/
Engine.h
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/
Engine.h
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/*
* Copyright 2016 Utkin Dmitry <loentar@gmail.com>
*
* 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.
*/
/*
* This file is part of ngrest: http://github.com/loentar/ngrest
*/
#ifndef NGREST_ENGINE_H
#define NGREST_ENGINE_H
namespace ngrest {
enum class Phase;
struct MessageContext;
class ServiceDispatcher;
class FilterDispatcher;
/**
* @brief Message processing engine.
* - parse body of request using supplied transport parser to OM
* - dispatch message using service dispatcher
* - write response and pass it to the transport
*/
class Engine
{
public:
/**
* @brief constructs engine with given dispatcher
* @param serviceDispatcher service dispatcher to use
*/
Engine(ServiceDispatcher& serviceDispatcher);
/**
* @brief set filter dispatcher for engine
* @param filterDispatcher filter dispatcher to use
*/
void setFilterDispatcher(FilterDispatcher* filterDispatcher);
/**
* @brief run phase for the message
* @param phase message phase
* @param context message context
*/
void runPhase(Phase phase, MessageContext* context);
/**
* @brief parse, dispatch message and write response
* @param context message context
*/
void dispatchMessage(MessageContext* context);
/**
* @brief get service dispatcher
* @return service dispatcher
*/
ServiceDispatcher& getServiceDispatcher();
/**
* @brief get filter dispatcher
* @return filter dispatcher
*/
FilterDispatcher* getFilterDispatcher();
private:
ServiceDispatcher& serviceDispatcher;
FilterDispatcher* filterDispatcher = nullptr;
};
} // namespace ngrest
#endif // NGREST_ENGINE_H