Interface.h

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#ifndef ANP_INTERFACE_H
#define ANP_INTERFACE_H

// $Id: Interface.h,v 1.9 2008/02/09 19:15:19 rustem Exp $
//
// This is an interface class that allows a user to obtain
// data from PhysicsNtuple algorithms without explicitly
// including all necessary algorithms. This class contains
// 4 interface methods:
//
// 1) bool FillSnarl(TObject *record);
//       In this function record is NtpStRecord pointer,
//       it MUST be called once per snarl with current NtpStRecord.
//       Return false if failed to read NtpStRecord.
//
// 2) float GetVar(const std::string &vname, TObject *object) const;
//       This function returns internal PhysicsNtuple variables by name,
//       object must be a pointer to NtpSRTrack or NtpSREvent.
//
// 3) void Config(const Registry &reg)
//       Interface must be configured once with Registry configuration.
//
// 4) std::map<short, float> GetData(TObject *object);
//       This function is included mostly for backward compatibility and
//       internal use. It is no longer a recommended method to access 
//       PhysicsNtuple variables.
//

// C++
#include <string>
#include <map>

class DataBlock;
class Registry;
class TObject;

namespace Anp
{
   class Record;
   class RunAlgSnarl;
   class RunAlgStore;

   class Interface
   {
   public:
      
      Interface();
      ~Interface();     

      bool FillSnarl(TObject *record);

      float GetVar(const std::string &vname, TObject *object) const;

      void Config(const Registry &reg);

      const std::map<short, float> GetData(TObject *object) const;

   private:

      typedef std::map<std::string, int> KeyMap;

   private:

      RunAlgStore *fAlgStore;
      RunAlgSnarl *fAlgSnarl;
      DataBlock   *fBlock;
      Record      *fRecord;

      bool fPrint;
      bool fQuiet;
      bool fValid;

      unsigned int fNSnarlPass;
      unsigned int fNSnarlFail;

      mutable unsigned int fNEvent;
      mutable unsigned int fNTrack;
      
      double fDefault;
      KeyMap fKeys;
   };
}

#endif

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