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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.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.apache.qpid.framing.BasicDeliverBody;
import org.apache.qpid.framing.BasicReturnBody;
import org.apache.qpid.framing.ContentBody;
import org.apache.qpid.framing.ContentHeaderBody;
/**
* This class contains everything needed to process a JMS message. It assembles the deliver body, the content header and
* the content body/ies.
*
* Note that the actual work of creating a JMS message for the client code's use is done outside of the MINA dispatcher
* thread in order to minimise the amount of work done in the MINA dispatcher thread.
*/
public abstract class UnprocessedMessage
{
private long _bytesReceived = 0L;
private ContentHeaderBody _contentHeader;
/** List of ContentBody instances. Due to fragmentation you don't know how big this will be in general */
private List<ContentBody> _bodies;
public void receiveBody(ContentBody body) //throws UnexpectedBodyReceivedException
{
if (body.payload != null)
{
final long payloadSize = body.payload.remaining();
if (_bodies == null)
{
if (payloadSize == getContentHeader().bodySize)
{
_bodies = Collections.singletonList(body);
}
else
{
_bodies = new ArrayList<ContentBody>();
_bodies.add(body);
}
}
else
{
_bodies.add(body);
}
_bytesReceived += payloadSize;
}
}
public boolean isAllBodyDataReceived()
{
return _bytesReceived == getContentHeader().bodySize;
}
abstract public BasicDeliverBody getDeliverBody();
abstract public BasicReturnBody getBounceBody();
public ContentHeaderBody getContentHeader()
{
return _contentHeader;
}
public void setContentHeader(ContentHeaderBody contentHeader)
{
this._contentHeader = contentHeader;
}
public List<ContentBody> getBodies()
{
return _bodies;
}
abstract public boolean isDeliverMessage();
public static final class UnprocessedDeliverMessage extends UnprocessedMessage
{
private final BasicDeliverBody _body;
public UnprocessedDeliverMessage(final BasicDeliverBody body)
{
_body = body;
}
public BasicDeliverBody getDeliverBody()
{
return _body;
}
public BasicReturnBody getBounceBody()
{
return null;
}
public boolean isDeliverMessage()
{
return true;
}
}
public static final class UnprocessedBouncedMessage extends UnprocessedMessage
{
private final BasicReturnBody _body;
public UnprocessedBouncedMessage(final BasicReturnBody body)
{
_body = body;
}
public BasicDeliverBody getDeliverBody()
{
return null;
}
public BasicReturnBody getBounceBody()
{
return _body;
}
public boolean isDeliverMessage()
{
return false;
}
}
}
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