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RooMsgService Class Reference

The class RooMsgService is a singleton that organizes messages generated in RooFit.

Each message has a message level RooFit::MsgLevel (DEBUG,INFO,PROGRESS,WARNING,ERROR or FATAL), an source object, and a RooFit::MsgTopic. RooMsgService allows to filter and redirect messages into streams according to message level, topic, (base) class of originating object, name of originating object and based on attribute labels attached to individual objects. The current default configuration creates streams for all messages at WARNING level or higher (e.g. ERROR and FATAL) and for all INFO message on topics Generation,Plotting, Integration and Minimization and redirects them to stdout. Users can create additional streams for logging of e.g. DEBUG messages on particular topics or objects and/or redirect streams to C++ streams or files.

The singleton instance is accessible through RooMsgService::instance().

Temporarily change the message level

There is a helper, RooHelpers::LocalChangeMsgLevel, that overrides the default message levels as long as it is alive. To suppress everything below WARNING:

RooHelpers::LocalChangeMessageLevel changeMsgLvl(RooFit::WARNING);
[ statements that normally generate a lot of output ]
#define a(i)
Definition RSha256.hxx:99
static void output()

Temporarily capture a message stream

RooHelpers::HijackMessageStream allows to fully capture a message stream in a std::stringstream. With this, RooFit messages can be evaluated or suppressed.

PyROOT

Some member functions of RooMsgService that take a RooCmdArg as argument also support keyword arguments. So far, this applies to RooMsgService::addStream. For example, the following code is equivalent in PyROOT:

# Directly passing a RooCmdArg:
ROOT.RooMsgService.instance().addStream(ROOT.RooFit.DEBUG, ROOT.RooFit.Topic(ROOT.RooFit.Tracing), ROOT.RooFit.ClassName("RooGaussian"))
# With keyword arguments:
ROOT.RooMsgService.instance().addStream(ROOT.RooFit.DEBUG, Topic = ROOT.RooFit.Tracing, ClassName = "RooGaussian")

Definition at line 110 of file RooMsgService.h.

Classes

struct  StreamConfig
 

Public Member Functions

 ~RooMsgService () override
 
Int_t addStream (RooFit::MsgLevel level, const RooCmdArg &arg1={}, const RooCmdArg &arg2={}, const RooCmdArg &arg3={}, const RooCmdArg &arg4={}, const RooCmdArg &arg5={}, const RooCmdArg &arg6={})
 Add a message logging stream for message with given RooFit::MsgLevel or higher.
 
void clearErrorCount ()
 
Int_tdebugCode ()
 
RooWorkspacedebugWorkspace ()
 
void deleteStream (Int_t id)
 Delete stream with given unique ID code.
 
Int_t errorCount () const
 
StreamConfiggetStream (Int_t id)
 
bool getStreamStatus (Int_t id) const
 Get activation status of stream with given unique ID.
 
RooFit::MsgLevel globalKillBelow () const
 
TClassIsA () const override
 
template<class T >
bool isActive (T self, RooFit::MsgTopic topic, RooFit::MsgLevel level)
 Check if logging is active for given object/topic/RooFit::MsgLevel combination.
 
std::ostream & log (const RooAbsArg *self, RooFit::MsgLevel level, RooFit::MsgTopic facility, bool forceSkipPrefix=false)
 Log error message associated with RooAbsArg object self at given level and topic.
 
std::ostream & log (const TObject *self, RooFit::MsgLevel level, RooFit::MsgTopic facility, bool forceSkipPrefix=false)
 Log error message associated with TObject object self at given level and topic.
 
std::ostream & log (std::nullptr_t, RooFit::MsgLevel level, RooFit::MsgTopic facility, bool forceSkipPrefix=false)
 
Int_t numStreams () const
 
void Print (Option_t *options=nullptr) const override
 Print configuration of message service.
 
void reset ()
 
void restoreState ()
 Restore last saved state of message service.
 
void saveState ()
 Save current state of message service.
 
void setGlobalKillBelow (RooFit::MsgLevel level)
 
void setSilentMode (bool flag)
 
void setStreamStatus (Int_t id, bool active)
 (De)Activate stream with given unique ID
 
void showPid (bool flag)
 
bool silentMode () const
 
void Streamer (TBuffer &) override
 Stream an object of class TObject.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
- 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 Clear (Option_t *="")
 
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility.
 
virtual Int_t Compare (const TObject *obj) const
 Compare abstract method.
 
virtual void Copy (TObject &object) const
 Copy this to obj.
 
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 TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1).
 
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=nullptr)
 Execute method on this object with the given parameter string, e.g.
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=nullptr)
 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 TObjectFindObject (const char *name) const
 Must be redefined in derived classes.
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes.
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object.
 
virtual const char * GetIconName () const
 Returns mime type name of object.
 
virtual const char * GetName () const
 Returns 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_tGetOption () const
 
virtual const char * GetTitle () const
 Returns title of object.
 
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.
 
virtual ULong_t Hash () const
 Return hash value for this object.
 
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
 
virtual Bool_t IsSortable () const
 
R__ALWAYS_INLINE Bool_t IsZombie () const
 
virtual void ls (Option_t *option="") const
 The ls function lists the contents of a class on stdout.
 
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 (the base implementation is no-op).
 
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, void *vp)
 Only called by placement new when throwing an exception.
 
void operator delete[] (void *ptr)
 Operator delete [].
 
void operator delete[] (void *ptr, void *vp)
 Only called by placement new[] when throwing an exception.
 
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)
 
TObjectoperator= (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.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
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=nullptr, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory.
 
virtual Int_t Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory.
 

Static Public Member Functions

static bool anyDebug ()
 Returns true if any debug level stream is active.
 
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
static RooMsgServiceinstance ()
 Return reference to singleton instance.
 
- Static Public Member Functions inherited from TObject
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
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.
 

Public Attributes

std::map< int, std::string > _levelNames
 
std::map< int, std::string > _topicNames
 

Static Public Attributes

static Int_t _debugCount = 0
 

Protected Member Functions

 RooMsgService ()
 Constructor.
 
 RooMsgService (const RooMsgService &)
 
template<class T >
Int_t activeStream (T self, RooFit::MsgTopic topic, RooFit::MsgLevel level)
 Find appropriate logging stream for message from given object with given topic and message level.
 
- 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

Int_t _debugCode
 
std::unique_ptr< RooWorkspace_debugWorkspace
 
std::unique_ptr< std::ofstream > _devnull
 
Int_t _errorCount
 
std::map< std::string, std::unique_ptr< std::ostream > > _files
 
RooFit::MsgLevel _globMinLevel
 
RooFit::MsgLevel _lastMsgLevel
 
bool _showPid
 
bool _silentMode
 
std::vector< StreamConfig_streams
 
std::stack< std::vector< StreamConfig > > _streamsSaved
 

Additional Inherited Members

- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) }
 
enum  EStatusBits {
  kCanDelete = (1ULL << ( 0 )) , kMustCleanup = (1ULL << ( 3 )) , kIsReferenced = (1ULL << ( 4 )) , kHasUUID = (1ULL << ( 5 )) ,
  kCannotPick = (1ULL << ( 6 )) , kNoContextMenu = (1ULL << ( 8 )) , kInvalidObject = (1ULL << ( 13 ))
}
 
- Protected Types inherited from TObject
enum  { kOnlyPrepStep = (1ULL << ( 3 )) }
 

#include <RooMsgService.h>

Inheritance diagram for RooMsgService:
[legend]

Constructor & Destructor Documentation

◆ ~RooMsgService()

RooMsgService::~RooMsgService ( )
overridedefault

◆ RooMsgService() [1/2]

RooMsgService::RooMsgService ( )
protected

Constructor.

Defines names of message levels and mapping of topic codes to topic names Install default message streams.

Definition at line 80 of file RooMsgService.cxx.

◆ RooMsgService() [2/2]

RooMsgService::RooMsgService ( const RooMsgService )
protected

Member Function Documentation

◆ activeStream()

template<class T >
Int_t RooMsgService::activeStream ( self,
RooFit::MsgTopic  topic,
RooFit::MsgLevel  level 
)
inlineprotected

Find appropriate logging stream for message from given object with given topic and message level.

Definition at line 213 of file RooMsgService.h.

◆ addStream()

RooMsgService::addStream ( RooFit::MsgLevel  level,
const RooCmdArg arg1 = {},
const RooCmdArg arg2 = {},
const RooCmdArg arg3 = {},
const RooCmdArg arg4 = {},
const RooCmdArg arg5 = {},
const RooCmdArg arg6 = {} 
)

Add a message logging stream for message with given RooFit::MsgLevel or higher.

Higher means that messages with higher priority/severity are issued.

This method accepts the following arguments to configure the stream:

Output Style options
Prefix(bool flag=true) Prefix all messages in this stream with Topic/Originator information
Filtering options
Topic() Restrict stream to messages on given topic
ObjectName(const char*) Restrict stream to messages from object with given name
ClassName(const char*) Restrict stream to messages from objects with given class name
BaseClassName(const char*)Restrict stream to messages from objects with given base class name
LabelName(const chat*) Restrict stream to messages from objects setAttribute(const char*) tag with given name
Output redirection options
OutputFile(const char*) Send output to file with given name. Multiple streams can write to same file.
OutputStream(ostream&) Send output to given C++ stream. Multiple message streams can write to same c++ stream

The return value is the unique ID of the defined stream.

PyROOT

The RooMsgService::addStream() function is pythonized with the command argument pythonization. The keywords must correspond to the CmdArg of the function.

Definition at line 177 of file RooMsgService.cxx.

◆ anyDebug()

bool RooMsgService::anyDebug ( )
static

Returns true if any debug level stream is active.

Definition at line 138 of file RooMsgService.cxx.

◆ Class()

static TClass * RooMsgService::Class ( )
static
Returns
TClass describing this class

◆ Class_Name()

static const char * RooMsgService::Class_Name ( )
static
Returns
Name of this class

◆ Class_Version()

static constexpr Version_t RooMsgService::Class_Version ( )
inlinestaticconstexpr
Returns
Version of this class

Definition at line 246 of file RooMsgService.h.

◆ clearErrorCount()

void RooMsgService::clearErrorCount ( )
inline

Definition at line 200 of file RooMsgService.h.

◆ debugCode()

Int_t & RooMsgService::debugCode ( )
inline

Definition at line 207 of file RooMsgService.h.

◆ debugWorkspace()

RooWorkspace * RooMsgService::debugWorkspace ( )

Definition at line 147 of file RooMsgService.cxx.

◆ DeclFileName()

static const char * RooMsgService::DeclFileName ( )
inlinestatic
Returns
Name of the file containing the class declaration

Definition at line 246 of file RooMsgService.h.

◆ deleteStream()

void RooMsgService::deleteStream ( Int_t  id)

Delete stream with given unique ID code.

Definition at line 293 of file RooMsgService.cxx.

◆ errorCount()

Int_t RooMsgService::errorCount ( ) const
inline

Definition at line 199 of file RooMsgService.h.

◆ getStream()

StreamConfig & RooMsgService::getStream ( Int_t  id)
inline

Definition at line 161 of file RooMsgService.h.

◆ getStreamStatus()

bool RooMsgService::getStreamStatus ( Int_t  id) const

Get activation status of stream with given unique ID.

Definition at line 331 of file RooMsgService.cxx.

◆ globalKillBelow()

RooFit::MsgLevel RooMsgService::globalKillBelow ( ) const
inline

Definition at line 170 of file RooMsgService.h.

◆ instance()

RooMsgService & RooMsgService::instance ( )
static

Return reference to singleton instance.

Definition at line 345 of file RooMsgService.cxx.

◆ IsA()

TClass * RooMsgService::IsA ( ) const
inlineoverridevirtual
Returns
TClass describing current object

Reimplemented from TObject.

Definition at line 246 of file RooMsgService.h.

◆ isActive()

template<class T >
bool RooMsgService::isActive ( self,
RooFit::MsgTopic  topic,
RooFit::MsgLevel  level 
)
inline

Check if logging is active for given object/topic/RooFit::MsgLevel combination.

Definition at line 186 of file RooMsgService.h.

◆ log() [1/3]

ostream & RooMsgService::log ( const RooAbsArg self,
RooFit::MsgLevel  level,
RooFit::MsgTopic  topic,
bool  skipPrefix = false 
)

Log error message associated with RooAbsArg object self at given level and topic.

If skipPrefix is true the standard RooMsgService prefix is not added.

Definition at line 419 of file RooMsgService.cxx.

◆ log() [2/3]

ostream & RooMsgService::log ( const TObject self,
RooFit::MsgLevel  level,
RooFit::MsgTopic  topic,
bool  skipPrefix = false 
)

Log error message associated with TObject object self at given level and topic.

If skipPrefix is true the standard RooMsgService prefix is not added.

Definition at line 456 of file RooMsgService.cxx.

◆ log() [3/3]

std::ostream & RooMsgService::log ( std::nullptr_t  ,
RooFit::MsgLevel  level,
RooFit::MsgTopic  facility,
bool  forceSkipPrefix = false 
)
inline

Definition at line 180 of file RooMsgService.h.

◆ numStreams()

Int_t RooMsgService::numStreams ( ) const
inline

Definition at line 163 of file RooMsgService.h.

◆ Print()

void RooMsgService::Print ( Option_t options = nullptr) const
overridevirtual

Print configuration of message service.

If "v" option is given also inactive streams are listed

Reimplemented from TObject.

Definition at line 486 of file RooMsgService.cxx.

◆ reset()

void RooMsgService::reset ( )

Definition at line 113 of file RooMsgService.cxx.

◆ restoreState()

void RooMsgService::restoreState ( )

Restore last saved state of message service.

Definition at line 366 of file RooMsgService.cxx.

◆ saveState()

void RooMsgService::saveState ( )

Save current state of message service.

Definition at line 356 of file RooMsgService.cxx.

◆ setGlobalKillBelow()

void RooMsgService::setGlobalKillBelow ( RooFit::MsgLevel  level)
inline

Definition at line 169 of file RooMsgService.h.

◆ setSilentMode()

void RooMsgService::setSilentMode ( bool  flag)
inline

Definition at line 197 of file RooMsgService.h.

◆ setStreamStatus()

void RooMsgService::setStreamStatus ( Int_t  id,
bool  active 
)

(De)Activate stream with given unique ID

Definition at line 311 of file RooMsgService.cxx.

◆ showPid()

void RooMsgService::showPid ( bool  flag)
inline

Definition at line 173 of file RooMsgService.h.

◆ silentMode()

bool RooMsgService::silentMode ( ) const
inline

Definition at line 196 of file RooMsgService.h.

◆ Streamer()

void RooMsgService::Streamer ( TBuffer R__b)
overridevirtual

Stream an object of class TObject.

Reimplemented from TObject.

◆ StreamerNVirtual()

void RooMsgService::StreamerNVirtual ( TBuffer ClassDef_StreamerNVirtual_b)
inline

Definition at line 246 of file RooMsgService.h.

Member Data Documentation

◆ _debugCode

Int_t RooMsgService::_debugCode
protected

Definition at line 244 of file RooMsgService.h.

◆ _debugCount

Int_t RooMsgService::_debugCount = 0
static

Definition at line 191 of file RooMsgService.h.

◆ _debugWorkspace

std::unique_ptr<RooWorkspace> RooMsgService::_debugWorkspace
protected

Definition at line 242 of file RooMsgService.h.

◆ _devnull

std::unique_ptr<std::ofstream> RooMsgService::_devnull
protected

Definition at line 227 of file RooMsgService.h.

◆ _errorCount

Int_t RooMsgService::_errorCount
protected

Definition at line 236 of file RooMsgService.h.

◆ _files

std::map<std::string,std::unique_ptr<std::ostream> > RooMsgService::_files
protected

Definition at line 229 of file RooMsgService.h.

◆ _globMinLevel

RooFit::MsgLevel RooMsgService::_globMinLevel
protected

Definition at line 230 of file RooMsgService.h.

◆ _lastMsgLevel

RooFit::MsgLevel RooMsgService::_lastMsgLevel
protected

Definition at line 231 of file RooMsgService.h.

◆ _levelNames

std::map<int,std::string> RooMsgService::_levelNames

Definition at line 192 of file RooMsgService.h.

◆ _showPid

bool RooMsgService::_showPid
protected

Definition at line 234 of file RooMsgService.h.

◆ _silentMode

bool RooMsgService::_silentMode
protected

Definition at line 233 of file RooMsgService.h.

◆ _streams

std::vector<StreamConfig> RooMsgService::_streams
protected

Definition at line 225 of file RooMsgService.h.

◆ _streamsSaved

std::stack<std::vector<StreamConfig> > RooMsgService::_streamsSaved
protected

Definition at line 226 of file RooMsgService.h.

◆ _topicNames

std::map<int,std::string> RooMsgService::_topicNames

Definition at line 193 of file RooMsgService.h.

Libraries for RooMsgService:

The documentation for this class was generated from the following files: