diff options
Diffstat (limited to 'qpid/java/broker/src/main/java/org/apache/qpid/server/queue/TransientMessageData.java')
-rw-r--r-- | qpid/java/broker/src/main/java/org/apache/qpid/server/queue/TransientMessageData.java | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/queue/TransientMessageData.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/queue/TransientMessageData.java new file mode 100644 index 0000000000..9b91c71a1d --- /dev/null +++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/queue/TransientMessageData.java @@ -0,0 +1,127 @@ +/* + * + * 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; + } +} |