SegmentTrackTruthVarSet.h

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
#pragma once
 
#include <tracking/trackFindingCDC/varsets/VarSet.h>
#include <tracking/trackFindingCDC/varsets/VarNames.h>
 
#include <tracking/trackFindingCDC/mclookup/CDCMCManager.h>
 
#include <tracking/trackFindingCDC/filters/segmentTrack/BaseSegmentTrackFilter.h>
 
namespace Belle2 {
  namespace TrackFindingCDC {

    constexpr
    static char const* const segmentTrackTruthVarNames[] = {
      "belongs_to_same_track_truth",
      "segment_is_fake_truth",
      "segment_purity_truth",
      "track_purity_truth",
      "truth",
    };

    struct SegmentTrackTruthVarNames : public VarNames<BaseSegmentTrackFilter::Object> {

      static const size_t nVars = size(segmentTrackTruthVarNames);

      static constexpr char const* getName(int iName)
      {
        return segmentTrackTruthVarNames[iName];
      }
    };

    class SegmentTrackTruthVarSet : public VarSet<SegmentTrackTruthVarNames> {
 
    public:
      bool extract(const BaseSegmentTrackFilter::Object* testPair) final;
 
 
      void initialize() override
      {
        CDCMCManager::getInstance().requireTruthInformation();
        VarSet<SegmentTrackTruthVarNames>::initialize();
      }
 
      void beginEvent() override
      {
        CDCMCManager::getInstance().fill();
        VarSet<SegmentTrackTruthVarNames>::beginEvent();
      }
    };
  }
}