#!/bin/bash
# chkconfig: 345 22 78
# description: Tomcat/Lucee Control Script

### BEGIN INIT INFO
# Provides:          lucee_ctl
# Required-Start:    $network 
# Required-Stop:     $network 
# Default-Start:     2 3 4 5
# Default-Stop:      0
# Short-Description: Tomcat/Lucee Control Script
# Description:       This is the control script that starts and stops Tomcat which contains a global install of the Lucee servlet.
### END INIT INFO

# switch the subshell to the tomcat directory so that any relative
# paths specified in any configs are interpreted from this directory.
cd /opt/lucee/tomcat/

# set base params for subshell
CATALINA_BASE=/opt/lucee/tomcat; export CATALINA_BASE
CATALINA_HOME=/opt/lucee/tomcat; export CATALINA_HOME
CATALINA_PID=/opt/lucee/tomcat/work/tomcat.pid; export CATALINA_PID
CATALINA_TMPDIR=/opt/lucee/tomcat/temp; export CATALINA_TMPDIR
JRE_HOME=/opt/lucee/jre; export JRE_HOME
JAVA_HOME=/opt/lucee/jre; export JAVA_HOME
TOMCAT_OWNER=root; export TOMCAT_OWNER

checkisrunning() {
	LUCEE_IS_RUNNING=0
	# delete stale PID caused by server reboot
	if [[ -f "$CATALINA_PID" && /proc -nt "$CATALINA_PID" ]]; then
		rm "$CATALINA_PID"
	fi
	if [ -f "$CATALINA_PID" ] ; then
		PIDNUMBER=`cat "$CATALINA_PID"`
		TEST_RUNNING=`ps -p ${PIDNUMBER} | grep ${PIDNUMBER} | grep java`
		if [ ! -z "${TEST_RUNNING}" ]; then 
			# PID is found and running
			LUCEE_IS_RUNNING=1
		fi
	fi
}

start() {
	echo " * Starting Lucee: "
	checkisrunning
	if [ $LUCEE_IS_RUNNING -eq 0 ] ; then
		su -p -s /bin/sh $TOMCAT_OWNER $CATALINA_HOME/bin/startup.sh
		echo -n " * Waiting for confirmation that Lucee is running: "
		COUNT=0
		while [ $LUCEE_IS_RUNNING -eq 0 ] ; do
			COUNT=$((${COUNT}+1))
			if [ $COUNT -gt 10 ] ; then
				break
			fi
			echo -n ". "
			sleep 1
			checkisrunning
		done
		if [ $LUCEE_IS_RUNNING -eq 1 ] ; then
			echo "[DONE]"
			echo ""
			echo "--------------------------------------------"
			echo "It may take a few seconds for Lucee to start"
			echo "responding to requests. This is normal."
			echo "--------------------------------------------"
		else
			echo "[TIMED OUT WITH STATUS UNKNOWN]"
			echo "-------------------------------------------------------------"
			echo "WARNING: Lucee may not be running. Be sure to test your apps!"
			echo "-------------------------------------------------------------"
		fi
	else
		echo "[ALREADY RUNNING]"
	fi
}

stop() {
	echo -n " * Shutting down Lucee: "
	checkisrunning
	if [ $LUCEE_IS_RUNNING -eq 1 ] ; then
		su -p -s /bin/sh $TOMCAT_OWNER $CATALINA_HOME/bin/shutdown.sh &> /dev/null &
		COUNT=0
		while [ $LUCEE_IS_RUNNING -eq 1 ] ; do
			COUNT=$((${COUNT}+1))
			if [ $COUNT -gt 20 ] ; then
				break
			fi
			echo -n ". "
			# pause while we wait to try again
			sleep 1
			checkisrunning
		done
		if [ $LUCEE_IS_RUNNING -eq 1 ] ; then
			echo "[TIMED OUT]"
			echo " * Tomcat/Lucee graceful stop timed out. Forcing shutdown..."
			forcequit
		else
			echo "[DONE]"
		fi
	elif [ ! -f "$CATALINA_PID" ] ; then
		# if the pid file doesn't exist, just say "okay"
		echo "[DONE]"
	else
		echo "[Cannot locate Tomcat PID (`cat $CATALINA_PID`) ]"
		echo "--------------------------------------------------------"
		echo "If the Tomcat process is still running, either kill the"
		echo "PID directly or use the 'killall' command."
		echo "IE: # killall java"
		echo "--------------------------------------------------------"
	fi
}

forcequit() {
	echo -n " * Forcing Lucee Shutdown: "
	checkisrunning
	if [ $LUCEE_IS_RUNNING -eq 1 ] ; then
		# if the PID is still running, force it to die
		# su -p -s /bin/sh $TOMCAT_OWNER $CATALINA_HOME/bin/shutdown.sh -force
		kill -9 $PIDNUMBER
		rm -f "$CATALINA_PID"
		echo "[DONE]"
	else
		# there is no PID, tell the user.
		echo "[FAIL]"
		echo "--------------------------------------------------------"
		echo "No Tomcat PID found. If the Tomcat process is still"
		echo "active under a different PID, please kill it manually."
		echo "--------------------------------------------------------"
	fi
}

status() {
	checkisrunning
	if [ $LUCEE_IS_RUNNING -eq 1 ] ; then
		PIDTIME=`ls -l "$CATALINA_PID" | awk '{print $6, $7, $8}'`
		echo " * Lucee/Tomcat (PID: $PIDNUMBER) is running and has been since $PIDTIME."
	else
		echo " * PID not found."
	fi
}

restart() {
	stop
	# wait up to 5 seconds for confirmation that Lucee has stopped
	checkisrunning
	if [ $LUCEE_IS_RUNNING -eq 1 ] ; then
		echo -n " * Waiting up to 5 seconds for confirmation that Lucee has stopped: "
		COUNT=0
		while [ $LUCEE_IS_RUNNING -eq 1 ] ; do
			echo -n ". "
			COUNT=$(($COUNT+1))
			if [ $COUNT -ge 5 ] ; then
				break
			fi
			sleep 1
			checkisrunning
		done
		if [ $LUCEE_IS_RUNNING -eq 1 ] ; then
			echo "[FAIL]"
			echo "Lucee may not have stopped properly. Check sites after Lucee restart!"
		else
			echo "[DONE]"
		fi
	fi
	start
}

case "$1" in
  start)
		start
		;;
  stop)
		stop
		;;
  forcequit)
		forcequit
		;;
  restart)
		restart
		;;
  status)
		status
		;;
  *)
		echo " * Usage: $0 {start|stop|restart|forcequit|status}"
		exit 1
		;;
esac

exit 0