#!/bin/bash
#
#
# chkconfig: 2345 90 35
# description: eZ Find init script for RHEL, Amazon Linux 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=/home/doc/ezp-440/extension/ezfind/java # Set solr home here (example: /var/www/ezpublish/extension/ezfind/java)
SOLR_HOME=/home/doc/ezp-510/ezpublish_legacy/extension/ezfind/java # Set solr home here (example: /var/www/ezpublish/extension/ezfind/java)
JAVA_HOME=/usr/bin/java # 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/$NAME.pid" nohup $JAVA -jar start.jar > /dev/null 2>&1 &
    cd "$CURRENT_DIR"
    sleep 1 # Sleep 1 second, to make sure java is registered.
    
    # Using pidof is not good, as there might be other java processes as well.
    # Replaced this by calling ps. Still, this is somewhat awkward.
    # 2014-10-10 alex.schuster@ez.no
    #pid=`pidof java`
    pid=`ps ax | grep '[/]usr/bin/java -jar start.jar' | grep -v nohup | awk '{ print $1 }'`
    if [ -z $pid ]
    then
        echo "Error starting $NAME\!"
        return 1
    fi
    echo $pid > "/var/run/$NAME.pid"
    touch "/var/lock/subsys/$NAME"
    return 0
}

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 "$NAME" -HUP > /dev/null 2>&1
    RETVAL=$?
    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