Acts/ActsMaterial/src/MaterialMapping.h

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef ACTSMATERIAL_MATERIALMAPPING_H
#define ACTSMATERIAL_MATERIALMAPPING_H
 
 
#include "AthenaBaseComps/AthReentrantAlgorithm.h"
 
#include "GaudiKernel/ServiceHandle.h"
#include "StoreGate/ReadHandleKey.h"
#include "StoreGate/WriteHandleKey.h"
#include "AsgTools/ToolHandleArray.h"
#include "ActsGeometryInterfaces/ITrackingGeometrySvc.h"
#include "ActsGeometry/RecordedMaterialTrackCollection.h"
#include "ActsMaterial/IMaterialWriterTool.h"
#include "Acts/Material/MaterialMapper.hpp"
 
namespace ActsTrk {
 
    class MaterialMapping : public AthReentrantAlgorithm  {
        public:
            MaterialMapping(const std::string &name, ISvcLocator *pSvcLocator);
            virtual StatusCode initialize() override;
            virtual StatusCode execute (const EventContext& ctx) const override;
            virtual StatusCode finalize() override;
            virtual ~MaterialMapping();
 
        private:

            ToolHandleArray<IMaterialWriterTool> m_materialMapWriters{this, "MaterialMapWriters", {}, "The material map writes"};

            std::shared_ptr<Acts::MaterialMapper> m_materialMapper;

            std::unique_ptr<Acts::MaterialMapper::State> m_mappingState ATLAS_THREAD_SAFE = {};

            ServiceHandle<ActsTrk::ITrackingGeometrySvc> m_trackingGeometrySvc{this, "TrackingGeometrySvc","ActsTrackingGeometrySvc", "The ACTS geometry service for the geometry context"};

            SG::ReadHandleKey<RecordedMaterialTrackCollection> m_materialTrackCollectionKey {this, "MaterialTrackCollectionKey", "InputMaterialTracks", "Name of the input RecordedMaterialTrackCollection"};
            SG::WriteHandleKey<RecordedMaterialTrackCollection> m_mappedMaterialTrackCollectionKey {this, "MappedMaterialTrackCollectionKey", "OutputMappedMaterialTracks", "Name of the output mapped RecordedMaterialTrackCollection"};
            SG::WriteHandleKey<RecordedMaterialTrackCollection> m_unmappedMaterialTrackCollectionKey {this, "UnmappedMaterialTrackCollectionKey", "OutputUnmappedMaterialTracks", "Name of the output unmapped RecordedMaterialTrackCollection"};
    };
}
 
#endif