mapperRegistry.hpp

/*
  ANCH Framework: ANother C++ Hack is a C++ framework based on C++11 standard
  Copyright (C) 2020 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 <map>
#include <string>
#include <istream>
#include <ostream>
#include <optional>
#include <any>
 
#include "singleton.hpp"
 
 
namespace anch::rest {

  auto& castMapper(const std::string& contentType, std::any& mapper);

  class MapperRegistry {
 
    // Attributes +
  private:
    std::map<std::string, std::any> _mappers;
    // Attributes -
 
    // Constructors +
  public:
    MapperRegistry();
    // Constructors -
 
    // Destructor +
  public:
    ~MapperRegistry();
    // Destructor -
 
    // Methods +
  public:
    template<typename T>
    void registerMapper(const std::string& contentType, const T& mapper);

    template<typename T>
    void serialize(const std::string& contentType, T value, std::ostream& out);

    template<typename T>
    void deserialize(const std::string& contentType, T& value, std::istream& input);

    template<typename T>
    std::optional<T> mapper(const std::string& contentType);
    // Methods -
 
  };

  class GlobalMapperRegistry: public MapperRegistry, public anch::Singleton<GlobalMapperRegistry> {
    friend anch::Singleton<GlobalMapperRegistry>;
 
  private:
    GlobalMapperRegistry();

    virtual ~GlobalMapperRegistry();
 
  };
 
}  // anch::rest
 
#include "rest/impl/mapperRegistry.hpp"