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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 java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import javax.jms.JMSException;
import javax.jms.MessageFormatException;
import javax.jms.ObjectMessage;
import org.apache.mina.common.ByteBuffer;
import org.apache.qpid.AMQException;
public class JMSObjectMessage extends AbstractJMSMessage implements ObjectMessage
{
public static final String MIME_TYPE = "application/java-object-stream";
private static final int DEFAULT_BUFFER_SIZE = 1024;
/**
* Creates empty, writable message for use by producers
* @param delegateFactory
*/
public JMSObjectMessage(AMQMessageDelegateFactory delegateFactory)
{
this(delegateFactory, null);
}
private JMSObjectMessage(AMQMessageDelegateFactory delegateFactory, ByteBuffer data)
{
super(delegateFactory, data);
if (data == null)
{
_data = ByteBuffer.allocate(DEFAULT_BUFFER_SIZE);
_data.setAutoExpand(true);
}
setContentType(getMimeType());
}
/**
* Creates read only message for delivery to consumers
*/
JMSObjectMessage(AMQMessageDelegate delegate, ByteBuffer data) throws AMQException
{
super(delegate, data);
}
public void clearBodyImpl() throws JMSException
{
if (_data != null)
{
_data.release();
_data = null;
}
}
public String toBodyString() throws JMSException
{
return String.valueOf(getObject());
}
public String getMimeType()
{
return MIME_TYPE;
}
public void setObject(Serializable serializable) throws JMSException
{
checkWritable();
if (_data == null)
{
_data = ByteBuffer.allocate(DEFAULT_BUFFER_SIZE);
_data.setAutoExpand(true);
}
else
{
_data.rewind();
}
try
{
ObjectOutputStream out = new ObjectOutputStream(_data.asOutputStream());
out.writeObject(serializable);
out.flush();
out.close();
}
catch (IOException e)
{
MessageFormatException mfe = new MessageFormatException("Message not serializable: " + e);
mfe.setLinkedException(e);
mfe.initCause(e);
throw mfe;
}
}
public Serializable getObject() throws JMSException
{
ObjectInputStream in = null;
if (_data == null)
{
return null;
}
try
{
_data.rewind();
in = new ObjectInputStream(_data.asInputStream());
return (Serializable) in.readObject();
}
catch (IOException e)
{
MessageFormatException mfe = new MessageFormatException("Could not deserialize message: " + e);
mfe.setLinkedException(e);
mfe.initCause(e);
throw mfe;
}
catch (ClassNotFoundException e)
{
MessageFormatException mfe = new MessageFormatException("Could not deserialize message: " + e);
mfe.setLinkedException(e);
mfe.initCause(e);
throw mfe;
}
finally
{
// _data.rewind();
close(in);
}
}
private static void close(InputStream in)
{
try
{
if (in != null)
{
in.close();
}
}
catch (IOException ignore)
{ }
}
}
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