init.d file for metricsd

metricsd.sh

#!/bin/sh
#
# for use with https://github.com/mojodna/metricsd
# chkconfig: 2345 95 1
# description: Starts Daemon Using metricsd.jar.
# 
# Source function library.
# author: Joyce Chan

. /etc/init.d/functions

JAVA=${JAVA:-/usr/bin/java}
prog=metricsd
jar=metricsd-0.4.2-jar-with-dependencies.jar
config_filename=config.json
log_filename=metricsd.log
RETVAL=0


start () {
    echo -n $"Starting $prog: "
    # start daemon
    daemon +19 "CONFIG=/opt/$prog/$config_filename java -jar /opt/$prog/$jar" > /var/log/$prog/$log_filename   &
    RETVAL=$?
    echo
    if [ $RETVAL = 0 ]; then
        success "$prog started"
    else
        failure "$prog failed to start"
    fi
    
    echo
    return $RETVAL
}

stop () {
    # stop daemon
    echo -n $"Stopping $prog: "

    for i in {1..2}
    do
        kill -9 `ps uax | grep -i "java -jar /opt/$prog/$jar" | head -n 1 | awk '{print $2}'` > /dev/null 2>&1
    done

    RETVAL=$?
    if [ $RETVAL = 0 ]; then
        success "$prog stopped"
    else
        failure "$prog failed to stop"
    fi
    return $RETVAL
}

restart() {
    stop
    start
}

case $1 in
    start)
        start
    ;;
    stop)
        stop
    ;;
    restart)
        stop
        start
    ;;
    *)

    echo $"Usage: $prog {start|stop|restart}"
    exit 3
esac

exit $RETVAL