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#ifndef _broker_Message_h
#define _broker_Message_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 "qpid/broker/BrokerImportExport.h"
#include "qpid/broker/PersistableMessage.h"
#include "qpid/broker/MessageAdapter.h"
#include "qpid/framing/amqp_types.h"
#include "qpid/sys/Monitor.h"
#include "qpid/sys/Time.h"
#include <boost/function.hpp>
#include <boost/shared_ptr.hpp>
#include <string>
#include <vector>
namespace qpid {
namespace framing {
class FieldTable;
class SequenceNumber;
}
namespace broker {
class ConnectionToken;
class Exchange;
class ExchangeRegistry;
class MessageStore;
class Queue;
class ExpiryPolicy;
class Message : public PersistableMessage {
public:
typedef boost::function<void (const boost::intrusive_ptr<Message>&)> MessageCallback;
QPID_BROKER_EXTERN Message(const framing::SequenceNumber& id = framing::SequenceNumber());
QPID_BROKER_EXTERN Message(const Message&);
QPID_BROKER_EXTERN ~Message();
uint64_t getPersistenceId() const { return persistenceId; }
void setPersistenceId(uint64_t _persistenceId) const { persistenceId = _persistenceId; }
bool getRedelivered() const { return redelivered; }
void redeliver() { redelivered = true; }
const ConnectionToken* getPublisher() const { return publisher; }
void setPublisher(ConnectionToken* p) { publisher = p; }
const framing::SequenceNumber& getCommandId() { return frames.getId(); }
QPID_BROKER_EXTERN uint64_t contentSize() const;
QPID_BROKER_EXTERN std::string getRoutingKey() const;
const boost::shared_ptr<Exchange> getExchange(ExchangeRegistry&) const;
QPID_BROKER_EXTERN std::string getExchangeName() const;
bool isImmediate() const;
QPID_BROKER_EXTERN const framing::FieldTable* getApplicationHeaders() const;
QPID_BROKER_EXTERN std::string getAppId() const;
framing::FieldTable& getOrInsertHeaders();
QPID_BROKER_EXTERN bool isPersistent() const;
bool requiresAccept();
QPID_BROKER_EXTERN void setTimestamp(const boost::intrusive_ptr<ExpiryPolicy>& e);
void setExpiryPolicy(const boost::intrusive_ptr<ExpiryPolicy>& e);
bool hasExpired();
sys::AbsTime getExpiration() const { return expiration; }
void adjustTtl();
framing::FrameSet& getFrames() { return frames; }
const framing::FrameSet& getFrames() const { return frames; }
template <class T> T* getProperties() {
qpid::framing::AMQHeaderBody* p = frames.getHeaders();
return p->get<T>(true);
}
template <class T> const T* getProperties() const {
const qpid::framing::AMQHeaderBody* p = frames.getHeaders();
return p->get<T>(true);
}
template <class T> const T* hasProperties() const {
const qpid::framing::AMQHeaderBody* p = frames.getHeaders();
return p->get<T>();
}
template <class T> const T* getMethod() const {
return frames.as<T>();
}
template <class T> T* getMethod() {
return frames.as<T>();
}
template <class T> bool isA() const {
return frames.isA<T>();
}
uint32_t getRequiredCredit();
void encode(framing::Buffer& buffer) const;
void encodeContent(framing::Buffer& buffer) const;
/**
* @returns the size of the buffer needed to encode this
* message in its entirety
*/
uint32_t encodedSize() const;
/**
* @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() const;
uint32_t encodedContentSize() const;
QPID_BROKER_EXTERN void decodeHeader(framing::Buffer& buffer);
QPID_BROKER_EXTERN void decodeContent(framing::Buffer& buffer);
void QPID_BROKER_EXTERN tryReleaseContent();
void releaseContent();
void releaseContent(MessageStore* s);//deprecated, use 'setStore(store); releaseContent();' instead
void destroy();
bool getContentFrame(const Queue& queue, framing::AMQFrame& frame, uint16_t maxContentSize, uint64_t offset) const;
QPID_BROKER_EXTERN void sendContent(const Queue& queue, framing::FrameHandler& out, uint16_t maxFrameSize) const;
void sendHeader(framing::FrameHandler& out, uint16_t maxFrameSize) const;
QPID_BROKER_EXTERN bool isContentLoaded() const;
bool isExcluded(const std::vector<std::string>& excludes) const;
void addTraceId(const std::string& id);
void forcePersistent();
bool isForcedPersistent();
/** Call cb when dequeue is complete, may call immediately. Holds cb by reference. */
void setDequeueCompleteCallback(MessageCallback& cb);
void resetDequeueCompleteCallback();
uint8_t getPriority() const;
bool getIsManagementMessage() const;
void setIsManagementMessage(bool b);
private:
MessageAdapter& getAdapter() const;
void allDequeuesComplete();
mutable sys::Mutex lock;
framing::FrameSet frames;
mutable boost::shared_ptr<Exchange> exchange;
mutable uint64_t persistenceId;
bool redelivered;
bool loaded;
bool staged;
bool forcePersistentPolicy; // used to force message as durable, via a broker policy
ConnectionToken* publisher;
mutable MessageAdapter* adapter;
qpid::sys::AbsTime expiration;
boost::intrusive_ptr<ExpiryPolicy> expiryPolicy;
static TransferAdapter TRANSFER;
mutable boost::intrusive_ptr<Message> empty;
sys::Monitor callbackLock;
MessageCallback* dequeueCallback;
bool inCallback;
uint32_t requiredCredit;
bool isManagementMessage;
};
}}
#endif
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