observable.hpp

/*
  ANCH Framework: ANother C++ Hack is a C++ framework based on C++11 standard
  Copyright (C) 2012 Vincent Lachenal
 
  This file is part of ANCH Framework.
 
  ANCH Framework is free software: you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
 
  ANCH Framework is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU Lesser General Public License for more details.
 
  You should have received a copy of the GNU Lesser General Public License
  along with ANCH Framework.  If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
 
#include <mutex>
#include <set>
#include <map>
#include <string>
 
#include "events/observer.hpp"
#include "events/event.hpp"
#include "lessPtrCompare.hpp"
 
 
namespace anch::events {

  template<typename T>
  class Observable {
 
  private:
    // Attributes +
    std::set<anch::events::Observer<T>*, anch::LessPtrCompare<anch::events::Observer<T> > > _observers;

    std::mutex _mutex;
    // Attributes -
 
  public:
    // Constructors +
    Observable();
    // Constructors -
 
    // Destructor +
    virtual ~Observable();
    // Destructor -
 
  public:
    // Methods +
    bool addObserver(anch::events::Observer<T>& observer);

    void removeObserver(anch::events::Observer<T>& observer);

    void notifyObservers(const T& event, const std::map<std::string,std::string>& headers = {});

    void notifyObservers(const anch::events::Event<T>& event);
    // Methods -
 
  };
 
}
 
#include "events/impl/observable.hpp"