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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file Sim/Fitting/FitStatus.cpp
//! @brief Implements class FitStatus.
//!
//! @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)
//
// ************************************************************************************************
#include "Sim/Fitting/FitStatus.h"
#include "Fit/Minimizer/MinimizerResult.h"
#include "Sim/Fitting/FitPrintService.h"
#include <memory>
#include <stdexcept>
FitStatus::FitStatus(const FitObjective* fit_objective)
: m_code(IDLE)
, m_fit_objective(fit_objective)
{
}
FitStatus::~FitStatus() = default;
void FitStatus::setInterrupted()
{
m_code = INTERRUPTED;
}
bool FitStatus::isInterrupted() const
{
return m_code == INTERRUPTED;
}
bool FitStatus::isCompleted() const
{
return m_code == COMPLETED;
}
void FitStatus::update(const mumufit::Parameters& params, double chi2)
{
if (!isInterrupted())
m_code = RUNNING;
m_iteration_info.update(params, chi2);
m_observers.notify(*m_fit_objective);
}
void FitStatus::initPrint(int every_nth)
{
m_print_service = std::make_unique<FitPrintService>();
FitObserver<FitObjective>::observer_t callback = [&](const FitObjective& objective) {
m_print_service->print(objective);
};
addObserver(every_nth, std::move(callback));
}
void FitStatus::addObserver(int every_nth, fit_observer_t&& observer)
{
m_observers.addObserver(every_nth, std::move(observer));
}
mumufit::MinimizerResult FitStatus::minimizerResult() const
{
if (!m_minimizer_result)
throw std::runtime_error("FitStatus::minimizerResult -> Minimizer result wasn't set. "
"Make sure that FitObjective::finalize() was called.");
return {*m_minimizer_result};
}
void FitStatus::finalize(const mumufit::MinimizerResult& result)
{
m_minimizer_result = std::make_unique<mumufit::MinimizerResult>(result);
m_code = COMPLETED;
m_observers.notify_all(*m_fit_objective);
}
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