ActiveMQ example source code file (AMQ2580Test.java)

This example ActiveMQ source code file (AMQ2580Test.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

activemqconnectionfactory, activemqconnectionfactory, activemqprefetchpolicy, exception, exception, initializing, jmsexception, jmsexception, messageconsumer, string, string, textmessage, topic_name, topicconnection

The ActiveMQ AMQ2580Test.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.bugs;

import junit.framework.Test;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.ActiveMQPrefetchPolicy;      
import org.apache.activemq.TestSupport;
import org.apache.activemq.broker.BrokerService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.jms.ConnectionFactory;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;
import javax.jms.TopicConnection;
import javax.jms.TopicSession;

public class AMQ2580Test extends TestSupport {

    private static final Logger LOG = LoggerFactory.getLogger(AMQ2580Test.class);

    private static final String TOPIC_NAME = "topicName";
    private static final String CLIENT_ID = "client_id";
    private static final String textOfSelectedMsg = "good_message";

    protected TopicConnection connection;

    private Topic topic;
    private Session session;
    private MessageProducer producer;
    private ConnectionFactory connectionFactory;
    private TopicConnection topicConnection;
    private BrokerService service;

    public static Test suite() {
        return suite(AMQ2580Test.class);
    }

    protected void setUp() throws Exception {
        super.setUp();
        initDurableBroker();
        initConnectionFactory();
        initTopic();
    }

    protected void tearDown() throws Exception {
        shutdownClient();
        service.stop();
        super.tearDown();
    }

    private void initConnection() throws JMSException {
        if (connection == null) {
            LOG.info("Initializing connection");

            connection = (TopicConnection) connectionFactory.createConnection();
            connection.start();
        }
    }

    public void initCombosForTestTopicIsDurableSmokeTest() throws Exception {
        addCombinationValues("defaultPersistenceAdapter", PersistenceAdapterChoice.values());
    }

    public void testTopicIsDurableSmokeTest() throws Exception {

        initClient();
        MessageConsumer consumer = createMessageConsumer();
        LOG.info("Consuming message");
        assertNull(consumer.receive(1));
        shutdownClient();
        consumer.close();

        sendMessages();
        shutdownClient();

        initClient();
        consumer = createMessageConsumer();

        LOG.info("Consuming message");
        TextMessage answer1 = (TextMessage) consumer.receive(1000);
        assertNotNull("we got our message", answer1);

        consumer.close();
    }

    private MessageConsumer createMessageConsumer() throws JMSException {
        LOG.info("creating durable subscriber");
        return session.createDurableSubscriber(topic,
                TOPIC_NAME,
                "name='value'",
                false);
    }

    private void initClient() throws JMSException {
        LOG.info("Initializing client");

        initConnection();
        initSession();
    }

    private void shutdownClient()
            throws JMSException {
        LOG.info("Closing session and connection");
        session.close();
        connection.close();
        session = null;
        connection = null;
    }

    private void sendMessages()
            throws JMSException {
        initConnection();

        initSession();

        LOG.info("Creating producer");
        producer = session.createProducer(topic);

        sendMessageThatFailsSelection();

        sendMessage(textOfSelectedMsg, "value");
    }

    private void initSession() throws JMSException {
        LOG.info("Initializing session");
        session = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
    }

    private void sendMessageThatFailsSelection() throws JMSException {
        for (int i = 0; i < 5; i++) {
            String textOfNotSelectedMsg = "Msg_" + i;
            sendMessage(textOfNotSelectedMsg, "not_value");
            LOG.info("#");
        }
    }

    private void sendMessage(
            String msgText,
            String propertyValue) throws JMSException {
        LOG.info("Creating message: " + msgText);
        TextMessage messageToSelect = session.createTextMessage(msgText);
        messageToSelect.setStringProperty("name", propertyValue);
        LOG.info("Sending message");
        producer.send(messageToSelect);
    }

    protected void initConnectionFactory() throws Exception {
        ActiveMQConnectionFactory activeMqConnectionFactory = createActiveMqConnectionFactory();
        connectionFactory = activeMqConnectionFactory;
    }


    private ActiveMQConnectionFactory createActiveMqConnectionFactory() throws Exception {
        ActiveMQConnectionFactory activeMqConnectionFactory = new ActiveMQConnectionFactory(
                "failover:" + service.getTransportConnectors().get(0).getConnectUri().toString());
        activeMqConnectionFactory.setWatchTopicAdvisories(false);
        ActiveMQPrefetchPolicy prefetchPolicy = new ActiveMQPrefetchPolicy();
        prefetchPolicy.setDurableTopicPrefetch(2);
        prefetchPolicy.setOptimizeDurableTopicPrefetch(2);
        activeMqConnectionFactory.setPrefetchPolicy(prefetchPolicy);
        activeMqConnectionFactory.setClientID(CLIENT_ID);
        return activeMqConnectionFactory;
    }

    private void initDurableBroker() throws Exception {
        service = new BrokerService();
        setDefaultPersistenceAdapter(service);
        service.setDeleteAllMessagesOnStartup(true);
        service.setAdvisorySupport(false);
        service.setTransportConnectorURIs(new String[]{"tcp://localhost:0"});
        service.setPersistent(true);
        service.setUseJmx(false);
        service.start();

    }

    private void initTopic() throws JMSException {
        topicConnection = (TopicConnection) connectionFactory.createConnection();
        TopicSession topicSession = topicConnection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
        topic = topicSession.createTopic(TOPIC_NAME);
    }
}