TrackHistory.h

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#ifndef TrackHistory_h
#define TrackHistory_h
 
#include "DataFormats/TrackReco/interface/TrackFwd.h"
 
#include "FWCore/Framework/interface/ConsumesCollector.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
 
#include "SimDataFormats/Associations/interface/TrackToTrackingParticleAssociator.h"
#include "SimTracker/TrackHistory/interface/HistoryBase.h"
#include "SimTracker/TrackHistory/interface/Utils.h"
 
class TrackHistory : public HistoryBase {
public:
  /* Creates a TrackHistory with association given by pset.
 
     /param[in] pset with the configuration values
  */
  TrackHistory(const edm::ParameterSet &, edm::ConsumesCollector &&);
 
  void newEvent(const edm::Event &, const edm::EventSetup &);
 
  /* Return false when the history cannot be determined upto a given depth.
     If not depth is pass to the function no restriction are apply to it.
 
     /param[in] TrackingParticleRef of a simulated track
     /param[in] depth of the track history
     /param[out] boolean that is true when history can be determined
  */
  bool evaluate(TrackingParticleRef tpr) {
    if (enableSimToReco_) {
      std::pair<reco::TrackBaseRef, double> result = match(tpr, simToReco_, bestMatchByMaxValue_);
      recotrack_ = result.first;
      quality_ = result.second;
    }
    return HistoryBase::evaluate(tpr);
  }
 
  /* Return false when the track association is not possible (fake track).
 
     /param[in] TrackRef to a reco::track
     /param[out] boolean that is false when a fake track is detected
  */
  bool evaluate(reco::TrackBaseRef);
 
  const reco::TrackBaseRef &recoTrack() const { return recotrack_; }
 
  // return the TrackingParticle to which the Track was matched
  const std::pair<TrackingParticleRef, double> getMatchedTrackingParticle() const {
    std::pair<TrackingParticleRef, double> result;
    result.first = trackingParticle_;
    result.second = quality_;
 
    return result;
  }
 
  double quality() const { return quality_; }
 
private:
  bool newEvent_;
 
  bool bestMatchByMaxValue_;
 
  bool enableRecoToSim_, enableSimToReco_;
 
  double quality_;
 
  edm::InputTag trackProducer_;
 
  edm::InputTag trackingTruth_;
 
  edm::InputTag trackAssociator_;
 
  reco::TrackBaseRef recotrack_;
 
  TrackingParticleRef trackingParticle_;
 
  reco::RecoToSimCollection recoToSim_;
 
  reco::SimToRecoCollection simToReco_;
};
 
#endif