/**
* 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.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.net.Socket;
import java.net.URI;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
import javax.jms.Connection;
import javax.jms.ExceptionListener;
import javax.jms.JMSException;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.command.Command;
import org.apache.activemq.command.LocalTransactionId;
import org.apache.activemq.command.MessageAck;
import org.apache.activemq.command.TransactionInfo;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class FailoverTimeoutTest {
private static final Logger LOG = LoggerFactory.getLogger(FailoverTimeoutTest.class);
private static final String QUEUE_NAME = "test.failovertimeout";
BrokerService bs;
URI tcpUri;
@Before
public void setUp() throws Exception {
bs = new BrokerService();
bs.setUseJmx(false);
bs.addConnector(getTransportUri());
bs.start();
tcpUri = bs.getTransportConnectors().get(0).getConnectUri();
}
@After
public void tearDown() throws Exception {
if (bs != null) {
bs.stop();
}
}
protected String getTransportUri() {
return "tcp://localhost:0";
}
@Test
public void testTimoutDoesNotFailConnectionAttempts() throws Exception {
bs.stop();
long timeout = 1000;
long startTime = System.currentTimeMillis();
ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory(
"failover:(" + tcpUri + ")" +
"?timeout=" + timeout + "&useExponentialBackOff=false" +
"&maxReconnectAttempts=5" + "&initialReconnectDelay=1000");
Connection connection = cf.createConnection();
try {
connection.start();
fail("Should have failed to connect");
} catch (JMSException ex) {
LOG.info("Caught exception on call to start: {}", ex.getMessage());
}
long endTime = System.currentTimeMillis();
long duration = endTime - startTime;
LOG.info("Time spent waiting to connect: {} ms", duration);
assertTrue(duration > 3000);
safeClose(connection);
}
private void safeClose(Connection connection) {
try {
connection.close();
} catch (Exception ignored) {}
}
@Test
public void testTimeout() throws Exception {
long timeout = 1000;
ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory("failover:(" + tcpUri + ")?timeout=" + timeout + "&useExponentialBackOff=false");
Connection connection = cf.createConnection();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
MessageProducer producer = session.createProducer(session
.createQueue(QUEUE_NAME));
TextMessage message = session.createTextMessage("Test message");
producer.send(message);
bs.stop();
try {
producer.send(message);
} catch (JMSException jmse) {
assertEquals("Failover timeout of " + timeout + " ms reached.", jmse.getMessage());
}
bs = new BrokerService();
bs.setUseJmx(false);
bs.addConnector(tcpUri);
bs.start();
bs.waitUntilStarted();
producer.send(message);
bs.stop();
connection.close();
}
@Test
public void testInterleaveAckAndException() throws Exception {
ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory("failover:(" + tcpUri + ")?maxReconnectAttempts=0");
final ActiveMQConnection connection = (ActiveMQConnection) cf.createConnection();
doTestInterleaveAndException(connection, new MessageAck());
safeClose(connection);
}
@Test
public void testInterleaveTxAndException() throws Exception {
ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory("failover:(" + tcpUri + ")?maxReconnectAttempts=0");
final ActiveMQConnection connection = (ActiveMQConnection) cf.createConnection();
TransactionInfo tx = new TransactionInfo();
tx.setConnectionId(connection.getConnectionInfo().getConnectionId());
tx.setTransactionId(new LocalTransactionId(tx.getConnectionId(), 1));
doTestInterleaveAndException(connection, tx);
safeClose(connection);
}
public void doTestInterleaveAndException(final ActiveMQConnection connection, final Command command) throws Exception {
connection.start();
connection.setExceptionListener(new ExceptionListener() {
@Override
public void onException(JMSException exception) {
try {
LOG.info("Deal with exception - invoke op that may block pending outstanding oneway");
// try and invoke on connection as part of handling exception
connection.asyncSendPacket(command);
} catch (Exception e) {
}
}
});
final ExecutorService executorService = Executors.newCachedThreadPool();
final int NUM_TASKS = 200;
final CountDownLatch enqueueOnExecutorDone = new CountDownLatch(NUM_TASKS);
// let a few tasks delay a bit
final AtomicLong sleepMillis = new AtomicLong(1000);
for (int i=0; i < NUM_TASKS; i++) {
executorService.submit(new Runnable() {
@Override
public void run() {
try {
TimeUnit.MILLISECONDS.sleep(Math.max(0, sleepMillis.addAndGet(-50)));
connection.asyncSendPacket(command);
} catch (Exception e) {
} finally {
enqueueOnExecutorDone.countDown();
}
}
});
}
while (enqueueOnExecutorDone.getCount() > (NUM_TASKS - 10)) {
enqueueOnExecutorDone.await(20, TimeUnit.MILLISECONDS);
}
// force IOException
final Socket socket = connection.getTransport().narrow(Socket.class);
socket.close();
executorService.shutdown();
assertTrue("all ops finish", enqueueOnExecutorDone.await(15, TimeUnit.SECONDS));
}
@Test
public void testUpdateUris() throws Exception {
ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory("failover:(" + tcpUri + ")?useExponentialBackOff=false");
ActiveMQConnection connection = (ActiveMQConnection) cf.createConnection();
connection.start();
FailoverTransport failoverTransport = connection.getTransport().narrow(FailoverTransport.class);
URI[] bunchOfUnknownAndOneKnown = new URI[]{
new URI("tcp://unknownHost:" + tcpUri.getPort()),
new URI("tcp://unknownHost2:" + tcpUri.getPort()),
new URI("tcp://localhost:2222")};
failoverTransport.add(false, bunchOfUnknownAndOneKnown);
}
}