#!/bin/bash

### BEGIN INIT INFO

# Provides: cloudstack usage

# Required-Start: $network $local_fs

# Required-Stop: $network $local_fs

# Default-Start: 3 4 5

# Default-Stop: 0 1 2 6

# Short-Description: Start/stop Apache CloudStack Usage Monitor

# Description: This scripts Starts/Stops the Apache CloudStack Usage Monitor

## The CloudStack Usage Monitor is a part of the Apache CloudStack project and is used

## for storing usage statistics from instances.

## JSVC (Java daemonizing) is used for starting and stopping the usage monitor.

### END INIT INFO

# 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.

. /lib/lsb/init-functions

SHORTNAME="cloudstack-usage"

PIDFILE=/var/run/"$SHORTNAME".pid

PROGNAME="CloudStack Usage Monitor"

CLASS="com.cloud.usage.UsageServer"

PROG="jsvc"

DAEMON="/usr/bin/jsvc"

unset OPTIONS

[ -r /etc/default/"$SHORTNAME" ] && source /etc/default/"$SHORTNAME"

# The first existing directory is used for JAVA_HOME (if JAVA_HOME is not defined in $DEFAULT)

JDK_DIRS="/usr/lib/jvm/java-7-openjdk-amd64 /usr/lib/jvm/java-7-openjdk-i386 /usr/lib/jvm/java-6-openjdk /usr/lib/jvm/java-6-openjdk-i386 /usr/lib/jvm/java-6-openjdk-amd64 /usr/lib/jvm/java-6-sun"

for jdir in $JDK_DIRS; do

if [ -r "$jdir/bin/java" -a -z "${JAVA_HOME}" ]; then

JAVA_HOME="$jdir"

fi

done

export JAVA_HOME

UCP=`ls /usr/share/cloudstack-usage/lib/*.jar | tr '\n' ':' | sed s'/.$//'`

PCP=`ls /usr/share/cloudstack-usage/plugins/*.jar 2>/dev/null | tr '\n' ':' | sed s'/.$//'`

# We need to append the JSVC daemon JAR to the classpath

# AgentShell implements the JSVC daemon methods

export CLASSPATH="/usr/share/java/commons-daemon.jar:$UCP:$PCP:/etc/cloudstack/usage"

start() {

if [ -s "$PIDFILE" ] && kill -0 $(cat "$PIDFILE") >/dev/null 2>&1; then

log_daemon_msg "$PROGNAME apparently already running"

log_end_msg 0

exit 0

fi

log_daemon_msg "Starting $PROGNAME" "$SHORTNAME"

if hostname --fqdn >/dev/null 2>&1 ; then

true

else

log_failure_msg "The host name does not resolve properly to an IP address. Cannot start $PROGNAME"

log_end_msg 1

exit 1

fi

if start_daemon -p $PIDFILE $DAEMON -cp "$CLASSPATH" -pidfile "$PIDFILE" -outfile SYSLOG -errfile SYSLOG -Dpid=$$ $CLASS

RETVAL=$?

then

rc=0

sleep 1

if ! kill -0 $(cat "$PIDFILE") >/dev/null 2>&1; then

log_failure_msg "$PROG failed to start"

rc=1

fi

else

rc=1

fi

if [ $rc -eq 0 ]; then

log_end_msg 0

else

log_end_msg 1

rm -f "$PIDFILE"

fi

}

stop() {

log_daemon_msg "Stopping $PROGNAME" "$SHORTNAME"

killproc -p $PIDFILE $DAEMON

log_end_msg $?

rm -f "$PIDFILE"

}

case "$1" in

start)

start

;;

stop)

stop

;;

status)

status_of_proc -p "$PIDFILE" "$PROG" "$SHORTNAME"

RETVAL=$?

;;

restart | force-reload)

stop

sleep 3

start

;;

*)

echo "Usage: $0 {start|stop|restart|force-reload|status}"

RETVAL=3

esac

exit $RETVAL