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/*
*
* Copyright (c) 2006 The Apache Software Foundation
*
* Licensed 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 "ClassifierHandler.h"
#include "qpid/framing/AMQFrame.h"
#include "qpid/framing/ExchangeDeclareBody.h"
#include "qpid/framing/ExchangeDeleteBody.h"
#include "qpid/framing/QueueBindBody.h"
#include "qpid/framing/QueueDeclareBody.h"
#include "qpid/framing/QueueDeleteBody.h"
#include "qpid/framing/QueueUnbindBody.h"
namespace qpid {
namespace cluster {
using namespace framing;
typedef uint32_t FullMethodId; // Combind class & method ID.
FullMethodId fullId(ClassId c, MethodId m) { return c<<16+m; }
FullMethodId fullId(const AMQMethodBody* body) {
return fullId(body->amqpClassId(), body->amqpMethodId());
}
template <class M>
FullMethodId fullId() { return fullId(M::CLASS_ID, M::METHOD_ID); }
ClassifierHandler::ClassifierHandler(Chain wiring, Chain other)
: FrameHandler(other)
{
map[fullId<ExchangeDeclareBody>()] = wiring;
map[fullId<ExchangeDeleteBody>()] = wiring;
map[fullId<QueueBindBody>()] = wiring;
map[fullId<QueueDeclareBody>()] = wiring;
map[fullId<QueueDeleteBody>()] = wiring;
map[fullId<QueueUnbindBody>()] = wiring;
}
void ClassifierHandler::handle(AMQFrame& frame) {
// TODO aconway 2007-07-03: Flatten the frame hierarchy so we
// can do a single lookup to dispatch a frame.
Chain chosen;
AMQMethodBody* method = dynamic_cast<AMQMethodBody*>(frame.getBody());
// FIXME aconway 2007-07-05: Need to stop bypassed frames
// from overtaking mcast frames.
//
if (method)
chosen=map[fullId(method)];
if (chosen)
chosen->handle(frame);
else
next->handle(frame);
}
}} // namespace qpid::cluster
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