GlassFish startup script

#!/bin/bash
#
# glassfish:          Startup script for Glassfish Application Server.
#
# chkconfig: 3 80 05
# description:      Startup script for domain1 of Glassfish Application Server.

export GLASSFISH_HOME=/usr/local/glassfish/glassfish
export GLASSFISH_OWNER=glassfish
export JAVA_HOME=/usr/local/java
export PATH=$JAVA_HOME/bin:$PATH

DOMAIN=domain1
NODE=localhost-domain1
DBPORT=1527

ASADMIN=$GLASSFISH_HOME/bin/asadmin
SERVER_INSTANCE_DIR=$GLASSFISH_HOME/nodes/$NODE
LOGFILE="$GLASSFISH_HOME/domains/$DOMAIN/logs/startup.log"

start_instance(){
    instanceName=$1
    echo -n "Starting GlassFish Server Instance '$instanceName': "
    su $GLASSFISH_OWNER -c "$ASADMIN start-local-instance $instanceName" >> $LOGFILE
    echo "done"
}

start_instances(){
    for serverInstance in `ls $SERVER_INSTANCE_DIR`
    do
	if [ 'agent' != $serverInstance ];then
	    start_instance $serverInstance
	fi
    done
}

start_domain(){
    echo -n "Starting GlassFish DAS: "
    su $GLASSFISH_OWNER -c "$ASADMIN start-domain $DOMAIN" >> $LOGFILE	
    echo "done"
}

stop_instance(){
    instanceName=$1
    echo -n "Stopping GlassFish Server Instance '$instanceName': "
    su $GLASSFISH_OWNER -c "$ASADMIN stop-local-instance $instanceName" >> $LOGFILE
    echo "done"
}

stop_instances(){
    for serverInstance in `ls $SERVER_INSTANCE_DIR`
    do
	if [ 'agent' != $serverInstance ];then
	    stop_instance $serverInstance
	fi
    done
}

start_database(){
    echo -n "Starting Derby: "
    su $GLASSFISH_OWNER -c "$ASADMIN start-database --dbport $DBPORT" >> $LOGFILE
    echo "done"
}

stop_database(){
    echo -n "Stopping Derby: "
    su $GLASSFISH_OWNER -c "$ASADMIN stop-database --dbport $DBPORT" >> $LOGFILE
    echo "done"
}

stop_domain(){
    echo -n "Stopping GlassFish DAS: "
    su $GLASSFISH_OWNER -c "$ASADMIN stop-domain $DOMAIN" >> $LOGFILE	
    echo "done"
}

start() {
    start_domain
    sleep 2
    start_database
    start_instances
}

stop() {
    stop_database
    stop_instances
    stop_domain
}

status(){
    echo "GlassFish Domain Status: "
    su $GLASSFISH_OWNER -c "$ASADMIN list-domains"
    RETVAL=$?
    echo "done"
}

case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    restart)
        stop
        start
        ;;
    status)
        status
        RETVAL=$?
        ;;
    *)
        echo $"Usage: glassfish {start|stop|restart|status}"
        exit
esac