#! /bin/sh
### BEGIN INIT INFO
# Provides:          benno-archive
# Required-Start:    $local_fs $remote_fs
# Required-Stop:     $local_fs $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Starts the archiving service of Benno MailArchiv
# Description:       This file should be used to construct scripts to be
#                    placed in /etc/init.d.
### END INIT INFO

# Author: Martin Werthmoeller <mw@lw-systems.de>

# Do NOT "set -e"

# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="Benno Mailarchive Archiving Service"
NAME="benno-archive"
DAEMON=/usr/bin/java
JAR_FILE=bennoarchive.jar
START_JAR="-jar $JAR_FILE"
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME
BENNOCOREDIR=/opt/benno
LOG_CONFIG=/etc/benno/bennoarchive-log4j.xml

# Exit if the package is not installed
[ -f "$BENNOCOREDIR/$JAR_FILE" ] || exit 0

LANG=C; export LANG
LC_CTYPE="en_US.UTF-8"; export LC_CTYPE
DAEMON_ADDRESS='127.0.0.1'
DAEMON_PORT='2555'

# check java version
JAVA7=/usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java
[ -x $JAVA7 ] && DAEMON=$JAVA7
JAVA8=/usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
[ -x $JAVA8 ] && DAEMON=$JAVA8

# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

if [ "$START_ARCHIVE"x != "yes"x ]; then
                echo "$NAME disabled: not starting. To enable it edit /etc/default/$NAME"
                exit 0
fi

# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions

#
# Function that starts the daemon/service
#
do_start()
{
	echo "Starting Benno Archiver ..."
	start-stop-daemon -b --start --chdir $BENNOCOREDIR --chuid $USER \
        --make-pidfile --pidfile $PIDFILE \
        --umask 027 --exec $DAEMON -- \
        -Dlog4j.configuration=$LOG_CONFIG \
        $JAVA_OPTIONS \
        $START_JAR \
        -b $DAEMON_ADDRESS \
        -p $DAEMON_PORT \
        $DAEMON_ARGS 
    return $?
}

#
# Function that stops the daemon/service
#
do_stop()
{
	# Return
	#   0 if daemon has been stopped
	#   1 if daemon was already stopped
	#   2 if daemon could not be stopped
	#   other if a failure occurred
    echo stop | /opt/benno/sbin/benno-mgmt $DAEMON_ADDRESS $DAEMON_PORT 
    kill -0 `cat $PIDFILE` 2>/dev/null
    if [ $? = 0 ];then
        sleep 5
        kill `cat $PIDFILE`
    fi
    return 0
}

#
# Function that sends a SIGHUP to the daemon/service
#
do_reload() {
	#
	# If the daemon can reload its configuration without
	# restarting (for example, when it is sent a SIGHUP),
	# then implement that here.
	#
	start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE --name $NAME
	return 0
}

case "$1" in
  start)
	[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
	do_start
	case "$?" in
		0) log_end_msg 0 ;;
		1) log_end_msg 1 ;;
	esac
	;;
  stop)
	[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
	do_stop
	case "$?" in
		0) log_end_msg 0 ;;
		1) log_end_msg 1 ;;
	esac
	;;
  #reload|force-reload)
	#
	# If do_reload() is not implemented then leave this commented out
	# and leave 'force-reload' as an alias for 'restart'.
	#
	#log_daemon_msg "Reloading $DESC" "$NAME"
	#do_reload
	#log_end_msg $?
	#;;
  restart|force-reload)
	#
	# If the "reload" option is implemented then remove the
	# 'force-reload' alias
	#
	log_daemon_msg "Restarting $DESC" "$NAME"
	do_stop
    sleep 2
	case "$?" in
	  0|1)
		do_start
		case "$?" in
			0) log_end_msg 0 ;;
			1) log_end_msg 1 ;; # Old process is still running
			*) log_end_msg 1 ;; # Failed to start
		esac
		;;
	  *)
	  	# Failed to stop
		log_end_msg 1
		;;
	esac
	;;
  status)
	status_of_proc -p ${PIDFILE} /opt/benno/bennoarchive.jar benno-archive && exit 0 || exit $?
	;;
  *)
	#echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
	echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload|status}" >&2
	exit 3
	;;
esac

