GsfVertexUpdator.h

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#ifndef GsfVertexUpdator_H
#define GsfVertexUpdator_H

#include "RecoVertex/VertexPrimitives/interface/VertexUpdator.h"
#include "RecoVertex/KalmanVertexFit/interface/KalmanVertexUpdator.h"
#include "RecoVertex/GaussianSumVertexFit/interface/GsfVertexWeightCalculator.h"
#include "RecoVertex/GaussianSumVertexFit/interface/GsfVertexMerger.h"

class GsfVertexUpdator: public VertexUpdator<5> {

public:

  typedef CachingVertex<5>::RefCountedVertexTrack RefCountedVertexTrack;
  typedef VertexTrack<5>::RefCountedLinearizedTrackState RefCountedLinearizedTrackState;

  GsfVertexUpdator(bool limit = false, const GsfVertexMerger * merger = 0);
   CachingVertex<5> add(const CachingVertex<5> & oldVertex,
        const RefCountedVertexTrack track) const;

   CachingVertex<5> remove(const CachingVertex<5> & oldVertex,
        const RefCountedVertexTrack track) const;

   VertexUpdator<5> * clone() const
   {
    return new GsfVertexUpdator(* this);
   }


private:

  typedef std::vector<VertexState> VSC;
  typedef std::vector<RefCountedLinearizedTrackState> LTC;
  typedef std::pair<double, double> WeightChi2Pair;
  typedef std::pair<VertexState, WeightChi2Pair> VertexComponent;
  typedef std::pair<VertexState, double> VertexChi2Pair;

  VertexComponent createNewComponent(const VertexState & oldVertex,
     const RefCountedLinearizedTrackState linTrack, float weight, int sign) const;

  VertexChi2Pair assembleVertexComponents(
     const std::vector<VertexComponent> & newVertexComponents) const;

  bool limitComponents;
  DeepCopyPointerByClone<GsfVertexMerger> theMerger;
  KalmanVertexUpdator<5> kalmanVertexUpdator;
  GsfVertexWeightCalculator theWeightCalculator;
};

#endif