/**
* 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 javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.EmbeddedBrokerTestSupport;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.region.Destination;
import org.apache.activemq.command.ActiveMQMessage;
import org.apache.activemq.command.ActiveMQQueue;
import org.junit.Assert;
public class AMQ4116Test extends EmbeddedBrokerTestSupport {
private final String tcpAddr = "tcp://localhost:0";
private String connectionUri;
/**
* In this test, a message is produced and consumed from the test queue.
* Memory usage on the test queue should be reset to 0. The memory that was
* consumed is then sent to a second queue. Memory usage on the original
* test queue should remain 0, but actually increased when the second
* enqueue occurs.
*/
public void testVMTransport() throws Exception {
runTest(connectionFactory);
}
/**
* This is an analog to the previous test, but occurs over TCP and passes.
*/
public void testTCPTransport() throws Exception {
runTest(new ActiveMQConnectionFactory(connectionUri));
}
private void runTest(ConnectionFactory connFactory) throws Exception {
// Verify that test queue is empty and not using any memory.
Destination physicalDestination = broker.getDestination(destination);
Assert.assertEquals(0, physicalDestination.getMemoryUsage().getUsage());
// Enqueue a single message and verify that the test queue is using
// memory.
Connection conn = connFactory.createConnection();
conn.start();
Session session = conn.createSession(true, Session.SESSION_TRANSACTED);
MessageProducer producer = session.createProducer(destination);
producer.send(new ActiveMQMessage());
// Commit, which ensures message is in queue and memory usage updated.
session.commit();
Assert.assertTrue(physicalDestination.getMemoryUsage().getUsage() > 0);
// Consume the message and verify that the test queue is no longer using
// any memory.
MessageConsumer consumer = session.createConsumer(destination);
Message received = consumer.receive();
Assert.assertNotNull(received);
// Commit, which ensures message is removed from queue and memory usage
// updated.
session.commit();
Assert.assertEquals(0, physicalDestination.getMemoryUsage().getUsage());
// Resend the message to a different queue and verify that the original
// test queue is still not using any memory.
ActiveMQQueue secondDestination = new ActiveMQQueue(AMQ4116Test.class + ".second");
MessageProducer secondPproducer = session.createProducer(secondDestination);
secondPproducer.send(received);
// Commit, which ensures message is in queue and memory usage updated.
// NOTE: This assertion fails due to bug.
session.commit();
Assert.assertEquals(0, physicalDestination.getMemoryUsage().getUsage());
conn.stop();
}
/**
* Create an embedded broker that has both TCP and VM connectors.
*/
@Override
protected BrokerService createBroker() throws Exception {
BrokerService broker = super.createBroker();
connectionUri = broker.addConnector(tcpAddr).getPublishableConnectString();
return broker;
}
}