RootPropagationStepsWriter.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 2018-2022 CERN for the benefit of the Acts project
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

#pragma once

#include "Acts/Propagator/detail/SteppingLogger.hpp"
#include "Acts/Utilities/Logger.hpp"
#include "ActsExamples/Framework/ProcessCode.hpp"
#include "ActsExamples/Framework/WriterT.hpp"

#include <cstddef>
#include <mutex>
#include <string>
#include <vector>

class TFile;
class TTree;

namespace ActsExamples {
struct AlgorithmContext;

using PropagationSteps = std::vector<Acts::detail::Step>;

class RootPropagationStepsWriter
    : public WriterT<std::vector<PropagationSteps>> {
 public:
  struct Config {
    std::string collection =
        "propagation_steps";            
    std::string filePath = "";          
    std::string fileMode = "RECREATE";  
    std::string treeName = "propagation_steps";  
    TFile* rootFile = nullptr;                   
  };

  RootPropagationStepsWriter(const Config& cfg,
                             Acts::Logging::Level level = Acts::Logging::INFO);

  ~RootPropagationStepsWriter() override;

  ProcessCode finalize() override;

  const Config& config() const { return m_cfg; }

 protected:
  ProcessCode writeT(
      const AlgorithmContext& context,
      const std::vector<PropagationSteps>& stepCollection) override;

 private:
  Config m_cfg;                    
  std::mutex m_writeMutex;         
  TFile* m_outputFile = nullptr;   
  TTree* m_outputTree = nullptr;   
  int m_eventNr = 0;               
  std::vector<int> m_volumeID;     
  std::vector<int> m_boundaryID;   
  std::vector<int> m_layerID;      
  std::vector<int> m_approachID;   
  std::vector<int> m_sensitiveID;  
  std::vector<int> m_material;     
  std::vector<float> m_x;          
  std::vector<float> m_y;          
  std::vector<float> m_z;          
  std::vector<float> m_dx;         
  std::vector<float> m_dy;         
  std::vector<float> m_dz;         
  std::vector<int> m_step_type;    
  std::vector<float> m_step_acc;   
  std::vector<float> m_step_act;   
  std::vector<float> m_step_abt;   
  std::vector<float> m_step_usr;   
  std::vector<size_t>
      m_nStepTrials;  

};

}  // namespace ActsExamples