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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.concurrent.atomic.AtomicInteger;
import javax.jms.Connection;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.RedeliveryPolicy;
import org.apache.activemq.TestSupport;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.jmx.QueueViewMBean;
import org.apache.activemq.broker.region.policy.AbstractDeadLetterStrategy;
import org.apache.activemq.broker.region.policy.DeadLetterStrategy;
import org.apache.activemq.broker.region.policy.PolicyEntry;
import org.apache.activemq.broker.region.policy.PolicyMap;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.util.Wait;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class AMQ3405Test extends TestSupport {
private static final Logger LOG = LoggerFactory.getLogger(AMQ3405Test.class);
private Connection connection;
private Session session;
private MessageConsumer consumer;
private MessageProducer producer;
private int deliveryMode = DeliveryMode.PERSISTENT;
private Destination dlqDestination;
private MessageConsumer dlqConsumer;
private BrokerService broker;
private int messageCount;
private Destination destination;
private int rollbackCount;
private Session dlqSession;
private final Error[] error = new Error[1];
private boolean topic = true;
private boolean durableSubscriber = true;
public void testTransientTopicMessage() throws Exception {
topic = true;
deliveryMode = DeliveryMode.NON_PERSISTENT;
durableSubscriber = true;
doTest();
}
protected BrokerService createBroker() throws Exception {
BrokerService broker = new BrokerService();
broker.setPersistent(false);
PolicyEntry policy = new PolicyEntry();
policy.setEnableAudit(false);
DeadLetterStrategy defaultDeadLetterStrategy = policy.getDeadLetterStrategy();
if(defaultDeadLetterStrategy!=null) {
defaultDeadLetterStrategy.setProcessNonPersistent(true);
((AbstractDeadLetterStrategy) defaultDeadLetterStrategy).setEnableAudit(false);
}
PolicyMap pMap = new PolicyMap();
pMap.setDefaultEntry(policy);
broker.setDestinationPolicy(pMap);
return broker;
}
protected void doTest() throws Exception {
messageCount = 200;
connection.start();
final QueueViewMBean dlqView = getProxyToDLQ();
ActiveMQConnection amqConnection = (ActiveMQConnection) connection;
rollbackCount = amqConnection.getRedeliveryPolicy().getMaximumRedeliveries() + 1;
LOG.info("Will redeliver messages: " + rollbackCount + " times");
makeConsumer();
makeDlqConsumer();
dlqConsumer.close();
sendMessages();
// now lets receive and rollback N times
int maxRollbacks = messageCount * rollbackCount;
consumer.setMessageListener(new RollbackMessageListener(maxRollbacks, rollbackCount));
// We receive and rollback into the DLQ N times moving the DLQ messages back to their
// original Q to test that they are continually placed back in the DLQ.
for (int i = 0; i < 2; ++i) {
assertTrue("DLQ was not filled as expected", Wait.waitFor(new Wait.Condition() {
@Override
public boolean isSatisified() throws Exception {
return dlqView.getQueueSize() == messageCount;
}
}));
connection.stop();
assertEquals("DLQ should be full now.", messageCount, dlqView.getQueueSize());
String moveTo;
if (topic) {
moveTo = "topic://" + ((Topic) getDestination()).getTopicName();
} else {
moveTo = "queue://" + ((Queue) getDestination()).getQueueName();
}
LOG.debug("Moving " + messageCount + " messages from ActiveMQ.DLQ to " + moveTo);
dlqView.moveMatchingMessagesTo("", moveTo);
assertTrue("DLQ was not emptied as expected", Wait.waitFor(new Wait.Condition() {
@Override
public boolean isSatisified() throws Exception {
return dlqView.getQueueSize() == 0;
}
}));
connection.start();
}
}
protected void makeConsumer() throws JMSException {
Destination destination = getDestination();
LOG.info("Consuming from: " + destination);
if (durableSubscriber) {
consumer = session.createDurableSubscriber((Topic)destination, destination.toString());
} else {
consumer = session.createConsumer(destination);
}
}
protected void makeDlqConsumer() throws JMSException {
dlqDestination = createDlqDestination();
LOG.info("Consuming from dead letter on: " + dlqDestination);
dlqConsumer = dlqSession.createConsumer(dlqDestination);
}
@Override
protected void setUp() throws Exception {
broker = createBroker();
broker.start();
broker.waitUntilStarted();
connection = createConnection();
connection.setClientID(createClientId());
session = connection.createSession(true, Session.AUTO_ACKNOWLEDGE);
connection.start();
dlqSession = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
}
@Override
protected void tearDown() throws Exception {
dlqConsumer.close();
dlqSession.close();
session.close();
if (broker != null) {
broker.stop();
broker.waitUntilStopped();
}
};
@Override
protected ActiveMQConnectionFactory createConnectionFactory()
throws Exception {
ActiveMQConnectionFactory answer = super.createConnectionFactory();
RedeliveryPolicy policy = new RedeliveryPolicy();
policy.setMaximumRedeliveries(3);
policy.setBackOffMultiplier((short) 1);
policy.setRedeliveryDelay(0);
policy.setInitialRedeliveryDelay(0);
policy.setUseExponentialBackOff(false);
answer.setRedeliveryPolicy(policy);
return answer;
}
protected void sendMessages() throws JMSException {
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
producer = session.createProducer(getDestination());
producer.setDeliveryMode(deliveryMode);
LOG.info("Sending " + messageCount + " messages to: " + getDestination());
for (int i = 0; i < messageCount; i++) {
Message message = createMessage(session, i);
producer.send(message);
}
}
protected TextMessage createMessage(Session session, int i) throws JMSException {
return session.createTextMessage(getMessageText(i));
}
protected String getMessageText(int i) {
return "message: " + i;
}
protected Destination createDlqDestination() {
return new ActiveMQQueue("ActiveMQ.DLQ");
}
private QueueViewMBean getProxyToDLQ() throws MalformedObjectNameException, JMSException {
ObjectName queueViewMBeanName = new ObjectName(
"org.apache.activemq:type=Broker,brokerName=localhost," +
"destinationType=Queue,destinationName=ActiveMQ.DLQ");
QueueViewMBean proxy = (QueueViewMBean) broker.getManagementContext()
.newProxyInstance(queueViewMBeanName, QueueViewMBean.class, true);
return proxy;
}
protected Destination getDestination() {
if (destination == null) {
destination = createDestination();
}
return destination;
}
protected String createClientId() {
return toString();
}
class RollbackMessageListener implements MessageListener {
final int maxRollbacks;
final int deliveryCount;
final AtomicInteger rollbacks = new AtomicInteger();
RollbackMessageListener(int c, int delvery) {
maxRollbacks = c;
deliveryCount = delvery;
}
@Override
public void onMessage(Message message) {
try {
int expectedMessageId = rollbacks.get() / deliveryCount;
LOG.info("expecting messageId: " + expectedMessageId);
rollbacks.incrementAndGet();
session.rollback();
} catch (Throwable e) {
LOG.error("unexpected exception:" + e, e);
// propagating assertError to execution task will cause a hang
// at shutdown
if (e instanceof Error) {
error[0] = (Error) e;
} else {
fail("unexpected exception: " + e);
}
}
}
}
}