/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt 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.messaging.jms.stress;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.XASession;
import javax.transaction.xa.XAResource;
import org.jboss.logging.Logger;
import org.jboss.messaging.core.tx.MessagingXid;
import org.jboss.util.id.GUID;
/**
*
* A receiver that receives messages in a XA transaction
*
* Receives <commitSize> messages then prepares, commits, then
* Receives <rollbackSize> messages then prepares, rollsback until
* a total of <numMessages> messages have been received (committed)
* <numMessages> must be a multiple of <commitSize>
*
* @author <a href="tim.fox@jboss.com">Tim Fox</a>
* @version <tt>$Revision: 2119 $</tt>
*
* $Id: Transactional2PCReceiver.java 2119 2007-02-01 00:10:20Z timfox $
*/
public class Transactional2PCReceiver extends Receiver
{
private static final Logger log = Logger.getLogger(Transactional2PCReceiver.class);
protected int commitSize;
protected int rollbackSize;
protected XAResource xaResource;
class Count
{
int lastCommitted;
int lastReceived;
}
public Transactional2PCReceiver(XASession sess, MessageConsumer cons, int numMessages,
int commitSize, int rollbackSize, boolean isListener) throws Exception
{
super(sess, cons, numMessages, isListener);
this.commitSize = commitSize;
this.rollbackSize = rollbackSize;
this.xaResource = sess.getXAResource();
}
public void run()
{
//Small pause so as not to miss any messages in a topic
try
{
Thread.sleep(1000);
}
catch (InterruptedException e)
{
}
try
{
int iterations = numMessages / commitSize;
MessagingXid xid = null;
xid = new MessagingXid("bq1".getBytes(), 1, new GUID().toString().getBytes());
xaResource.start(xid, XAResource.TMNOFLAGS);
for (int outerCount = 0; outerCount < iterations; outerCount++)
{
for (int innerCount = 0; innerCount < commitSize; innerCount++)
{
Message m = getMessage();
if (m == null)
{
log.error("Message is null");
failed = true;
return;
}
String prodName = m.getStringProperty("PROD_NAME");
Integer msgCount = new Integer(m.getIntProperty("MSG_NUMBER"));
// log.info("got " + prodName + ":" + msgCount);
Count count = (Count)counts.get(prodName);
if (count == null)
{
//First time
if (msgCount.intValue() != 0)
{
log.error("First message from " + prodName + " is not 0, it is " + msgCount);
failed = true;
return;
}
else
{
count = new Count();
counts.put(prodName, count);
}
}
else
{
if (count.lastCommitted != msgCount.intValue() - 1)
{
log.error("Message out of sequence for " + prodName + ", expected " + (count.lastCommitted + 1) + ", actual " + msgCount);
failed = true;
return;
}
}
count.lastCommitted = msgCount.intValue();
count.lastReceived = msgCount.intValue();
if (innerCount == commitSize -1)
{
xaResource.end(xid, XAResource.TMSUCCESS);
xaResource.prepare(xid);
xaResource.commit(xid, false);
//Starting new tx
xid = new MessagingXid("bq1".getBytes(), 1, new GUID().toString().getBytes());
xaResource.start(xid, XAResource.TMNOFLAGS);
}
processingDone();
}
if (outerCount == iterations - 1)
{
break;
}
for (int innerCount = 0; innerCount < rollbackSize; innerCount++)
{
Message m = getMessage();
if (m == null)
{
log.error("Message is null (rollback)");
failed = true;
return;
}
String prodName = m.getStringProperty("PROD_NAME");
Integer msgCount = new Integer(m.getIntProperty("MSG_NUMBER"));
// log.info("got " + prodName + ":" + msgCount);
Count count = (Count)counts.get(prodName);
if (count == null)
{
// First time
if (msgCount.intValue() != 0)
{
log.error("First message from " + prodName + " is not 0, it is " + msgCount);
failed = true;
return;
}
else
{
count = new Count();
count.lastCommitted = -1;
counts.put(prodName, count);
}
}
else
{
if (count.lastReceived != msgCount.intValue() - 1)
{
log.error("Message out of sequence");
failed = true;
return;
}
}
count.lastReceived = msgCount.intValue();
if (innerCount == rollbackSize -1)
{
xaResource.end(xid, XAResource.TMSUCCESS);
xaResource.prepare(xid);
xaResource.rollback(xid);
xid = new MessagingXid("bq1".getBytes(), 1, new GUID().toString().getBytes());
xaResource.start(xid, XAResource.TMNOFLAGS);
}
processingDone();
}
}
xaResource.end(xid, XAResource.TMSUCCESS);
xaResource.prepare(xid);
xaResource.commit(xid, false);
finished();
}
catch (Exception e)
{
log.error("Failed to receive message", e);
failed = true;
}
}
}