/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_5_3_13_patch3/src/TrackingTools/TrackRefitter/interface/RefitDirection.h

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#ifndef TrackingTools_TrackRefitter_RefitDirection_H
#define TrackingTools_TrackRefitter_RefitDirection_H

#include "DataFormats/TrajectorySeed/interface/PropagationDirection.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"

class RefitDirection {

public:
  
  enum GeometricalDirection{insideOut, outsideIn, undetermined};
  
  RefitDirection(){
    thePropagationDirection = anyDirection;
    theGeoDirection = undetermined;
  }

  RefitDirection(std::string& type){ 

    thePropagationDirection = anyDirection;
    theGeoDirection = undetermined;
 
    if (type == "alongMomentum") thePropagationDirection = alongMomentum;
    else if (type == "oppositeToMomentum") thePropagationDirection = oppositeToMomentum;
    else if (type == "insideOut") theGeoDirection = insideOut;
    else if (type == "outsideIn") theGeoDirection = outsideIn;
    else 
      throw cms::Exception("RefitDirection") 
        <<"Wrong refit direction chosen in TrackTransformer ParameterSet"
        << "\n"
        << "Possible choices are:"
        << "\n"
        << "RefitDirection = [alongMomentum, oppositeToMomentum, insideOut, outsideIn]";
  }
  
  virtual ~RefitDirection(){};

  // Operations
  inline GeometricalDirection geometricalDirection() const {
    if(theGeoDirection == undetermined) LogTrace("Reco|TrackingTools|TrackTransformer") << "Try to use undetermined geometrical direction";
    return theGeoDirection;
  }
  inline PropagationDirection propagationDirection() const {
    if(thePropagationDirection == anyDirection) LogTrace("Reco|TrackingTools|TrackTransformer") << "Try to use anyDirection as propagation direction";
    return thePropagationDirection;
  }
  
protected:
  
private:
  GeometricalDirection theGeoDirection;
  PropagationDirection thePropagationDirection;
};
#endif