EDM4hepMultiTrajectoryWriter.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 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 "ActsExamples/EventData/Trajectories.hpp"
#include "ActsExamples/Framework/DataHandle.hpp"
#include "ActsExamples/Framework/WriterT.hpp"
#include "ActsFatras/EventData/Hit.hpp"
#include "ActsFatras/EventData/Particle.hpp"

#include <string>

#include <podio/ROOTFrameWriter.h>

namespace ActsExamples {

class EDM4hepMultiTrajectoryWriter : public WriterT<TrajectoriesContainer> {
 public:
  struct Config {
    std::string inputTrajectories;
    std::string inputMeasurementParticlesMap;
    std::string outputPath;
    double Bz{};
    Acts::ParticleHypothesis particleHypothesis =
        Acts::ParticleHypothesis::pion();
  };

  EDM4hepMultiTrajectoryWriter(
      const Config& config, Acts::Logging::Level level = Acts::Logging::INFO);

  ProcessCode finalize() final;

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

 protected:
  ProcessCode writeT(const AlgorithmContext& context,
                     const TrajectoriesContainer& trajectories) final;

 private:
  Config m_cfg;

  podio::ROOTFrameWriter m_writer;

  ReadDataHandle<IndexMultimap<ActsFatras::Barcode>>
      m_inputMeasurementParticlesMap{this, "InputMeasurementParticlesMaps"};
};

}  // namespace ActsExamples