Event source which reads entries from a dataset in a hdf5 formatted file names of elements in hdf5 data must match the members of the input event class. More...

#include <TGo4HDF5Source.h>

Inheritance diagram for TGo4HDF5Source:

Public Member Functions
	TGo4HDF5Source ()

	TGo4HDF5Source (const char *name)

	TGo4HDF5Source (TGo4HDF5SourceParameter *par)

virtual	~TGo4HDF5Source ()

Bool_t	BuildEvent (TGo4EventElement *dest) override
	Fill the destination event dest from the tree.

Public Member Functions inherited from TGo4EventSource
	TGo4EventSource ()

	TGo4EventSource (const char *name)

virtual	~TGo4EventSource ()

virtual Bool_t	CheckEventClass (TClass *cl)
	Check that event class is supported by event source.

void	Clear (Option_t *opt="") override

virtual const char *	GetActiveName () const
	Access to the name of the currently active source.

Int_t	GetCreateStatus () const
	Status value of server/file open.

const char *	GetErrMess () const
	Status/ error message of the last event.

Int_t	GetEventStatus () const
	Status of the last event.

Public Member Functions inherited from TGo4HDF5Adapter
	TGo4HDF5Adapter ()

virtual	~TGo4HDF5Adapter ()

Static Public Member Functions
static TList *	ProducesFilesList (const char *mask)

Static Public Member Functions inherited from TGo4HDF5Adapter
static void	AddSubHandle (TGo4HDF5DataHandle handle, const char name, const char type, size_t size, size_t memberoffset, const char membername, const char classname, TClass valueclass)
	Add subhandle to handle that represents a contained collection.

static void	FillTypeInfo (TGo4HDF5DataHandle handle, const char membername, const char memtypename, size_t memberoffset=0, Int_t arraydim=0, TDataMember member=nullptr)
	evaluate h5 type information for basic types of memtypename

static void	FillTypeInfo (TGo4HDF5DataHandle handle, TClass rootclass, const char *basename=nullptr)
	evaluate h5 type information from root class streamer

Protected Member Functions
void	BuildDataSet (TGo4EventElement *event) override
	initialize dataset from event structure

void	DeleteDataSet () override
	delete dataset resource

void	OpenFile (const char *fname) override
	opens the hdf5 file of given name for reading

Protected Member Functions inherited from TGo4EventSource
void	SetCreateStatus (Int_t status)
	Status value of event source init (file/server open).

void	SetErrMess (const char *txt)
	To be used for modification of the message by the event source implementation.

void	SetEventStatus (Int_t status)
	Status of the last event.

void	ThrowEOF (Int_t creastat, Int_t errstat, const char *message,...)
	EOF thrower.

void	ThrowError (Int_t creastat, Int_t errstat, const char *message,...)
	Exception thrower.

Protected Member Functions inherited from TGo4HDF5Adapter
void	BuildDataType (TGo4EventElement event, TGo4HDF5DataHandle parent=nullptr, Int_t index=0)
	Prepare data type from event structure for hdf5.

virtual void	CloseFile ()
	opens the hdf5 file depending on the setup

UInt_t	ConvertFileMode (Go4_H5_File_Flags flags)
	Convert common go4 filemode flags to hdf5 flags:

size_t	ScanEventSize (TGo4EventElement *event)
	evaluate total memory size of event object regarding composite subevents

Private Member Functions
Bool_t	CloseCurrentFile ()
	Close currently open file.

Bool_t	OpenNextFile ()
	Open next file from the files list.

Private Attributes
size_t	fiReadOffset {0}
	begin of real eventdata payload after event object pointer

TString	fxCurrentFileName
	current name of the file

TList *	fxFilesNames {nullptr}
	list of files names

Char_t *	fxReadBuffer {nullptr}
	read buffer for hdf5

Friends
class	TGo4HDF5BasicDataHandle

class	TGo4HDF5DataHandle

Additional Inherited Members
Static Public Attributes inherited from TGo4EventSource
static const Int_t	fgiTIMEOUTDEFAULT =1
	Default timeout in seconds for event input.

Static Public Attributes inherited from TGo4HDF5Adapter
static const char *	fgcFILESUF = ".h5"
	Standard suffix for file name.

Protected Types inherited from TGo4EventSource
enum	{ fguTXTLEN = 256 }
	text length More...

Protected Attributes inherited from TGo4HDF5Adapter
Bool_t	fbDataSetExists {kFALSE}
	True if branch already exists.

hsize_t	fiFillCount {0}
	counter of filled events.

UInt_t	fiFlags {0}
	remember file property flags.

TGo4EventElement *	fxEvent {nullptr}
	Points to event structure to be filled into dataset.

H5::H5File *	fxFile {nullptr}
	the currently open hdf5 file

TGo4HDF5DataHandle *	fxHandle {nullptr}
	handle object to recursively treat the io of nested event components

Detailed Description

Event source which reads entries from a dataset in a hdf5 formatted file names of elements in hdf5 data must match the members of the input event class.