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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file Fit/Option/OptionContainer.h
//! @brief Declares class OptionContainer.
//!
//! @homepage http://www.bornagainproject.org
//! @license GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
// ************************************************************************************************
#ifdef SWIG
#error no need to expose this header to Swig
#endif // SWIG
#ifndef BORNAGAIN_FIT_OPTION_OPTIONCONTAINER_H
#define BORNAGAIN_FIT_OPTION_OPTIONCONTAINER_H
#include "Base/Type/OwningVector.h"
#include "Fit/Option/MultiOption.h"
#include <map>
#include <memory>
#include <stdexcept>
//! Stores multi option (int,double,string) in a container.
class OptionContainer {
public:
using option_t = MultiOption*;
using container_t = OwningVector<MultiOption>;
using iterator = container_t::Iterator;
using const_iterator = container_t::ConstIterator;
OptionContainer() = default;
OptionContainer(const OptionContainer& other);
OptionContainer& operator=(const OptionContainer& other);
template <typename T>
option_t addOption(const std::string& optionName, T value, const std::string& description = "");
option_t option(const std::string& optionName);
option_t option(const std::string& optionName) const;
template <typename T> T optionValue(const std::string& optionName) const;
//! Sets the value of option. Option should hold same value type already.
template <typename T> void setOptionValue(const std::string& optionName, T value);
iterator begin() { return m_options.begin(); }
const_iterator begin() const { return m_options.begin(); }
iterator end() { return m_options.end(); }
const_iterator end() const { return m_options.end(); }
size_t size() const { return m_options.size(); }
bool empty() const { return size() == 0; }
protected:
bool exists(const std::string& name);
void swapContent(OptionContainer& other);
container_t m_options;
};
template <typename T>
OptionContainer::option_t OptionContainer::addOption(const std::string& optionName, T value,
const std::string& description)
{
if (exists(optionName))
throw std::runtime_error("OptionContainer::addOption -> Error. Option '" + optionName
+ "' exists.");
option_t result(new MultiOption(optionName, value, description));
m_options.push_back(result);
return result;
}
template <typename T> T OptionContainer::optionValue(const std::string& optionName) const
{
return option(optionName)->get<T>();
}
template <typename T> void OptionContainer::setOptionValue(const std::string& optionName, T value)
{
option(optionName)->value() = value;
if (option(optionName)->value().index() != option(optionName)->defaultValue().index())
throw std::runtime_error(
"OptionContainer::setOptionValue -> Error. Attempt to set different"
"type to option '"
+ optionName + "'");
}
#endif // BORNAGAIN_FIT_OPTION_OPTIONCONTAINER_H
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