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#ifndef QPID_FRAMING_BODYHOLDER_H
#define QPID_FRAMING_BODYHOLDER_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/framing/AMQBody.h"
#include "qpid/framing/Blob.h"
#include "qpid/framing/MaxMethodBodySize.h" // Generated file.
#include "qpid/framing/amqp_types.h"
#include "qpid/RefCounted.h"
namespace qpid {
namespace framing {
class AMQMethodBody;
class AMQBody;
class Buffer;
/**
* Holder for arbitrary frame body.
*/
class BodyHolder : public RefCounted
{
public:
// default copy, assign dtor ok.
BodyHolder() {}
BodyHolder(const AMQBody& b) { setBody(b); }
BodyHolder(ClassId c, MethodId m) { setMethod(c,m); }
/** Construct from an in_place constructor expression */
template <class InPlace>
BodyHolder(const InPlace& ip, typename EnableInPlace<InPlace>::type* =0)
: blob(ip) {}
void setBody(const AMQBody& b);
/** Assign from an in_place constructor expression */
template <class InPlace>
typename EnableInPlace<InPlace,BodyHolder&>::type
operator=(const InPlace& ip) { blob=ip; return *this; }
/** Assign by copying. */
template <class T>
typename DisableInPlace<T,BodyHolder&>::type operator=(const T& x)
{ blob=in_place<T>(x); return *this; }
/** Set to method with ClassId c, MethodId m. */
void setMethod(ClassId c, MethodId m);
void encode(Buffer&) const;
void decode(uint8_t frameType, Buffer&, uint32_t=0);
uint32_t size() const;
/** Return body pointer or 0 if empty. */
AMQBody* get() { return blob.get(); }
const AMQBody* get() const { return blob.get(); }
/** Return method pointer or 0 if not a method. */
AMQMethodBody* getMethod() { return get()->getMethod(); }
const AMQMethodBody* getMethod() const { return get()->getMethod(); }
private:
Blob<MAX_METHOD_BODY_SIZE, AMQBody> blob;
};
}} // namespace qpid::framing
#endif /*!QPID_FRAMING_BODYHOLDER_H*/
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