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#ifndef _broker_BrokerMessage_h
#define _broker_BrokerMessage_h
/*
*
* 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.
*
*/
#include <memory>
#include <boost/shared_ptr.hpp>
#include <BrokerMessageBase.h>
#include <BasicHeaderProperties.h>
#include <ConnectionToken.h>
#include <Content.h>
#include <Mutex.h>
#include <TxBuffer.h>
namespace qpid {
namespace framing {
class MethodContext;
class ChannelAdapter;
class AMQHeaderBody;
}
namespace broker {
class MessageStore;
using framing::string;
/**
* Represents an AMQP message, i.e. a header body, a list of
* content bodies and some details about the publication
* request.
*/
class BasicMessage : public Message {
boost::shared_ptr<framing::AMQHeaderBody> header;
std::auto_ptr<Content> content;
sys::Mutex contentLock;
uint64_t size;
void sendContent(framing::ChannelAdapter&, uint32_t framesize);
public:
typedef boost::shared_ptr<BasicMessage> shared_ptr;
BasicMessage(const ConnectionToken* const publisher,
const string& exchange, const string& routingKey,
bool mandatory, bool immediate,
boost::shared_ptr<framing::AMQMethodBody> respondTo);
BasicMessage();
~BasicMessage();
void setHeader(boost::shared_ptr<framing::AMQHeaderBody> header);
void addContent(framing::AMQContentBody::shared_ptr data);
bool isComplete();
void deliver(framing::ChannelAdapter&,
const string& consumerTag,
uint64_t deliveryTag,
uint32_t framesize);
void sendGetOk(const framing::MethodContext&,
const std::string& destination,
uint32_t messageCount,
uint64_t deliveryTag,
uint32_t framesize);
framing::BasicHeaderProperties* getHeaderProperties();
const framing::FieldTable& getApplicationHeaders();
bool isPersistent();
uint64_t contentSize() const { return size; }
void decode(framing::Buffer& buffer, bool headersOnly = false,
uint32_t contentChunkSize = 0);
void decodeHeader(framing::Buffer& buffer);
void decodeContent(framing::Buffer& buffer, uint32_t contentChunkSize = 0);
void encode(framing::Buffer& buffer);
void encodeHeader(framing::Buffer& buffer);
void encodeContent(framing::Buffer& buffer);
/**
* @returns the size of the buffer needed to encode this
* message in its entirety
*/
uint32_t encodedSize();
/**
* @returns the size of the buffer needed to encode the
* 'header' of this message (not just the header frame,
* but other meta data e.g.routing key and exchange)
*/
uint32_t encodedHeaderSize();
/**
* @returns the size of the buffer needed to encode the
* (possibly partial) content held by this message
*/
uint32_t encodedContentSize();
/**
* Releases the in-memory content data held by this
* message. Must pass in a store from which the data can
* be reloaded.
*/
void releaseContent(MessageStore* store);
/**
* If headers have been received, returns the expected
* content size else returns 0.
*/
uint64_t expectedContentSize();
/**
* Sets the 'content' implementation of this message (the
* message controls the lifecycle of the content instance
* it uses).
*/
void setContent(std::auto_ptr<Content>& content);
};
}
}
#endif /*!_broker_BrokerMessage_h*/
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