PFEGamFlowElementAssoc.h

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
/*
 * PFEGamFlowElementAssoc.h
 * Header file for class PFEGamFlowElementAssoc
 *
 *  Created on: 13.03.19
 *      Author: J. C. MacDonald & Upgraded by M.T. Anthony
 */
 
#ifndef PFEGAMFLOWELEMENTASSOC_H
#define PFEGAMFLOWELEMENTASSOC_H
 
#include "AthenaBaseComps/AthAlgorithm.h"
#include "AthenaBaseComps/AthReentrantAlgorithm.h"
#include "GaudiKernel/ToolHandle.h"
 
#include "xAODEgamma/ElectronContainer.h"
#include "xAODEgamma/PhotonContainer.h"
 
#include "StoreGate/WriteDecorHandle.h"
#include "xAODPFlow/FlowElementContainer.h"
class PFEGamFlowElementAssoc : public AthReentrantAlgorithm {
 
public:
  using AthReentrantAlgorithm::AthReentrantAlgorithm;
 
  PFEGamFlowElementAssoc(const std::string& name, ISvcLocator* pSvcLocator);
 
  virtual ~PFEGamFlowElementAssoc();
 
  virtual StatusCode initialize();
  virtual StatusCode execute(const EventContext & ctx) const;
  virtual StatusCode finalize();
 
private:
  //instantiate ReadHandle for the Photon/Electron
  SG::ReadHandleKey<xAOD::ElectronContainer>m_electronReadHandleKey{this,"ElectronContainer","Electrons","ReadHandleKey for ElectronContainer"};
 
  SG::ReadHandleKey<xAOD::PhotonContainer>m_photonReadHandleKey{this,"PhotonContainer","Photons","ReadHandleKey for PhotonContainer"};
 
  //Readhandles for FlowElements.
  SG::ReadHandleKey<xAOD::FlowElementContainer> m_neutralFEReadHandleKey{this,"JetEtMissNeutralFlowElementContainer","JetETMissNeutralParticleFlowObjects","ReadHandleKey for neutral FlowElements"};
 
  SG::ReadHandleKey<xAOD::FlowElementContainer> m_chargedFEReadHandleKey{this,"JetEtMissChargedFlowElementContainer","JetETMissChargedParticleFlowObjects","ReadHandleKey for charged FlowElements"};
 

  SG::WriteDecorHandleKey<xAOD::ElectronContainer> m_electronNeutralFEWriteDecorKey{this,"ElectronNeutralFEDecorKey",m_electronReadHandleKey,"neutralFELinks","Output key for electron link to neutral FE"};
  SG::WriteDecorHandleKey<xAOD::ElectronContainer> m_electronChargedFEWriteDecorKey{this,"ElectronChargedFEDecorKey",m_electronReadHandleKey,"chargedFELinks","Output key for electron link to charged FE"};

 
  SG::WriteDecorHandleKey<xAOD::FlowElementContainer> m_neutralFEElectronWriteDecorKey{this,"NeutralFEElectronDecorKey",m_neutralFEReadHandleKey,"FE_ElectronLinks","Output key for link from charged FE to electron"};

  SG::WriteDecorHandleKey<xAOD::FlowElementContainer> m_chargedFEElectronWriteDecorKey{this,"ChargedFEElectronDecorKey",m_chargedFEReadHandleKey,"FE_ElectronLinks","Output key for link from charged FE to electron"};
 

  SG::WriteDecorHandleKey<xAOD::PhotonContainer> m_photonNeutralFEWriteDecorKey{this,"PhotonNeutralFEDecorKey",m_photonReadHandleKey,"neutralFELinks","Output key for photon link to neutral FE"};
  SG::WriteDecorHandleKey<xAOD::PhotonContainer> m_photonChargedFEWriteDecorKey{this,"PhotonChargedFEDecorKey",m_photonReadHandleKey,"chargedFELinks","Output key for photon link to charged FE"};
  SG::WriteDecorHandleKey<xAOD::FlowElementContainer> m_neutralFEPhotonWriteDecorKey{this,"NeutralFEPhotonDecorKey",m_neutralFEReadHandleKey,"FE_PhotonLinks","Output key for link from neutral FE to photon"};
  SG::WriteDecorHandleKey<xAOD::FlowElementContainer> m_chargedFEPhotonWriteDecorKey{this,"ChargedFEPhotonDecorKey",m_chargedFEReadHandleKey,"FE_PhotonLinks","Output key for link from charged FE to photon"};
 
 
};
 
#endif // PFEGamFlowElementAssoc