ActiveMQ example source code file (JmsTopicRedeliverTest.java)

This example ActiveMQ source code file (JmsTopicRedeliverTest.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

created, created, destination, exception, logger, message, message, messageconsumer, session, string, string, test, test, testsupport

The ActiveMQ JmsTopicRedeliverTest.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 javax.jms.Connection;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 
 */
public class JmsTopicRedeliverTest extends TestSupport {

    private static final Logger LOG = LoggerFactory.getLogger(JmsTopicRedeliverTest.class);

    protected Connection connection;
    protected Session session;
    protected Session consumeSession;
    protected MessageConsumer consumer;
    protected MessageProducer producer;
    protected Destination consumerDestination;
    protected Destination producerDestination;
    protected boolean topic = true;
    protected boolean durable;
    protected boolean verbose;
    protected long initRedeliveryDelay;

    protected void setUp() throws Exception {
        super.setUp();

        connectionFactory = createConnectionFactory();
        connection = createConnection();
        initRedeliveryDelay = ((ActiveMQConnection)connection).getRedeliveryPolicy().getInitialRedeliveryDelay();

        if (durable) {
            connection.setClientID(getClass().getName());
        }

        LOG.info("Created connection: " + connection);

        session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
        consumeSession = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);

        LOG.info("Created session: " + session);
        LOG.info("Created consumeSession: " + consumeSession);
        producer = session.createProducer(null);
        // producer.setDeliveryMode(deliveryMode);

        LOG.info("Created producer: " + producer);

        if (topic) {
            consumerDestination = session.createTopic(getConsumerSubject());
            producerDestination = session.createTopic(getProducerSubject());
        } else {
            consumerDestination = session.createQueue(getConsumerSubject());
            producerDestination = session.createQueue(getProducerSubject());
        }

        LOG.info("Created  consumer destination: " + consumerDestination + " of type: " + consumerDestination.getClass());
        LOG.info("Created  producer destination: " + producerDestination + " of type: " + producerDestination.getClass());
        consumer = createConsumer();
        connection.start();

        LOG.info("Created connection: " + connection);
    }

    protected void tearDown() throws Exception {
        if (connection != null) {
            connection.close();
        }
        super.tearDown();
    }

    /**
     * Returns the consumer subject.
     * 
     * @return String - consumer subject
     * @see org.apache.activemq.test.TestSupport#getConsumerSubject()
     */
    protected String getConsumerSubject() {
        return "TEST";
    }

    /**
     * Returns the producer subject.
     * 
     * @return String - producer subject
     * @see org.apache.activemq.test.TestSupport#getProducerSubject()
     */
    protected String getProducerSubject() {
        return "TEST";
    }

    /**
     * Sends and consumes the messages.
     * 
     * @throws Exception
     */
    public void testRecover() throws Exception {
        String text = "TEST";
        Message sendMessage = session.createTextMessage(text);

        if (verbose) {
            LOG.info("About to send a message: " + sendMessage + " with text: " + text);
        }
        producer.send(producerDestination, sendMessage);

        // receive but don't acknowledge
        Message unackMessage = consumer.receive(initRedeliveryDelay + 1000);
        assertNotNull(unackMessage);
        String unackId = unackMessage.getJMSMessageID();
        assertEquals(((TextMessage)unackMessage).getText(), text);
        assertFalse(unackMessage.getJMSRedelivered());
        // assertEquals(unackMessage.getIntProperty("JMSXDeliveryCount"),1);

        // receive then acknowledge
        consumeSession.recover();
        Message ackMessage = consumer.receive(initRedeliveryDelay + 1000);
        assertNotNull(ackMessage);
        ackMessage.acknowledge();
        String ackId = ackMessage.getJMSMessageID();
        assertEquals(((TextMessage)ackMessage).getText(), text);
        assertTrue(ackMessage.getJMSRedelivered());
        // assertEquals(ackMessage.getIntProperty("JMSXDeliveryCount"),2);
        assertEquals(unackId, ackId);
        consumeSession.recover();
        assertNull(consumer.receiveNoWait());
    }

    protected MessageConsumer createConsumer() throws JMSException {
        if (durable) {
            LOG.info("Creating durable consumer");
            return consumeSession.createDurableSubscriber((Topic)consumerDestination, getName());
        }
        return consumeSession.createConsumer(consumerDestination);
    }

}