DetermineChunking.h

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2012 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/Algorithm.h"
#include "MantidAPI/IEventWorkspace_fwd.h"
#include "MantidDataHandling/DllConfig.h"
#include <string>
#include <vector>
 
namespace Mantid {
namespace DataHandling {
 
using PixelType = int;
using DasTofType = int;
 
#pragma pack(push, 4) // Make sure the structure is 8 bytes.
struct DasEvent {
  DasTofType tof;
  PixelType pid;
};
#pragma pack(pop)
 
enum FileType {
  PRENEXUS_FILE,    
  EVENT_NEXUS_FILE, 
  HISTO_NEXUS_FILE, 
  RAW_FILE          
};
 
class MANTID_DATAHANDLING_DLL DetermineChunking : public API::Algorithm {
public:
  const std::string name() const override;
  const std::string summary() const override {
    return "Workflow algorithm to determine chunking strategy for event nexus, "
           "runinfo.xml, raw, or histo nexus files.";
  }
 
  int version() const override;
  const std::string category() const override;
 
private:
  void init() override;
  void exec() override;
  std::string setTopEntryName(const std::string &filename);
  FileType getFileType(const std::string &filename);
  bool filenameHasExtension(const std::string &filename, const std::vector<std::string> &fileExtensions);
};
 
} // namespace DataHandling
} // namespace Mantid