ActiveMQ example source code file (OXMMessageTransformer.java)

This example ActiveMQ source code file (OXMMessageTransformer.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

abstractmarshaller, abstractmarshaller, abstractxmlmessagetransformer, exception, exception, jmsexception, jmsexception, object, objectmessage, oxmmessagetransformer, string, stringresult, stringresult, textmessage

The ActiveMQ OXMMessageTransformer.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 javax.jms.JMSException;
import javax.jms.ObjectMessage;
import javax.jms.Session;
import javax.jms.TextMessage;

import org.springframework.oxm.AbstractMarshaller;
import org.springframework.oxm.Marshaller;
import org.springframework.oxm.Unmarshaller;
import org.springframework.xml.transform.StringResult;
import org.springframework.xml.transform.StringSource;

/**
 * Transforms object messages to text messages and vice versa using {@link Spring OXM}
 *
 */
public class OXMMessageTransformer extends AbstractXMLMessageTransformer {

	/**
	 * OXM marshaller used to marshall/unmarshall messages
	 */
	private AbstractMarshaller marshaller;
	
	public AbstractMarshaller getMarshaller() {
		return marshaller;
	}

	public void setMarshaller(AbstractMarshaller marshaller) {
		this.marshaller = marshaller;
	}

    /**
     * Marshalls the Object in the {@link ObjectMessage} to a string using XML
     * encoding
     */
	protected String marshall(Session session, ObjectMessage objectMessage)
			throws JMSException {
		StringResult result = new StringResult();
		try {
			marshaller.marshal(objectMessage.getObject(), result);
			return result.toString();
		} catch (Exception e) {
			throw new JMSException(e.getMessage());
		}
	} 
	
    /**
     * Unmarshalls the XML encoded message in the {@link TextMessage} to an
     * Object
     */
	protected Object unmarshall(Session session, TextMessage textMessage)
			throws JMSException {
		try {
			return marshaller.unmarshal(new StringSource(textMessage.getText()));
		} catch (Exception e) {
			throw new JMSException(e.getMessage());
		}
	}

}