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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.server.queue;
import java.util.LinkedList;
import java.util.List;
import java.util.ArrayList;
import java.util.Collections;
import org.apache.qpid.AMQException;
import org.apache.qpid.framing.abstraction.MessagePublishInfo;
import org.apache.qpid.framing.BasicContentHeaderProperties;
import org.apache.qpid.framing.ContentHeaderBody;
/**
* Contains data that is only used in AMQMessage transiently, e.g. while the content
* body fragments are arriving.
*
* Having this data stored in a separate class means that the AMQMessage class avoids
* the small overhead of numerous guaranteed-null references.
*
* @author Apache Software Foundation
*/
public class TransientMessageData
{
/**
* Stored temporarily until the header has been received at which point it is used when
* constructing the handle
*/
private MessagePublishInfo _messagePublishInfo;
/**
* Also stored temporarily.
*/
private ContentHeaderBody _contentHeaderBody;
/**
* Keeps a track of how many bytes we have received in body frames
*/
private long _bodyLengthReceived = 0;
/**
* This is stored during routing, to know the queues to which this message should immediately be
* delivered. It is <b>cleared after delivery has been attempted</b>. Any persistent record of destinations is done
* by the message handle.
*/
private List<AMQQueue> _destinationQueues;
public MessagePublishInfo getMessagePublishInfo()
{
return _messagePublishInfo;
}
public void setMessagePublishInfo(MessagePublishInfo messagePublishInfo)
{
_messagePublishInfo = messagePublishInfo;
}
public List<AMQQueue> getDestinationQueues()
{
return _destinationQueues == null ? (List<AMQQueue>) Collections.EMPTY_LIST : _destinationQueues;
}
public void setDestinationQueues(List<AMQQueue> destinationQueues)
{
_destinationQueues = destinationQueues;
}
public ContentHeaderBody getContentHeaderBody()
{
return _contentHeaderBody;
}
public void setContentHeaderBody(ContentHeaderBody contentHeaderBody)
{
_contentHeaderBody = contentHeaderBody;
}
public long getBodyLengthReceived()
{
return _bodyLengthReceived;
}
public void addBodyLength(int value)
{
_bodyLengthReceived += value;
}
public boolean isAllContentReceived() throws AMQException
{
return _bodyLengthReceived == _contentHeaderBody.bodySize;
}
public void addDestinationQueue(AMQQueue queue)
{
if(_destinationQueues == null)
{
_destinationQueues = new ArrayList<AMQQueue>();
}
_destinationQueues.add(queue);
}
public boolean isPersistent()
{
//todo remove literal values to a constant file such as AMQConstants in common
return _contentHeaderBody.properties instanceof BasicContentHeaderProperties &&
((BasicContentHeaderProperties) _contentHeaderBody.properties).getDeliveryMode() == 2;
}
}
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