VertexMapper.h

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/*
  Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
*/

// VertexMapper.h, (c) ATLAS Detector software
 
#ifndef TRKDETDESCRTOOLS_VERTEXMAPPER_H
#define TRKDETDESCRTOOLS_VERTEXMAPPER_H
 
// Amg
#include "GeoPrimitives/GeoPrimitives.h"
// Gaudi & Athena
#include "AthenaBaseComps/AthAlgTool.h"
#include "GaudiKernel/IIncidentListener.h"
// Trk
#include "TrkDetDescrInterfaces/IVertexMapper.h"
// ROOT
#include "TTree.h"
#include "TString.h"
 
#include "CxxUtils/checker_macros.h"
 
class TTree;
 
namespace Trk {
 
    class TrackingGeometry;

 
    class ATLAS_NOT_THREAD_SAFE VertexMapper : //mutable
      public AthAlgTool, virtual public IVertexMapper {
 
      public:

        VertexMapper(const std::string&,
                     const std::string&,
                     const IInterface*);

        virtual ~VertexMapper();

        StatusCode initialize();
        
        StatusCode finalize();

        MappedVertex mapToLocal(const Amg::Vector3D& vertex) const;

        void handle( const Incident& inc );
 
      private:
          
        StatusCode  updateTrackingGeometry() const;                                       
        
        const TrackingGeometry& trackingGeometry() const;          
 
        mutable const TrackingGeometry*                      m_trackingGeometry;          
        std::string                                          m_trackingGeometryName;      
 
    };
    
    inline const Trk::TrackingGeometry& VertexMapper::trackingGeometry() const {
        if (!m_trackingGeometry && updateTrackingGeometry().isFailure()){
            ATH_MSG_FATAL("Could not load TrackingGeometry with name '" << m_trackingGeometryName << "'. Aborting." );
            throw GaudiException("VertexMapper", "Problem with TrackingGeometry loading.", StatusCode::FAILURE);
        }
        return (*m_trackingGeometry);
    }
 
} // end of namespace
 
#endif // TRKDETDESCRTOOLS_VERTEXMAPPER_H