/**
* 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 static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.util.Enumeration;
import java.util.concurrent.TimeUnit;
import javax.jms.Connection;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.QueueBrowser;
import javax.jms.Session;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.jmx.QueueViewMBean;
import org.apache.activemq.broker.region.policy.PolicyEntry;
import org.apache.activemq.broker.region.policy.PolicyMap;
import org.apache.activemq.broker.region.policy.SharedDeadLetterStrategy;
import org.apache.activemq.command.ActiveMQDestination;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.leveldb.LevelDBStore;
import org.apache.activemq.util.IOHelper;
import org.apache.activemq.util.Wait;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Once the wire format is completed we can test against real persistence storage.
*/
public class AMQ6059Test {
private static final Logger LOG = LoggerFactory.getLogger(AMQ6059Test.class);
private BrokerService broker;
@Before
public void setUp() throws Exception {
broker = createBroker();
broker.start();
broker.waitUntilStarted();
}
@After
public void tearDown() throws Exception {
if (broker != null) {
broker.stop();
broker.waitUntilStopped();
}
}
@Test
public void testDLQRecovery() throws Exception {
sendMessage(new ActiveMQQueue("QName"));
TimeUnit.SECONDS.sleep(3);
LOG.info("### Check for expired message moving to DLQ.");
Queue dlqQueue = (Queue) createDlqDestination();
verifyIsDlq(dlqQueue);
final QueueViewMBean queueViewMBean = getProxyToQueue(dlqQueue.getQueueName());
assertTrue("The message expired", Wait.waitFor(new Wait.Condition() {
@Override
public boolean isSatisified() throws Exception {
LOG.info("DLQ stats: Enqueues {}, Dispatches {}, Expired {}, Inflight {}",
new Object[] { queueViewMBean.getEnqueueCount(),
queueViewMBean.getDispatchCount(),
queueViewMBean.getExpiredCount(),
queueViewMBean.getInFlightCount()});
return queueViewMBean.getEnqueueCount() == 1;
}
}));
verifyMessageIsRecovered(dlqQueue);
restartBroker();
verifyIsDlq(dlqQueue);
verifyMessageIsRecovered(dlqQueue);
}
protected BrokerService createBroker() throws Exception {
return createBrokerWithDLQ(true);
}
private BrokerService createBrokerWithDLQ(boolean purge) throws Exception {
BrokerService broker = new BrokerService();
ActiveMQQueue dlq = new ActiveMQQueue("ActiveMQ.DLQ?isDLQ=true");
broker.setDestinations(new ActiveMQDestination[]{dlq});
PolicyMap pMap = new PolicyMap();
SharedDeadLetterStrategy sharedDLQStrategy = new SharedDeadLetterStrategy();
sharedDLQStrategy.setProcessNonPersistent(true);
sharedDLQStrategy.setProcessExpired(true);
sharedDLQStrategy.setDeadLetterQueue(dlq);
sharedDLQStrategy.setExpiration(10000);
PolicyEntry defaultPolicy = new PolicyEntry();
defaultPolicy.setDeadLetterStrategy(sharedDLQStrategy);
defaultPolicy.setExpireMessagesPeriod(2000);
defaultPolicy.setUseCache(false);
pMap.put(new ActiveMQQueue(">"), defaultPolicy);
broker.setDestinationPolicy(pMap);
if (purge) {
broker.setDeleteAllMessagesOnStartup(true);
}
return broker;
}
private void restartBroker() throws Exception {
broker.stop();
broker.waitUntilStopped();
broker = createBrokerWithDLQ(false);
broker.start();
broker.waitUntilStarted();
}
private void verifyMessageIsRecovered(final Queue dlqQueue) throws Exception, JMSException {
Connection connection = createConnection();
connection.start();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
QueueBrowser browser = session.createBrowser(dlqQueue);
Enumeration<?> elements = browser.getEnumeration();
assertTrue(elements.hasMoreElements());
Message browsed = (Message) elements.nextElement();
assertNotNull("Recover message after broker restarts", browsed);
}
private void sendMessage(Destination destination) throws Exception {
Connection connection = createConnection();
connection.start();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
MessageProducer producer = session.createProducer(destination);
producer.send(destination, session.createTextMessage("DLQ message"), DeliveryMode.PERSISTENT, 4, 1000);
connection.stop();
LOG.info("### Send message that will expire.");
}
private Connection createConnection() throws Exception {
ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(broker.getVmConnectorURI());
return factory.createConnection();
}
private Destination createDlqDestination() {
return new ActiveMQQueue("ActiveMQ.DLQ");
}
private void verifyIsDlq(Queue dlqQ) throws Exception {
final QueueViewMBean queueViewMBean = getProxyToQueue(dlqQ.getQueueName());
assertTrue("is dlq", queueViewMBean.isDLQ());
}
private QueueViewMBean getProxyToQueue(String name) throws MalformedObjectNameException, JMSException {
ObjectName queueViewMBeanName = new ObjectName(
"org.apache.activemq:type=Broker,brokerName=localhost,destinationType=Queue,destinationName=" + name);
QueueViewMBean proxy = (QueueViewMBean) broker.getManagementContext().newProxyInstance(
queueViewMBeanName, QueueViewMBean.class, true);
return proxy;
}
}