ActiveMQ example source code file (XStreamMessageTransformTest.java)

This example ActiveMQ source code file (XStreamMessageTransformTest.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

james, london, messageconsumer, objectmessage, objectmessage, samplepojo, samplepojo, session, should, should, string, textmessage, textmessage, xstreammessagetransformer

The ActiveMQ XStreamMessageTransformTest.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.util.oxm;

import static org.apache.activemq.util.oxm.AbstractXMLMessageTransformer.MessageTransform.ADAPTIVE;

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 org.apache.activemq.ActiveMQMessageConsumer;
import org.apache.activemq.util.xstream.SamplePojo;

import com.thoughtworks.xstream.io.json.JettisonMappedXmlDriver;

public class XStreamMessageTransformTest extends
		AbstractXMLMessageTransformerTest {

	protected AbstractXMLMessageTransformer createTransformer() {
		return new XStreamMessageTransformer();
	}

	public void testStreamDriverTransform() throws Exception {
		XStreamMessageTransformer transformer = (XStreamMessageTransformer) createTransformer();
		transformer.setTransformType(ADAPTIVE);
		transformer.setStreamDriver(new JettisonMappedXmlDriver());
		connection = createConnection(transformer);

		// lets create the consumers
		Session adaptiveSession = connection.createSession(false,
				Session.AUTO_ACKNOWLEDGE);
		Destination destination = adaptiveSession.createTopic(getClass()
				.getName());
		MessageConsumer adaptiveConsumer = adaptiveSession
				.createConsumer(destination);

		Session origSession = connection.createSession(false,
				Session.AUTO_ACKNOWLEDGE);
		MessageConsumer origConsumer = origSession.createConsumer(destination);
		// lets clear the transformer on this consumer so we see the message as
		// it really is
		((ActiveMQMessageConsumer) origConsumer).setTransformer(null);

		// Create producer
		Session producerSession = connection.createSession(false,
				Session.AUTO_ACKNOWLEDGE);
		MessageProducer producer = producerSession.createProducer(destination);

		Message message;
		ObjectMessage objectMessage;
		TextMessage textMessage;
		SamplePojo body;
		Object object;
		String text;

		// Send a text message
		String xmlText = "{\"org.apache.activemq.util.xstream.SamplePojo\":{\"name\":\"James\",\"city\":\"London\"}}";

		TextMessage txtRequest = producerSession.createTextMessage(xmlText);
		producer.send(txtRequest);

		// lets consume it as a text message
		message = adaptiveConsumer.receive(timeout);
		assertNotNull("Should have received a message!", message);
		assertTrue("Should be a TextMessage but was: " + message,
				message instanceof TextMessage);
		textMessage = (TextMessage) message;
		text = textMessage.getText();
		assertTrue("Text should be non-empty!", text != null
				&& text.length() > 0);

		// lets consume it as an object message
		message = origConsumer.receive(timeout);
		assertNotNull("Should have received a message!", message);
		assertTrue("Should be an ObjectMessage but was: " + message,
				message instanceof ObjectMessage);
		objectMessage = (ObjectMessage) message;
		object = objectMessage.getObject();
		assertTrue("object payload of wrong type: " + object,
				object instanceof SamplePojo);
		body = (SamplePojo) object;
		assertEquals("name", "James", body.getName());
		assertEquals("city", "London", body.getCity());

		// Send object message
		ObjectMessage objRequest = producerSession
				.createObjectMessage(new SamplePojo("James", "London"));
		producer.send(objRequest);

		// lets consume it as an object message
		message = adaptiveConsumer.receive(timeout);
		assertNotNull("Should have received a message!", message);
		assertTrue("Should be an ObjectMessage but was: " + message,
				message instanceof ObjectMessage);
		objectMessage = (ObjectMessage) message;
		object = objectMessage.getObject();
		assertTrue("object payload of wrong type: " + object,
				object instanceof SamplePojo);
		body = (SamplePojo) object;
		assertEquals("name", "James", body.getName());
		assertEquals("city", "London", body.getCity());

		// lets consume it as a text message
		message = origConsumer.receive(timeout);
		assertNotNull("Should have received a message!", message);
		assertTrue("Should be a TextMessage but was: " + message,
				message instanceof TextMessage);
		textMessage = (TextMessage) message;
		text = textMessage.getText();
		assertTrue("Text should be non-empty!", text != null
				&& text.length() > 0);
		System.out.println("Received JSON...");
		System.out.println(text);

	}

}