Class describing a generic file including meta information.

Definition at line 39 of file TFileInfo.h.

Public Types
enum	EStatusBits { kStaged = BIT(15) , kCorrupted = BIT(16) , kSortWithIndex = BIT(17) }

Public Types inherited from TObject
enum	{ kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff }

enum	{ kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) }

enum	EDeprecatedStatusBits { kObjInCanvas = BIT(3) }

enum	EStatusBits { kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) , kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13) }

Public Member Functions
	TFileInfo (const char url=0, Long64_t size=-1, const char uuid=0, const char md5=0, TObject meta=0)
	Constructor.

	TFileInfo (const TFileInfo &)
	Copy constructor.

virtual	~TFileInfo ()
	Destructor.

Bool_t	AddMetaData (TObject *meta)
	Add's a meta data object to the file info object.

Bool_t	AddUrl (const char *url, Bool_t infront=kFALSE)
	Add a new URL.

Int_t	Compare (const TObject *obj) const
	Compare TFileInfo object by their first urls.

TUrl *	FindByUrl (const char *url, Bool_t withDeflt=kFALSE)
	Find an element from a URL. Returns 0 if not found.

TUrl *	GetCurrentUrl () const
	Return the current url.

TUrl *	GetFirstUrl () const

Int_t	GetIndex () const

TMD5 *	GetMD5 () const

TFileInfoMeta *	GetMetaData (const char *meta=0) const
	Get meta data object with specified name.

TList *	GetMetaDataList () const

Int_t	GetNUrls () const

Long64_t	GetSize () const

TUrl *	GetUrlAt (Int_t i) const

TUUID *	GetUUID () const

Bool_t	IsSortable () const

TUrl *	NextUrl ()
	Iterator function, start iteration by calling ResetUrl().

void	Print (Option_t *options="") const
	Print information about this object.

Bool_t	RemoveMetaData (const char *meta=0)
	Remove the metadata object.

Bool_t	RemoveUrl (const char *url)
	Remove an URL. Returns kTRUE if successful, kFALSE otherwise.

Bool_t	RemoveUrlAt (Int_t i)
	Remove URL at given position. Returns kTRUE on success, kFALSE on error.

void	ResetUrl ()

Bool_t	SetCurrentUrl (const char *url)
	Set 'url' as current URL, if in the list Return kFALSE if not in the list.

Bool_t	SetCurrentUrl (TUrl *url)
	Set 'url' as current URL, if in the list Return kFALSE if not in the list.

void	SetIndex (Int_t idx)

void	SetSize (Long64_t size)

void	SetUUID (const char *uuid)
	Set the UUID to the value associated to the string 'uuid'.

Public Member Functions inherited from TNamed
	TNamed ()

	TNamed (const char name, const char title)

	TNamed (const TNamed &named)
	TNamed copy ctor.

	TNamed (const TString &name, const TString &title)

virtual	~TNamed ()
	TNamed destructor.

virtual void	Clear (Option_t *option="")
	Set name and title to empty strings ("").

virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility.

virtual void	Copy (TObject &named) const
	Copy this to obj.

virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer.

virtual const char *	GetName () const
	Returns name of object.

virtual const char *	GetTitle () const
	Returns title of object.

virtual ULong_t	Hash () const
	Return hash value for this object.

virtual void	ls (Option_t *option="") const
	List TNamed name and title.

TNamed &	operator= (const TNamed &rhs)
	TNamed assignment operator.

virtual void	SetName (const char *name)
	Set the name of the TNamed.

virtual void	SetNameTitle (const char name, const char title)
	Set all the TNamed parameters (name and title).

virtual void	SetTitle (const char *title="")
	Set the title of the TNamed.

virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject.

Public Member Functions inherited from TObject
	TObject ()
	TObject constructor.

	TObject (const TObject &object)
	TObject copy ctor.

virtual	~TObject ()
	TObject destructor.

void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract.

virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad.

virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action.

ULong_t	CheckedHash ()
	Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.

virtual const char *	ClassName () const
	Returns name of class to which the object belongs.

virtual void	Delete (Option_t *option="")
	Delete this object.

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object.

virtual void	Draw (Option_t *option="")
	Default Draw method for all objects.

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad for instance with: `gROOT->SetSelectedPad(gPad)`.

virtual void	Dump () const
	Dump contents of object on stdout.

virtual void	Error (const char method, const char msgfmt,...) const
	Issue error message.

virtual void	Execute (const char method, const char params, Int_t *error=0)
	Execute method on this object with the given parameter string, e.g.

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray.

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py).

virtual void	Fatal (const char method, const char msgfmt,...) const
	Issue fatal error message.

virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes.

virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes.

virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object.

virtual const char *	GetIconName () const
	Returns mime type name of object.

virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py).

virtual Option_t *	GetOption () const

virtual UInt_t	GetUniqueID () const
	Return the unique object id.

virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out.

Bool_t	HasInconsistentHash () const
	Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.

virtual void	Info (const char method, const char msgfmt,...) const
	Issue info message.

virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname".

virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl.

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas.

void	InvertBit (UInt_t f)

Bool_t	IsDestructed () const
	IsDestructed.

virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory).

virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).

R__ALWAYS_INLINE Bool_t	IsOnHeap () const

R__ALWAYS_INLINE Bool_t	IsZombie () const

void	MayNotUse (const char *method) const
	Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).

virtual Bool_t	Notify ()
	This method must be overridden to handle object notification.

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete.

void	operator delete (void *ptr)
	Operator delete.

void	operator delete[] (void *ptr)
	Operator delete [].

void *	operator new (size_t sz)

void *	operator new (size_t sz, void *vp)

void *	operator new[] (size_t sz)

void *	operator new[] (size_t sz, void *vp)

TObject &	operator= (const TObject &rhs)
	TObject assignment operator.

virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself.

virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list.

virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory.

virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list.

void	ResetBit (UInt_t f)

virtual void	SaveAs (const char filename="", Option_t option="") const
	Save this object in the file specified by filename.

virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out".

void	SetBit (UInt_t f)

void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f.

virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object.

virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id.

virtual void	SysError (const char method, const char msgfmt,...) const
	Issue system error message.

R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.

virtual void	Warning (const char method, const char msgfmt,...) const
	Issue warning message.

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory.

Private Member Functions
TFileInfo &	operator= (const TFileInfo &)=delete

void	ParseInput (const char *in)
	Parse the input line to extract init information from 'in'; the input string is tokenized on ' '; the tokens can be prefixed by the following keys:

Private Attributes
TUrl *	fCurrentUrl

Int_t	fIndex

TMD5 *	fMD5

TList *	fMetaDataList

Long64_t	fSize

TList *	fUrlList
	current URL to access the file, points to URL

TUUID *	fUUID

Additional Inherited Members
Static Public Member Functions inherited from TObject
static Longptr_t	GetDtorOnly ()
	Return destructor only flag.

static Bool_t	GetObjectStat ()
	Get status of object stat flag.

static void	SetDtorOnly (void *obj)
	Set destructor only flag.

static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable.

Protected Types inherited from TObject
enum	{ kOnlyPrepStep = BIT(3) }

Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected).

void	MakeZombie ()

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

#include <TFileInfo.h>

Inheritance diagram for TFileInfo:

[legend]

Member Enumeration Documentation

◆ EStatusBits

enum TFileInfo::EStatusBits

Enumerator
kStaged
kCorrupted
kSortWithIndex

Definition at line 57 of file TFileInfo.h.

Constructor & Destructor Documentation

◆ TFileInfo() [1/2]

TFileInfo::TFileInfo	(	const char *	url = `0`,
		Long64_t	size = `-1`,
		const char *	uuid = `0`,
		const char *	md5 = `0`,
		TObject *	meta = `0`
	)

Constructor.

Definition at line 32 of file TFileInfo.cxx.

◆ TFileInfo() [2/2]

TFileInfo::TFileInfo ( const TFileInfo & fi )

Copy constructor.

Definition at line 74 of file TFileInfo.cxx.

◆ ~TFileInfo()

TFileInfo::~TFileInfo ( )

virtual

Destructor.

Definition at line 120 of file TFileInfo.cxx.

Member Function Documentation

◆ AddMetaData()

Bool_t TFileInfo::AddMetaData ( TObject * meta )

Add's a meta data object to the file info object.

The object will be adopted by the TFileInfo and should not be deleted by the user. Typically objects of class TFileInfoMeta or derivatives should be added, but any class is accepted. Returns kTRUE if successful, kFALSE otherwise.

Definition at line 385 of file TFileInfo.cxx.

◆ AddUrl()

Bool_t TFileInfo::AddUrl	(	const char *	url,
		Bool_t	infront = `kFALSE`
	)

Add a new URL.

If 'infront' is TRUE the new url is pushed at the beginning of the list; otherwise is pushed back. Returns kTRUE if successful, kFALSE otherwise.

Definition at line 296 of file TFileInfo.cxx.

◆ Compare()

Int_t TFileInfo::Compare ( const TObject * obj ) const

virtual

Compare TFileInfo object by their first urls.

Reimplemented from TNamed.

Definition at line 444 of file TFileInfo.cxx.

◆ FindByUrl()

TUrl * TFileInfo::FindByUrl	(	const char *	url,
		Bool_t	withDeflt = `kFALSE`
	)

Find an element from a URL. Returns 0 if not found.

Definition at line 277 of file TFileInfo.cxx.

◆ GetCurrentUrl()

TUrl * TFileInfo::GetCurrentUrl ( ) const

Return the current url.

Definition at line 249 of file TFileInfo.cxx.

◆ GetFirstUrl()

TUrl * TFileInfo::GetFirstUrl ( ) const

inline

Definition at line 72 of file TFileInfo.h.

◆ GetIndex()

Int_t TFileInfo::GetIndex ( ) const

inline

Definition at line 99 of file TFileInfo.h.

◆ GetMD5()

TMD5 * TFileInfo::GetMD5 ( ) const

inline

Definition at line 82 of file TFileInfo.h.

◆ GetMetaData()

TFileInfoMeta * TFileInfo::GetMetaData ( const char * meta = 0 ) const

Get meta data object with specified name.

If meta is 0 get first meta data object. Returns 0 in case no suitable meta data object is found.

Definition at line 425 of file TFileInfo.cxx.

◆ GetMetaDataList()

TList * TFileInfo::GetMetaDataList ( ) const

inline

Definition at line 83 of file TFileInfo.h.

◆ GetNUrls()

Int_t TFileInfo::GetNUrls ( ) const

inline

Definition at line 75 of file TFileInfo.h.

◆ GetSize()

Long64_t TFileInfo::GetSize ( ) const

inline

Definition at line 80 of file TFileInfo.h.

◆ GetUrlAt()

TUrl * TFileInfo::GetUrlAt ( Int_t i ) const

inline

Definition at line 73 of file TFileInfo.h.

◆ GetUUID()

TUUID * TFileInfo::GetUUID ( ) const

inline

Definition at line 81 of file TFileInfo.h.

◆ IsSortable()

Bool_t TFileInfo::IsSortable ( ) const

inlinevirtual

Reimplemented from TNamed.

Definition at line 96 of file TFileInfo.h.

◆ NextUrl()

TUrl * TFileInfo::NextUrl ( )

Iterator function, start iteration by calling ResetUrl().

The first call to NextUrl() will return the 1st element, the seconde the 2nd element etc. Returns 0 in case no more urls.

Definition at line 261 of file TFileInfo.cxx.

◆ operator=()

TFileInfo & TFileInfo::operator= ( const TFileInfo & )

privatedelete

◆ ParseInput()

void TFileInfo::ParseInput ( const char * in )

private

Parse the input line to extract init information from 'in'; the input string is tokenized on ' '; the tokens can be prefixed by the following keys:

url:<url1>,<url2>,... URLs for the file; stored in the order given
sz:<size> size of the file in bytes
md5:<md5_ascii> MD5 sum of the file in ASCII form
uuid:<uuid> UUID of the file
tree:<name>,<entries>,<first>,<last> meta-information about a tree in the file; the should be in the form "<subdir>/tree-name";'entries' is the number of entries in the tree; 'first' and 'last' define the entry range.
obj:<name>,<class>,<entries> meta-information about a generic object in the file; the should be in the form "<subdir>/obj-name"; 'class' is the object class; 'entries' is the number of occurrences for this object.
idx:<index> Index of this file if sorting with index

Multiple occurrences of 'tree:' or 'obj:' can be specified. The initializations done via the input string are super-seeded by the ones by other parameters in the constructor, if any. If no key is given, the token is interpreted as URL(s).

Definition at line 157 of file TFileInfo.cxx.

◆ Print()

void TFileInfo::Print ( Option_t * option = "" ) const

virtual

Print information about this object.

If option contains 'L' a long listing will be printed (on multiple lines). Otherwise one line is printed with the following information: current url, default tree name|class|entries, md5; the default tree name is passed via the option ("T:<default_tree>") by the owning TFileCollection.

Reimplemented from TNamed.

Definition at line 478 of file TFileInfo.cxx.

◆ RemoveMetaData()

Bool_t TFileInfo::RemoveMetaData ( const char * meta = 0 )

Remove the metadata object.

If meta is 0 remove all meta data objects. Returns kTRUE if successful, kFALSE otherwise.

Definition at line 402 of file TFileInfo.cxx.

◆ RemoveUrl()

Bool_t TFileInfo::RemoveUrl ( const char * url )

Remove an URL. Returns kTRUE if successful, kFALSE otherwise.

Definition at line 321 of file TFileInfo.cxx.

◆ RemoveUrlAt()

Bool_t TFileInfo::RemoveUrlAt ( Int_t i )

Remove URL at given position. Returns kTRUE on success, kFALSE on error.

Definition at line 337 of file TFileInfo.cxx.

◆ ResetUrl()

void TFileInfo::ResetUrl ( )

inline

Definition at line 69 of file TFileInfo.h.

◆ SetCurrentUrl() [1/2]

Bool_t TFileInfo::SetCurrentUrl ( const char * url )

Set 'url' as current URL, if in the list Return kFALSE if not in the list.

Definition at line 355 of file TFileInfo.cxx.

◆ SetCurrentUrl() [2/2]

Bool_t TFileInfo::SetCurrentUrl ( TUrl * url )

Set 'url' as current URL, if in the list Return kFALSE if not in the list.

Definition at line 369 of file TFileInfo.cxx.

◆ SetIndex()

void TFileInfo::SetIndex ( Int_t idx )

inline

Definition at line 100 of file TFileInfo.h.

◆ SetSize()

void TFileInfo::SetSize ( Long64_t size )

inline

Definition at line 86 of file TFileInfo.h.

◆ SetUUID()

void TFileInfo::SetUUID ( const char * uuid )

Set the UUID to the value associated to the string 'uuid'.

This is useful to set the UUID to the one of the ROOT file during verification.

NB: we do not change the name in here, because this would screw up lists of these objects hashed on the name. Those lists need to be rebuild. TFileCollection does that in RemoveDuplicates.

Definition at line 238 of file TFileInfo.cxx.

Member Data Documentation

◆ fCurrentUrl

TUrl* TFileInfo::fCurrentUrl

private

Definition at line 42 of file TFileInfo.h.

◆ fIndex

Int_t TFileInfo::fIndex

private

Definition at line 50 of file TFileInfo.h.

◆ fMD5

TMD5* TFileInfo::fMD5

private

Definition at line 47 of file TFileInfo.h.

◆ fMetaDataList

TList* TFileInfo::fMetaDataList

private

Definition at line 48 of file TFileInfo.h.

◆ fSize

Long64_t TFileInfo::fSize

private

Definition at line 45 of file TFileInfo.h.

◆ fUrlList

TList* TFileInfo::fUrlList

private

current URL to access the file, points to URL

Definition at line 44 of file TFileInfo.h.

◆ fUUID

TUUID* TFileInfo::fUUID

private

Definition at line 46 of file TFileInfo.h.

core/base/inc/TFileInfo.h

core/base/src/TFileInfo.cxx

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Member Enumeration Documentation

◆ EStatusBits

Constructor & Destructor Documentation

◆ TFileInfo() [1/2]

◆ TFileInfo() [2/2]

◆ ~TFileInfo()

Member Function Documentation

◆ AddMetaData()

◆ AddUrl()

◆ Compare()

◆ FindByUrl()

◆ GetCurrentUrl()

◆ GetFirstUrl()

◆ GetIndex()

◆ GetMD5()

◆ GetMetaData()

◆ GetMetaDataList()

◆ GetNUrls()

◆ GetSize()

◆ GetUrlAt()

◆ GetUUID()

◆ IsSortable()

◆ NextUrl()

◆ operator=()

◆ ParseInput()

◆ Print()

◆ RemoveMetaData()

◆ RemoveUrl()

◆ RemoveUrlAt()

◆ ResetUrl()

◆ SetCurrentUrl() [1/2]

◆ SetCurrentUrl() [2/2]

◆ SetIndex()

◆ SetSize()

◆ SetUUID()

Member Data Documentation

◆ fCurrentUrl

◆ fIndex

◆ fMD5

◆ fMetaDataList

◆ fSize

◆ fUrlList

◆ fUUID