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 http://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_*/