#!/bin/bash
#
### BEGIN INIT INFO
# Provides: d4e-server
# Required-Start: $network $syslog $remote_fs
# Should-Start: $named $syslog $time
# Required-Stop: $network $syslog
# Should-Stop: $named $syslog $time
# Default-Start:  3 5
# Default-Stop:   0 1 2 6
# Short-Description: Dive4Elements server
# Description:    Start Dive4Elements server
### END INIT INFO

RUNAS=flys
START_SCRIPT="/opt/flys/d4e-start"
NAME="$(basename $0)"
SHUTDOWN_WAIT="30"

export FLYSDIR="/opt/flys/current/server"

unset ISBOOT
if [ "${NAME:0:1}" = "S" -o "${NAME:0:1}" = "K" ]; then
    NAME="${NAME:3}"
    ISBOOT="1"
fi

# remove SUSE's rc name
if [ "${NAME:0:2}" = "rc" ]; then
    NAME="${NAME:2}"
fi


export LOGFILE=/var/log/d4e-river.log
export ARGS="-Xmx256m \
     -server \
     -Djava.awt.headless=true \
     -Dflys.datacage.recommendations.development=false \
     -Djava.io.tmpdir=$FLYSDIR/cache \
     -Dflys.backend.enablejmx=true \
     -Dflys.uesk.keep.artifactsdir=false \
     -Dwsplgen.bin.path=$FLYSDIR/bin/wsplgen \
     -Dwsplgen.log.output=false \
     -Dlog4j.configuration=file://$FLYSDIR/conf/log4j.properties \
     -Dartifact.database.dir=$FLYSDIR/conf"
export MAINCLASS=org.dive4elements.artifactdatabase.App

# For SELinux we need to use 'runuser' not 'su'
if [ -x "/sbin/runuser" ]; then
    SU="/sbin/runuser"
else
    SU="/bin/su -m"
fi

# pulled from RHEL4 /etc/rc.d/init.d/functions
function checkpid() {
    local i
    for i in $* ; do
        if [ -d "/proc/${i}" ]; then
            return 0
        fi
    done
    return 1
}

. /etc/rc.status
rc_reset

function start() {
    echo -n "Starting D4E-river server... "
    if [ -f "/var/lock/subsys/${NAME}" ] ; then
        if [ -f "/var/run/${NAME}.pid" ]; then
            read kpid < /var/run/${NAME}.pid
                if checkpid $kpid 2>&1; then
                    echo "$NAME process already running with pid $kpid"
                    rc_failed 0
                    exit
                else
                    echo "lock file found but no process running for pid $kpid, continuing"
                    rc_failed 7
                fi
        fi
    fi

    export D4E_PID="/var/run/${NAME}.pid"
    touch $D4E_PID
    chown $RUNAS $D4E_PID
    touch $LOGFILE
    chown $RUNAS $LOGFILE

    for l in `find "$FLYSDIR/bin/lib" -name \*.jar -print`; do
        CLASSPATH=$CLASSPATH:$l
    done

    export CLASSPATH

    $SU $RUNAS -c "$START_SCRIPT"
    #>> $LOGFILE 2>&1
    RETVAL="$?"
    if [ "$RETVAL" -eq 0 ]; then
        rc_failed 0
        touch /var/lock/subsys/${NAME}
    else
        rc_failed 7
    fi
    rc_status -v
}

function stop() {
    echo -n "Shutting down D4E-River"
    if [ -f "/var/lock/subsys/${NAME}" ]; then
        count="0"
        if [ -f "/var/run/${NAME}.pid" ]; then
            read kpid < /var/run/${NAME}.pid
            kill $kpid
            until [ "$(ps --pid $kpid | grep -c $kpid)" -eq "0" ] || \
                  [ "$count" -gt "$SHUTDOWN_WAIT" ]; do
                if [ "$SHUTDOWN_VERBOSE" = "true" ]; then
                    echo -n -e "\nwaiting for processes $kpid to exit"
                fi
                sleep 1
                let count="${count}+1"
            done
            if [ "$count" -gt "$SHUTDOWN_WAIT" ]; then
                if [ "$SHUTDOWN_VERBOSE" = "true" ]; then
                    echo -n -e "\nkilling processes which didn't stop"
                    echo -n -e "after "
                    echo -n "$SHUTDOWN_WAIT seconds"
                fi
                kill -9 $kpid
            fi
            rc_failed 0
            if [ "$count" -gt "0" ]; then
                echo -n -e "\n"
            fi
        fi
        rm -f /var/lock/subsys/${NAME} /var/run/${NAME}.pid
    fi
    rc_status -v
}




case "$1" in
  start)
      start
    ;;
  stop)
      stop
    ;;
  restart)
    $0 stop && $0 start
    ;;
  *)
    echo "Usage: $0 [start|stop|restart]"
esac