File tomcat6-6.0.init of Package tomcat6

#!/bin/bash
# Copyright (c) 2008 SuSE Linux AG Nuernberg, Germany.
#
# - originally written by Henri Gomez, Keith Irwin, and Nicolas Mailhot
# - heavily rewritten by Deepak Bhole and Jason Corley
# - merged with previous SUSE's rctomcat55 by Petr Mladek and jpackage.org
#   original by Michal Vyskocil
#
# /etc/init.d/tomcat6
#
#   and its symbolic link
#
# /usr/sbin/rctomcat6
#
# System startup script for the Tomcat servlet container
#
### BEGIN INIT INFO
# Provides: tomcat
# Required-Start: $network $syslog $remote_fs
# Should-Start: $named $syslog $time
# Required-Stop: $network $syslog
# Should-Stop: $named $syslog $time
# Default-Start:  3 5
# Default-Stop:   0 1 2 6
# Short-Description: Tomcat Servlet Container
# Description:    Start Tomcat to allow JAVA server pages
### END INIT INFO

# set a minimalist PATH
PATH="/bin:/sbin"

NAME="$(basename $0)"
unset ISBOOT
if [ "${NAME:0:1}" = "S" -o "${NAME:0:1}" = "K" ]; then
    NAME="${NAME:3}"
    ISBOOT="1"
fi

# remove SUSE's rc name
if [ "${NAME:0:2}" = "rc" ]; then
    NAME="${NAME:2}"
fi

# For SELinux we need to use 'runuser' not 'su'
if [ -x "/sbin/runuser" ]; then
    SU="/sbin/runuser"
else
    SU="/bin/su"
fi

# Get the tomcat config (use this for environment specific settings)
TOMCAT_CFG="/etc/tomcat6/tomcat6.conf"
if [ -r "$TOMCAT_CFG" ]; then
    . $TOMCAT_CFG
fi

# Get instance specific config file
if [ -r "/etc/sysconfig/${NAME}" ]; then
    . /etc/sysconfig/${NAME}
fi

# Define which connector port to use
CONNECTOR_PORT="${CONNECTOR_PORT:-8080}"

# Path to the tomcat launch script
TOMCAT_SCRIPT="/usr/bin/dtomcat6"

# Tomcat program name
TOMCAT_PROG="$NAME"
        
# Define the tomcat username
TOMCAT_USER="${TOMCAT_USER:-tomcat}"

# Define the tomcat log file
TOMCAT_LOG="${TOMCAT_LOG:-/var/log/tomcat6/catalina.out}"

RETVAL="0"

# pulled from RHEL4 /etc/rc.d/init.d/functions
function checkpid() {
    local i
    for i in $* ; do
        if [ -d "/proc/${i}" ]; then
            return 0
        fi
    done
    return 1
}

# Shell functions sourced from /etc/rc.status:
#      rc_check         check and set local and overall rc status
#      rc_status        check and set local and overall rc status
#      rc_status -v     ditto but be verbose in local rc status
#      rc_status -v -r  ditto and clear the local rc status
#      rc_failed        set local and overall rc status to failed
#      rc_failed <num>  set local and overall rc status to <num><num>
#      rc_reset         clear local rc status (overall remains)
#      rc_exit          exit appropriate to overall rc status
. /etc/rc.status

# First reset status of this service
rc_reset

# Return values acc. to LSB for all commands but status:
# 0 - success
# 1 - generic or unspecified error
# 2 - invalid or excess argument(s)
# 3 - unimplemented feature (e.g. "reload")
# 4 - insufficient privilege
# 5 - program is not installed
# 6 - program is not configured
# 7 - program is not running
# 
# Note that starting an already running service, stopping
# or restarting a not-running service as well as the restart
# with force-reload (in case signalling is not supported) are
# considered a success.

# Look for open ports, as the function name might imply
function findFreePorts() {
    local isSet1="false"
    local isSet2="false"
    local isSet3="false"
    local lower="8000"
    randomPort1="0"
    randomPort2="0"
    randomPort3="0"
    local -a listeners="( $(
                        netstat -ntl | \
                        awk '/^tcp/ {gsub("(.)*:", "", $4); print $4}'
                    ) )"
    while [ "$isSet1" = "false" ] || \
          [ "$isSet2" = "false" ] || \
          [ "$isSet3" = "false" ]; do
        let port="${lower}+${RANDOM:0:4}"
        if [ -z `expr " ${listeners[*]} " : ".*$ $port $.*"` ]; then
            if [ "$isSet1" = "false" ]; then
                export randomPort1="$port"
                isSet1="true"
            elif [ "$isSet2" = "false" ]; then
                export randomPort2="$port"
                isSet2="true"
            elif [ "$isSet3" = "false" ]; then
                export randomPort3="$port"
                isSet3="true"
            fi
        fi
    done
}

function makeHomeDir() {
    if [ ! -d "$CATALINA_HOME" ]; then
        echo "$CATALINA_HOME does not exist, creating"
        if [ ! -d "/usr/share/${NAME}" ]; then
            mkdir /usr/share/${NAME}
            cp -pLR /usr/share/tomcat6/* /usr/share/${NAME}
        fi
        mkdir -p /var/log/${NAME} \
                 /var/cache/${NAME} \
                 /var/tmp/${NAME}
        ln -fs /var/cache/${NAME} ${CATALINA_HOME}/work
        ln -fs /var/tmp/${NAME} ${CATALINA_HOME}/temp
        cp -pLR /usr/share/${NAME}/bin $CATALINA_HOME
        cp -pLR /usr/share/${NAME}/conf $CATALINA_HOME
        ln -fs /usr/share/java/tomcat6 ${CATALINA_HOME}/lib
        ln -fs /usr/share/tomcat6/webapps ${CATALINA_HOME}/webapps
        chown ${TOMCAT_USER}:${TOMCAT_USER} /var/log/${NAME}
    fi
}

# See how we were called.
function start() {
    echo -n "Starting Tomcat ($CATALINA_BASE)"
    if [ -f "/var/lock/subsys/${NAME}" ] ; then
        if [ -f "/var/run/${NAME}.pid" ]; then
            read kpid < /var/run/${NAME}.pid
                if checkpid $kpid 2>&1; then
                    echo "$NAME process already running"
                        rc_failed 0
                    else
                        echo -n "lock file found but no process running for pid $kpid, continuing"
                        rc_failed 7
                fi
        fi
    fi
    # fix permissions on the log and pid files
    export CATALINA_PID="/var/run/${NAME}.pid"
    touch $CATALINA_PID
    chown ${TOMCAT_USER}:${TOMCAT_USER} $CATALINA_PID
    touch $TOMCAT_LOG
    chown ${TOMCAT_USER}:${TOMCAT_USER} $TOMCAT_LOG
    if [ "$CATALINA_HOME" != "/usr/share/tomcat6" ]; then
        # Create a tomcat directory if it doesn't exist
        makeHomeDir
        # If CATALINA_HOME doesn't exist modify port number so that
        # multiple instances don't interfere with each other
        findFreePorts
        sed -i -e "s/8005/${randomPort1}/g" -e "s/8080/${CONNECTOR_PORT}/g" \
            -e "s/8009/${randomPort2}/g" -e "s/8443/${randomPort3}/g" \
            ${CATALINA_HOME}/conf/server.xml
    fi
    if [ "$SECURITY_MANAGER" = "true" ]; then
        $SU - $TOMCAT_USER -c "$TOMCAT_SCRIPT start-security" \
            >> $TOMCAT_LOG 2>&1
    else
        $SU - $TOMCAT_USER -c "$TOMCAT_SCRIPT start" >> $TOMCAT_LOG 2>&1
    fi
    RETVAL="$?"
    if [ "$RETVAL" -eq 0 ]; then 
        rc_failed 0
        touch /var/lock/subsys/${NAME}
    else
        rc_failed 7
    fi
    rc_status -v
}

## Check status with checkproc(8), if process is running
## checkproc will return with exit status 0.

# Status has a slightly different for the status command:
# 0 - service running
# 1 - service dead, but /var/run/  pid  file exists
# 2 - service dead, but /var/lock/ lock file exists
# 3 - service not running

# NOTE: checkproc returns LSB compliant status values.
function status() {
    echo -n "Checking for Tomcat ($CATALINA_BASE)"
    if [ -f "/var/run/${NAME}.pid" ]; then
        read kpid < /var/run/${NAME}.pid
        if checkpid $kpid 2>&1; then
            rc_failed 0
        else
            rc_failed 2
        fi
    else
        #don't be dependent on procps
        #pid="$(/usr/bin/pgrep -u tomcat java)"
        pid="$(ps U tomcat o pid,cmd | grep java | grep -v 'grep java')"
        if [ -n "$pid" ]; then
            echo "$0 running (${pid}) but no PID file exists"
            rc_failed 0
        else
            rc_failed 3
        fi
    fi
    rc_status -v
}

# See how we were called.
case "$1" in
    start)
        parseOptions
        start
        ;;
    stop)
        parseOptions
        stop
        ;;
    try-restart)
	## Stop the service and if this succeeds (i.e. the 
	## service was running before), start it again.
        ## Note: try-restart is not (yet) part of LSB (as of 0.7.5)
        $0 status >/dev/null &&  $0 restart
	
	# Remember status and be quiet
	rc_status
	;;
    restart)
        parseOptions
        stop
        sleep 2    
        start
        rc_status
        ;;
    force-reload)
	## Signal the daemon to reload its config. Most daemons
	## do this on signal 1 (SIGHUP).
	## If it does not support it, restart.

echo -n "Reload service Tomcat $($CATALINA_BASE)"
	## if it supports it:
	#killproc -HUP $TOMCAT_BIN
	#touch /var/run/FOO.pid
	#rc_status -v

## Otherwise:
	$0 stop  &&  $0 start
	rc_status
	;;
    reload)
	## Like force-reload, but if daemon does not support
	## signalling, do nothing (!)

# If it supports signalling:
	#echo -n "Reload service FOO"
	#killproc -HUP $TOMCAT_BIN
	#touch /var/run/FOO.pid
	#rc_status -v
	
	## Otherwise if it does not support reload:
	rc_failed 3
	rc_status -v
	;;
    status)
        status
        ;;
    probe)
        ## Optional: Probe for the necessity of a reload,
        ## give out the argument which is required for a reload.
        ;;
    *)
	echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload|probe}"
	exit 1
	;;
esac
rc_exit