ExtrapolateMuonToIPTool.h

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/*
  Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef EXTRAPOLATEMUONTOIPTOOL_H
#define EXTRAPOLATEMUONTOIPTOOL_H
 
#include <atomic>
 
#include "AthenaBaseComps/AthAlgTool.h"
#include "GaudiKernel/ServiceHandle.h"
#include "GaudiKernel/ToolHandle.h"
#include "MuonRecHelperTools/IMuonEDMHelperSvc.h"
#include "MuonRecHelperTools/MuonEDMPrinterTool.h"
#include "MuonRecToolInterfaces/IMuonTrackExtrapolationTool.h"
#include "TrkExInterfaces/IExtrapolator.h"
#include "TrkToolInterfaces/ITrackSummaryTool.h"

class ExtrapolateMuonToIPTool : virtual public Muon::IMuonTrackExtrapolationTool, public AthAlgTool {
public:
    ExtrapolateMuonToIPTool(const std::string&, const std::string&, const IInterface*);

    virtual ~ExtrapolateMuonToIPTool() = default;

    virtual StatusCode initialize() override;

    virtual StatusCode finalize() override;

    std::unique_ptr<TrackCollection> extrapolate(const TrackCollection& muonTracks, const EventContext& ctx) const override;

    std::unique_ptr<Trk::Track> extrapolate(const Trk::Track& muonTrack, const EventContext& ctx) const override;
 
private:
    const Trk::TrackParameters* findMeasuredParametersClosestToIP(const Trk::Track& track) const;
 
    std::unique_ptr<const Trk::Perigee> createPerigee(const Trk::TrackParameters& pars, const EventContext& ctx) const;
 
    ToolHandle<Trk::IExtrapolator> m_extrapolator{
        this,
        "Extrapolator",
        "Trk::Extrapolator/AtlasExtrapolator",
        "Extrapolator",
    };  
    ToolHandle<Trk::IExtrapolator> m_muonExtrapolator{
        this,
        "MuonExtrapolator",
        "Trk::Extrapolator/MuonExtrapolator",
        "MuonExtrapolator",
    };  
    PublicToolHandle<Muon::MuonEDMPrinterTool> m_printer{
        this,
        "Printer",
        "Muon::MuonEDMPrinterTool/MuonEDMPrinterTool",
        "muon EDM printer tool",
    };  
    ToolHandle<Trk::ITrackSummaryTool> m_trackSummary{
        this,
        "TrackSummaryTool",
        "Trk::TrackSummaryTool/MuidTrackSummaryTool",
    };
 
    ServiceHandle<Muon::IMuonEDMHelperSvc> m_edmHelperSvc{
        this,
        "edmHelper",
        "Muon::MuonEDMHelperSvc/MuonEDMHelperSvc",
        "Handle to the service providing the IMuonEDMHelperSvc interface",
    };  
 
    mutable std::atomic_uint m_nextrapolations{0};
    mutable std::atomic_uint m_failedClosestPars{0};
    mutable std::atomic_uint m_failedExtrapolationLowMom{0};
    mutable std::atomic_uint m_failedExtrapolationHighMom{0};
    mutable std::atomic_uint m_failedPerigeeCreation{0};
};
 
#endif  // EXTRAPOLATEMUONTOIPTOOL_H