Tomcat linux service

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#!/bin/sh
#
# Startup script for Tomcat, the Apache Servlet Engine
#
# chkconfig: 345 80 20
# description: Tomcat is the Apache Servlet Engine RI for Servlet 2.3/JSP 1.2
# processname: tomcat
# pidfile: /var/run/tomcat.pid
# config:  /etc/tomcat4/conf/tomcat4.conf
#

# Source function library.
if [ -x /etc/rc.d/init.d/functions ]; then
. /etc/rc.d/init.d/functions
fi

# Set JAVA_HOME
# JAVA_HOME=/opt/java
# JRE_HOME=/opt/java
# Set in CATALINA.sh

# Get Tomcat config
TOMCAT_CFG="/etc/tomcat4/conf/tomcat4.conf"

[ -r "$TOMCAT_CFG" ] && . "${TOMCAT_CFG}"

# Path to the tomcat launch script (direct don't use wrapper)
TOMCAT_START_SCRIPT=/opt/tomcat/bin/startup.sh
TOMCAT_STOP_SCRIPT=/opt/tomcat/bin/shutdown.sh

# Tomcat name :)
TOMCAT_PROG=tomcat

# if TOMCAT_USER is not set, use tomcat like Apache HTTP server
if [ -z "$TOMCAT_USER" ]; then
    TOMCAT_USER="tomcat"
fi

# Since the daemon function will sandbox $tomcat
# no environment stuff should be defined here anymore.
# Please use the /etc/tomcat.conf file instead ; it will
# be read by the $tomcat script

RETVAL=0

# See how we were called.
start() {
    echo -n "Starting $TOMCAT_PROG: "

    #chown -R $TOMCAT_USER:$TOMCAT_USER $CATALINA_HOME/logs
    #chown -R $TOMCAT_USER:$TOMCAT_USER $CATALINA_HOME/work
    #chown -R $TOMCAT_USER:$TOMCAT_USER $CATALINA_TMPDIR
    #chown -R $TOMCAT_USER:$TOMCAT_USER $CATALINA_HOME/webapps

    if [ -x /etc/rc.d/init.d/functions ]; then
        daemon --user $TOMCAT_USER $TOMCAT_START_SCRIPT
    else
        su - $TOMCAT_USER -c "$TOMCAT_START_SCRIPT"
    fi

    RETVAL=$?
    echo
    [ $RETVAL = 0 ] && touch /var/lock/subsys/tomcat
    return $RETVAL
}

stop() {
    echo -n "Stopping $TOMCAT_PROG: "
    if [ -x /etc/rc.d/init.d/functions ]; then
        daemon --user $TOMCAT_USER $TOMCAT_STOP_SCRIPT
    else
        su - $TOMCAT_USER -c "$TOMCAT_STOP_SCRIPT"
    fi
    RETVAL=$?
    echo
    [ $RETVAL = 0 ] && rm -f /var/lock/subsys/tomcat /var/run/tomcat.pid
}

# See how we were called.
case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  restart)
        stop
# Ugly hack
# We should really make sure tomcat
# is stopped before leaving stop
        sleep 2
        start
        ;;
  condrestart)
        if [ -f /var/run/tomcat.pid ] ; then
                stop
                start
        fi
        ;;
  *)
        echo "Usage: $TOMCAT_PROG {start|stop|restart|condrestart}"
        exit 1
esac

exit $RETVAL