#!/usr/bin/env bash
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you 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.
#
#
# qpidd        Startup script for the Qpid messaging daemon.
#

### BEGIN INIT INFO
# Provides: qpidd
# Required-Start: $local_fs
# Required-Stop: $local_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: start or stop qpidd
# Description: Qpidd is an AMQP broker. It receives, stores, routes and	forwards messages using the AMQP protcol.
### END INIT INFO

# chkconfig: - 85 15
# description: Qpidd is an AMQP broker. It receives, stores, routes and forwards messages using the AMQP protcol.
# processname: qpidd

prog=qpidd
lockfile=/var/lock/subsys/$prog
pidfile=/var/run/qpidd.pid

# The following variables can be overridden in @sysconfdir@/sysconfig/$prog
QPID_BIN=@sbindir@/$prog
QPID_DATA_DIR=/var/lib/qpidd
QPID_CONFIG=@confdir@/qpidd.conf
QPID_HA=@bindir@/qpid-ha
QPID_HA_OPTIONS="--config $QPID_CONFIG"

# Source configuration
test -f @sysconfdir@/sysconfig/$prog && source @sysconfdir@/sysconfig/$prog
source /etc/rc.d/init.d/functions

# Check presence of executables/scripts
for f in $QPID_BIN; do
    test -x $f || { echo "$f not found or not executable"; exit 5; }
done

qpid_ping() {
    # Only do ping test if qpid-ha is installed.
    if test -x  $QPID_HA; then
	$QPID_HA $QPID_HA_OPTIONS ping
    fi
}

RETVAL=0

# Ensure user has sufficient permissions
runuser -s /bin/sh qpidd -c "echo x > /dev/null" 2> /dev/null || RETVAL=4
if [ $RETVAL = 4 ]; then
    echo "user had insufficient privilege";
    exit $RETVAL
fi

do_status() {
    # Check PID file and ping for liveness
    status $prog && $qpid_ping
}

start() {
        echo -n $"Starting Qpid AMQP daemon: "
	daemon --pidfile $pidfile --check $prog --user qpidd $QPID_BIN --config $QPID_CONFIG --data-dir $QPID_DATA_DIR --daemon $QPIDD_OPTIONS
	RETVAL=$?
	echo
	[ $RETVAL = 0 ] && touch $lockfile
	if [ $RETVAL = 0 ]; then
	    touch $pidfile
	    chown qpidd.qpidd $pidfile
            [ -x /sbin/restorecon ] && /sbin/restorecon $pidfile
	    runuser - -s /bin/sh qpidd -c "$QPID_BIN --config $QPID_CONFIG --check > $pidfile"
	fi
	return $RETVAL
}

stop() {
	echo -n $"Stopping Qpid AMQP daemon: "
	killproc -p ${pidfile} $prog
	RETVAL=$?
	echo
	[ $RETVAL = 0 ] && rm -f ${lockfile} ${pidfile}
}

reload() {
	echo 1>&2 $"$0: reload not supported"
	exit 3
}

restart() {
	stop
	start
}

# See how we were called.
case "$1" in
  start|stop|restart|reload)
	$1
	;;
  status)
	do_status
	RETVAL=$?
	;;
  force-reload)
	restart
	;;
  try-restart|condrestart)
	[ -e $lockfile ] && restart || :
	;;
  *)
	echo 1>&2 $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|force-reload}"
	exit 2
esac

exit $RETVAL