ShowerCalibrationGalore.h

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#ifndef LAREXAMPLES_SERVICES_SHOWERCALIBRATIONGALORE_PROVIDERS_SHOWERCALIBRATIONGALORE_H
#define LAREXAMPLES_SERVICES_SHOWERCALIBRATIONGALORE_PROVIDERS_SHOWERCALIBRATIONGALORE_H


#include "larcorealg/CoreUtils/UncopiableAndUnmovableClass.h"
#include "lardataobj/RecoBase/Shower.h"

// C/C++ standard libraries
#include <string>


namespace lar {
   namespace example {
      
      class ShowerCalibrationGalore
         : protected lar::UncopiableAndUnmovableClass
      {
            public:
         
         //---------------------------------------------------------------------
         struct Correction_t {
            float factor; 
            float error;  
            
            Correction_t(float val = 1., float err = 0.)
              : factor(val), error(err)
              {}
            
            bool operator== (Correction_t const& as) const
              { return (factor == as.factor) && (error == as.error); }
            bool operator!= (Correction_t const& as) const
              { return (factor != as.factor) || (error != as.error); }
         }; // Correction_t
         
         using PDGID_t = int;
         
         static constexpr PDGID_t unknownID = 0;
         
         
         //---------------------------------------------------------------------
         // Virtual destructor
         virtual ~ShowerCalibrationGalore() = default;
         
         
         
         //---------------------------------------------------------------------
         virtual float correctionFactor
           (recob::Shower const& shower, PDGID_t PDGID = unknownID) const = 0;
         
         virtual Correction_t correction
           (recob::Shower const& shower, PDGID_t PDGID = unknownID) const = 0;
         
         
         
         
         virtual std::string report() const = 0;
         
         //---------------------------------------------------------------------
         
      }; // class ShowerCalibrationGalore
      
      
      template <typename Stream>
      Stream& operator<<
         (Stream&& out, ShowerCalibrationGalore::Correction_t const& corr)
         {
            out << corr.factor << " +/- " << corr.error;
            return out;
         } // operator<< (Correction_t)
      
      
   } // namespace example
} // namespace lar


#endif // LAREXAMPLES_SERVICES_SHOWERCALIBRATIONGALORE_PROVIDERS_SHOWERCALIBRATIONGALORE_H