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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.net.URI;
import java.util.Random;
import java.util.concurrent.CountDownLatch;
import javax.jms.DeliveryMode;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Session;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.ActiveMQMessageConsumer;
import org.apache.activemq.ActiveMQSession;
import org.apache.activemq.broker.BrokerService;
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.ActiveMQQueue;
import org.apache.activemq.store.PersistenceAdapter;
import org.apache.activemq.store.kahadb.KahaDBPersistenceAdapter;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class AMQ3436Test {
protected static final Logger LOG = LoggerFactory.getLogger(AMQ3436Test.class);
private BrokerService broker;
private PersistenceAdapter adapter;
private boolean useCache = true;
private boolean prioritizeMessages = true;
protected PersistenceAdapter createPersistenceAdapter(boolean delete) throws Exception {
KahaDBPersistenceAdapter adapter = new KahaDBPersistenceAdapter();
adapter.setConcurrentStoreAndDispatchQueues(false);
adapter.setConcurrentStoreAndDispatchTopics(false);
adapter.deleteAllMessages();
return adapter;
}
@Before
public void setUp() throws Exception {
broker = new BrokerService();
broker.setBrokerName("priorityTest");
broker.setAdvisorySupport(false);
broker.setUseJmx(false);
adapter = createPersistenceAdapter(true);
broker.setPersistenceAdapter(adapter);
PolicyEntry policy = new PolicyEntry();
policy.setPrioritizedMessages(prioritizeMessages);
policy.setUseCache(useCache);
policy.setProducerFlowControl(false);
PolicyMap policyMap = new PolicyMap();
policyMap.put(new ActiveMQQueue("TEST"), policy);
// do not process expired for one test
PolicyEntry ignoreExpired = new PolicyEntry();
SharedDeadLetterStrategy ignoreExpiredStrategy = new SharedDeadLetterStrategy();
ignoreExpiredStrategy.setProcessExpired(false);
ignoreExpired.setDeadLetterStrategy(ignoreExpiredStrategy);
broker.setDestinationPolicy(policyMap);
broker.start();
broker.waitUntilStarted();
}
protected void tearDown() throws Exception {
broker.stop();
broker.waitUntilStopped();
}
@Test
public void testPriorityWhenConsumerCreatedBeforeProduction() throws Exception {
int messageCount = 200;
URI failoverUri = new URI("vm://priorityTest?jms.prefetchPolicy.all=1");
ActiveMQQueue dest = new ActiveMQQueue("TEST?consumer.dispatchAsync=false");
ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory(failoverUri);
cf.setDispatchAsync(false);
// Create producer
ActiveMQConnection producerConnection = (ActiveMQConnection) cf.createConnection();
producerConnection.setMessagePrioritySupported(true);
producerConnection.start();
final Session producerSession = producerConnection.createSession(true, Session.SESSION_TRANSACTED);
MessageProducer producer = producerSession.createProducer(dest);
ActiveMQMessageConsumer consumer;
// Create consumer on separate connection
ActiveMQConnection consumerConnection = (ActiveMQConnection) cf.createConnection();
consumerConnection.setMessagePrioritySupported(true);
consumerConnection.start();
final ActiveMQSession consumerSession = (ActiveMQSession) consumerConnection.createSession(true,
Session.SESSION_TRANSACTED);
consumer = (ActiveMQMessageConsumer) consumerSession.createConsumer(dest);
// Produce X number of messages with a session commit after each message
Random random = new Random();
for (int i = 0; i < messageCount; ++i) {
Message message = producerSession.createTextMessage("Test message #" + i);
producer.send(message, DeliveryMode.PERSISTENT, random.nextInt(10), 45*1000);
producerSession.commit();
}
producer.close();
// ***************************************************
// If we create the consumer here instead of above, the
// the messages will be consumed in priority order
// ***************************************************
//consumer = (ActiveMQMessageConsumer) consumerSession.createConsumer(dest);
// Consume all of the messages we produce using a listener.
// Don't exit until we get all the messages.
final CountDownLatch latch = new CountDownLatch(messageCount);
final StringBuffer failureMessage = new StringBuffer();
consumer.setMessageListener(new MessageListener() {
int lowestPrioritySeen = 10;
boolean firstMessage = true;
public void onMessage(Message msg) {
try {
int currentPriority = msg.getJMSPriority();
LOG.debug(currentPriority + "<=" + lowestPrioritySeen);
// Ignore the first message priority since it is prefetched
// and is out of order by design
if (firstMessage == true) {
firstMessage = false;
LOG.debug("Ignoring first message since it was prefetched");
} else {
// Verify that we never see a priority higher than the
// lowest
// priority seen
if (lowestPrioritySeen > currentPriority) {
lowestPrioritySeen = currentPriority;
}
if (lowestPrioritySeen < currentPriority) {
failureMessage.append("Incorrect priority seen (Lowest Priority = " + lowestPrioritySeen
+ " Current Priority = " + currentPriority + ")"
+ System.getProperty("line.separator"));
}
}
} catch (JMSException e) {
e.printStackTrace();
} finally {
latch.countDown();
LOG.debug("Messages remaining = " + latch.getCount());
}
}
});
latch.await();
consumer.close();
// Cleanup producer resources
producerSession.close();
producerConnection.stop();
producerConnection.close();
// Cleanup consumer resources
consumerSession.close();
consumerConnection.stop();
consumerConnection.close();
// Report the failure if found
if (failureMessage.length() > 0) {
Assert.fail(failureMessage.toString());
}
}
}