TauTrackRNNClassifier.h

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/*
  Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef TAURECTOOLS_TAUTRACKRNNCLASSIFIER_H
#define TAURECTOOLS_TAUTRACKRNNCLASSIFIER_H
 
// ASG include(s)
#include "AsgTools/AsgTool.h"
#include "AsgTools/ToolHandleArray.h"
#include "AsgDataHandles/ReadHandleKey.h"
 
// xAOD include(s)
#include "xAODTau/TauJet.h"
#include "xAODTau/TauTrackContainer.h"
#include "xAODTracking/VertexContainer.h"
 
// local include(s)
#include "tauRecTools/TauRecToolBase.h"
#include "tauRecTools/lwtnn/LightweightGraph.h"
#include "tauRecTools/lwtnn/parse_json.h"
 
#include <memory>
 
namespace tauRecTools
{
  
class TrackRNN;
 
// We currently allow several input types
// The "ValueMap" is for simple rank-1 inputs
typedef std::map<std::string, double> ValueMap;
// The "VectorMap" is for sequence inputs
typedef std::map<std::string, std::vector<double> > VectorMap;
 
typedef std::map<std::string, ValueMap> NodeMap;
typedef std::map<std::string, VectorMap> SeqNodeMap;
 
//______________________________________________________________________________
class TauTrackRNNClassifier
  : public TauRecToolBase
{
public:
 
  ASG_TOOL_CLASS2( TauTrackRNNClassifier, TauRecToolBase, ITauToolBase )
 
  TauTrackRNNClassifier(const std::string& name="TauTrackRNNClassifier");
  ~TauTrackRNNClassifier();
 
  // retrieve all track classifier sub tools
  virtual StatusCode initialize() override;
 // pass all tracks in the tau cone to all track classifier sub tools
  virtual StatusCode executeTrackClassifier(xAOD::TauJet& pTau, xAOD::TauTrackContainer& tauTrackContainer) const override;
 
 private:
  ToolHandleArray<TrackRNN> m_vClassifier {this, "Classifiers", {}};
 
  SG::ReadHandleKey<xAOD::VertexContainer> m_vertexContainerKey {this, "Key_vertexInputContainer", "PrimaryVertices", "Vertex container key"};
 
  bool m_classifyLRT;
 
}; // class TauTrackRNNClassifier
  
//______________________________________________________________________________
class TrackRNN
  : public TauRecToolBase
{
  ASG_TOOL_CLASS2( TrackRNN,
                   TauRecToolBase,
           ITauToolBase)
  
  public:
  
  TrackRNN(const std::string& name);
  ~TrackRNN();
 
  // configure the MVA object and build a general map to store variables
  // for possible MVA inputs. Only Variables defined in the root weights file
  // are passed to the MVA object
  virtual StatusCode initialize() override;
  
  // executes MVA object to get the RNN scores and set classification flags
  StatusCode classifyTracks(std::vector<xAOD::TauTrack*>& vTracks,
                xAOD::TauJet& xTau,
                const xAOD::VertexContainer* vertexContainer,
                bool skipTracks=false) const;
  
private:
  // set RNN input variables in the corresponding map entries
  StatusCode calculateVars(const std::vector<xAOD::TauTrack*>& vTracks,
               const xAOD::TauJet& xTau,
               const xAOD::VertexContainer* vertexContainer,
               VectorMap& valueMap) const;
 
  // configurable variables
  std::string m_inputWeightsPath; 
  unsigned int m_nMaxNtracks;
 
  std::unique_ptr<lwtDev::LightweightGraph> m_RNNClassifier; 
 
}; // class TrackRNN
 
} // namespace tauRecTools
 
#endif // TAURECTOOLS_TAUTRACKRNNCLASSIFIER_H