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/*
*
* 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.qpid.client.message;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.qpid.client.AMQSession;
import javax.jms.*;
import java.util.Enumeration;
public class MessageConverter
{
/**
* Log4J logger
*/
protected final Logger _logger = LoggerFactory.getLogger(getClass());
/**
* AbstractJMSMessage which will hold the converted message
*/
private AbstractJMSMessage _newMessage;
public MessageConverter(AbstractJMSMessage message) throws JMSException
{
_newMessage = message;
}
public MessageConverter(AMQSession session, BytesMessage bytesMessage) throws JMSException
{
bytesMessage.reset();
JMSBytesMessage nativeMsg = (JMSBytesMessage) session.createBytesMessage();
byte[] buf = new byte[1024];
int len;
while ((len = bytesMessage.readBytes(buf)) != -1)
{
nativeMsg.writeBytes(buf, 0, len);
}
_newMessage = nativeMsg;
setMessageProperties(bytesMessage);
}
public MessageConverter(AMQSession session, MapMessage message) throws JMSException
{
MapMessage nativeMessage = session.createMapMessage();
Enumeration mapNames = message.getMapNames();
while (mapNames.hasMoreElements())
{
String name = (String) mapNames.nextElement();
nativeMessage.setObject(name, message.getObject(name));
}
_newMessage = (AbstractJMSMessage) nativeMessage;
setMessageProperties(message);
}
public MessageConverter(AMQSession session, ObjectMessage origMessage) throws JMSException
{
ObjectMessage nativeMessage = session.createObjectMessage();
nativeMessage.setObject(origMessage.getObject());
_newMessage = (AbstractJMSMessage) nativeMessage;
setMessageProperties(origMessage);
}
public MessageConverter(AMQSession session, TextMessage message) throws JMSException
{
TextMessage nativeMessage = session.createTextMessage();
nativeMessage.setText(message.getText());
_newMessage = (AbstractJMSMessage) nativeMessage;
setMessageProperties(message);
}
public MessageConverter(AMQSession session, StreamMessage message) throws JMSException
{
StreamMessage nativeMessage = session.createStreamMessage();
try
{
message.reset();
while (true)
{
nativeMessage.writeObject(message.readObject());
}
}
catch (MessageEOFException e)
{
// we're at the end so don't mind the exception
}
_newMessage = (AbstractJMSMessage) nativeMessage;
setMessageProperties(message);
}
public MessageConverter(AMQSession session, Message message) throws JMSException
{
// Send a message with just properties.
// Throwing away content
Message nativeMessage = session.createMessage();
_newMessage = (AbstractJMSMessage) nativeMessage;
setMessageProperties(message);
}
public AbstractJMSMessage getConvertedMessage()
{
return _newMessage;
}
/**
* Sets all message properties
*/
protected void setMessageProperties(Message message) throws JMSException
{
setNonJMSProperties(message);
setJMSProperties(message);
}
/**
* Sets all non-JMS defined properties on converted message
*/
protected void setNonJMSProperties(Message message) throws JMSException
{
Enumeration propertyNames = message.getPropertyNames();
while (propertyNames.hasMoreElements())
{
String propertyName = String.valueOf(propertyNames.nextElement());
// TODO: Shouldn't need to check for JMS properties here as don't think getPropertyNames() should return them
if (!propertyName.startsWith("JMSX_"))
{
Object value = message.getObjectProperty(propertyName);
_newMessage.setObjectProperty(propertyName, value);
}
}
}
/**
* Exposed JMS defined properties on converted message:
* JMSDestination - we don't set here
* JMSDeliveryMode - set
* JMSExpiration - we don't set here
* JMSPriority - we don't set here
* JMSMessageID - we don't set here
* JMSTimestamp - we don't set here
* JMSCorrelationID - set
* JMSReplyTo - set
* JMSType - set
* JMSRedlivered - we don't set here
*/
protected void setJMSProperties(Message message) throws JMSException
{
_newMessage.setJMSDeliveryMode(message.getJMSDeliveryMode());
if (message.getJMSReplyTo() != null)
{
_newMessage.setJMSReplyTo(message.getJMSReplyTo());
}
_newMessage.setJMSType(message.getJMSType());
_newMessage.setJMSCorrelationID(message.getJMSCorrelationID());
}
}
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