RooHelpers::HijackMessageStream Class Reference

Hijacks all messages with given level and topic (and optionally object name) while alive.

Use this like an ostringstream afterwards. The messages can e.g. be retrieved using str(). Useful for unit tests / debugging.

Definition at line 74 of file RooHelpers.h.

Public Member Functions
	HijackMessageStream (RooFit::MsgLevel level, RooFit::MsgTopic topics, const char *objectName=nullptr)
	Hijack all messages with given level and topics while this object is alive.
	~HijackMessageStream ()
	Deregister the hijacked stream and restore the stream state of all previous streams.
template<typename T >
const HijackMessageStream &	operator<< (const T &v) const
std::string	str ()
std::ostringstream &	stream ()

Private Attributes
std::vector< RooMsgService::StreamConfig >	_oldConf
RooFit::MsgLevel	_oldKillBelow
std::ostringstream	_str
Int_t	_thisStream

#include <RooHelpers.h>

Constructor & Destructor Documentation

HijackMessageStream()

RooHelpers::HijackMessageStream::HijackMessageStream	(	RooFit::MsgLevel	level,
		RooFit::MsgTopic	topics,
		const char *	objectName = nullptr
	)

Hijack all messages with given level and topics while this object is alive.

Parameters

[in]	level	Minimum level to hijack. Higher levels also get captured.
[in]	topics	Topics to hijack. Use | to combine different topics, and cast to RooFit::MsgTopic if necessary.
[in]	objectName	Only hijack messages from an object with the given name. Defaults to any object.

Definition at line 69 of file RooHelpers.cxx.

~HijackMessageStream()

RooHelpers::HijackMessageStream::~HijackMessageStream

(

)

Deregister the hijacked stream and restore the stream state of all previous streams.

Definition at line 102 of file RooHelpers.cxx.

Member Function Documentation

operator<<()

template<typename T >

const HijackMessageStream & RooHelpers::HijackMessageStream::operator<< ( const T &  v ) const

inline

Definition at line 78 of file RooHelpers.h.

str()

std::string RooHelpers::HijackMessageStream::str ( )

inline

Definition at line 82 of file RooHelpers.h.

stream()

std::ostringstream & RooHelpers::HijackMessageStream::stream ( )

inline

Definition at line 83 of file RooHelpers.h.

Member Data Documentation

_oldConf

std::vector<RooMsgService::StreamConfig> RooHelpers::HijackMessageStream::_oldConf

private

Definition at line 89 of file RooHelpers.h.

_oldKillBelow

RooFit::MsgLevel RooHelpers::HijackMessageStream::_oldKillBelow

private

Definition at line 88 of file RooHelpers.h.

_str

std::ostringstream RooHelpers::HijackMessageStream::_str

private

Definition at line 87 of file RooHelpers.h.

_thisStream

Int_t RooHelpers::HijackMessageStream::_thisStream

private

Definition at line 90 of file RooHelpers.h.

Libraries for RooHelpers::HijackMessageStream:

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

• roofit/roofitcore/inc/RooHelpers.h
• roofit/roofitcore/src/RooHelpers.cxx