OptionsParameterHandler.h

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#pragma once
#include <string>
#include <exception>
 
#include "Options.h"
#include "OptionSettings.h"
class OptionsParameterHandler
{
public:
    virtual OptionsParameterHandler* SetNextHandler(OptionsParameterHandler* nextHandler)
    {
        _nextHandler = nextHandler;
        return this;
    }
 
    void InterpreteOptionsParameter(const std::string& entry, ts::OptionSettings& options)
    {
        const bool suitableHandlerFound = IndividualInterpretation(entry, options);
        if (!suitableHandlerFound)
        {
            if (_nextHandler == nullptr)
            {
                throw std::exception(std::string("Entry \"" + entry + " \" is not interpretable as content of a .snp options line.").c_str());
            }
            else
            {
                _nextHandler->InterpreteOptionsParameter(entry, options);
            }
        }
    }
protected:
    virtual bool IndividualInterpretation(const std::string& entry, ts::OptionSettings& options) = 0;
 
private:
 
    OptionsParameterHandler* _nextHandler = nullptr;
};