Initfile.hpp

#pragma once
 
#include <optional>
#include <string>
 
#include <dune/common/parametertree.hh>
 
 
namespace AMDiS
{
  class Initfile
  {
  public:
    static void init(std::string const& in);
 
 
    template <class T>
    static std::optional<T> get(std::string const& key)
    {
      if (pt().hasKey(key))
        return pt().get<T>(key);
      else
        return {};
    }
 
 
    template <class T>
    static void get(std::string const& key, T& value)
    {
      value = pt().get(key, value);
    }
 
    template <class T>
    static void set(std::string const& key, T const& value)
    {
      pt()[key] = value;
    }
 
    static int getMsgInfo()
    {
      return singlett().msgInfo_;
    }
 
    static void printParameters();
 
    static void clearData() {}
 
  protected:
    Initfile() = default;
 
    static Initfile& singlett()
    {
      static Initfile initfile;
      return initfile;
    }
 
    static Dune::ParameterTree& pt()
    {
      return singlett().pt_;
    }
 
    void read(std::string const& fn, bool force = false);
    void write(std::string const& fn);
 
    void getInternalParameters();
 
    int msgInfo_ = 0;
    int paramInfo_ = 1;
    bool breakOnMissingTag_ = false;
 
    Dune::ParameterTree pt_;
  };
 
  using Parameters = Initfile;
 
} // end namespace AMDiS