DL2HighLevel.cxx

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
 
#include "FlavorTagDiscriminants/DL2HighLevel.h"
#include "FlavorTagDiscriminants/DL2.h"
#include "FlavorTagInference/FTagDataDependencyNames.h"
 
#include "PathResolver/PathResolver.h"
 
#include "lwtnn/parse_json.hh"
#include "lwtnn/LightweightGraph.hh"
#include "lwtnn/NanReplacer.hh"
 
#define BOOST_BIND_GLOBAL_PLACEHOLDERS // Needed to silence Boost pragma message
#include <boost/property_tree/json_parser.hpp>
#include <boost/property_tree/exceptions.hpp>
 
#include <fstream>
#include <utility>
 
 
namespace FlavorTagDiscriminants {
 
  DL2HighLevel::DL2HighLevel(const std::string& nn_file_name,
                             FlipTagConfig flip_config,
                             std::map<std::string,std::string> remap_scalar,
                             float default_output_value):
    m_dl2(nullptr)
  {
    // get the graph
    std::string nn_path = PathResolverFindCalibFile(nn_file_name);
    if (nn_path.size() == 0) {
      throw std::runtime_error("no file found at '" + nn_file_name + "'");
    }
    std::ifstream input_stream(nn_path);
    lwt::GraphConfig config = lwt::parse_json_graph(input_stream);
 
    if (config.inputs.size() > 1) {
      throw std::logic_error("DL2 doesn't support multiple inputs");
    }
    auto [input_config, constituents_configs, options] = dataprep::createGetterConfig<lwt::GraphConfig, lwt::OutputNodeConfig>(
      config, flip_config, std::move(remap_scalar));
    options.default_output_value = default_output_value;
 
    m_dl2.reset(
      new DL2(
        config,                 // lwtnn config
        input_config,           // EDM input config
        constituents_configs,   // edm track input config
        options
        ));
  }
 
  DL2HighLevel::~DL2HighLevel() = default;
  DL2HighLevel::DL2HighLevel(DL2HighLevel&&) = default;
  DL2HighLevel::DL2HighLevel(const DL2HighLevel&) = default;
 
  void DL2HighLevel::decorate(const xAOD::IParticle& i_jet) const {
    m_dl2->decorate(i_jet);
  }
  void DL2HighLevel::decorateWithDefaults(const xAOD::IParticle& i_jet) const {
    m_dl2->decorateWithDefaults(i_jet);
  }
 
  FTagDataDependencyNames DL2HighLevel::getDataDependencyNames() const
  {
    return m_dl2->getDataDependencyNames();
  }
}