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#ifndef _AMQFrame_
#define _AMQFrame_
/*
*
* 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 "AMQDataBlock.h"
#include "AMQHeaderBody.h"
#include "AMQContentBody.h"
#include "AMQHeartbeatBody.h"
#include "ProtocolVersion.h"
#include <boost/intrusive_ptr.hpp>
#include <boost/cast.hpp>
#include "qpid/CommonImportExport.h"
namespace qpid {
namespace framing {
class AMQFrame : public AMQDataBlock
{
public:
QPID_COMMON_EXTERN AMQFrame(const boost::intrusive_ptr<AMQBody>& b=0);
QPID_COMMON_EXTERN AMQFrame(const AMQBody& b);
QPID_COMMON_EXTERN ~AMQFrame();
ChannelId getChannel() const { return channel; }
void setChannel(ChannelId c) { channel = c; }
QPID_COMMON_EXTERN AMQBody* getBody();
QPID_COMMON_EXTERN const AMQBody* getBody() const;
AMQMethodBody* getMethod() { return getBody()->getMethod(); }
const AMQMethodBody* getMethod() const { return getBody()->getMethod(); }
void setMethod(ClassId c, MethodId m);
template <class T> T* castBody() {
return boost::polymorphic_downcast<T*>(getBody());
}
template <class T> const T* castBody() const {
return boost::polymorphic_downcast<const T*>(getBody());
}
QPID_COMMON_EXTERN void encode(Buffer& buffer) const;
QPID_COMMON_EXTERN bool decode(Buffer& buffer);
QPID_COMMON_EXTERN uint32_t encodedSize() const;
// 0-10 terminology: first/last frame (in segment) first/last segment (in assembly)
bool isFirstSegment() const { return bof; }
bool isLastSegment() const { return eof; }
bool isFirstFrame() const { return bos; }
bool isLastFrame() const { return eos; }
void setFirstSegment(bool set=true) { bof = set; }
void setLastSegment(bool set=true) { eof = set; }
void setFirstFrame(bool set=true) { bos = set; }
void setLastFrame(bool set=true) { eos = set; }
// 0-9 terminology: beginning/end of frameset, beginning/end of segment.
bool getBof() const { return bof; }
void setBof(bool isBof) { bof = isBof; }
bool getEof() const { return eof; }
void setEof(bool isEof) { eof = isEof; }
bool getBos() const { return bos; }
void setBos(bool isBos) { bos = isBos; }
bool getEos() const { return eos; }
void setEos(bool isEos) { eos = isEos; }
static uint16_t DECODE_SIZE_MIN;
QPID_COMMON_EXTERN static uint32_t frameOverhead();
/** Must point to at least DECODE_SIZE_MIN bytes of data */
static uint16_t decodeSize(char* data);
private:
void init();
boost::intrusive_ptr<AMQBody> body;
uint16_t channel : 16;
uint8_t subchannel : 8;
bool bof : 1;
bool eof : 1;
bool bos : 1;
bool eos : 1;
mutable uint32_t encodedSizeCache;
};
QPID_COMMON_EXTERN std::ostream& operator<<(std::ostream&, const AMQFrame&);
}} // namespace qpid::framing
#endif
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