ThinNegativeEnergyNeutralPFOsAlg.h

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/*
  Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef THINNINGUTILS_ThinNegativeEnergyNeutralPFOsAlg_H
#define THINNINGUTILS_ThinNegativeEnergyNeutralPFOsAlg_H 1

 
// STL includes
#include <string>
 
// FrameWork includes
#include "AthenaBaseComps/AthReentrantAlgorithm.h"
#include "GaudiKernel/ServiceHandle.h"
#include "GaudiKernel/ToolHandle.h"
#include "StoreGate/ThinningHandleKey.h"
 
#include "xAODPFlow/FlowElementContainer.h"
 
class ThinNegativeEnergyNeutralPFOsAlg final : public AthReentrantAlgorithm
{
public:
  ThinNegativeEnergyNeutralPFOsAlg(const std::string& name,
                                   ISvcLocator* pSvcLocator);

  virtual ~ThinNegativeEnergyNeutralPFOsAlg() = default;

  virtual StatusCode initialize() override final;

  virtual StatusCode execute(const EventContext& ctx) const override final;

  virtual StatusCode finalize() override final;
 
private:
  StringProperty m_streamName{
    this,
    "StreamName",
    "",
    "Name of the stream for which thinning is being done."
  };

  BooleanProperty m_doThinning{
    this,
    "ThinNegativeEnergyNeutralPFOs",
    true,
    "Should the thinning of negative energy neutral PFOs be run?"
  };

  SG::ThinningHandleKey<xAOD::FlowElementContainer> m_neutralPFOsKey{
    this,
    "NeutralPFOsKey",
    "JetETMissNeutralParticleFlowObjects",
    "StoreGate key for the FlowElementContainer to be thinned"
  };
  SG::ThinningHandleKey<xAOD::FlowElementContainer> m_LCNeutralPFOsKey{
    this,
    "LCNeutralPFOsKey",
    "JetETMissLCNeutralParticleFlowObjects",
    "StoreGate key for the LC FlowElementContainer to be thinned (if any)"
  };

  mutable std::atomic<unsigned long> m_nEventsProcessed;
  mutable std::atomic<unsigned long> m_nNeutralPFOsProcessed;
  mutable std::atomic<unsigned long> m_nNeutralPFOsThinned;
};
 
#endif //> !THINNINGUTILS_ThinNegativeEnergyNeutralPFOsAlg_H