mq5.0-source.main.mq-client.src.main.java.com.sun.messaging.jmq.jmsclient.TextMessageImpl Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2000-2012 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
/*
* @(#)TextMessageImpl.java 1.14 06/27/07
*/
package com.sun.messaging.jmq.jmsclient;
import java.io.*;
import javax.jms.*;
import com.sun.messaging.AdministeredObject;
import com.sun.messaging.jmq.io.PacketType;
/** A TextMessage is used to send a message containing a
* java.lang.String
.
* It inherits from Message
and adds a text message body.
*
* The inclusion of this message type is based on our presumption
* that XML will likely become a popular mechanism for representing
* content of all kinds including the content of JMS messages.
*
*
When a client receives a TextMessage, it is in read-only mode. If a
* client attempts to write to the message at this point, a
* MessageNotWriteableException is thrown. If clearBody
is
* called, the message can now be both read from and written to.
*
* @see javax.jms.Session#createTextMessage()
* @see javax.jms.Session#createTextMessage(String)
* @see javax.jms.BytesMessage
* @see javax.jms.MapMessage
* @see javax.jms.Message
* @see javax.jms.ObjectMessage
* @see javax.jms.StreamMessage
* @see java.lang.String
*/
public class TextMessageImpl
extends MessageImpl
implements TextMessage, Traceable {
private String text = null;
//serialize message body
//This is called when producing messages.
protected void
setMessageBodyToPacket() throws JMSException {
//ObjectOutputStream oos;
if (text == null) {
return;
}
try {
setMessageBody(text.getBytes(UTF8));
}
catch (Exception e) {
ExceptionHandler.handleException(e,
AdministeredObject.cr.X_MESSAGE_SERIALIZE);
}
}
//deserialize message body
//This is called after message is received
protected void
getMessageBodyFromPacket() throws JMSException {
//InputStream is = getMessageBodyStream();
//ObjectInputStream ois = new ObjectInputStream (is);
//text = (String) ois.readObject();
try {
byte[] body = getMessageBody();
if (body != null) {
text = new String(body, UTF8);
}
}
catch (Exception e) {
ExceptionHandler.handleException(e,
AdministeredObject.cr.X_MESSAGE_DESERIALIZE);
}
}
/**
* Constructor.
*/
protected TextMessageImpl() throws JMSException {
super();
setPacketType(PacketType.TEXT_MESSAGE);
}
/**
* clear body
*/
public void clearBody() throws JMSException {
text = null;
setMessageReadMode(false);
}
/** Set the string containing this message's data.
*
* @param string the String containing the message's data
*
* @exception JMSException if JMS fails to set text due to
* some internal JMS error.
* @exception MessageNotWriteableException if message in read-only mode.
*/
public void
setText(String string) throws JMSException {
checkMessageAccess();
text = string;
}
/** Get the string containing this message's data. The default
* value is null.
*
* @return the String containing the message's data
*
* @exception JMSException if JMS fails to get text due to
* some internal JMS error.
*/
public String
getText() throws JMSException {
return text;
}
public String toString() {
return new StringBuffer().append("\nText:\t").append(text).append(super.
toString()).toString();
}
public void dump(PrintStream ps) {
ps.println("------ TextMessageImpl dump ------");
super.dump(ps);
}
}