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Fix for the QueueWorkerPrefetchTest. The VMPendingMessageCursor.isEmpty() was returning true when it had an a message that had been marked dropped due to it being delivered by another subscription. 

git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@573400 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Hiram R. Chirino 2007-09-06 22:19:25 +00:00
parent 222daf2323
commit b732d3d114
4 changed files with 48 additions and 17 deletions
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5
activemq-core/src/main/java/org/apache/activemq/broker/region/MessageReference.java
View File

@ -56,4 +56,9 @@ public interface MessageReference {
*/
boolean isExpired();
/**
* Returns true if this message is dropped.
*/
boolean isDropped();
}

14
activemq-core/src/main/java/org/apache/activemq/broker/region/cursors/VMPendingMessageCursor.java
View File

@ -35,7 +35,19 @@ public class VMPendingMessageCursor extends AbstractPendingMessageCursor {
* @return true if there are no pending messages
*/
public boolean isEmpty() {
return list.isEmpty();
if (list.isEmpty()) {
return true;
} else {
for (Iterator<MessageReference> iterator = list.iterator(); iterator.hasNext();) {
MessageReference node = iterator.next();
if (!node.isDropped()) {
return false;
}
// We can remove dropped references.
iterator.remove();
}
return true;
}
}
/**

4
activemq-core/src/main/java/org/apache/activemq/command/Message.java
View File

@ -689,4 +689,8 @@ public abstract class Message extends BaseCommand implements MarshallAware, Mess
public void setBrokerOutTime(long brokerOutTime) {
this.brokerOutTime = brokerOutTime;
}
public boolean isDropped() {
return false;
}
}

40
activemq-core/src/test/java/org/apache/activemq/bugs/QueueWorkerPrefetchTest.java
View File

@ -29,6 +29,7 @@ import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.ObjectMessage;
import javax.jms.Queue;
import javax.jms.Session;
@ -42,6 +43,7 @@ import org.apache.activemq.broker.BrokerService;
*/
public class QueueWorkerPrefetchTest extends TestCase implements MessageListener
{
private static final int BATCH_SIZE = 10;
private static final long WAIT_TIMEOUT = 1000*10;
/** The connection URL. */
@ -70,6 +72,14 @@ public class QueueWorkerPrefetchTest extends TestCase implements MessageListener
/** Messages sent to the work-item queue. */
private static class WorkMessage implements Serializable
{
private final int id;
public WorkMessage(int id) {
this.id = id;
}
@Override
public String toString() {
return "Work: "+id;
}
}
/**
@ -79,6 +89,7 @@ public class QueueWorkerPrefetchTest extends TestCase implements MessageListener
*/
private static class Worker implements MessageListener
{
/** Counter shared between workers to decided when new work-item messages are created. */
private static AtomicInteger counter = new AtomicInteger(0);
@ -106,24 +117,23 @@ public class QueueWorkerPrefetchTest extends TestCase implements MessageListener
{
try
{
boolean sendMessage = false;
WorkMessage work = (WorkMessage)((ObjectMessage)message).getObject();
// Don't create a new work item for every 1000th message. */
if (counter.incrementAndGet() % 1000 != 0)
{
sendMessage = true;
long c = counter.incrementAndGet();
if (c % 1 == 0) {
System.out.println("Worker now has message count of: " + c);
}
if (sendMessage)
// Don't create a new work item for every BATCH_SIZE message. */
if (c % BATCH_SIZE != 0)
{
// Send new work item to work-item queue.
workItemProducer.send(session.createObjectMessage(
new WorkMessage()));
new WorkMessage(work.id+1)));
}
// Send ack to master.
masterItemProducer.send(session.createObjectMessage(
new WorkMessage()));
masterItemProducer.send(session.createObjectMessage(work));
}
catch (JMSException e)
{
@ -145,7 +155,7 @@ public class QueueWorkerPrefetchTest extends TestCase implements MessageListener
{
long acks = acksReceived.incrementAndGet();
latch.get().countDown();
if (acks % 100 == 0) {
if (acks % 1 == 0) {
System.out.println("Master now has ack count of: " + acksReceived);
}
}
@ -193,10 +203,10 @@ public class QueueWorkerPrefetchTest extends TestCase implements MessageListener
workers[i] = new Worker(connection.createSession(false, Session.AUTO_ACKNOWLEDGE));
}
// Send a message to the work queue, and wait for the 1000 acks from the workers.
// Send a message to the work queue, and wait for the BATCH_SIZE acks from the workers.
acksReceived.set(0);
latch.set(new CountDownLatch(1000));
workItemProducer.send(masterSession.createObjectMessage(new WorkMessage()));
latch.set(new CountDownLatch(BATCH_SIZE));
workItemProducer.send(masterSession.createObjectMessage(new WorkMessage(1)));
if (!latch.get().await(WAIT_TIMEOUT, TimeUnit.MILLISECONDS)) {
fail("First batch only received " + acksReceived + " messages");
@ -209,8 +219,8 @@ public class QueueWorkerPrefetchTest extends TestCase implements MessageListener
// have a large pending queue. Creating a new worker at this point however will
// receive this new message.
acksReceived.set(0);
latch.set(new CountDownLatch(1000));
workItemProducer.send(masterSession.createObjectMessage(new WorkMessage()));
latch.set(new CountDownLatch(BATCH_SIZE));
workItemProducer.send(masterSession.createObjectMessage(new WorkMessage(1)));
if (!latch.get().await(WAIT_TIMEOUT, TimeUnit.MILLISECONDS)) {
fail("Second batch only received " + acksReceived + " messages");