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#ifndef QPID_FRAMING_METHODHOLDER_H
#define QPID_FRAMING_METHODHOLDER_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/amqp_types.h"
#include "qpid/framing/Blob.h"
#include "qpid/framing/MethodHolderMaxSize.h" // Generated file.
#include <utility>
namespace qpid {
namespace framing {
class AMQMethodBody;
class Buffer;
/**
* Holder for arbitrary method body.
*/
class MethodHolder
{
public:
typedef std::pair<ClassId, MethodId> Id;
template <class T>static Id idOf() {
return std::make_pair(T::CLASS_ID, T::METHOD_ID); }
MethodHolder() {}
MethodHolder(const Id& id) { construct(id); }
MethodHolder(ClassId& c, MethodId& m) { construct(std::make_pair(c,m)); }
template <class M>
MethodHolder(const M& m) : blob(m), id(idOf<M>()) {}
template <class M>
MethodHolder& operator=(const M& m) { blob=m; id=idOf<M>(); return *this; }
/** Construct the method body corresponding to Id */
void construct(const Id&);
void encode(Buffer&) const;
void decode(Buffer&);
uint32_t size() const;
AMQMethodBody* get() {
return static_cast<AMQMethodBody*>(blob.get());
}
const AMQMethodBody* get() const {
return static_cast<const AMQMethodBody*>(blob.get());
}
AMQMethodBody* operator* () { return get(); }
const AMQMethodBody* operator*() const { return get(); }
AMQMethodBody* operator-> () { return get(); }
const AMQMethodBody* operator->() const { return get(); }
private:
Blob<MAX_METHODBODY_SIZE> blob;
Id id;
};
std::ostream& operator<<(std::ostream& out, const MethodHolder& h);
}} // namespace qpid::framing
#endif /*!QPID_FRAMING_METHODHOLDER_H*/
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