#!/bin/bash
#
# eZ Find init script for RHEL and CENTOS.
# 
# Usage:
# 
# Set the correct SOLR_HOME value, and copy this file to /etc/init.d
# Symlink to /etc/init.d/solr to /etc/rc3.d/S70solr and /etc/rc5.d/S70solr
#
# Example:
# cp solr /etc/init.d/solr
# cd /etc/init.d && chmod 755 solr
# cd /etc/rc3.d && ln -s ../init.d/solr S70solr
# cd /etc/rc5.d && ln -s ../init.d/solr S70solr
# cd /etc/rc3.d && ln -s ../init.d/solr K70solr
# cd /etc/rc5.d && ln -s ../init.d/solr K70solr

DESC="Solr indexing server"
NAME=solr
SOLR_HOME= # Set solr home here (example: /var/www/ezpublish/extension/ezfind/java)
JAVA_HOME= # Set java home here if java is not available in /usr/bin/java or /usr/local/bin/java

source /etc/rc.d/init.d/functions

for JAVA in "$JAVA_HOME/bin/java" "/usr/bin/java" "/usr/local/bin/java"
do
	if [ -x $JAVA ]
        then
		break
	fi
done
if [ ! -x $JAVA ]
then
	echo "Unable to locate java. Please set JAVA_HOME environment variable."
	exit
fi

RETVAL=0

d_start() {
    CURRENT_DIR=`pwd`
    cd $SOLR_HOME
    daemon --check $NAME --pidfile /var/run/solr.pid nohup $JAVA -jar start.jar > /dev/null 2>&1 &
    RETVAL=$?
    sleep 1 # Sleep 1 second, to make sure java is registered.
    pid=`pidof java`
    echo $pid > /var/run/solr.pid
    cd $CURRENT_DIR
    [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$NAME
    return $RETVAL
}

d_stop() {
    killproc -p /var/run/solr.pid $NAME >> /dev/null 2&>1
    RETVAL=$?
    [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$NAME
    return $RETVAL
}

d_restart() {
    d_stop >> /dev/null 2&>1
    sleep 1
    d_start >> /dev/null 2&>1
}

d_reload() {
    killproc -p /var/run/solr.pid $NAME -HUP 2&>1
    RETVAL=$?
    return $RETVAL
}

d_status() {
    status -p /var/run/solr.pid $NAME >> /dev/null 2&>1
    return $?
}

case "$1" in
  start)
    echo " * Starting $DESC ($NAME)"
    d_status
    if [ $? -eq 0 ]
    then
      echo "   ...already running."
    else
      if d_start
      then
        echo "   ...done."
      else
        echo "   ...failed."
        RETVAL=1
      fi
    fi
    ;;
  stop)
    echo " * Stopping $DESC ($NAME)"
    if d_stop
    then
      echo "   ...done."
    else
      echo "   ...failed."
      RETVAL=1
    fi
    ;;
  restart)
    echo " * Restarting $DESC ($NAME)"
    d_status
    if [ $? -ne 0 ]
    then
      echo "   ...not running."
      RETVAL=1
    else
      if d_restart
      then
        echo " * ...done."
      else
        echo " * ...failed."
        RETVAL=1
      fi
    fi
    ;;
  reload)
    echo " * Reloading $DESC ($NAME): "
    d_reload
    echo "   ...done."
    ;;
  status)
    d_status
    if [ $? -eq 0 ]
    then
      echo " * $DESC ($NAME) is running"
    else
      echo " * $DESC ($NAME) is not running"
    fi
    ;;
  *)
    echo $"Usage: $0 {start|stop|restart|reload|status}"
    RETVAL=1
esac

exit $RETVAL