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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.
*
*/
#include "MethodHolder.h"
#include "amqp_types.h"
#include "qpid/framing/Buffer.h"
#include "qpid/framing/variant.h"
using namespace boost;
namespace qpid {
namespace framing {
struct SetVariantVisitor : public NoBlankVisitor<> {
QPID_USING_NOBLANK();
MethodId id;
SetVariantVisitor(MethodId m) : id(m) {}
template <class T> void operator()(T& t) const { setVariant(t, id); }
};
inline void setVariant(MethodVariant& var, ClassId c, MethodId m) {
setVariant(var,c);
boost::apply_visitor(SetVariantVisitor(m), var);
}
void MethodHolder::setMethod(ClassId c, MethodId m) {
setVariant(method, c, m);
}
MethodHolder::MethodHolder(ClassId c, MethodId m) {
setMethod(c,m);
}
struct GetClassId : public NoBlankVisitor<ClassId> {
QPID_USING_NOBLANK(ClassId);
template <class T> ClassId operator()(const T&) const {
return T::CLASS_ID;
}
};
struct GetMethodId : public NoBlankVisitor<MethodId> {
QPID_USING_NOBLANK(ClassId);
template <class T> MethodId operator()(const T&) const {
return T::METHOD_ID;
}
};
void MethodHolder::encode(Buffer& b) const {
const AMQMethodBody* body = getMethod();
b.putShort(body->amqpClassId());
b.putShort(body->amqpMethodId());
body->encodeContent(b);
}
void MethodHolder::decode(Buffer& b) {
ClassId classId = b.getShort();
ClassId methodId = b.getShort();
setVariant(method, classId, methodId);
getMethod()->decodeContent(b);
}
uint32_t MethodHolder::size() const {
return sizeof(ClassId)+sizeof(MethodId)+getMethod()->size();
}
AMQMethodBody* MethodHolder::getMethod() {
return applyApplyVisitor(AddressVisitor<AMQMethodBody*>(), method);
}
const AMQMethodBody* MethodHolder::getMethod() const {
return const_cast<MethodHolder*>(this)->getMethod();
}
}} // namespace qpid::framing
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