| /** |
| * 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.transport.failover; |
| |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.Vector; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.TimeUnit; |
| |
| import javax.jms.Destination; |
| import javax.jms.JMSException; |
| import javax.jms.MessageProducer; |
| import javax.jms.Queue; |
| import javax.jms.Session; |
| import javax.jms.TextMessage; |
| |
| import org.apache.activemq.ActiveMQConnection; |
| import org.apache.activemq.ActiveMQConnectionFactory; |
| import org.apache.activemq.ActiveMQMessageConsumer; |
| import org.apache.activemq.ActiveMQMessageTransformation; |
| import org.apache.activemq.ActiveMQSession; |
| import org.apache.activemq.broker.BrokerPlugin; |
| import org.apache.activemq.broker.BrokerPluginSupport; |
| import org.apache.activemq.broker.BrokerService; |
| import org.apache.activemq.broker.ConnectionContext; |
| import org.apache.activemq.broker.region.Subscription; |
| import org.apache.activemq.command.ConsumerId; |
| import org.apache.activemq.command.ConsumerInfo; |
| import org.apache.activemq.command.SessionId; |
| import org.apache.activemq.util.Wait; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.junit.After; |
| import org.junit.Test; |
| |
| // see https://issues.apache.org/activemq/browse/AMQ-2573 |
| public class FailoverConsumerUnconsumedTest { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(FailoverConsumerUnconsumedTest.class); |
| private static final String QUEUE_NAME = "FailoverWithUnconsumed"; |
| private static final String TRANSPORT_URI = "tcp://localhost:0"; |
| private String url; |
| final int prefetch = 10; |
| BrokerService broker; |
| |
| @After |
| public void stopBroker() throws Exception { |
| if (broker != null) { |
| broker.stop(); |
| } |
| } |
| |
| public void startBroker(boolean deleteAllMessagesOnStartup) throws Exception { |
| broker = createBroker(deleteAllMessagesOnStartup); |
| broker.start(); |
| } |
| |
| public BrokerService createBroker(boolean deleteAllMessagesOnStartup) throws Exception { |
| return createBroker(deleteAllMessagesOnStartup, TRANSPORT_URI); |
| } |
| |
| public BrokerService createBroker(boolean deleteAllMessagesOnStartup, String bindAddress) throws Exception { |
| broker = new BrokerService(); |
| broker.addConnector(bindAddress); |
| broker.setDeleteAllMessagesOnStartup(deleteAllMessagesOnStartup); |
| |
| this.url = broker.getTransportConnectors().get(0).getConnectUri().toString(); |
| |
| return broker; |
| } |
| |
| @Test |
| public void testFailoverConsumerDups() throws Exception { |
| doTestFailoverConsumerDups(true); |
| } |
| |
| @Test |
| public void testFailoverConsumerDupsNoAdvisoryWatch() throws Exception { |
| doTestFailoverConsumerDups(false); |
| } |
| |
| public void doTestFailoverConsumerDups(final boolean watchTopicAdvisories) throws Exception { |
| |
| final int maxConsumers = 4; |
| broker = createBroker(true); |
| |
| broker.setPlugins(new BrokerPlugin[] { |
| new BrokerPluginSupport() { |
| int consumerCount; |
| |
| // broker is killed on x create consumer |
| @Override |
| public Subscription addConsumer(ConnectionContext context, |
| final ConsumerInfo info) throws Exception { |
| if (++consumerCount == maxConsumers + (watchTopicAdvisories ? 1:0)) { |
| context.setDontSendReponse(true); |
| Executors.newSingleThreadExecutor().execute(new Runnable() { |
| public void run() { |
| LOG.info("Stopping broker on consumer: " + info.getConsumerId()); |
| try { |
| broker.stop(); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| }); |
| } |
| return super.addConsumer(context, info); |
| } |
| } |
| }); |
| broker.start(); |
| |
| ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory("failover:(" + url + ")"); |
| cf.setWatchTopicAdvisories(watchTopicAdvisories); |
| |
| final ActiveMQConnection connection = (ActiveMQConnection) cf.createConnection(); |
| connection.start(); |
| |
| final Session consumerSession = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| final Queue destination = consumerSession.createQueue(QUEUE_NAME + "?jms.consumer.prefetch=" + prefetch); |
| |
| final Vector<TestConsumer> testConsumers = new Vector<TestConsumer>(); |
| for (int i=0; i<maxConsumers -1; i++) { |
| testConsumers.add(new TestConsumer(consumerSession, destination, connection)); |
| } |
| |
| produceMessage(consumerSession, destination, maxConsumers * prefetch); |
| |
| assertTrue("add messages are dispatched", Wait.waitFor(new Wait.Condition() { |
| public boolean isSatisified() throws Exception { |
| int totalUnconsumed = 0; |
| for (TestConsumer testConsumer : testConsumers) { |
| long unconsumed = testConsumer.unconsumedSize(); |
| LOG.info(testConsumer.getConsumerId() + " unconsumed: " + unconsumed); |
| totalUnconsumed += unconsumed; |
| } |
| return totalUnconsumed == (maxConsumers-1) * prefetch; |
| } |
| })); |
| |
| final CountDownLatch commitDoneLatch = new CountDownLatch(1); |
| |
| Executors.newSingleThreadExecutor().execute(new Runnable() { |
| public void run() { |
| try { |
| LOG.info("add last consumer..."); |
| testConsumers.add(new TestConsumer(consumerSession, destination, connection)); |
| commitDoneLatch.countDown(); |
| LOG.info("done add last consumer"); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| }); |
| |
| // will be stopped by the plugin |
| broker.waitUntilStopped(); |
| |
| // verify interrupt |
| assertTrue("add messages dispatched and unconsumed are cleaned up", Wait.waitFor(new Wait.Condition() { |
| public boolean isSatisified() throws Exception { |
| int totalUnconsumed = 0; |
| for (TestConsumer testConsumer : testConsumers) { |
| long unconsumed = testConsumer.unconsumedSize(); |
| LOG.info(testConsumer.getConsumerId() + " unconsumed: " + unconsumed); |
| totalUnconsumed += unconsumed; |
| } |
| return totalUnconsumed == 0; |
| } |
| })); |
| |
| broker = createBroker(false, this.url); |
| broker.start(); |
| |
| assertTrue("consumer added through failover", commitDoneLatch.await(30, TimeUnit.SECONDS)); |
| |
| // each should again get prefetch messages - all unconsumed deliveries should be rolledback |
| assertTrue("after start all messages are re dispatched", Wait.waitFor(new Wait.Condition() { |
| public boolean isSatisified() throws Exception { |
| int totalUnconsumed = 0; |
| for (TestConsumer testConsumer : testConsumers) { |
| long unconsumed = testConsumer.unconsumedSize(); |
| LOG.info(testConsumer.getConsumerId() + " after restart: unconsumed: " + unconsumed); |
| totalUnconsumed += unconsumed; |
| } |
| return totalUnconsumed == (maxConsumers) * prefetch; |
| } |
| })); |
| |
| connection.close(); |
| } |
| |
| private void produceMessage(final Session producerSession, Queue destination, long count) |
| throws JMSException { |
| MessageProducer producer = producerSession.createProducer(destination); |
| for (int i=0; i<count; i++) { |
| TextMessage message = producerSession.createTextMessage("Test message " + i); |
| producer.send(message); |
| } |
| producer.close(); |
| } |
| |
| // allow access to unconsumedMessages |
| class TestConsumer extends ActiveMQMessageConsumer { |
| |
| TestConsumer(Session consumerSession, Destination destination, ActiveMQConnection connection) throws Exception { |
| super((ActiveMQSession) consumerSession, |
| new ConsumerId(new SessionId(connection.getConnectionInfo().getConnectionId(),1), nextGen()), |
| ActiveMQMessageTransformation.transformDestination(destination), null, "", |
| prefetch, -1, false, false, true, null); |
| } |
| |
| public int unconsumedSize() { |
| return unconsumedMessages.size(); |
| } |
| } |
| |
| static long idGen = 100; |
| private static long nextGen() { |
| idGen -=5; |
| return idGen; |
| } |
| } |