org.hornetq.jms.client.HornetQTextMessage Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including
all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and
Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* Copyright 2005-2014 Red Hat, Inc.
* Red Hat 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.hornetq.jms.client;
import javax.jms.JMSException;
import javax.jms.TextMessage;
import org.hornetq.api.core.HornetQBuffer;
import org.hornetq.api.core.HornetQException;
import org.hornetq.api.core.Message;
import org.hornetq.api.core.SimpleString;
import org.hornetq.api.core.client.ClientMessage;
import org.hornetq.api.core.client.ClientSession;
/**
* HornetQ implementation of a JMS TextMessage.
*
* This class was ported from SpyTextMessage in JBossMQ.
*
* @author Norbert Lataille ([email protected])
* @author Jason Dillon
* @author Adrian Brock
* @author Tim Fox
* @author Ovidiu Feodorov
* @author Andy Taylor
* @version $Revision: 3412 $
*/
public class HornetQTextMessage extends HornetQMessage implements TextMessage
{
// Constants -----------------------------------------------------
public static final byte TYPE = Message.TEXT_TYPE;
// Attributes ----------------------------------------------------
// We cache it locally - it's more performant to cache as a SimpleString, the AbstractChannelBuffer write
// methods are more efficient for a SimpleString
private SimpleString text;
// Static --------------------------------------------------------
// Constructors --------------------------------------------------
public HornetQTextMessage(final ClientSession session)
{
super(HornetQTextMessage.TYPE, session);
}
public HornetQTextMessage(final ClientMessage message, final ClientSession session)
{
super(message, session);
}
/**
* A copy constructor for non-HornetQ JMS TextMessages.
*/
public HornetQTextMessage(final TextMessage foreign, final ClientSession session) throws JMSException
{
super(foreign, HornetQTextMessage.TYPE, session);
setText(foreign.getText());
}
// Public --------------------------------------------------------
@Override
public byte getType()
{
return HornetQTextMessage.TYPE;
}
// TextMessage implementation ------------------------------------
public void setText(final String text) throws JMSException
{
checkWrite();
HornetQBuffer buff = message.getBodyBuffer();
buff.clear();
if (text != null)
{
this.text = new SimpleString(text);
}
else
{
this.text = null;
}
buff.writeNullableSimpleString(this.text);
}
public String getText()
{
if (text != null)
{
return text.toString();
}
else
{
return null;
}
}
@Override
public void clearBody() throws JMSException
{
super.clearBody();
text = null;
}
// HornetQRAMessage override -----------------------------------------
@Override
public void doBeforeReceive() throws HornetQException
{
super.doBeforeReceive();
text = message.getBodyBuffer().readNullableSimpleString();
}
@Override
protected T getBodyInternal(Class c)
{
return (T) getText();
}
@Override
public boolean isBodyAssignableTo(@SuppressWarnings("rawtypes") Class c)
{
if (text == null)
return true;
return c.isAssignableFrom(java.lang.String.class);
}
}
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