#!/bin/sh

# Copyright 2011, Hortonworks Inc.  All rights reserved.
# 
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Remember to keep this in-sync with the definition of 
# GANGLIA_RUNTIME_COMPONENTS_UNPACK_DIR in monrpmInstaller.sh.
HDP_GANGLIA_RUNTIME_COMPONENTS_DIR=/usr/libexec/hdp/ganglia
HDP_GANLIA_GMETAD_STARTER=${HDP_GANGLIA_RUNTIME_COMPONENTS_DIR}/startGmetad.sh
HDP_GANLIA_GMETAD_STOPPER=${HDP_GANGLIA_RUNTIME_COMPONENTS_DIR}/stopGmetad.sh
HDP_GANLIA_GMETAD_CHECKER=${HDP_GANGLIA_RUNTIME_COMPONENTS_DIR}/checkGmetad.sh

RETVAL=0

case "$1" in
   start)
      echo "============================="
      echo "Starting hdp-gmetad..."
      echo "============================="
      [ -f ${HDP_GANLIA_GMETAD_STARTER} ] || exit 1
      eval "${HDP_GANLIA_GMETAD_STARTER}"
      RETVAL=$?
      echo
      [ $RETVAL -eq 0 ] && touch /var/lock/subsys/hdp-gmetad
      ;;

  stop)
      echo "=================================="
      echo "Shutting down hdp-gmetad..."
      echo "=================================="
      [ -f ${HDP_GANLIA_GMETAD_STOPPER} ] || exit 1
      eval "${HDP_GANLIA_GMETAD_STOPPER}"
      RETVAL=$?
      echo
      [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/hdp-gmetad
      ;;

  restart|reload)
   	$0 stop
   	$0 start
   	RETVAL=$?
	;;
  status)
      echo "======================================="
      echo "Checking status of hdp-gmetad..."
      echo "======================================="
      [ -f ${HDP_GANLIA_GMETAD_CHECKER} ] || exit 1
      eval "${HDP_GANLIA_GMETAD_CHECKER}"
      RETVAL=$?
      ;;
  *)
	echo "Usage: $0 {start|stop|restart|status}"
	exit 1
esac

exit $RETVAL