ActiveMQ example source code file (CamelJmsTest.java)

This example ActiveMQ source code file (CamelJmsTest.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

classpathxmlapplicationcontext, classpathxmlapplicationcontext, connection, connection, connectionfactory, connectionfactory, destination, destination, exception, message, messageconsumer, received, session, textmessage

The ActiveMQ CamelJmsTest.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.camel;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.ObjectMessage;
import javax.jms.Session;
import javax.jms.TextMessage;

import junit.framework.Assert;

import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.ProducerTemplate;
import org.apache.camel.impl.DefaultProducerTemplate;
import org.apache.camel.spring.SpringTestSupport;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
 * 
 */
public class CamelJmsTest extends SpringTestSupport {
    
    private static final Logger LOG = LoggerFactory.getLogger(CamelJmsTest.class);
    
    protected String expectedBody = "<hello>world!";

    public void testSendingViaJmsIsReceivedByCamel() throws Exception {
        MockEndpoint result = resolveMandatoryEndpoint("mock:result", MockEndpoint.class);
        result.expectedBodiesReceived(expectedBody);
        result.message(0).header("foo").isEqualTo("bar");

        // lets create a message
        Destination destination = getMandatoryBean(Destination.class, "sendTo");
        ConnectionFactory factory = getMandatoryBean(ConnectionFactory.class, "connectionFactory");

        Connection connection = factory.createConnection();
        connection.start();
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        MessageProducer producer = session.createProducer(destination);

        // now lets send a message
        ObjectMessage message = session.createObjectMessage(expectedBody);
        message.setStringProperty("foo", "bar");
        producer.send(message);

        result.assertIsSatisfied();

        LOG.info("Received message: " + result.getReceivedExchanges());
    }

    public void testConsumingViaJMSReceivesMessageFromCamel() throws Exception {
        // lets create a message
        Destination destination = getMandatoryBean(Destination.class, "consumeFrom");
        ConnectionFactory factory = getMandatoryBean(ConnectionFactory.class, "connectionFactory");
        ProducerTemplate template = getMandatoryBean(ProducerTemplate.class, "camelTemplate");
        assertNotNull("template is valid", template);
        
        Connection connection = factory.createConnection();
        connection.start();
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

        LOG.info("Consuming from: " + destination);
        MessageConsumer consumer = session.createConsumer(destination);

        // now lets send a message
        template.sendBody("seda:consumer", expectedBody);

        Message message = consumer.receive(5000);
        Assert.assertNotNull("Should have received a message from destination: " + destination, message);

        TextMessage textMessage = assertIsInstanceOf(TextMessage.class, message);
        Assert.assertEquals("Message body", expectedBody, textMessage.getText());

        LOG.info("Received message: " + message);
    }

    protected int getExpectedRouteCount() {
        return 0;
    }

    protected ClassPathXmlApplicationContext createApplicationContext() {
        return new ClassPathXmlApplicationContext("org/apache/activemq/camel/spring.xml");
    }
}