messageconverterfactory.java

实现了Jms的服务器源码,支持多种适配器,DB,FTP,支持多种数据库

/**
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided
 * that the following conditions are met:
 *
 * 1. Redistributions of source code must retain copyright
 *    statements and notices.  Redistributions must also contain a
 *    copy of this document.
 *
 * 2. Redistributions in binary form must reproduce the
 *    above copyright notice, this list of conditions and the
 *    following disclaimer in the documentation and/or other
 *    materials provided with the distribution.
 *
 * 3. The name "Exolab" must not be used to endorse or promote
 *    products derived from this Software without prior written
 *    permission of Exoffice Technologies.  For written permission,
 *    please contact [e-mail].
 *
 * 4. Products derived from this Software may not be called "Exolab"
 *    nor may "Exolab" appear in their names without prior written
 *    permission of Exoffice Technologies. Exolab is a registered
 *    trademark of Exoffice Technologies.
 *
 * 5. Due credit should be given to the Exolab Project
 *    (http://www.exolab.org/).
 *
 * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Copyright 2003 (C) Exoffice Technologies Inc. All Rights Reserved.
 *
 * $Id: MessageConverterFactory.java,v 1.1 2004/01/01 13:45:03 tanderson Exp $
 */

package org.exolab.jms.message;

import javax.jms.BytesMessage;
import javax.jms.MapMessage;
import javax.jms.Message;
import javax.jms.ObjectMessage;
import javax.jms.StreamMessage;
import javax.jms.TextMessage;


/**
 * Factory for {@link MessageConverter} instances
 *
 * @version     $Revision: 1.1 $ $Date: 2004/01/01 13:45:03 $
 * @author      <a href="mailto:[e-mail]">Tim Anderson</a>
 * @see         MessageConverter
 */
public class MessageConverterFactory {

    /**
     * Create an appropriate {@link MessageConverter} for the supplied
     * message
     * 
     * @param message the message to convert
     * @return a converter for <code>Message</code>
     */
    public static MessageConverter create(Message message) {
        MessageConverter result;

        if (message instanceof BytesMessage) {
            result = new BytesMessageConverter();
        } else if (message instanceof MapMessage) {
            result = new MapMessageConverter();
        } else if (message instanceof ObjectMessage) {
            result = new ObjectMessageConverter();
        } else if (message instanceof StreamMessage) {
            result = new StreamMessageConverter();
        } else if (message instanceof TextMessage) {
            result = new TextMessageConverter();
        } else {
            result = new BaseMessageConverter();
        }
        return result;
    }

}