#!/usr/bin/bash
#byLeal
#http://www.eall.com.br/blog

set -e

# /lib/svc/method/ganglia: start and stop the GANGLIA agent

DAEMON='/usr/sbin/gmond'
PIDFILE='/var/run/ganglia/gmond.pids'
GANGLIA_CONFIG_FILE='/etc/ganglia/gmond.conf'
GANGLIA_OPTS="--pid-file=$PIDFILE"

test -x $DAEMON || exit 0

export PATH="${PATH:+$PATH:}/usr/sbin:/sbin"

case "$1" in
  start)
        if [ ! -d /var/run/ganglia ]; then
           echo "Creating PID directory..."
           mkdir /var/run/ganglia && chown ganglia /var/run/ganglia
        fi
        if [ ! -d /var/log/ganglia ]; then
           echo "Creating LOG directory..."
           mkdir /var/log/ganglia && chown ganglia /var/log/ganglia
        fi
        echo -n "Starting ganglia agent: gmond"
	if [ -s $PIDFILE ] && kill -0 $(cat $PIDFILE) >/dev/null 2>&1; then
           echo " apparently already running."
	   exit 0
        fi
        if [ ! -s "$GANGLIA_CONFIG_FILE" ]; then
           echo " missing or empty config file $GANGLIA_CONFIG_FILE"
           exit 1
        fi
        $DAEMON $GANGLIA_OPTS
        echo "."
	;;
  stop)
        if [ -s $PIDFILE ] && kill -0 $(cat $PIDFILE) >/dev/null 2>&1; then
         echo -n "Stopping ganglia agent: ganglia_agentd"
         /usr/bin/kill -TERM `/usr/bin/cat $PIDFILE`
	 rm -f $PIDFILE
         echo "."
        fi
	;;

  restart)
	# set +e
        echo -n "Restarting ganglia agent: "
	if [ -s $PIDFILE ] && kill -0 $(cat $PIDFILE) >/dev/null 2>&1; then
           /usr/bin/kill -TERM `/usr/bin/cat $PIDFILE`
           rm -f $PIDFILE
           echo -n "."
        fi
        if [ ! -s "$GANGLIA_CONFIG_FILE" ]; then
           echo " missing or empty config file $GANGLIA_CONFIG_FILE"
           exit 1
        fi
        sleep 5
        $DAEMON $GANGLIA_OPTS
        if [ $? -ne 0 ]; then
           echo "start failed? $?"
	   rm -f $PIDFILE
	else
           echo "."
        fi
	;;

  *)
	echo "Usage: /lib/svc/method/ganglia {start|stop|restart}"
	exit 1
esac

exit 0