/afs/hep.man.ac.uk/u/markowen/ATLAS/SFrameProof/2011EPS/topUtils/topUtils/CalibrationDataInterfaceROOT.h

// CalibrationDataInterfaceROOT.h, (c) ATLAS Detector software

#ifndef ANALYSISCALIBRATIONDATAINTERFACEROOT_H
#define ANALYSISCALIBRATIONDATAINTERFACEROOT_H

#include "topUtils/CalibrationDataInterfaceBase.h"
#include "TObject.h"
#include "Rtypes.h"
#include <vector>
#include <string>
#include <map>
#include <utility>

class TObject;
class TFile;

namespace Analysis 
{

  // Package all jet variables into a single structure

  struct CalibrationDataVariables {
    std::string jetAuthor;
    double jetPt;
    double jetEta;
  };

  enum Uncertainty { None, Total, Statistical, Systematic };

  class CalibrationDataInterfaceROOT: public CalibrationDataInterfaceBase
    {
    public:
      CalibrationDataInterfaceROOT(const std::string& taggerName, std::string configname = "BTagCalibration.env");

      virtual ~CalibrationDataInterfaceROOT();
      
      CalibResult getEfficiency (const CalibrationDataVariables& variables, const std::string& label,
                                 const std::string& OP, Uncertainty unc = None) const;
      
      CalibResult getMCEfficiency (const CalibrationDataVariables& variables, const std::string& label,
                                   const std::string& OP, Uncertainty unc = None) const;
      
      CalibResult getScaleFactor (const CalibrationDataVariables& variables, const std::string& label,
                                  const std::string& OP, Uncertainty unc = None) const;

      CalibResult getInefficiencyScaleFactor(const CalibrationDataVariables& variables, const std::string& label,
                                             const std::string& OP, Uncertainty unc = None) const;

      CalibResult getInefficiency (const CalibrationDataVariables& variables, const std::string& label,
                                   const std::string& OP, Uncertainty unc = None) const;

      CalibResult getMCInefficiency (const CalibrationDataVariables& variables, const std::string& label,
                                     const std::string& OP, Uncertainty unc = None) const;
      
    private:

      void retrieveFunctionArguments(const CalibrationDataVariables& variables,
                                     const std::string& object, Double_t* x) const;

      TFile* m_fileEff;
      TFile* m_fileSF;

      std::map<std::string, std::string> m_aliases;

      mutable std::map<std::string, TObject*> m_objects;

      TObject* retrieveTObject(const std::string& name, bool eff) const;

      std::string getAlias(const std::string& author) const;

      std::string fullName(const std::string& author, const std::string& name) const;

    }; 
} // end of namespace

#endif 

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