PFMatchInterfaces.h

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
/*
 * PFMatchInterfaces.h
 *
 *  Created on: 03.04.2014
 *      Author: tlodd
 */
 
#ifndef EFLOWREC_PFMATCHINTERFACES_H
#define EFLOWREC_PFMATCHINTERFACES_H
 
#include <vector>
#include <cassert>
 
#include "eflowUtil.h"
#include "eflowCaloRegions.h"
 
namespace PFMatch {
 
typedef eflowCalo::LAYER LayerType;
#define TrackLayer eflowCalo
 
/* The track and cluster abstract interface classes */
 
class ITrack {
protected:
  ITrack() { }
public:
  virtual ~ITrack() { }
 
  virtual eflowEtaPhiPosition etaPhiInLayer(LayerType layer) const = 0;
};
 
class ICluster {
protected:
  ICluster() { }
public:
  virtual ~ICluster () { }
 
  virtual double eta() const = 0;
  virtual double phi() const = 0;
  virtual double etaMean() const = 0;
  virtual double phiMean() const = 0;
  virtual double etaVariance() const = 0;
  virtual double phiVariance() const = 0;
  virtual bool calVarianceStatus() const = 0;
  //set  functions
  virtual void etaMean(double) = 0;
  virtual void phiMean(double) = 0;
  virtual void etaVariance(double) = 0;
  virtual void phiVariance(double) = 0;
  virtual void setCalVarianceStatus() = 0;
  //
  virtual unsigned int nCells() const = 0;
  virtual const std::vector<double>& cellPhi() const = 0;
  virtual const std::vector<double>& cellEta() const = 0;
};
 
 
/* Position base class */
 
class IPosition {
protected:
  IPosition() { }
public:
  virtual ~IPosition() { }
};
 
 
/* PositionProvider dummy base class */
 
class IPositionProvider {
protected:
  IPositionProvider() { }
public:
  virtual ~IPositionProvider() { }
};
 
/* PositionProviderInterface */
 
template <class ObjectType, class PositionType>
class PositionProvider: public IPositionProvider {
protected:
  PositionProvider() {}
 
public:
  virtual ~PositionProvider() {}
  virtual PositionType getPosition(ObjectType* cluster) const = 0;
 
};
 
template <class PositionType>
class ClusterPositionProvider: public PositionProvider<ICluster, PositionType> { };
 
template <class PositionType>
class TrackPositionProvider: public PositionProvider<ITrack, PositionType> { };
 
/* Distance calculator interface */
 
template<class TrackPositionType, class ClusterPositionType>
class DistanceCalculator {
protected:
  DistanceCalculator() { }
public:
  virtual ~DistanceCalculator() { }
 
  virtual double distanceBetween(const TrackPositionType& position1, const ClusterPositionType& position2) const = 0;
};
 
 
/* The distance provider */
 
class IDistanceProvider {
protected:
  IDistanceProvider() { }
public:
  virtual ~IDistanceProvider() { }
 
  virtual double distanceBetween(ITrack* track, ICluster* cluster) const = 0;
};
 
template<class TrackPositionType, class ClusterPositionType>
class DistanceProvider: public IDistanceProvider {
public:
  DistanceProvider(std::unique_ptr<IPositionProvider> trackPosition,
                   std::unique_ptr<IPositionProvider> clusterPosition,
                   std::unique_ptr<DistanceCalculator<TrackPositionType, ClusterPositionType> > distanceCalculator):
    // dynamic_cast to ensure that the right distance provider classes are received
    m_trackPosition(dynamic_cast<TrackPositionProvider<TrackPositionType>*>(trackPosition.release())),
    m_clusterPosition(dynamic_cast<ClusterPositionProvider<ClusterPositionType>*>(clusterPosition.release())),
    m_distanceCalculator(std::move(distanceCalculator)) {
    // in debug builds we check the pointer validity here to catch a problem early on
    assert(m_trackPosition.get());
    assert(m_clusterPosition.get());
    assert(m_distanceCalculator.get());
  }
  virtual ~DistanceProvider() {}
 
  double distanceBetween(ITrack* track, ICluster* cluster) const {
    TrackPositionProvider<TrackPositionType>* trackPositionProvider = m_trackPosition.get();
    ClusterPositionProvider<ClusterPositionType>* clusterPositionProvider = m_clusterPosition.get();
    return m_distanceCalculator->distanceBetween(trackPositionProvider->getPosition(track),clusterPositionProvider->getPosition(cluster));
  }
 
private:
  std::unique_ptr<TrackPositionProvider<TrackPositionType> > m_trackPosition;
  std::unique_ptr<ClusterPositionProvider<ClusterPositionType> > m_clusterPosition;
  std::unique_ptr<DistanceCalculator<TrackPositionType, ClusterPositionType> > m_distanceCalculator;
};
 
 
}
 
#endif /* PFMATCHINTERFACES_H_ */