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ActiveMQ example source code file (JmsSessionRecoverTest.java)

This example ActiveMQ source code file (JmsSessionRecoverTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - ActiveMQ tags/keywords

activemqqueue, countdownlatch, first, first, got, interruptedexception, interruptedexception, jmsexception, jmsexception, messageconsumer, second, second, string, textmessage, threading, threads

The ActiveMQ JmsSessionRecoverTest.java source code

/**
 * 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;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;

import javax.jms.Connection;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;

import junit.framework.TestCase;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.command.ActiveMQTopic;

/**
 * Testcases to see if Session.recover() work.
 * 
 * 
 */
public class JmsSessionRecoverTest extends TestCase {

    private Connection connection;
    private ActiveMQConnectionFactory factory;
    private Destination dest;

    /**
     * @see junit.framework.TestCase#setUp()
     */
    protected void setUp() throws Exception {
        factory = new ActiveMQConnectionFactory("vm://localhost?broker.persistent=false");
        connection = factory.createConnection();
    }

    /**
     * @see junit.framework.TestCase#tearDown()
     */
    protected void tearDown() throws Exception {
        if (connection != null) {
            connection.close();
            connection = null;
        }
    }

    /**
     * 
     * @throws JMSException
     * @throws InterruptedException
     */
    public void testQueueSynchRecover() throws JMSException, InterruptedException {
        dest = new ActiveMQQueue("Queue-" + System.currentTimeMillis());
        doTestSynchRecover();
    }

    /**
     * 
     * @throws JMSException
     * @throws InterruptedException
     */
    public void testQueueAsynchRecover() throws JMSException, InterruptedException {
        dest = new ActiveMQQueue("Queue-" + System.currentTimeMillis());
        doTestAsynchRecover();
    }

    /**
     * 
     * @throws JMSException
     * @throws InterruptedException
     */
    public void testTopicSynchRecover() throws JMSException, InterruptedException {
        dest = new ActiveMQTopic("Topic-" + System.currentTimeMillis());
        doTestSynchRecover();
    }

    /**
     * 
     * @throws JMSException
     * @throws InterruptedException
     */
    public void testTopicAsynchRecover() throws JMSException, InterruptedException {
        dest = new ActiveMQTopic("Topic-" + System.currentTimeMillis());
        doTestAsynchRecover();
    }

    /**
     * 
     * @throws JMSException
     * @throws InterruptedException
     */
    public void testQueueAsynchRecoverWithAutoAck() throws JMSException, InterruptedException {
        dest = new ActiveMQQueue("Queue-" + System.currentTimeMillis());
        doTestAsynchRecoverWithAutoAck();
    }

    /**
     * 
     * @throws JMSException
     * @throws InterruptedException
     */
    public void testTopicAsynchRecoverWithAutoAck() throws JMSException, InterruptedException {
        dest = new ActiveMQTopic("Topic-" + System.currentTimeMillis());
        doTestAsynchRecoverWithAutoAck();
    }

    /**
     * Test to make sure that a Sync recover works.
     * 
     * @throws JMSException
     */
    public void doTestSynchRecover() throws JMSException {
        Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
        MessageConsumer consumer = session.createConsumer(dest);
        connection.start();

        MessageProducer producer = session.createProducer(dest);
        producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
        producer.send(session.createTextMessage("First"));
        producer.send(session.createTextMessage("Second"));

        TextMessage message = (TextMessage)consumer.receive(1000);
        assertEquals("First", message.getText());
        assertFalse(message.getJMSRedelivered());
        message.acknowledge();

        message = (TextMessage)consumer.receive(1000);
        assertEquals("Second", message.getText());
        assertFalse(message.getJMSRedelivered());

        session.recover();

        message = (TextMessage)consumer.receive(2000);
        assertEquals("Second", message.getText());
        assertTrue(message.getJMSRedelivered());

        message.acknowledge();
    }

    /**
     * Test to make sure that a Async recover works.
     * 
     * @throws JMSException
     * @throws InterruptedException
     */
    public void doTestAsynchRecover() throws JMSException, InterruptedException {

        final Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
        final String errorMessage[] = new String[] {null};
        final CountDownLatch doneCountDownLatch = new CountDownLatch(1);

        MessageConsumer consumer = session.createConsumer(dest);

        MessageProducer producer = session.createProducer(dest);
        producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
        producer.send(session.createTextMessage("First"));
        producer.send(session.createTextMessage("Second"));

        consumer.setMessageListener(new MessageListener() {
            int counter;

            public void onMessage(Message msg) {
                counter++;
                try {
                    TextMessage message = (TextMessage)msg;
                    switch (counter) {
                    case 1:
                        assertEquals("First", message.getText());
                        assertFalse(message.getJMSRedelivered());
                        message.acknowledge();

                        break;
                    case 2:
                        assertEquals("Second", message.getText());
                        assertFalse(message.getJMSRedelivered());
                        session.recover();
                        break;

                    case 3:
                        assertEquals("Second", message.getText());
                        assertTrue(message.getJMSRedelivered());
                        message.acknowledge();
                        doneCountDownLatch.countDown();
                        break;

                    default:
                        errorMessage[0] = "Got too many messages: " + counter;
                        doneCountDownLatch.countDown();
                    }
                } catch (Throwable e) {
                    e.printStackTrace();
                    errorMessage[0] = "Got exception: " + e;
                    doneCountDownLatch.countDown();
                }
            }
        });
        connection.start();

        if (doneCountDownLatch.await(5, TimeUnit.SECONDS)) {
            if (errorMessage[0] != null) {
                fail(errorMessage[0]);
            }
        } else {
            fail("Timeout waiting for async message delivery to complete.");
        }

    }

    /**
     * Test to make sure that a Async recover works when using AUTO_ACKNOWLEDGE.
     * 
     * @throws JMSException
     * @throws InterruptedException
     */
    public void doTestAsynchRecoverWithAutoAck() throws JMSException, InterruptedException {

        final Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        final String errorMessage[] = new String[] {null};
        final CountDownLatch doneCountDownLatch = new CountDownLatch(1);

        MessageConsumer consumer = session.createConsumer(dest);

        MessageProducer producer = session.createProducer(dest);
        producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
        producer.send(session.createTextMessage("First"));
        producer.send(session.createTextMessage("Second"));

        consumer.setMessageListener(new MessageListener() {
            int counter;

            public void onMessage(Message msg) {
                counter++;
                try {
                    TextMessage message = (TextMessage)msg;
                    switch (counter) {
                    case 1:
                        assertEquals("First", message.getText());
                        assertFalse(message.getJMSRedelivered());
                        break;
                    case 2:
                        // This should rollback the delivery of this message..
                        // and re-deliver.
                        assertEquals("Second", message.getText());
                        assertFalse(message.getJMSRedelivered());
                        session.recover();
                        break;

                    case 3:
                        assertEquals("Second", message.getText());
                        assertTrue(message.getJMSRedelivered());
                        doneCountDownLatch.countDown();
                        break;

                    default:
                        errorMessage[0] = "Got too many messages: " + counter;
                        doneCountDownLatch.countDown();
                    }
                } catch (Throwable e) {
                    e.printStackTrace();
                    errorMessage[0] = "Got exception: " + e;
                    doneCountDownLatch.countDown();
                }
            }
        });
        connection.start();

        if (doneCountDownLatch.await(5000, TimeUnit.SECONDS)) {
            if (errorMessage[0] != null) {
                fail(errorMessage[0]);
            }
        } else {
            fail("Timeout waiting for async message delivery to complete.");
        }
    }
}

Other ActiveMQ examples (source code examples)

Here is a short list of links related to this ActiveMQ JmsSessionRecoverTest.java source code file:

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