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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.activemq.bugs;
import java.util.HashSet;
import java.util.Set;
import java.util.Vector;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import javax.jms.BytesMessage;
import javax.jms.Connection;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;
import junit.framework.TestCase;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerPlugin;
import org.apache.activemq.broker.BrokerPluginSupport;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.ProducerBrokerExchange;
import org.apache.activemq.broker.TransactionBroker;
import org.apache.activemq.broker.jmx.DestinationViewMBean;
import org.apache.activemq.broker.region.policy.PolicyEntry;
import org.apache.activemq.broker.region.policy.PolicyMap;
import org.apache.activemq.command.ActiveMQBytesMessage;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.command.Message;
import org.apache.activemq.command.MessageId;
import org.apache.activemq.transaction.Synchronization;
import org.apache.activemq.util.Wait;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class AMQ4485Test extends TestCase {
private static final Logger LOG = LoggerFactory.getLogger(AMQ4485Test.class);
BrokerService broker;
ActiveMQConnectionFactory factory;
final int messageCount = 20;
int memoryLimit = 40 * 1024;
final ActiveMQQueue destination = new ActiveMQQueue("QUEUE." + this.getClass().getName());
final Vector<Throwable> exceptions = new Vector<Throwable>();
final CountDownLatch slowSendResume = new CountDownLatch(1);
protected void configureBroker(long memoryLimit) throws Exception {
broker.setDeleteAllMessagesOnStartup(true);
broker.setAdvisorySupport(false);
PolicyEntry policy = new PolicyEntry();
policy.setExpireMessagesPeriod(0);
policy.setMemoryLimit(memoryLimit);
policy.setProducerFlowControl(false);
PolicyMap pMap = new PolicyMap();
pMap.setDefaultEntry(policy);
broker.setDestinationPolicy(pMap);
broker.setPlugins(new BrokerPlugin[] {new BrokerPluginSupport() {
@Override
public void send(ProducerBrokerExchange producerExchange, final Message messageSend) throws Exception {
if (messageSend.isInTransaction() && messageSend.getProperty("NUM") != null) {
final Integer num = (Integer) messageSend.getProperty("NUM");
if (true) {
TransactionBroker transactionBroker = (TransactionBroker)broker.getBroker().getAdaptor(TransactionBroker.class);
transactionBroker.getTransaction(producerExchange.getConnectionContext(), messageSend.getTransactionId(), false).addSynchronization(
new Synchronization() {
public void afterCommit() throws Exception {
LOG.error("AfterCommit, NUM:" + num + ", " + messageSend.getMessageId() + ", tx: " + messageSend.getTransactionId());
if (num == 5) {
// we want to add to cursor after usage is exhausted by message 20 and when
// all other messages have been processed
LOG.error("Pausing on latch in afterCommit for: " + num + ", " + messageSend.getMessageId());
slowSendResume.await(20, TimeUnit.SECONDS);
LOG.error("resuming on latch afterCommit for: " + num + ", " + messageSend.getMessageId());
} else if (messageCount + 1 == num) {
LOG.error("releasing latch. " + num + ", " + messageSend.getMessageId());
slowSendResume.countDown();
// for message X, we need to delay so message 5 can setBatch
TimeUnit.SECONDS.sleep(5);
LOG.error("resuming afterCommit for: " + num + ", " + messageSend.getMessageId());
}
}
});
}
}
super.send(producerExchange, messageSend);
}
}
});
}
public void testOutOfOrderTransactionCompletionOnMemoryLimit() throws Exception {
Set<Integer> expected = new HashSet<Integer>();
final Vector<Session> sessionVector = new Vector<Session>();
ExecutorService executorService = Executors.newCachedThreadPool();
for (int i = 1; i <= messageCount; i++) {
sessionVector.add(send(i, 1, true));
expected.add(i);
}
// get parallel commit so that the sync writes are batched
for (int i = 0; i < messageCount; i++) {
final int id = i;
executorService.submit(new Runnable() {
@Override
public void run() {
try {
sessionVector.get(id).commit();
} catch (Exception fail) {
exceptions.add(fail);
}
}
});
}
final DestinationViewMBean queueViewMBean = (DestinationViewMBean)
broker.getManagementContext().newProxyInstance(broker.getAdminView().getQueues()[0], DestinationViewMBean.class, false);
// not sure how many messages will get enqueued
TimeUnit.SECONDS.sleep(3);
if (false)
assertTrue("all " + messageCount + " on the q", Wait.waitFor(new Wait.Condition() {
@Override
public boolean isSatisified() throws Exception {
LOG.info("enqueueCount: " + queueViewMBean.getEnqueueCount());
return messageCount == queueViewMBean.getEnqueueCount();
}
}));
LOG.info("Big send to blow available destination usage before slow send resumes");
send(messageCount + 1, 35*1024, true).commit();
// consume and verify all received
Connection cosumerConnection = factory.createConnection();
cosumerConnection.start();
MessageConsumer consumer = cosumerConnection.createSession(false, Session.AUTO_ACKNOWLEDGE).createConsumer(destination);
for (int i = 1; i <= messageCount + 1; i++) {
BytesMessage bytesMessage = (BytesMessage) consumer.receive(10000);
assertNotNull("Got message: " + i + ", " + expected, bytesMessage);
MessageId mqMessageId = ((ActiveMQBytesMessage) bytesMessage).getMessageId();
LOG.info("got: " + expected + ", " + mqMessageId + ", NUM=" + ((ActiveMQBytesMessage) bytesMessage).getProperty("NUM"));
expected.remove(((ActiveMQBytesMessage) bytesMessage).getProperty("NUM"));
}
}
private Session send(int id, int messageSize, boolean transacted) throws Exception {
Connection connection = factory.createConnection();
connection.start();
Session session = connection.createSession(transacted, transacted ? Session.SESSION_TRANSACTED : Session.AUTO_ACKNOWLEDGE);
MessageProducer producer = session.createProducer(destination);
BytesMessage bytesMessage = session.createBytesMessage();
bytesMessage.writeBytes(new byte[messageSize]);
bytesMessage.setIntProperty("NUM", id);
producer.send(bytesMessage);
LOG.info("Sent:" + bytesMessage.getJMSMessageID() + " session tx: " + ((ActiveMQBytesMessage) bytesMessage).getTransactionId());
return session;
}
protected void setUp() throws Exception {
super.setUp();
broker = new BrokerService();
broker.setBrokerName("thisOne");
configureBroker(memoryLimit);
broker.start();
factory = new ActiveMQConnectionFactory("vm://thisOne?jms.alwaysSyncSend=true");
factory.setWatchTopicAdvisories(false);
}
protected void tearDown() throws Exception {
super.tearDown();
if (broker != null) {
broker.stop();
broker = null;
}
}
}