TrigPrescalesAlg.h

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/

 
 
#ifndef TRIGGER_ANALYSIS_ALGORITHMS__TRIG_PRESCALES_ALG_H
#define TRIGGER_ANALYSIS_ALGORITHMS__TRIG_PRESCALES_ALG_H
 
#include <functional>
#include <unordered_map>
 
#include <AnaAlgorithm/AnaAlgorithm.h>
#include <AsgAnalysisInterfaces/IPileupReweightingTool.h>
#include <AsgTools/PropertyWrapper.h>
 
namespace CP
{
  constexpr float invalidTriggerPrescale () {return -1;}
 
 

 
  class TrigPrescalesAlg final : public EL::AnaAlgorithm
  {
  public:
    using EL::AnaAlgorithm::AnaAlgorithm;
    StatusCode initialize () override;
    StatusCode execute (const EventContext& ctx) override;
 

  private:
    ToolHandle<IPileupReweightingTool> m_pileupReweightingTool {this, "pileupReweightingTool", "PileupReweightingTool", "the pileup reweighting tool to be used"};

  private:
    Gaudi::Property<std::vector<std::string>> m_trigList {this, "triggers", {}, "trigger list"};

  private:
    Gaudi::Property<std::vector<std::string>> m_trigListAll {this, "triggersAll", {}, "all trigger list"};

  private:
    Gaudi::Property<std::string> m_trigFormula {this, "triggersFormula", "", "produce prescale based on formula instead of per trigger, e.g. (trigA||trigB)"};

  private:
    std::vector<std::function<float(const xAOD::EventInfo *, const std::string &)>> m_prescaleFunctions;

  private:
    Gaudi::Property<std::string> m_prescaleDecoration {this, "prescaleDecoration", "", "decoration to store prescales"};

  private:
    Gaudi::Property<bool> m_prescaleMC {this, "prescaleMC", false, "whether to do prescaling of MC instead of unprescaling of data"};

  private:
    std::vector<SG::Decorator<float>> m_prescaleAccessors;

  private:
    Gaudi::Property<std::string> m_selectionDecoration {this, "selectionDecoration", "", "the decoration the trigger pass status"};

  private:
    std::unordered_map<std::string, SG::ConstAccessor<bool>> m_selectionAccessors;
  };
}
 
#endif