#!/bin/bash
#
# tomcat6      This shell script takes care of starting and stopping Tomcat
#
# chkconfig: - 80 20
#
### BEGIN INIT INFO
# Provides: tomcat6
# Required-Start: $network $syslog
# Required-Stop: $network $syslog
# Default-Start:
# Default-Stop:
# Description: Release implementation for Servlet 2.4 and JSP 2.0
# Short-Description: start and stop tomcat
### END INIT INFO
#
# - originally written by Henri Gomez, Keith Irwin, and Nicolas Mailhot
# - heavily rewritten by Deepak Bhole and Jason Corley
#

# commented out until the RHEL and FC daemon functions converge
# Source the function library
#if [ -r "/etc/rc.d/init.d/functions" ]; then
    #. /etc/rc.d/init.d/functions
#fi

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

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

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

# 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}"

# Time to wait in seconds, before killing process
SHUTDOWN_WAIT=30

RETVAL="0"

# remove when the RHEL and FC daemon functions converge
# (pulled from /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
}

# remove when the RHEL and FC daemon functions converge
# (pulled from /etc/rc.d/init.d/functions)
function echo_failure() {
    echo -en "\\033[60G"
    echo -n "[  "
    echo -n $"FAILED"
    echo -n "  ]"
    echo -ne "\r"
    return 1
}

# remove when the RHEL and FC daemon functions converge
# (pulled from /etc/rc.d/init.d/functions)
function echo_success() {
    echo -en "\\033[60G"
    echo -n "[  "
    echo -n $"OK"
    echo -n "  ]"
    echo -ne "\r"
    return 0
}

# See how we were called.
function start() {
    echo -n "Starting ${TOMCAT_PROG}: "
    if [ -f "/var/lock/subsys/${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"
                        return -1
                    else
                        echo "lock file found but no process running for"
                        echo "pid $kpid, continuing"
                fi
        fi
    fi
    export CATALINA_PID="/var/run/${NAME}.pid"
    touch $CATALINA_PID
    chown ${TOMCAT_USER}:${TOMCAT_USER} $CATALINA_PID
#    $SU - $TOMCAT_USER -c "$TOMCAT_SCRIPT start" >> $TOMCAT_LOG 2>&1
    $SU - $TOMCAT_USER -c "/usr/local/tomcat/bin/startup.sh" >> $TOMCAT_LOG 2>&1
    RETVAL="$?"
    if [ "$RETVAL" -eq 0 ]; then
        echo_success
        pgrep -u tomcat java > $CATALINA_PID
        touch /var/lock/subsys/${NAME}
    else
        echo_failure
    fi
    echo
    return $RETVAL
}

function status() {
    RETVAL="1"
    if [ -f "/var/run/${NAME}.pid" ]; then
        read kpid < /var/run/${NAME}.pid
        if checkpid $kpid 2>&1; then
            echo "$0 is already running (${kpid})"
            RETVAL="0"
        else
            echo "lock file found but no process running for pid $kpid"
        fi
    else
        pid="$(pgrep -u tomcat java)"
        if [ -n "$pid" ]; then
            echo "$0 running (${pid}) but no PID file exists"
            RETVAL="0"
        else
            echo "$0 is stopped"
        fi
    fi
    return $RETVAL
}

function stop() {
    local STOP_VERBOSE="false"
    echo -n "Stopping $TOMCAT_PROG: "
    if [ -f "/var/lock/subsys/${NAME}" ]; then
#        $SU - $TOMCAT_USER -c "$TOMCAT_SCRIPT stop" >> $TOMCAT_LOG 2>&1
        $SU - $TOMCAT_USER -c "/usr/local/tomcat/bin/shutdown.sh" >> $TOMCAT_LOG 2>&1
        RETVAL="$?"
        if [ "$RETVAL" -eq "0" ]; then
            count="0"
            if [ -f "/var/run/${NAME}.pid" ]; then
                read kpid < /var/run/${NAME}.pid
                until [ "$(ps --pid $kpid | grep -c $kpid)" -eq "0" ] || \
                      [ "$count" -gt "$SHUTDOWN_WAIT" ]; do
                    if [ "$STOP_VERBOSE" = "true" ]; then
                        echo -n -e "\nwaiting for processes $kpid to exit"
                    fi
                    sleep 1
                    let count="${count}+1"
                done
                if [ "$count" -gt "$SHUTDOWN_WAIT" ]; then
                    if [ "$STOP_VERBOSE" = "true" ]; then
                        echo -n -e "\nkilling processes which didn't stop"
                        echo -n -e "after "
                        echo -n "$SHUTDOWN_WAIT seconds"
                    fi
                    kill -9 $kpid
                fi
                echo_success
                if [ "$count" -gt "0" ]; then
                    echo -n -e "\n"
                fi
            fi
            rm -f /var/lock/subsys/$NAME /var/run/$NAME.pid
        else
            echo_failure
        fi
    fi
}


# See how we were called.
case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    restart)
        stop
        sleep 2
        start
        ;;
    condrestart)
        if [ -f "/var/run/${NAME}.pid" ]; then
            stop
            start
        fi
        ;;
    status)
        status
        ;;
    *)
        echo "Usage: $TOMCAT_PROG {start|stop|restart|condrestart|status}"
        exit 1
esac

exit $RETVAL