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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.
*
*/
#ifndef _Message_
#define _Message_
#include <memory>
#include <boost/shared_ptr.hpp>
#include <qpid/broker/ConnectionToken.h>
#include <qpid/broker/Content.h>
#include <qpid/broker/TxBuffer.h>
#include <qpid/framing/AMQContentBody.h>
#include <qpid/framing/AMQHeaderBody.h>
#include <qpid/framing/BasicHeaderProperties.h>
#include <qpid/framing/OutputHandler.h>
namespace qpid {
namespace broker {
class MessageStore;
using qpid::framing::string;
/**
* Represents an AMQP message, i.e. a header body, a list of
* content bodies and some details about the publication
* request.
*/
class Message{
const ConnectionToken* const publisher;
string exchange;
string routingKey;
const bool mandatory;
const bool immediate;
bool redelivered;
qpid::framing::AMQHeaderBody::shared_ptr header;
std::auto_ptr<Content> content;
u_int64_t size;
u_int64_t persistenceId;
void sendContent(qpid::framing::OutputHandler* out,
int channel, u_int32_t framesize);
public:
typedef boost::shared_ptr<Message> shared_ptr;
Message(const ConnectionToken* const publisher,
const string& exchange, const string& routingKey,
bool mandatory, bool immediate);
Message(qpid::framing::Buffer& buffer, bool headersOnly = false, u_int32_t contentChunkSize = 0);
Message();
~Message();
void setHeader(qpid::framing::AMQHeaderBody::shared_ptr header);
void addContent(qpid::framing::AMQContentBody::shared_ptr data);
bool isComplete();
const ConnectionToken* const getPublisher();
void deliver(qpid::framing::OutputHandler* out,
int channel,
const string& consumerTag,
u_int64_t deliveryTag,
u_int32_t framesize);
void sendGetOk(qpid::framing::OutputHandler* out,
int channel,
u_int32_t messageCount,
u_int64_t deliveryTag,
u_int32_t framesize);
void redeliver();
qpid::framing::BasicHeaderProperties* getHeaderProperties();
bool isPersistent();
const string& getRoutingKey() const { return routingKey; }
const string& getExchange() const { return exchange; }
u_int64_t contentSize() const { return size; }
u_int64_t getPersistenceId() const { return persistenceId; }
void setPersistenceId(u_int64_t _persistenceId) { persistenceId = _persistenceId; }
void decode(qpid::framing::Buffer& buffer, bool headersOnly = false, u_int32_t contentChunkSize = 0);
void decodeHeader(qpid::framing::Buffer& buffer);
void decodeContent(qpid::framing::Buffer& buffer, u_int32_t contentChunkSize = 0);
void encode(qpid::framing::Buffer& buffer);
void encodeHeader(qpid::framing::Buffer& buffer);
void encodeContent(qpid::framing::Buffer& buffer);
/**
* @returns the size of the buffer needed to encode this
* message in its entirety
*/
u_int32_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)
*/
u_int32_t encodedHeaderSize();
/**
* @returns the size of the buffer needed to encode the
* (possibly partial) content held by this message
*/
u_int32_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.
*/
u_int64_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
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