SoftwareTriggerVariableManager.h

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
#pragma once
#include <hlt/softwaretrigger/core/SoftwareTriggerObject.h>
#include <memory>
#include <variant>
#include <vector>
 
 
namespace Belle2 {
  namespace SoftwareTrigger {
    class SoftwareTriggerVariableManager {
    private:
      class SoftwareTriggerVariable {
      public:
        double function(const SoftwareTriggerObject* mapOfValues) const
        {
          return mapOfValues->at(name);
        }
 
        std::string name = "";
 
      private:
        explicit SoftwareTriggerVariable(const std::string& theName) : name(theName) { }
 
        SoftwareTriggerVariable(SoftwareTriggerVariable&&) = default;
 
        SoftwareTriggerVariable(const SoftwareTriggerVariable& rhs) = delete;
 
        SoftwareTriggerVariable& operator=(const SoftwareTriggerVariable& rhs) = delete;
 
        friend class SoftwareTriggerVariableManager;
      };
 
    public:
      typedef SoftwareTriggerObject Object;
      typedef SoftwareTriggerVariable Var;
 
      typedef std::variant<double, int, bool> VarVariant;
 
      static SoftwareTriggerVariableManager& Instance();
 
      SoftwareTriggerVariable* getVariable(const std::string& variableName);
 
      SoftwareTriggerVariable* getVariable(const std::string& variableName, const std::vector<std::string>& arguments);
 
    private:
      SoftwareTriggerVariableManager() { }
 
      SoftwareTriggerVariableManager(const SoftwareTriggerVariableManager&) = delete;
 
      SoftwareTriggerVariableManager& operator=(SoftwareTriggerVariableManager& rhs) = delete;
 
      std::map<std::string, std::shared_ptr<SoftwareTriggerVariable>> m_variableNameToVariable;
    };
  }
}