G4Hdf5FileManager.hh

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// The manager for Hdf5 file output operations.
 
// Author: Ivana Hrivnacova, 20/07/2017 (ivana@ipno.in2p3.fr)
 
#ifndef G4Hdf5FileManager_h
#define G4Hdf5FileManager_h 1
 
#include "G4VTFileManager.hh"
#include "G4AnalysisUtilities.hh"
#include "globals.hh"
 
#include "tools/hdf5/ntuple" // for hid_t
 
#include <memory>
#include <tuple>
#include <string_view>
 
using G4Hdf5File = std::tuple<hid_t, hid_t, hid_t>;
using Hdf5NtupleDescription = G4TNtupleDescription<tools::hdf5::ntuple, G4Hdf5File>;
 
class G4Hdf5FileManager : public G4VTFileManager<G4Hdf5File>
{
  public:
    explicit G4Hdf5FileManager(const G4AnalysisManagerState& state);
    G4Hdf5FileManager() = delete;
    ~G4Hdf5FileManager() = default;
 
    using G4BaseFileManager::GetNtupleFileName;
    using G4VTFileManager<G4Hdf5File>::WriteFile;
    using G4VTFileManager<G4Hdf5File>::CloseFile;
 
    // Methods to manipulate output files
    virtual G4bool OpenFile(const G4String& fileName) final;
 
    virtual G4String GetFileType() const final { return "hdf5"; }
 
    // Specific methods for files per objects
    G4bool CreateNtupleFile(Hdf5NtupleDescription* ntupleDescription);
    G4bool CloseNtupleFile(Hdf5NtupleDescription* ntupleDescription);
 
    // Set methods
    void  SetBasketSize(unsigned int basketSize);
 
    // Get methods
    hid_t GetHistoDirectory() const;
    hid_t GetNtupleDirectory() const;
    unsigned int GetBasketSize() const;
 
  protected:
    // // Methods derived from base class
    virtual std::shared_ptr<G4Hdf5File> CreateFileImpl(const G4String& fileName) final;
    virtual G4bool WriteFileImpl(std::shared_ptr<G4Hdf5File> file) final;
    virtual G4bool CloseFileImpl(std::shared_ptr<G4Hdf5File> file) final;
 
  private:
    hid_t CreateDirectory(hid_t& file, const G4String& directoryName,
             const G4String& objectType);
    G4String GetNtupleFileName(Hdf5NtupleDescription* ntupleDescription);
 
    // Static data members
    static constexpr std::string_view fkClass { "G4Hdf5FileManager" };
    inline static const G4String fgkDefaultDirectoryName { "default" };
 
    // data members
    unsigned int fBasketSize { G4Analysis::kDefaultBasketSize };
};
 
// inline functions
 
//_____________________________________________________________________________
inline void G4Hdf5FileManager::SetBasketSize(unsigned int basketSize)
{ fBasketSize = basketSize; }
 
//_____________________________________________________________________________
inline unsigned int G4Hdf5FileManager::GetBasketSize() const
{ return fBasketSize; }
 
#endif