options.h

/* 
Beam Delivery Simulation (BDSIM) Copyright (C) BDSIM Collaboration, 2001 - 2026.
 
This file is part of BDSIM.
 
BDSIM is free software: you can redistribute it and/or modify 
it under the terms of the GNU General Public License as published 
by the Free Software Foundation version 3 of the License.
 
BDSIM 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 General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with BDSIM.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef OPTIONS_H
#define OPTIONS_H
 
#include <iomanip>
#include <iostream>
#include <string>
#include <vector>
 
#include "published.h"
#include "optionsBase.h"
 
namespace GMAD
{
  class Options: public Published<OptionsBase>, public OptionsBase
  {
  public:
    Options();
    explicit Options(const GMAD::OptionsBase& options);
    
    template<typename T>
    void set_value(std::string name, T value, bool bExit = false);
 
    double get_value(std::string property_name) const;
    std::string get_value_string(std::string property_name) const;
 
    void Amalgamate(const Options& optionsIn, bool override);
 
    bool HasBeenSet(const std::string& name) const;
 
    inline const std::vector<std::string>& KeysOfSetValues() const {return setKeys;}
    
  private:
    void PublishMembers();
  };
 
  template<typename T>
  void Options::set_value(std::string name, T value, bool bExit)
  {
#ifdef BDSDEBUG
    std::cout << "options> Setting value " << std::setw(25) << std::left << name << value << std::endl;
#endif
    // member method can throw runtime_error, catch and exit gracefully
    try
      {
        set(this, name, value);
        setKeys.push_back(name);
      }
    catch (const std::runtime_error&)
      {
        std::cerr << "Error: options> unknown option \"" << name << "\" with value \"" << value << "\"" << std::endl;
        if (bExit)
          {exit(1);}
        else
          {std::rethrow_exception(std::current_exception());} // to be caught by python
      }
  }
}
 
#endif