ActsVolumeIdToDetectorElementCollectionMappingAlg.h

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef ACTSTRK_ACTSGEOMETRYIDTODETECTORELEMENTMAPPINGALG_H
#define ACTSTRK_ACTSGEOMETRYIDTODETECTORELEMENTMAPPINGALG_H
 
#include "AthenaBaseComps/AthCondAlgorithm.h"
#include "StoreGate/WriteCondHandleKey.h"
#include "StoreGate/CondHandleKeyArray.h"
 
#include "ActsGeometryInterfaces/ITrackingGeometrySvc.h"
#include "ActsGeometry/ActsVolumeIdToDetectorElementCollectionMap.h"
#include "InDetReadoutGeometry/SiDetectorElementCollection.h"
 
namespace ActsTrk {
  class ActsVolumeIdToDetectorElementCollectionMappingAlg : public AthCondAlgorithm {
    public:
      ActsVolumeIdToDetectorElementCollectionMappingAlg(const std::string &name, ISvcLocator *pSvcLocator);
      virtual ~ActsVolumeIdToDetectorElementCollectionMappingAlg();
 
      StatusCode initialize() override;
      StatusCode execute(const EventContext &ctx) const override;
 
    private:
     void createDetectorElementToVolumeIdMap(const Acts::TrackingGeometry &acts_tracking_geometry,
                                             std::unordered_map<unsigned long long,
                                                                unsigned int> &detector_element_to_volume_id) const;
 
     ServiceHandle<ActsTrk::ITrackingGeometrySvc> m_trackingGeometrySvc{this, "TrackingGeometrySvc", "ActsTrackingGeometrySvc"};
 
    SG::ReadCondHandleKeyArray<InDetDD::SiDetectorElementCollection> m_detEleCollKeys
       {this, "DetectorElementsKeys", {}, "Keys of input SiDetectorElementCollection"};
 
    SG::WriteCondHandleKey<ActsTrk::ActsVolumeIdToDetectorElementCollectionMap> m_volumeIdToDetectorElementCollMapKey
       {this, "ActsVolumeIdToDetectorElementCollectionMap", "ActsVolumeIdToDetectorElementCollectionMap",
        "Map which associates Acts geometry volume IDs to detector element collections."};
  };
}
#endif