Base class for Marlin processors. More...

#include <Processor.h>

Inheritance diagram for marlin::Processor:

Public Member Functions
	Processor (const std::string &typeName)
	Possible verbosity levels. More...

virtual	~Processor ()
	Destructor.

virtual Processor *	newProcessor ()=0
	Return a new instance of the processor. More...

virtual void	init ()
	Called at the begin of the job before anything is read. More...

virtual void	processRunHeader (LCRunHeader *)
	Called for every run, e.g. More...

virtual void	processEvent (LCEvent *)
	Called for every event - the working horse.

virtual void	check (LCEvent *)
	Called for every event - right after processEvent() has been called for this processor. More...

virtual void	end ()
	Called after data processing for clean up in the inverse order of the init() method so that resources allocated in the first processor also will be available for all following processors.

virtual const std::string &	type () const
	Return type name for the processor (as set in constructor).

virtual const std::string &	name () const
	Return name of this processor.

virtual const std::string &	logLevelName () const
	Return name of the local verbosity level of this processor - "" if not set.

virtual std::shared_ptr < StringParameters >	parameters ()
	Return parameters defined for this Processor.

virtual void	printDescription ()
	Print information about this processor in ASCII steering file format.

virtual void	printDescriptionXML (std::ostream &stream=std::cout)
	Print information about this processor in XML steering file format.

template<class T >
void	printParameters ()
	Print the parameters and their values depending on the given verbosity level.

void	printParameters ()
	Print the parameters and their values with verbosity level MESSAGE.

const std::string &	description ()
	Description of processor.

bool	isFirstEvent ()
	True if first event in processEvent(evt) - use this e.g. More...

std::string	getLCIOInType (const std::string &colName)
	Return the LCIO input type for the collection colName - empty string if colName is not a registered collection name.

std::string	getLCIOOutType (const std::string &colName)
	Return the LCIO output type for the collection colName - empty string if colName is not a registered collection name.

bool	isInputCollectionName (const std::string &parameterName)
	True if the given parameter defines an LCIO input collection, i.e. More...

bool	isOutputCollectionName (const std::string &parameterName)
	True if the given parameter defines an LCIO output collection.

virtual void	setParameters (std::shared_ptr< StringParameters > parameters)
	Helper function returns the ProcessorParameter for the given name. More...

virtual void	setName (const std::string &processorName)
	Set processor name.

Protected Member Functions
void	setReturnValue (bool val)
	Set the return value for this processor - typically at end of processEvent(). More...

void	setReturnValue (const std::string &name, bool val)
	Set a named return value for this processor - typically at end of processEvent() The value can be used in a condition in the steering file referred to by ProcessorName.name of the processor.

template<class T >
void	registerProcessorParameter (const std::string &parameterName, const std::string &parameterDescription, T &parameter, const T &defaultVal, int setSize=0)
	Register a steering variable for this processor - call in constructor of processor. More...

void	registerInputCollection (const std::string &collectionType, const std::string &parameterName, const std::string &parameterDescription, std::string &parameter, const std::string &defaultVal, int setSize=0)
	Specialization of registerProcessorParameter() for a parameter that defines an input collection - can be used fo checking the consistency of the steering file.

void	registerOutputCollection (const std::string &collectionType, const std::string &parameterName, const std::string &parameterDescription, std::string &parameter, const std::string &defaultVal, int setSize=0)
	Specialization of registerProcessorParameter() for a parameter that defines an output collection - can be used fo checking the consistency of the steering file.

void	registerInputCollections (const std::string &collectionType, const std::string &parameterName, const std::string &parameterDescription, StringVec &parameter, const StringVec &defaultVal, int setSize=0)
	Specialization of registerProcessorParameter() for a parameter that defines one or several input collections - can be used fo checking the consistency of the steering file.

template<class T >
void	registerOptionalParameter (const std::string &parameterName, const std::string &parameterDescription, T &parameter, const T &defaultVal, int setSize=0)
	Same as registerProcessorParameter except that the parameter is optional. More...

bool	parameterSet (const std::string &name)
	Tests whether the parameter has been set in the steering file.

void	checkForExistingParameter (const std::string &parameterName)
	Tests whether the parameter has been registered before. More...

template<class T >
void	message (const std::string &m) const
	Print message according to verbosity level of the templated parameter (one of DEBUG, MESSAGE, WARNING, ERROR ) and the global parameter "Verbosity". More...

template<class T >
void	message (const std::basic_ostream< char, std::char_traits< char > > &m) const
	Same as message(const std::string& message) except that it allows the output of more complex messages in the argument using the log() method, e.g. More...

std::stringstream &	log () const
	Returns an empty stringstream that is used by the message method. More...

Protected Attributes
std::string	_description =""
	Describes what the processor does. More...

std::string	_typeName =""

std::string	_processorName =""

std::shared_ptr< StringParameters >	_parameters {}

ProcParamMap	_map {}

bool	_isFirstEvent = false

LCIOTypeMap	_inTypeMap {}

LCIOTypeMap	_outTypeMap {}

std::string	_logLevelName {}

Friends
class	ProcessorMgr

class	CMProcessor

class	XMLFixCollTypes

Detailed Description

Base class for Marlin processors.

Users can optionaly overwrite the following methods:
init, processRun, processEvent and end.
Use registerProcessorParameter to define all parameters that the module uses. Registered parameters are filled automatically before init() is called. With MyAplication -l you can print a list of available processors including the steering parameters they use/need.
With MyAplication -x you can print an example XML steering file for all known processors.

See Also: init; processRun; processEvent; end

Author: F. Gaede, DESY

Version

Id:: Processor.h,v 1.38 2008-06-26 10:25:36 gaede Exp

Constructor & Destructor Documentation

marlin::Processor::Processor ( const std::string & typeName )

Possible verbosity levels.

Global variable used to set the verbosity level Default constructor - subclasses need to call this in their default constructor.

References marlin::ProcessorMgr::instance(), registerOptionalParameter(), and marlin::ProcessorMgr::registerProcessor().

Member Function Documentation

virtual void marlin::Processor::check ( LCEvent * )

inlinevirtual

Called for every event - right after processEvent() has been called for this processor.

Use to check processing and/or produce check plots.

Reimplemented in marlin::SimpleFastMCProcessor, marlin::AIDAProcessor, marlin::EventSelector, marlin::TestProcessor, MemoryMonitor, and Statusmonitor.

void marlin::Processor::checkForExistingParameter ( const std::string & parameterName )

inlineprotected

Tests whether the parameter has been registered before.

Parameters

name	name of the parameter to check

Exceptions

logic_error if parameter has been registered before

virtual void marlin::Processor::init ( )

inlinevirtual

Called at the begin of the job before anything is read.

Use to initialize the processor, e.g. book histograms.

Reimplemented in marlin::SimpleFastMCProcessor, marlin::LCIOOutputProcessor, marlin::ConditionsProcessor, marlin::AIDAProcessor, marlin::StdHepReader, marlin::EventSelector, marlin::TestProcessor, MemoryMonitor, and Statusmonitor.

bool marlin::Processor::isFirstEvent ( )

inline

True if first event in processEvent(evt) - use this e.g.

to initialize histograms etc.

Referenced by marlin::SimpleFastMCProcessor::check(), and marlin::TestProcessor::processEvent().

bool marlin::Processor::isInputCollectionName ( const std::string & parameterName )

True if the given parameter defines an LCIO input collection, i.e.

the type has been defined with setLCIOInType().

Referenced by getLCIOInType(), marlin::XMLFixCollTypes::parse(), and printDescriptionXML().

std::stringstream & marlin::Processor::log ( ) const

protected

Returns an empty stringstream that is used by the message method.

Deprecated:

template<class T >

void marlin::Processor::message ( const std::string & m ) const

inlineprotected

Print message according to verbosity level of the templated parameter (one of DEBUG, MESSAGE, WARNING, ERROR ) and the global parameter "Verbosity".

If Marlin is compiled w/o debug mode ($MARLINDEBUG not set) then DEBUG messages will be ignored completely at compile time, i.e. no output (and code!) will be generated, regardless of the value of the "Verbosity" parameter. This is useful in order to save CPU time in production mode.
Every line of the output string will be prepended by the verbosity level of the message and the processor name, e.g:

  [ MESSAGE "MyTestProcessor" ]  processing event 42 in run 4711

Use this method for simple strings. In order to use more complex messages, including numbers, use:

See Also: void message( const std::basic_ostream<char, std::char_traits<char> >& m)

Deprecated:

template<class T >

void marlin::Processor::message ( const std::basic_ostream< char, std::char_traits< char > > & m ) const

inlineprotected

Same as message(const std::string& message) except that it allows the output of more complex messages in the argument using the log() method, e.g.

:

message<MESSAGE>( log() 
                  << " processing event " << evt->getEventNumber() 
                  << "  in run "          << evt->getRunNumber() 
                  ) ;

Deprecated:

See Also: void message( const std::string& message ); std::stringstream& log()

virtual Processor* marlin::Processor::newProcessor ( )

pure virtual

Return a new instance of the processor.

Has to be implemented by subclasses.

Implemented in marlin::SimpleFastMCProcessor, marlin::LCIOOutputProcessor, marlin::ConditionsProcessor, marlin::AIDAProcessor, marlin::EventSelector, marlin::StdHepReader, MemoryMonitor, marlin::TestProcessor, and Statusmonitor.

Referenced by marlin::ProcessorMgr::addActiveProcessor().

virtual void marlin::Processor::processRunHeader ( LCRunHeader * )

inlinevirtual

Called for every run, e.g.

overwrite to initialize run dependent histograms.

Reimplemented in marlin::SimpleFastMCProcessor, marlin::LCIOOutputProcessor, marlin::AIDAProcessor, marlin::EventSelector, marlin::TestProcessor, MemoryMonitor, and Statusmonitor.

template<class T >

void marlin::Processor::registerOptionalParameter	(	const std::string &	parameterName,
		const std::string &	parameterDescription,
		T &	parameter,
		const T &	defaultVal,
		int	setSize = `0`
	)

inlineprotected

Same as registerProcessorParameter except that the parameter is optional.

The value of the parameter will still be set to the default value, which is used to print an example steering line. Use parameterSet() to check whether it actually has been set in the steering file.

Referenced by Processor().

template<class T >

void marlin::Processor::registerProcessorParameter	(	const std::string &	parameterName,
		const std::string &	parameterDescription,
		T &	parameter,
		const T &	defaultVal,
		int	setSize = `0`
	)

inlineprotected

Register a steering variable for this processor - call in constructor of processor.

The default value has to be of the same type as the parameter, e.g.
float _cut ;
...
registerProcessorParameter( "Cut", "cut...", _cut , float( 3.141592 ) ) ;
as implicit conversions don't work for templates.
The optional parameter setSize is used for formating the printout of parameters. This can be used if the parameter values are expected to come in sets of fixed size.

void marlin::Processor::setParameters ( std::shared_ptr< StringParameters > parameters )

virtual

Helper function returns the ProcessorParameter for the given name.

Initialize the parameters

References parameterSet().

Referenced by marlin::ProcessorMgr::addActiveProcessor().

void marlin::Processor::setReturnValue ( bool val )

protected

Set the return value for this processor - typically at end of processEvent().

The value can be used in a condition in the steering file referred to by the name of the processor.

References marlin::ProcessorMgr::instance(), and marlin::ProcessorMgr::setProcessorReturnValue().

Referenced by marlin::TestProcessor::processEvent(), and marlin::EventSelector::processEvent().