WriteTrackingGeometry.cxx

Go to the documentation of this file.

/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
#include "WriteTrackingGeometry.h"
 
// ATHENA
#include "ActsInterop/Logger.h"
 
// PACKAGE
 
#include "ActsPlugins/Json/TrackingGeometryJsonConverter.hpp"
 
// STL
#include <fstream>
#include <iostream>
 
namespace ActsTrk{
 
StatusCode WriteTrackingGeometry::initialize() {
  ATH_MSG_INFO("initializing");
 
  ATH_CHECK(m_trackingGeometryTool.retrieve());
  // ATH_CHECK(m_materialJsonWriterTool.retrieve() );
 
 
  return StatusCode::SUCCESS;
}
 
StatusCode WriteTrackingGeometry::execute(const EventContext& ctx)  {
 
  if (m_dumped) {
    return StatusCode::SUCCESS;
  }
  std::ofstream outFile{m_outFile};
  if (!outFile.good()) {
    ATH_MSG_FATAL("Failed to open "<<m_outFile);
    return StatusCode::FAILURE;
  }
 
 
  m_dumped = true;
  
  const Acts::GeometryContext tgContext = m_trackingGeometryTool->getGeometryContext(ctx).context();
 
  using Config_t  = Acts::TrackingGeometryJsonConverter::Config;
  
  Config_t cfg = Config_t::defaultConfig();
 
  Acts::TrackingGeometryJsonConverter converter{cfg,  makeActsAthenaLogger(this, name())};
 
 
  nlohmann::json trackGeo = converter.toJson(tgContext, *m_trackingGeometryTool->trackingGeometry());
 
 
  outFile<<trackGeo.dump(4);
 
  ATH_MSG_INFO("Dump tracking geometry JSON: "<<m_outFile);
  
  return StatusCode::SUCCESS;
}
 
 
}