G4GenericFileManager.hh

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// The manager for Root output file operations.
 
// Author: Ivana Hrivnacova, 18/06/2013  ([email protected])
 
#ifndef G4GenericFileManager_h
#define G4GenericFileManager_h 1
 
#include "G4VFileManager.hh"
#include "G4AnalysisUtilities.hh"
#include "globals.hh"
 
#include <vector>
#include <memory>
#include <string_view>
 
class G4HnInformation;
class G4VNtupleFileManager;
 
class G4CsvFileManager;
#ifdef TOOLS_USE_HDF5
class G4Hdf5FileManager;
#endif
class G4RootFileManager;
class G4XmlFileManager;
 
class G4GenericFileManager : public G4VFileManager
{
  public:
    explicit G4GenericFileManager(const G4AnalysisManagerState& state);
    ~G4GenericFileManager() override = default;
 
    // Method to manipulate a default file
    G4bool OpenFile(const G4String& fileName) final;
 
    // Methods applied to all registered files
    virtual G4bool OpenFiles() final;
    G4bool WriteFiles() final;
    G4bool CloseFiles() final;
    G4bool DeleteEmptyFiles() final;
 
    // Clear all data
    void Clear() final;
 
    // Methods applied to file per name
    G4bool CreateFile(const G4String& fileName) final;
    G4bool WriteFile(const G4String& fileName) final;
    G4bool CloseFile(const G4String& fileName) final;
    G4bool SetIsEmpty(const G4String& fileName, G4bool isEmpty) final;
 
    G4bool SetHistoDirectoryName(const G4String& dirName) override;
    G4bool SetNtupleDirectoryName(const G4String& dirName) override;
 
    G4String GetFileType() const final { return ""; }
 
    // Set default output type (backward compatibility)
    // this type will be used for file names without extension
    void SetDefaultFileType(const G4String& value);
    G4String GetDefaultFileType() const;
 
    // Get file manager for a specific output type
    std::shared_ptr<G4VFileManager> GetFileManager(const G4String& fileName);
 
    template <typename HT>
    G4bool WriteTExtra(const G4String& fileName, HT* ht, const G4String& htName);
 
    // Methods
    std::shared_ptr<G4VNtupleFileManager> CreateNtupleFileManager(G4AnalysisOutput output);
 
  private:
    // Methods
    void CreateFileManager(G4AnalysisOutput output);
    std::shared_ptr<G4VFileManager> GetFileManager(G4AnalysisOutput output) const;
 
    // Static data members
    static constexpr std::string_view fkClass { "G4GenericFileManager" };
    // inline static const G4String fgkDefaultFileType { "root" };
    // inline static const G4String fgkDefaultFileType { "undefined" };
 
    // Data members
    G4String fDefaultFileType;
    std::shared_ptr<G4VFileManager> fDefaultFileManager { nullptr };
    std::vector<std::shared_ptr<G4VFileManager>> fFileManagers {
       // Csv,  Hdf5,    Root,    Xml
       nullptr, nullptr, nullptr, nullptr
     };
    std::shared_ptr<G4CsvFileManager>  fCsvFileManager { nullptr };
#ifdef TOOLS_USE_HDF5
    std::shared_ptr<G4Hdf5FileManager> fHdf5FileManager { nullptr };
#endif
    std::shared_ptr<G4RootFileManager> fRootFileManager { nullptr };
    std::shared_ptr<G4XmlFileManager>  fXmlFileManager { nullptr };
    G4bool fHdf5Warn { true };
};
 
#include "G4GenericFileManager.icc"
 
#endif