Context.h

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/*
 * Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
 *
 * 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.
 */
 
#ifndef __HERMES_CONTEXT_H__
#define __HERMES_CONTEXT_H__
 
#include "hermes/core/Config.h"
#include "hermes/core/Source.h"
#include "hermes/core/Sink.h"
#include "hermes/core/MessageBus.h"
 
#include <memory>
#include <set>
 
namespace hermes
{
 
class Context final : private MessageBus, private Source::Registry, private Sink::Registry
{
public:
  const Config *config(void) const;
  void config(std::unique_ptr<Config> &&);
 
public:
  MessageBus *bus(void) { return this; }
 
private:
  void post(std::unique_ptr<Message> &&msg) override;
 
public:
  Source::Registry *sources(void) { return this; }
 
private:
  void attach(Source *source) override;
  void detach(Source *source) override;
 
public:
  Sink::Registry *sinks(void) { return this; }
 
private:
  void append(std::unique_ptr<Sink> &&sink) override;
 
private:
  std::unique_ptr<Config> _config;
  std::set<Source *> _sources;
  std::set<std::unique_ptr<Sink>> _sinks;
};
 
} // namespace hermes
 
#endif // __HERMES_CONTEXT_H__