FGDistributor.h

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 Header:       FGDistributor.h
 Author:       Jon S. Berndt
 Date started: 09/27/2013
 
 ------------- Copyright (C) 2013 jon@jsbsim.org  -------------
 
 This program 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 2 of the License, or (at your option) any
 later version.
 
 This program 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 this program; if not, write to the Free Software Foundation, Inc., 59
 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 Further information about the GNU Lesser General Public License can also be
 found on the world wide web at http://www.gnu.org.
 
HISTORY
--------------------------------------------------------------------------------
 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
SENTRY
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 
#ifndef FGDISTRIBUTOR_H
#define FGDISTRIBUTOR_H
 
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
INCLUDES
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 
#include "FGFCSComponent.h"
#include "math/FGCondition.h"
#include "math/FGParameterValue.h"
 
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
FORWARD DECLARATIONS
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 
namespace JSBSim {
 
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
CLASS DOCUMENTATION
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
CLASS DECLARATION
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 
class FGDistributor  : public FGFCSComponent
{
public:
  FGDistributor(FGFCS* fcs, Element* element);
 
  bool Run(void) override;
 
private:
 
  enum eType {eInclusive=0, eExclusive} Type;
  template<typename T> using vector_of_unique_ptr = std::vector<std::unique_ptr<T>>;
 
  class PropValPair {
  public:
    PropValPair(const std::string& prop, const std::string& val,
                std::shared_ptr<FGPropertyManager> propMan, Element* el)
      : Prop(new FGPropertyValue(prop, propMan, el)),
        Val(new FGParameterValue(val, propMan, el)) {}
 
    void SetPropToValue() {
      try {
        Prop->SetValue(Val->GetValue());
      }
      catch(...) {
        throw BaseException(Prop->GetName()+" in distributor component is not known");
      }
    }
 
    std::string GetPropName() const { return Prop->GetName(); }
    std::string GetValString() const { return Val->GetName(); }
    bool GetLateBoundProp() const { return Prop->IsLateBound(); }
    bool GetLateBoundValue() const { return Val->IsLateBound(); }
  private:
    FGPropertyValue_ptr Prop;
    FGParameterValue_ptr Val;
  };
 
  class Case {
  public:
    Case() : Test(nullptr) {}
 
    void SetTest(Element* test_element, std::shared_ptr<FGPropertyManager> propMan) {
      Test = std::make_unique<FGCondition>(test_element, propMan);
    }
    const FGCondition& GetTest(void) const noexcept { return *Test; }
    void AddPropValPair(const std::string& property, const std::string& value,
                        std::shared_ptr<FGPropertyManager> propManager, Element* prop_val_el) {
      PropValPairs.push_back(std::make_unique<PropValPair>(property, value, propManager, prop_val_el));
    }
    void SetPropValPairs() {
      for (auto& pair: PropValPairs) pair->SetPropToValue();
    }
    vector_of_unique_ptr<PropValPair>::const_iterator begin(void) const
    { return PropValPairs.cbegin(); }
    vector_of_unique_ptr<PropValPair>::const_iterator end(void) const
    { return PropValPairs.cend(); }
    bool HasTest() const noexcept { return Test != nullptr; }
    bool GetTestResult() const { return Test->Evaluate(); }
 
  private:
    std::unique_ptr<FGCondition> Test;
    vector_of_unique_ptr<PropValPair> PropValPairs;
  };
 
  vector_of_unique_ptr<Case> Cases;
 
  void Debug(int from) override;
};
}
#endif