/data/refman/pasoursint/CMSSW_4_1_8_patch9/src/RecoParticleFlow/PFClusterTools/interface/Calibrator.h

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#ifndef CALIBRATOR_HH_
#define CALIBRATOR_HH_

#include "RecoParticleFlow/PFClusterTools/interface/DetectorElement.h"
#include "RecoParticleFlow/PFClusterTools/interface/ParticleDeposit.h"
#include "RecoParticleFlow/PFClusterTools/interface/PFToolsException.h"

#include <map>
#include <vector>
#include <boost/shared_ptr.hpp>

namespace pftools {

class Calibrator {
public:

        Calibrator();
        virtual ~Calibrator();

        void addDetectorElement(DetectorElementPtr const de);

        void addParticleDeposit(ParticleDepositPtr pd);

        /*
         * Returns the calibration coefficient for each detector element, using data
         * from all particle depositions stored within.
         */
        std::map<DetectorElementPtr, double> getCalibrationCoefficients() throw(
                        PFToolsException&) {
                return getCalibrationCoefficientsCore();
        }
        
        /* 
         * Here we use the virtual constructor idea to allow for plug-and-play Calibrators
         * See https://www.parashift.com/c++-faq-lite/virtual-functions.html#faq-20.8
         */
        virtual Calibrator* clone() const = 0;
        virtual Calibrator* create() const = 0;

        int hasParticles() const {
                return myParticleDeposits.size();
        }
        
        std::vector<ParticleDepositPtr> getParticles() {
                return myParticleDeposits;
        }



protected:
        virtual std::map<DetectorElementPtr, double>
                        getCalibrationCoefficientsCore() throw(PFToolsException&);

        std::vector<DetectorElementPtr> myDetectorElements;
        std::vector<ParticleDepositPtr> myParticleDeposits;
};

typedef boost::shared_ptr<Calibrator> CalibratorPtr;

}

#endif /*CALIBRATOR_HH_*/