LoadBankFromDiskTask.h

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2017 ISIS Rutherford Appleton Laboratory UKRI,
//   NScD Oak Ridge National Laboratory, European Spallation Source,
//   Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
#pragma once
 
#include "MantidAPI/Progress.h"
#include "MantidDataHandling/DllConfig.h"
#include "MantidKernel/Task.h"
#include "MantidKernel/ThreadScheduler.h"
#include "MantidNexus/NexusFile_fwd.h"
 
#include <cstdint>
 
namespace Mantid::Nexus {
class File;
}
 
namespace Mantid {
namespace DataHandling {
class BankPulseTimes;
class DefaultEventLoader;
 
class MANTID_DATAHANDLING_DLL LoadBankFromDiskTask : public Kernel::Task {
 
public:
  LoadBankFromDiskTask(DefaultEventLoader &loader, std::string entry_name, std::string entry_type,
                       const std::size_t numEvents, const bool oldNeXusFileNames, API::Progress *prog,
                       std::shared_ptr<std::mutex> ioMutex, Kernel::ThreadScheduler &scheduler,
                       std::vector<int> framePeriodNumbers);
 
  void run() override;
 
private:
  void loadPulseTimes(Nexus::File &file);
  std::unique_ptr<std::vector<uint64_t>> loadEventIndex(Nexus::File &file);
  void prepareEventId(Nexus::File &file, uint64_t &start_event, uint64_t &stop_event,
                      const uint64_t &start_event_index);
  std::unique_ptr<std::vector<uint32_t>> loadEventId(Nexus::File &file);
  std::unique_ptr<std::vector<float>> loadTof(Nexus::File &file);
  std::unique_ptr<std::vector<float>> loadEventWeights(Nexus::File &file);
  uint64_t recalculateDataSize(const int64_t size);
 
  DefaultEventLoader &m_loader;
  std::string entry_name;
  std::string entry_type;
  API::Progress *prog;
  Kernel::ThreadScheduler &scheduler;
  std::shared_ptr<BankPulseTimes> thisBankPulseTimes;
  bool m_loadError;
  // Old names in the file are different
  std::string m_detIdFieldName;
  std::string m_timeOfFlightFieldName;
  Nexus::DimVector m_loadStart;
  Nexus::DimVector m_loadSize;
  uint32_t m_min_id;
  uint32_t m_max_id;
  bool m_have_weight;
  const std::vector<int> m_framePeriodNumbers;
}; // END-DEF-CLASS LoadBankFromDiskTask
 
} // namespace DataHandling
} // namespace Mantid