tomcat.sh

#!/bin/bash
#
# tomcat7     This shell script takes care of starting and stopping Tomcat
#
# chkconfig: - 80 20
#
### BEGIN INIT INFO
# Provides: tomcat
# Required-Start: $network $syslog
# Required-Stop: $network $syslog
# Default-Start:
# Default-Stop:
# Description: Apache Tomcat
# Short-Description: Start and stop Apache Tomcat
### END INIT INFO

. /etc/rc.d/init.d/functions

. /etc/default/tomcat

export JAVA_HOME=${JAVA_HOME:=/usr/java/default}
export PATH=$JAVA_HOME/bin:$PATH

export TOMCAT_HOME=${TOMCAT_HOME:=/opt/tomcat}

export TOMCAT_LOGS=${TOMCAT_LOGS:=/var/log/tomcat}

export CATALINA_PID=${CATALINA_PID:=$TOMCAT_HOME/tomcat.pid}

export TOMCAT_USER=${TOMCAT_USER:=tomcat}

export JAVA_OPTS=${JAVA_OPTS:="-Dfile.encoding=UTF-8 \
  -Dcatalina.logbase=$TOMCAT_LOGS \
  -Dnet.sf.ehcache.skipUpdateCheck=true \
  -XX:+DoEscapeAnalysis \
  -XX:+UseConcMarkSweepGC \
  -XX:+CMSClassUnloadingEnabled \
  -XX:+UseParNewGC \
  -XX:MaxPermSize=128m \
  -Xms1g \
  -Xmx1g"}

SHUTDOWN_WAIT=20

usage() {
    echo "$(basename $0) [start|stop|restart|status]"
}

tomcat_pid() {
    if [[ -z $CATALINA_PID && -e $CATALINA_PID ]]; then
        cat $CATALINA_PID
    else
        echo $(ps aux | grep org.apache.catalina.startup.Bootstrap | grep -v grep | awk '{ print $2 }')
    fi
}

start() {
    pid=$(tomcat_pid)
    if [ -n "$pid" ]; then
        echo "Tomcat is already running (pid: $pid)"
    else
        echo "Starting tomcat"
        ulimit -n 100000
        umask 007
        /bin/su -p $TOMCAT_USER -c $TOMCAT_HOME/bin/startup.sh
    fi
    
    return 0
}

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

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

        if [ $count -gt $kwait ]; then
            echo -n -e "killing pid $pid which didn't stop after $SHUTDOWN_WAIT seconds\n"
            kill -9 $pid
        fi
    else
        echo "Tomcat is not running"
    fi
 
    return 0
}

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
        ;;
    *)
      usage
      ;;
esac    
exit 0