MeasTruthAssocMapProvider.h

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
#ifndef MUONTRUTHALGSR4_MeasTruthAssocMapProvider_H
#define MUONTRUTHALGSR4_MeasTruthAssocMapProvider_H
 
#include "AthenaBaseComps/AthReentrantAlgorithm.h"
 
#include "xAODMuonPrepData/MuonMeasurementContainer.h"
#include "xAODTruth/TruthParticleContainer.h"
#include "ActsEvent/MeasurementToTruthParticleAssociation.h"
 
 
#include "StoreGate/ReadHandleKey.h"
#include "StoreGate/ReadDecorHandleKey.h"
#include "StoreGate/WriteHandleKey.h"
 
 
namespace MuonR4 {
    class MeasTruthAssocMapProvider : public AthReentrantAlgorithm {
        public:
            using AthReentrantAlgorithm::AthReentrantAlgorithm;
            virtual StatusCode initialize() override final;
            virtual StatusCode execute(const EventContext& ctx) const override final;
        private:
            SG::ReadHandleKey<xAOD::MuonMeasurementContainer> m_readKey{this, "PrdContainer", "SetMe"};
            SG::ReadDecorHandleKey<xAOD::MuonMeasurementContainer> m_linkKey{this, "LinkKey", m_readKey, 
                                                                             "simHitLink"};

            SG::ReadHandleKey<xAOD::TruthParticleContainer> m_truthKey{this, "TruthKey", "MuonTruthParticles"};
            SG::ReadDecorHandleKey<xAOD::TruthParticleContainer> m_segLinkKey{this, "SegLinkKey", m_truthKey,
                                                                              "truthSegmentLinks"};

            SG::WriteHandleKey<ActsTrk::MeasurementToTruthParticleAssociation> m_writeKey{this, "AssociationMap", ""};
    };
 
}
 
 
#endif