MuonToTruthAssocAlg.h

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef MUONTRUTHALGSR4_MUONTRUTHMATCHINGALG_H
#define MUONTRUTHALGSR4_MUONTRUTHMATCHINGALG_H
 
#include "AthenaBaseComps/AthReentrantAlgorithm.h"
 
#include "xAODTruth/TruthParticleContainer.h"
#include "xAODMuon/MuonContainer.h"
 
#include "StoreGate/ReadHandleKey.h"
#include "StoreGate/ReadDecorHandleKeyArray.h"
#include "StoreGate/ReadHandleKeyArray.h"
#include "StoreGate/WriteDecorHandleKey.h"
 
namespace MuonR4{
    class MuonToTruthAssocAlg : public AthReentrantAlgorithm{
        public:
            using AthReentrantAlgorithm::AthReentrantAlgorithm;
            virtual StatusCode initialize() override final;
            virtual StatusCode execute(const EventContext& ctx) const override final;
        private:
            SG::ReadHandleKey<xAOD::TruthParticleContainer> m_truthKey{this, "TruthKey", "MuonTruthParticles"};
            SG::ReadHandleKey<xAOD::MuonSegmentContainer> m_segmentKey{this, "SegmentKey", "MuonSegmentsFromR4"};
            SG::ReadHandleKeyArray<xAOD::TrackParticleContainer> m_trkKeys{this, "TrackKeys", {}};
            SG::ReadDecorHandleKeyArray<SG::AuxVectorBase> m_decorKeys{this, "DeocrationKeys", {}};
            SG::ReadHandleKey<xAOD::MuonContainer> m_muonKey{this, "MuonKey", "MuonsR4"};
            SG::WriteDecorHandleKey<xAOD::MuonContainer> m_truthPartLinkKey{this, "TruthPartLinkKey", m_muonKey, "truthParticleLink"};
    };
}
 
#endif