factory.h

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// Copyright (C) 2024 The m-AIA AUTHORS
//
// This file is part of m-AIA (https://git.rwth-aachen.de/aia/m-AIA/m-AIA)
//
// SPDX-License-Identifier: LGPL-3.0-only
 
#ifndef FACTOR_H_
#define FACTOR_H_
 
#include <functional>
#include <map>
#include <memory>
#include "INCLUDE/maiatypes.h"
#include "UTIL/functions.h"
 
 
template <class AbstractProduct, typename IdentifierType, typename ReturnType = std::unique_ptr<AbstractProduct>,
          class ProductCreator = std::function<ReturnType()>, class... Args>
class MFactory {
 public:
  MBool add(const IdentifierType& id, ProductCreator creator) {
    return m_assoc.insert(typename AssocMap::value_type(id, creator)).second;
  }
 
  MBool remove(const IdentifierType& id) { return m_assoc.erase(id) == true; }
 
  ReturnType create(const IdentifierType& id, Args... args) const {
    auto i = m_assoc.find(id);
    if(i != m_assoc.end()) {
      return (i->second)(args...);
    } else {
      TERMM(1, "Identifier not found.");
    }
  }
 
 private:
  typedef std::map<IdentifierType, ProductCreator> AssocMap;
  AssocMap m_assoc;
};
 
#endif // FACTOR_H_