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package com.sun.messaging.jms.ra;
import java.io.UnsupportedEncodingException;
import javax.jms.JMSException;
import com.sun.messaging.jmq.io.PacketType;
import com.sun.messaging.jmq.jmsservice.JMSPacket;
import com.sun.messaging.jmq.jmsservice.JMSService;
/**
*
*/
public class DirectTextPacket
extends DirectPacket
implements javax.jms.TextMessage {
/**
* The String hat holds the JMS TextMessage body
*/
private String text = null;
/**
* Logging
*/
private static transient final String _className =
"com.sun.messaging.jms.ra.DirectTextPacket";
/**
* Create a new instance of DirectTextPacket.<p>
*
* Used by createTextMessage API
*
*/
public DirectTextPacket(DirectSession ds, JMSService jmsservice, String txt)
throws JMSException {
super(ds, jmsservice);
if (_logFINE){
Object params[] = new Object[3];
params[0] = ds;
params[1] = jmsservice;
params[2] = txt;
_loggerOC.entering(_className, "constructor()", params);
}
this.text = txt;
}
/**
* Create a new instance of DirectTextPacket.
* Used by Consumer.deliver.
*/
public DirectTextPacket(JMSPacket jmsPacket, long consumerId,
DirectSession ds, JMSService jmsservice)
throws JMSException {
super(jmsPacket, consumerId, ds, jmsservice);
this._getMessageBodyFromPacket();
}
/////////////////////////////////////////////////////////////////////////
// methods that implement javax.jms.TextMessage
/////////////////////////////////////////////////////////////////////////
/**
* Clear out the message body .
*/
public void clearBody()
throws JMSException {
super.clearBody();
this.text = null;
}
/**
* Get the string containing this message's data. The default
* value is null.
*
* @return The <CODE>String</CODE> containing the message's data
*
* @throws JMSException if the JMS provider fails to get the text due to
* some internal error.
*/
public String getText()
throws JMSException {
if (_logFINE){
String methodName = "getText()";
_loggerJM.fine(_lgrMID_INF+/*"messageId="+messageId+":"+*/
methodName+":"/*+this.text*/);
}
return text;
}
/**
* Set the string containing this message's data.
*
* @param string the <CODE>String</CODE> containing the message's data
*
* @throws JMSException if the JMS provider fails to set the text due to
* some internal error.
* @throws MessageNotWriteableException if the message is in read-only
* mode.
*/
public void setText(String string)
throws JMSException {
String methodName = "setText()";
if (_logFINE){
_loggerJM.fine(_lgrMID_INF+/*"messageId="+messageId+":"+*/
methodName+":"+string);
}
this.checkForReadOnlyMessageBody(methodName);
this.text = string;
}
/////////////////////////////////////////////////////////////////////////
// end javax.jms.TextMessage
/////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////
// MQ methods DirectTextPacket / javax.jms.TextMessage
/////////////////////////////////////////////////////////////////////////
/**
* Set the JMS default values on this JMS TextMessage
*/
protected void _setDefaultValues()
throws JMSException {
super._setDefaultValues();
this.pkt.setPacketType(PacketType.TEXT_MESSAGE);
}
/**
* Set the JMS Message body into the packet
*/
protected void _setBodyToPacket()
throws JMSException {
if (this.text != null) {
try {
super._setMessageBodyOfPacket(text.getBytes(UTF8));
} catch (Exception ex) {
String errMsg = _lgrMID_EXC +
":ERROR setting TextMessage body="+ this.text +
":Exception="+ ex.getMessage();
_loggerJM.severe(errMsg);
JMSException jmse = new javax.jms.JMSException(errMsg);
jmse.initCause(ex);
throw jmse;
}
}
}
/**
* Get the JMS Message body from the packet on a receeived message
*/
protected void _getMessageBodyFromPacket()
throws JMSException {
try {
byte[] btext = this._getMessageBodyByteArray();
if (btext != null) {
this.text = new String(btext, UTF8);
}
} catch (Exception e) {
String errMsg = _lgrMID_EXC +
":Exception getting body for receieved TextMessage"+
e.getMessage();
_loggerJM.severe(errMsg);
JMSException jmse = new javax.jms.JMSException(errMsg);
jmse.initCause(e);
throw jmse;
}
}
}