#!/bin/sh
#---------------------------------------------------------------
# Project         : MILLE-XTERM
# Module          : initscripts
# File            : lbagent
# Version         : $Id: lbagent,v 0.0.1 2006/03/13 10:10:10 flepied Exp $
# Author          : Ivan Arsenault
# Created On      : Mon Mar 13 10:10:10 2006
#---------------------------------------------------------------
# chkconfig: 35 96 36
# description: Load balancer monitoring agent for MILLE-XTERM
#---------------------------------------------------------------

# Source function library.
. /etc/rc.d/init.d/functions

PY="/usr/bin/python"
MAIN="main.py"
PROGNAME="mille-xterm-lbagent"
BASEDIR="/usr/share/mille-xterm/lbagent"
LOGFILE="/var/log/${PROGNAME}.log"
CONF="/etc/mille-xterm/lbaconfig.xml"
PID="/var/run/${PROGNAME}.pid"

if [ ! -e $LOGFILE ]; then
    touch $LOGFILE
fi 

ret=1

case $1 in 
    start)
	
	pid_in_memory=`ps auwwwwx | grep "lbagent/main.py" | grep -v grep | awk '{print $2}'`

        if [ -z "$pid_in_memory" ]; then
        	gprintf "Starting mille-xterm load balancer agent: \n"
		$PY $BASEDIR/$MAIN --daemon --logfile=$LOGFILE $CONF 
		sleep 2
		pid_in_memory=`ps auwwwwx | grep "lbagent/main.py" | grep -v grep | awk '{print $2}'`
        	if [ -z "$pid_in_memory" ]; then
			echo 
			gprintf "Mille-xterm load balancer agent did not start.\n"
                	echo_failure
			echo 
		else
                	echo $pid_in_memory > $PID
                	echo_success
                	echo
		fi
		
        else
		echo 
                gprintf "Mille-xterm load balancer agent is already running \n"
                echo_failure
                echo
        fi

	;;

    stop)
	gprintf "Stopping mille-xterm load balancer agent: "
	if [ -r $PID ]; then
	    kill `cat $PID` > /dev/null 2>&1
	    ret=$?
	fi
	if [ $ret = 0 ]; then
	    success "mille-xterm load balancer agent shutdown"
	    rm -f $PID
	else
	    failure "mille-xterm load balancer agent shutdown"
	fi
	echo
	;;

    status)
	status "$PY $BASEDIR/$MAIN $CONF"
	;;

    reload)
	;;

    restart)
	$0 stop
	$0 start
	ret=$?
	;;
    *)
	gprintf "Usage: %s\n" "$(basename $0) {start|stop|restart|status}"
	exit 0
	;;
esac

exit $ret