0
}

# How its called.
function main {
    case $1 in
        start)
            start
        ;;
        stop)
            stop
        ;;
        restart)
            stop
            start
        ;;
        status)
            pid=$(tomcat_pid)
            if [ -n "$pid" ]
            then
                echo "Tomcat is running with pid: $pid"
            else
                echo "Tomcat is not running"
            fi
        ;;
    esac
    exit 0
}