TimerSessionEJB.java

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2017 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://oss.oracle.com/licenses/CDDL+GPL-1.1
 * or LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package com.sun.s1asdev.ejb.timer.sessiontimer;

import javax.ejb.TimedObject;
import javax.ejb.Timer;
import javax.ejb.TimerHandle;
import javax.ejb.TimerService;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
import javax.ejb.EJBContext;
import java.rmi.RemoteException;
import javax.naming.*;

public class TimerSessionEJB implements TimedObject, SessionBean 
{
	private SessionContext context;
    private TimerSingleton singleton;

	public void ejbCreate() throws RemoteException {
	    
	    singleton = (TimerSingleton) 
		context.lookup("java:module/TimerSingleton!com.sun.s1asdev.ejb.timer.sessiontimer.TimerSingleton");

	}

	public void ejbRemove() throws RemoteException {}

	public void setSessionContext(SessionContext sc) {
		context = sc;
	}

	// business method to create a timer
	public TimerHandle createTimer(int ms) {

            try {
                System.out.println("Calling getMessageContext");
                context.getMessageContext();
            } catch(IllegalStateException ise) {
                System.out.println("getMessageContext() successfully threw illegalStateException");
            }

	    TimerService timerService = context.getTimerService();
	    Timer timer = timerService.createTimer(ms, "created timer");
	    return timer.getHandle();
	}

	// timer callback method
	public void ejbTimeout(Timer timer) {
            try {
                System.out.println("Calling getMessageContext");
                context.getMessageContext();
            } catch(IllegalStateException ise) {
                System.out.println("getMessageContext() successfully threw illegalStateException");
            }

	    singleton.setTimeoutReceived();

	}

	public void ejbActivate() {}
	public void ejbPassivate() {}
}