Synnefo

#! /bin/sh

### BEGIN INIT INFO

# Provides:          snf-dispatcher

# Required-Start:    $remote_fs $syslog

# Required-Stop:     $remote_fs $syslog

# Default-Start:     2 3 4 5

# Default-Stop:      0 1 6

# Short-Description: Synnefo dispatcher daemon

# Description:       Dispatcher is a daemon for the synnefo middleware logic layer

### END INIT INFO

set -e

# /etc/init.d/snf-dispatcher: start and stop the dispatcher daemon

DAEMON=snf-dispatcher

SNF_DSPTCH_OPTS=''

SNF_DSPTCH_DEFAULTS_FILE=/etc/default/snf-dispatcher

SNF_DSPTCH_CONFIG_FILE=/etc/snf-dispatcher.conf

SNF_DSPTCH_PID_FILE=/var/run/synnefo/snf_dispatcher.pid

test -x $DAEMON || exit 0

. /lib/lsb/init-functions

if [ -s $SNF_DSPTCH_DEFAULTS_FILE ]; then

    . $SNF_DSPTCH_DEFAULTS_FILE

	SNF_DSPTCH_OPTS=$SNF_DSPTCH_OPTS" -p $SNF_DSPTCH_PID_FILE"

    case "x$SNF_DSPTCH_ENABLE" in

	xtrue|xfalse)	;;

	*)		log_failure_msg "Value of SNF_DSPTCH_ENABLE in $SNF_DSPTCH_DEFAULTS_FILE must be either 'true' or 'false';"

			log_failure_msg "not starting dispatcher daemon."

			exit 1

			;;

    esac

fi

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

dispatcher_start() {

    if [ ! -s "$SNF_DSPTCH_CONFIG_FILE" ]; then

        log_failure_msg "missing or empty config file $SNF_DSPTCH_CONFIG_FILE"

        log_end_msg 1

        exit 0

    fi

	if start-stop-daemon --start --chuid $SNF_USER --exec $DAEMON -- $SNF_DSPTCH_OPTS

    then

        rc=0

        sleep 1

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

            log_failure_msg "snf-dispatcher daemon 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 $SNF_DSPTCH_PID_FILE

    fi

} # dispatcher_start

case "$1" in

  start)

	if "$SNF_DSPTCH_ENABLE"; then

	    log_daemon_msg "Starting snf-dispatcher daemon" "snf-dispatcher"

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

		log_progress_msg "apparently already running"

		log_end_msg 0

		exit 0

	    fi

            dispatcher_start

        else

            if [ -s "$SNF_DSPTCH_CONFIG_FILE" ]; then

                [ "$VERBOSE" != no ] && log_warning_msg "snf-dispatcher daemon not enabled in $SNF_DSPTCH_DEFAULTS_FILE, not starting..."

            fi

	fi

	;;

  stop)

	log_daemon_msg "Stopping snf-dispatcher daemon" "snf-dispatcher"

	start-stop-daemon --stop --quiet --oknodo --pidfile $SNF_DSPTCH_PID_FILE

	log_end_msg $?

	rm -f $SNF_DSPTCH_PID_FILE

	;;

  restart)

	set +e

	if $SNF_DSPTCH_ENABLE; then

	    log_daemon_msg "Restarting dispatcher daemon" "dispatcher"

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

		start-stop-daemon --stop --quiet --oknodo --pidfile $SNF_DSPTCH_PID_FILE || true

		sleep 1

	    else

		log_warning_msg "dispatcher daemon not running, attempting to start."

	    	rm -f $SNF_DSPTCH_PID_FILE

	    fi

            dispatcher_start

        else

            if [ -s "$SNF_DSPTCH_CONFIG_FILE" ]; then

                [ "$VERBOSE" != no ] && log_warning_msg "dispatcher daemon not enabled in $SNF_DSPTCH_DEFAULTS_FILE, not starting..."

            fi

	fi

	;;

  status)

	status_of_proc -p $SNF_DSPTCH_PID_FILE "$DAEMON" dispatcher

	exit $?	# notreached due to set -e

	;;

  *)

	echo "Usage: /etc/init.d/snf-dispatcher {start|stop|restart|status}"

	exit 1

esac

exit 0