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/**
   \file opt_exception.hpp
   \brief opt_utilities exceptions
   \author Junhua Gu
*/

#ifndef OPT_EXCEPTION
#define OPT_EXCEPTION
#define OPT_HEADER
#include <string>
#include <exception>
namespace opt_utilities
{
  /**
     \brief the root class of exception used in opt_utilities
   */
  class opt_exception
    :public std::exception
  {
  private:
    std::string _what;
  public:
    opt_exception()
    {};
    
    ~opt_exception()throw()
    {}
    
    opt_exception(const std::string& str)
      :_what(str)
    {}

    const char* what()const throw()
    {
      return _what.c_str();
    }
  };
  
  /**
     When objection is not defined in optimizer, and optimizion is performing,
     this exception will be thrown
   */
  class object_function_not_defined
    :public opt_exception
  {
  public:
    object_function_not_defined()
      :opt_exception("object function undefined")
    {}
  };

  /**
     When the opt_method is not defined before the optimization is performing,
     this exception will be thrown.
   */
  class opt_method_not_defined
    :public opt_exception
  {
  public:
    opt_method_not_defined()
      :opt_exception("opt method undefined")
    {}
  };
  
  /**
     When fitter is not attached in a model, statistic, and other objects,
     this exception will be thrown.
   */
  class fitter_not_set
    :public opt_exception
  {
  public:
    fitter_not_set()
      :opt_exception("fitter_unset")
    {}
  };


  /**
     When the model is not set before the model fitting,
     this exception will be thrown.
   */
  class model_not_defined
    :public opt_exception
  {
  public:
    model_not_defined()
      :opt_exception("model_undefined")
    {}
  };


  /**
     When the data set is not loaded before the model fitting,
     this exception will be thrown.
   */
  class data_not_loaded
    :public opt_exception
  {
  public:
    data_not_loaded()
      :opt_exception("data not loaded")
    {}
  };


  /**
     When the statistic is not set before the model fitting,
     this exception will be thrown.
   */
  class statistic_not_defined
    :public opt_exception
  {
  public:
    statistic_not_defined()
      :opt_exception("statistic undefined")
    {}
  };
  

  /**
     If a parameter is not found by the name or other information,
     this exception will be thrown.
   */
  class param_not_found
    :public opt_exception
  {
  public:
    param_not_found()
      :opt_exception("param name invalid")
    {}
  };
  

  /**
     If param_modifier is not defined, and the user tries to get the 
     param_modifer, this exception will be thrown.
   */
  class param_modifier_not_defined
    :public opt_exception
  {
  public:
    param_modifier_not_defined()
      :opt_exception("param modifier undefined")
    {}
  };

  class data_unsetable
    :public opt_exception
  {
  public:
    data_unsetable()
      :opt_exception("data unsetable")
    {}
  };

}


#endif
//EOF