/**
* 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.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import javax.jms.Connection;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.sql.DataSource;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.Broker;
import org.apache.activemq.broker.BrokerFilter;
import org.apache.activemq.broker.BrokerPlugin;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.ProducerBrokerExchange;
import org.apache.activemq.broker.TransportConnector;
import org.apache.activemq.broker.region.policy.PolicyEntry;
import org.apache.activemq.broker.region.policy.PolicyMap;
import org.apache.activemq.command.ActiveMQDestination;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.network.ConditionalNetworkBridgeFilterFactory;
import org.apache.activemq.network.NetworkConnector;
import org.apache.activemq.store.jdbc.JDBCPersistenceAdapter;
import org.apache.activemq.util.IntrospectionSupport;
import org.apache.activemq.util.Wait;
import org.apache.derby.jdbc.EmbeddedDataSource;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import static org.junit.Assert.*;
/**
* Test creates a broker network with two brokers - producerBroker (with a
* message producer attached) and consumerBroker (with consumer attached)
* <p/>
* Simulates network duplicate message by stopping and restarting the
* consumerBroker after message (with message ID ending in 120) is persisted to
* consumerBrokerstore BUT BEFORE ack sent to the producerBroker over the
* network connection. When the network connection is reestablished the
* producerBroker resends message (with messageID ending in 120).
* <p/>
* Expectation:
* <p/>
* With the following policy entries set, would expect the duplicate message to
* be read from the store and dispatched to the consumer - where the duplicate
* could be detected by consumer.
* <p/>
* PolicyEntry policy = new PolicyEntry(); policy.setQueue(">");
* policy.setEnableAudit(false); policy.setUseCache(false);
* policy.setExpireMessagesPeriod(0);
* <p/>
* <p/>
* Note 1: Network needs to use replaywhenNoConsumers so enabling the
* networkAudit to avoid this scenario is not feasible.
* <p/>
* NOTE 2: Added a custom plugin to the consumerBroker so that the
* consumerBroker shutdown will occur after a message has been persisted to
* consumerBroker store but before an ACK is sent back to ProducerBroker. This
* is just a hack to ensure producerBroker will resend the message after
* shutdown.
*/
@RunWith(value = Parameterized.class)
public class AMQ4952Test {
private static final Logger LOG = LoggerFactory.getLogger(AMQ4952Test.class);
protected static final int MESSAGE_COUNT = 1;
protected BrokerService consumerBroker;
protected BrokerService producerBroker;
protected ActiveMQQueue QUEUE_NAME = new ActiveMQQueue("duptest.store");
private final CountDownLatch stopConsumerBroker = new CountDownLatch(1);
private final CountDownLatch consumerBrokerRestarted = new CountDownLatch(1);
private final CountDownLatch consumerRestartedAndMessageForwarded = new CountDownLatch(1);
private EmbeddedDataSource localDataSource;
@Parameterized.Parameter(0)
public boolean enableCursorAudit;
@Parameterized.Parameters(name = "enableAudit={0}")
public static Iterable<Object[]> getTestParameters() {
return Arrays.asList(new Object[][] { { Boolean.TRUE }, { Boolean.FALSE } });
}
@Test
public void testConsumerBrokerRestart() throws Exception {
Callable consumeMessageTask = new Callable() {
@Override
public Object call() throws Exception {
int receivedMessageCount = 0;
ActiveMQConnectionFactory consumerFactory = new ActiveMQConnectionFactory("failover:(tcp://localhost:2006)?randomize=false&backup=false");
Connection consumerConnection = consumerFactory.createConnection();
try {
consumerConnection.setClientID("consumer");
consumerConnection.start();
Session consumerSession = consumerConnection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
MessageConsumer messageConsumer = consumerSession.createConsumer(QUEUE_NAME);
while (true) {
TextMessage textMsg = (TextMessage) messageConsumer.receive(5000);
if (textMsg == null) {
return receivedMessageCount;
}
receivedMessageCount++;
LOG.info("*** receivedMessageCount {} message has MessageID {} ", receivedMessageCount, textMsg.getJMSMessageID());
// on first delivery ensure the message is pending an
// ack when it is resent from the producer broker
if (textMsg.getJMSMessageID().endsWith("1") && receivedMessageCount == 1) {
LOG.info("Waiting for restart...");
consumerRestartedAndMessageForwarded.await(90, TimeUnit.SECONDS);
}
textMsg.acknowledge();
}
} finally {
consumerConnection.close();
}
}
};
Runnable consumerBrokerResetTask = new Runnable() {
@Override
public void run() {
try {
// wait for signal
stopConsumerBroker.await();
LOG.info("********* STOPPING CONSUMER BROKER");
consumerBroker.stop();
consumerBroker.waitUntilStopped();
LOG.info("***** STARTING CONSUMER BROKER");
// do not delete messages on startup
consumerBroker = createConsumerBroker(false);
LOG.info("***** CONSUMER BROKER STARTED!!");
consumerBrokerRestarted.countDown();
assertTrue("message forwarded on time", Wait.waitFor(new Wait.Condition() {
@Override
public boolean isSatisified() throws Exception {
LOG.info("ProducerBroker totalMessageCount: " + producerBroker.getAdminView().getTotalMessageCount());
return producerBroker.getAdminView().getTotalMessageCount() == 0;
}
}));
consumerRestartedAndMessageForwarded.countDown();
} catch (Exception e) {
LOG.error("Exception when stopping/starting the consumerBroker ", e);
}
}
};
ExecutorService executor = Executors.newFixedThreadPool(2);
// start consumerBroker start/stop task
executor.execute(consumerBrokerResetTask);
// start consuming messages
Future<Integer> numberOfConsumedMessage = executor.submit(consumeMessageTask);
produceMessages();
// Wait for consumer to finish
int totalMessagesConsumed = numberOfConsumedMessage.get();
StringBuffer contents = new StringBuffer();
boolean messageInStore = isMessageInJDBCStore(localDataSource, contents);
LOG.debug("****number of messages received " + totalMessagesConsumed);
assertEquals("number of messages received", 2, totalMessagesConsumed);
assertEquals("messages left in store", true, messageInStore);
assertTrue("message is in dlq: " + contents.toString(), contents.toString().contains("DLQ"));
}
private void produceMessages() throws JMSException {
ActiveMQConnectionFactory producerFactory = new ActiveMQConnectionFactory("failover:(tcp://localhost:2003)?randomize=false&backup=false");
Connection producerConnection = producerFactory.createConnection();
try {
producerConnection.setClientID("producer");
producerConnection.start();
Session producerSession = producerConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
final MessageProducer remoteProducer = producerSession.createProducer(QUEUE_NAME);
int i = 0;
while (MESSAGE_COUNT > i) {
String payload = "test msg " + i;
TextMessage msg = producerSession.createTextMessage(payload);
remoteProducer.send(msg);
i++;
}
} finally {
producerConnection.close();
}
}
@Before
public void setUp() throws Exception {
LOG.debug("Running with enableCursorAudit set to {}", this.enableCursorAudit);
doSetUp();
}
@After
public void tearDown() throws Exception {
doTearDown();
}
protected void doTearDown() throws Exception {
try {
producerBroker.stop();
} catch (Exception ex) {
}
try {
consumerBroker.stop();
} catch (Exception ex) {
}
}
protected void doSetUp() throws Exception {
producerBroker = createProducerBroker();
consumerBroker = createConsumerBroker(true);
}
/**
* Producer broker listens on localhost:2003 networks to consumerBroker -
* localhost:2006
*
* @return
* @throws Exception
*/
protected BrokerService createProducerBroker() throws Exception {
String networkToPorts[] = new String[] { "2006" };
HashMap<String, String> networkProps = new HashMap<String, String>();
networkProps.put("networkTTL", "10");
networkProps.put("conduitSubscriptions", "true");
networkProps.put("decreaseNetworkConsumerPriority", "true");
networkProps.put("dynamicOnly", "true");
BrokerService broker = new BrokerService();
broker.getManagementContext().setCreateConnector(false);
broker.setDeleteAllMessagesOnStartup(true);
broker.setBrokerName("BP");
broker.setAdvisorySupport(false);
// lazy init listener on broker start
TransportConnector transportConnector = new TransportConnector();
transportConnector.setUri(new URI("tcp://localhost:2003"));
List<TransportConnector> transportConnectors = new ArrayList<TransportConnector>();
transportConnectors.add(transportConnector);
broker.setTransportConnectors(transportConnectors);
// network to consumerBroker
if (networkToPorts != null && networkToPorts.length > 0) {
StringBuilder builder = new StringBuilder("static:(failover:(tcp://localhost:2006)?maxReconnectAttempts=0)?useExponentialBackOff=false");
NetworkConnector nc = broker.addNetworkConnector(builder.toString());
if (networkProps != null) {
IntrospectionSupport.setProperties(nc, networkProps);
}
nc.setStaticallyIncludedDestinations(Arrays.<ActiveMQDestination> asList(new ActiveMQQueue[] { QUEUE_NAME }));
}
// Persistence adapter
JDBCPersistenceAdapter jdbc = new JDBCPersistenceAdapter();
EmbeddedDataSource remoteDataSource = new EmbeddedDataSource();
remoteDataSource.setDatabaseName("target/derbyDBRemoteBroker");
remoteDataSource.setCreateDatabase("create");
jdbc.setDataSource(remoteDataSource);
broker.setPersistenceAdapter(jdbc);
// set Policy entries
PolicyEntry policy = new PolicyEntry();
policy.setQueue(">");
policy.setEnableAudit(false);
policy.setUseCache(false);
policy.setExpireMessagesPeriod(0);
// set replay with no consumers
ConditionalNetworkBridgeFilterFactory conditionalNetworkBridgeFilterFactory = new ConditionalNetworkBridgeFilterFactory();
conditionalNetworkBridgeFilterFactory.setReplayWhenNoConsumers(true);
policy.setNetworkBridgeFilterFactory(conditionalNetworkBridgeFilterFactory);
PolicyMap pMap = new PolicyMap();
pMap.setDefaultEntry(policy);
broker.setDestinationPolicy(pMap);
broker.start();
broker.waitUntilStarted();
return broker;
}
/**
* consumerBroker - listens on localhost:2006
*
* @param deleteMessages
* - drop messages when broker instance is created
* @return
* @throws Exception
*/
protected BrokerService createConsumerBroker(boolean deleteMessages) throws Exception {
String scheme = "tcp";
String listenPort = "2006";
BrokerService broker = new BrokerService();
broker.getManagementContext().setCreateConnector(false);
broker.setDeleteAllMessagesOnStartup(deleteMessages);
broker.setBrokerName("BC");
// lazy init listener on broker start
TransportConnector transportConnector = new TransportConnector();
transportConnector.setUri(new URI(scheme + "://localhost:" + listenPort));
List<TransportConnector> transportConnectors = new ArrayList<TransportConnector>();
transportConnectors.add(transportConnector);
broker.setTransportConnectors(transportConnectors);
// policy entries
PolicyEntry policy = new PolicyEntry();
policy.setQueue(">");
policy.setEnableAudit(enableCursorAudit);
policy.setExpireMessagesPeriod(0);
// set replay with no consumers
ConditionalNetworkBridgeFilterFactory conditionalNetworkBridgeFilterFactory = new ConditionalNetworkBridgeFilterFactory();
conditionalNetworkBridgeFilterFactory.setReplayWhenNoConsumers(true);
policy.setNetworkBridgeFilterFactory(conditionalNetworkBridgeFilterFactory);
PolicyMap pMap = new PolicyMap();
pMap.setDefaultEntry(policy);
broker.setDestinationPolicy(pMap);
// Persistence adapter
JDBCPersistenceAdapter localJDBCPersistentAdapter = new JDBCPersistenceAdapter();
EmbeddedDataSource localDataSource = new EmbeddedDataSource();
localDataSource.setDatabaseName("target/derbyDBLocalBroker");
localDataSource.setCreateDatabase("create");
localJDBCPersistentAdapter.setDataSource(localDataSource);
broker.setPersistenceAdapter(localJDBCPersistentAdapter);
if (deleteMessages) {
// no plugin on restart
broker.setPlugins(new BrokerPlugin[] { new MyTestPlugin() });
}
this.localDataSource = localDataSource;
broker.start();
broker.waitUntilStarted();
return broker;
}
/**
* Query JDBC Store to see if messages are left
*
* @param dataSource
* @return
* @throws SQLException
*/
private boolean isMessageInJDBCStore(DataSource dataSource, StringBuffer stringBuffer) throws SQLException {
boolean tableHasData = false;
String query = "select * from ACTIVEMQ_MSGS";
java.sql.Connection conn = dataSource.getConnection();
PreparedStatement s = conn.prepareStatement(query);
ResultSet set = null;
try {
StringBuffer headers = new StringBuffer();
set = s.executeQuery();
ResultSetMetaData metaData = set.getMetaData();
for (int i = 1; i <= metaData.getColumnCount(); i++) {
if (i == 1) {
headers.append("||");
}
headers.append(metaData.getColumnName(i) + "||");
}
LOG.error(headers.toString());
while (set.next()) {
tableHasData = true;
for (int i = 1; i <= metaData.getColumnCount(); i++) {
if (i == 1) {
stringBuffer.append("|");
}
stringBuffer.append(set.getString(i) + "|");
}
LOG.error(stringBuffer.toString());
}
} finally {
try {
set.close();
} catch (Throwable ignore) {
}
try {
s.close();
} catch (Throwable ignore) {
}
conn.close();
}
return tableHasData;
}
/**
* plugin used to ensure consumerbroker is restared before the network
* message from producerBroker is acked
*/
class MyTestPlugin implements BrokerPlugin {
@Override
public Broker installPlugin(Broker broker) throws Exception {
return new MyTestBroker(broker);
}
}
class MyTestBroker extends BrokerFilter {
public MyTestBroker(Broker next) {
super(next);
}
@Override
public void send(ProducerBrokerExchange producerExchange, org.apache.activemq.command.Message messageSend) throws Exception {
super.send(producerExchange, messageSend);
LOG.error("Stopping broker on send: " + messageSend.getMessageId().getProducerSequenceId());
stopConsumerBroker.countDown();
producerExchange.getConnectionContext().setDontSendReponse(true);
}
}
}