#!/bin/bash
#
# tomcat        
#
# chkconfig: 2345 90 15 
# description:  Tomcat start script for OpenClinica.
#
#
#
# Change the variables below if they do not mee your environment.

RETVAL=$?
export INIT_NAME="tomcat"
export CATALINA_HOME="/usr/local/tomcat"
export JAVA_HOME="/usr/local/java"
#please note that -#XX:ParallelGCThreads need to be equivalent of number of cores
export JAVA_OPTS="$JAVA_OPTS   -Xmx1280m -XX:+UseParallelGC -XX:ParallelGCThreads=1 -XX:MaxPermSize=180m -XX:+CMSClassUnloadingEnabled"

case "$1" in
 start)
        ps ax | grep "$CATALINA_HOME" | grep "$JAVA_HOME" |grep -v grep |  awk '{printf $1 " "}' | wc | awk '{print $2}' > /tmp/$INIT_NAME_process_count.txt
        read line < /tmp/$INIT_NAME_process_count.txt
        if [ $line -gt 0 ]; then
                echo "Tomcat is already running with a PID of `ps ax | grep "$CATALINA_HOME" | grep "$JAVA_HOME" |  awk '{printf $1 " "}'`"
        else
                if [ -f $CATALINA_HOME/bin/startup.sh ];
                  then
                    echo $"Starting Tomcat"
                    /bin/su tomcat $CATALINA_HOME/bin/startup.sh
                fi
                /etc/init.d/$INIT_NAME status
        fi
        ;;
 stop)
         ps ax | grep "$CATALINA_HOME" | grep "$JAVA_HOME" |grep -v grep |  awk '{printf $1 " "}' | wc | awk '{print $2}' > /tmp/$INIT_NAME_process_count.txt
        read line < /tmp/$INIT_NAME_process_count.txt
        if [ $line -gt 0 ]; then
                if [ -f $CATALINA_HOME/bin/shutdown.sh ];
                  then
                    echo $"Stopping Tomcat"
                    /bin/su tomcat $CATALINA_HOME/bin/shutdown.sh
                fi
                sleep 10
                /etc/init.d/$INIT_NAME status
        else
                echo
                echo "Tomcat was not running"
                echo
        fi
        ;;

 restart)
        /etc/init.d/$INIT_NAME stop
        /etc/init.d/$INIT_NAME start
        ;;

 status) 
         ps ax | grep "$CATALINA_HOME" | grep "$JAVA_HOME" |grep -v grep |  awk '{printf $1 " "}' | wc | awk '{print $2}' > /tmp/$INIT_NAME_process_count.txt
        read line < /tmp/$INIT_NAME_process_count.txt
        if [ $line -gt 0 ]; then
            echo
            echo -n "Tomcat is running with a PID of "` 
        ps ax | grep "$CATALINA_HOME" | grep "$JAVA_HOME" |  awk '{printf $1 " "}'`
            echo -n ""
            echo
        else
            echo
            echo "Tomcat is not running"
            echo
        fi
        ;;
 kill)
        PID=`ps aux | grep "$CATALINA_HOME" | grep "$JAVA_HOME" | awk '{printf $2 " "}'`
        echo
        echo "Killing Tomcat process running on PID $PID"
        echo
        kill $PID
        sleep 10
        echo "Confirming tomcat is killed"
        /etc/init.d/$INIT_NAME status
        ;;
 forcekill)
        PID=`ps ax | grep "$CATALINA_HOME" | grep "$JAVA_HOME" |awk '{printf $1 " "}'`
        echo
        echo "Killing Tomcat process running on PID $PID"
        echo
        kill -9 $PID
        sleep 10
        echo "Confirming tomcat is killed"
        /etc/init.d/$INIT_NAME status
        ;;
 *)
        echo $"Usage: $0 {start|stop|restart|status|kill|forcekill}"
        exit 1
        ;;
esac

exit $RETVAL