ModuleParamList.templateDetails.h

/**************************************************************************
 * BASF2 (Belle Analysis Framework 2)                                     *
 * Copyright(C) 2010 - Belle II Collaboration                             *
 *                                                                        *
 * Author: The Belle II Collaboration                                     *
 * Contributors: Andreas Moll                                             *
 *                                                                        *
 * This software is provided "as is" without any warranty.                *
 **************************************************************************/
 
#pragma once
 
#include <framework/core/ModuleParamList.h>
#include <framework/core/ModuleParam.h>
#include <framework/logging/Logger.h>
 
#include <map>
#include <string>
 
namespace Belle2 {
  //======================================================
  //       Implementation of template based methods
  //======================================================
 
  template <typename T>
  void ModuleParamList::addParameter(const std::string& name,
                                     T& paramVariable,
                                     const std::string& description,
                                     const T& defaultValue)
  {
    ModuleParamPtr newParam(new ModuleParam<T>(paramVariable, description, false));
 
    // Check if a parameter with the given name already exists
    std::map<std::string, ModuleParamPtr>::iterator mapIter;
    mapIter = m_paramMap.find(name);
 
    if (mapIter == m_paramMap.end()) {
      m_paramMap.insert(std::make_pair(name, newParam));
      ModuleParam<T>* explModParam = static_cast<ModuleParam<T>*>(newParam.get());
      explModParam->setDefaultValue(defaultValue);
    } else {
      B2ERROR("A parameter with the name '" + name +
              "' already exists! The name of a module parameter must be unique within a module.");
    }
  }
 
  template <typename T>
  void ModuleParamList::addParameter(const std::string& name,
                                     T& paramVariable,
                                     const std::string& description)
  {
    ModuleParamPtr newParam(new ModuleParam<T>(paramVariable, description, true));
 
    // Check if a parameter with the given name already exists
    std::map<std::string, ModuleParamPtr>::iterator mapIter;
    mapIter = m_paramMap.find(name);
 
    if (mapIter == m_paramMap.end()) {
      m_paramMap.insert(std::make_pair(name, newParam));
    } else {
      B2ERROR("A parameter with the name '" + name +
              "' already exists! The name of a module parameter must be unique within a module.");
    }
  }
 
  template <typename T>
  void ModuleParamList::setParameter(const std::string& name, const T& value)
  {
    try {
      ModuleParam<T>& explModParam = getParameter<T>(name);
      explModParam.setValue(value);
    } catch (std::runtime_error& exc) {
      B2ERROR(exc.what());
    }
  }
 
  template <typename T>
  ModuleParam<T>& ModuleParamList::getParameter(const std::string& name) const
  {
    // Check if a parameter with the given name exists
    std::map<std::string, ModuleParamPtr>::const_iterator mapIter;
    mapIter = m_paramMap.find(name);
 
    if (mapIter != m_paramMap.end()) {
      ModuleParamPtr moduleParam = mapIter->second;
 
      // Check the type of the stored parameter (currently done using the type identifier string)
      if (moduleParam->getTypeInfo() == ModuleParam<T>::TypeInfo()) {
        ModuleParam<T>* explModParam = static_cast<ModuleParam<T>*>(moduleParam.get());
        return *explModParam;
      } else
        throwTypeError(name, moduleParam->getTypeInfo(), ModuleParam<T>::TypeInfo());
    } else
      throwNotFoundError(name);
  }
 
  //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  //                   Python API
  //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
  template <typename PythonObject>
  void ModuleParamList::setParamPython(const std::string& name, const PythonObject& pyObj)
  {
 
    ModuleParamPtr p = getParameterPtr(name);
    p->setValueFromPythonObject(pyObj);
  }
 
  template <typename PythonObject>
  void ModuleParamList::getParamValuesPython(const std::string& name,
                                             PythonObject& pyOutput,
                                             bool defaultValues) const
  {
    try {
      ModuleParamPtr p = getParameterPtr(name);
      p->setValueToPythonObject(pyOutput, defaultValues);
    } catch (std::runtime_error& exc) {
      B2ERROR(exc.what());
    }
  }
 
} // end of Belle2 namespace