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* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.test.timer.ejb;
import java.io.Serializable;
import java.util.Date;
import javax.ejb.EJBException;
import javax.ejb.MessageDrivenBean;
import javax.ejb.MessageDrivenContext;
import javax.ejb.TimedObject;
import javax.ejb.Timer;
import javax.ejb.TimerService;
import javax.jms.DeliveryMode;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.Queue;
import javax.jms.QueueConnection;
import javax.jms.QueueConnectionFactory;
import javax.jms.QueueSender;
import javax.jms.QueueSession;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.naming.InitialContext;
import org.jboss.logging.Logger;
/** An MDB that obtains the TimerService during the ejbCreate callback. A
* timer is created in onMessage using this TimerService. It delays for 1
* seconds and continues once a second for 10 seconds.
*
* @ejb.bean name="OnCreateTimerMDB"
* description="OnCreateTimerMDB unit test bean"
* destination-type="javax.jms.Queue"
* acknowledge-mode="Auto-acknowledge"
* @ejb.resource-ref res-ref-name="jms/QCF" res-type="javax.jms.QueueConnectionFactory" res-auth="Container"
* @jboss.destination-jndi-name name="queue/C"
* @jboss.resource-ref res-ref-name="jms/QCF" jndi-name="ConnectionFactory"
*
* @author Scott.Stark@jboss.org
* @version $Revision: 102506 $
*/
public class OnCreateTimerMessageBean implements MessageDrivenBean, MessageListener, TimedObject
{
private static Logger log = Logger.getLogger(OnCreateTimerMessageBean.class);
private MessageDrivenContext messageContext = null;
private QueueConnection qc = null;
private InitialContext ctx = null;
private TimerService ts;
static class ReplyInfo implements Serializable
{
private int msgID;
private Queue replyTo;
private Date first;
private Date last;
ReplyInfo(int msgID, Queue replyTo, Date first, Date last)
{
this.msgID = msgID;
this.replyTo = replyTo;
this.first = first;
this.last = last;
}
boolean cancel(Date next)
{
return last.compareTo(next) < 0;
}
long getElapsed()
{
return System.currentTimeMillis() - first.getTime();
}
}
public void setMessageDrivenContext(MessageDrivenContext ctx)
throws EJBException
{
messageContext = ctx;
}
public void ejbCreate()
{
try
{
ctx = new InitialContext();
QueueConnectionFactory qcf = (QueueConnectionFactory) ctx.lookup("ConnectionFactory");
qc = qcf.createQueueConnection();
ts = messageContext.getTimerService();
}
catch (Exception e)
{
log.error("Failed to init timer", e);
throw new EJBException("ejbCreate failed", e);
}
}
public void ejbTimeout(Timer timer)
{
log.info("ejbTimeout(), timer: " + timer);
ReplyInfo info = (ReplyInfo) timer.getInfo();
Date next = timer.getNextTimeout();
if( info.cancel(next) )
{
log.info("Cancelling timer");
timer.cancel();
}
try
{
long elapsed = info.getElapsed();
sendReply("ejbTimeout", info.msgID, elapsed, info.replyTo);
}
catch(Exception e)
{
log.error("Failed to send timer msg", e);
}
}
public void ejbRemove() throws EJBException
{
try
{
qc.close();
log.info("QueueConnection is closed.");
}
catch (JMSException e)
{
log.error("Failed to close connection", e);
}
}
public void onMessage(Message message)
{
try
{
TextMessage msg = (TextMessage) message;
log.info("onMessage() called, msg="+msg);
int msgID = msg.getIntProperty("UNIQUE_ID");
Queue replyTo = (Queue) message.getJMSReplyTo();
sendReply("onMessage", msgID, 0, replyTo);
// Start the reply timer
this.initTimer(msgID, replyTo);
}
catch (Exception e)
{
log.error("onMessage failure", e);
}
}
public void initTimer(int msgID, Queue replyTo)
{
try
{
Date first = new Date(System.currentTimeMillis() + 1000);
Date last = new Date(System.currentTimeMillis() + 11000);
ReplyInfo info = new ReplyInfo(msgID, replyTo, first, last);
Timer timer = ts.createTimer(first, 1000, info);
log.info("Timer created with a timeout: " + first
+ " and with info: " + msgID
+ ", handle: "+timer.getHandle());
}
catch (Exception e)
{
log.info("Failed to init timer", e);
}
return;
}
private void sendReply(String msg, int msgID, long elapsed, Queue dest)
throws JMSException
{
QueueSession qs = null;
QueueSender sender = null;
try
{
qs = qc.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
sender = qs.createSender(dest);
TextMessage reply = qs.createTextMessage();
reply.setText(msg + " : " + msgID);
reply.setIntProperty("UNIQUE_ID", msgID);
reply.setLongProperty("Elapsed", elapsed);
sender.send(reply, DeliveryMode.NON_PERSISTENT, Message.DEFAULT_PRIORITY, 180000);
log.info("Message sent");
}
finally
{
if (sender != null)
{
try
{
sender.close();
log.info("QueueSender Closed");
}
catch (JMSException e)
{
log.error("Failed to close queue sender", e);
}
}
if (qs != null)
{
try
{
qs.close();
log.info("QueueSession Closed");
}
catch (JMSException e)
{
log.error("Failed to close queue session", e);
}
}
}
}
}