LogConfigHandler Class Reference

The LogConfigHandler provides the functionality to configure the internal logging of OpenMS algorithms that use the global instances of LogStream. More...

#include <OpenMS/CONCEPT/LogConfigHandler.h>

Public Member Functions
Param	parse (const StringList &setting)
	Translates the given list of parameter settings into a LogStream configuration. More...
void	configure (const Param &param)
	Applies the given parameters (param) to the current configuration. More...
ostream &	getStream (const String &stream_name)
	Returns a reference to the registered stream with the name stream_name. More...
virtual	~LogConfigHandler ()
	Destructor. More...

Static Public Member Functions
static LogConfigHandler &	getInstance ()
	Returns the instance of LogConfigHandler. More...

Static Public Attributes
static String	PARAM_NAME
	Name of the parameter in which the configuration should be stored. More...

Protected Member Functions
Logger::LogStream &	getLogStreamByName_ (const String &stream_name)
	Returns the named global instance of the LogStream. (OpenMS::Log_debug, OpenMS::Log_info, OpenMS::Log_warn, OpenMS::Log_error, OpenMS::Log_fatal) More...
std::set< String > &	getConfigSetByName_ (const String &stream_type)
	Returns the correct set of registered streams for the given stream type (e.g. DEBUG, INFO, ..) More...
StreamHandler::StreamType	getStreamTypeByName_ (const String &stream_type)
	Translates the given stream_type String into a valid StreamHandler::StreamType. More...

Protected Attributes
std::set< String >	debug_streams_
	List of all streams that were appended to OpenMS::Log_debug. More...
std::set< String >	info_streams_
	List of all streams that were appended to OpenMS::Log_info. More...
std::set< String >	warn_streams_
	List of all streams that were appended to OpenMS::Log_warn. More...
std::set< String >	error_streams_
	List of all streams that were appended to OpenMS::Log_error. More...
std::set< String >	fatal_streams_
	List of all streams that were appended to OpenMS::Log_fatal. More...
std::map< String, StreamHandler::StreamType >	stream_type_map_
	Maps the registered streams to a StreamHandler::StreamType. More...

Private Member Functions
	LogConfigHandler ()
	Default constructor. More...
	LogConfigHandler (const LogConfigHandler &source)
	Copy constructor. More...
virtual LogConfigHandler &	operator= (const LogConfigHandler &source)
	Assignment operator. More...

Static Private Attributes
static LogConfigHandler *	instance_

Friends
std::ostream &	operator<< (std::ostream &os, LogConfigHandler const &lch)
	Overload for the insertion operator (operator<<) to have a formatted output of the LogConfigHandler. More...

Detailed Description

The LogConfigHandler provides the functionality to configure the internal logging of OpenMS algorithms that use the global instances of LogStream.

Constructor & Destructor Documentation

~LogConfigHandler()

virtual ~LogConfigHandler ( )

virtual

Destructor.

LogConfigHandler() [1/2]

LogConfigHandler ( )

private

Default constructor.

LogConfigHandler() [2/2]

LogConfigHandler ( const LogConfigHandler &  source )

private

Copy constructor.

Member Function Documentation

configure()

void configure

(

const Param &

param

)

Applies the given parameters (param) to the current configuration.

<LOG_NAME> <ACTION> <PARAMETER> <STREAMTYPE>

LOG_NAME: DEBUG,INFO,WARNING,ERROR,FATAL_ERROR ACTION: add,remove,clear PARAMETER: for 'add'/'remove' it is the stream name (cout, cerr or a filename), 'clear' does not require any further parameter STREAMTYPE: FILE, STRING (for a StringStream, which you can grab by this name using getStream() )

You cannot specify a file named "cout" or "cerr" even if you specify streamtype 'FILE' - the handler will mistake this for the internal streams, but you can use "./cout" to print to a file named cout.

A classical configuration would contain a list of settings e.g.

DEBUG add debug.log FILE
INFO remove cout FILE (FILE will be ignored)
INFO add string_stream1 STRING

Exceptions

Exception::ElementNotFound	If the LogStream (first argument) does not exist.
Exception::FileNotWritable	If a file (or stream) should be opened as log file (or stream) that is not accessible.
Exception::IllegalArgument	If a stream should be registered, that was already registered with a different type.

getConfigSetByName_()

std::set<String>& getConfigSetByName_ ( const String &  stream_type )

protected

Returns the correct set of registered streams for the given stream type (e.g. DEBUG, INFO, ..)

Parameters

stream_type

String representation of the stream type (DEBUG, INFO, ..)

Exceptions

ElementNotFoundException

if the given stream_type does not correspond to one of the known LogStreams

getInstance()

static LogConfigHandler& getInstance ( )

static

Returns the instance of LogConfigHandler.

getLogStreamByName_()

Logger::LogStream& getLogStreamByName_ ( const String &  stream_name )

protected

Returns the named global instance of the LogStream. (OpenMS::Log_debug, OpenMS::Log_info, OpenMS::Log_warn, OpenMS::Log_error, OpenMS::Log_fatal)

Parameters

stream_name

Name of the stream. Should be DEBUG,INFO,WARNING,ERROR,FATAL_ERROR.

Exceptions

ElementNotFoundException

if the given stream_name does not correspond to one of the known LogStream instances

Returns

A reference to the named LogStream

getStream()

ostream& getStream

(

const String &

stream_name

)

Returns a reference to the registered stream with the name stream_name.

Exceptions

Exception::IllegalArgument

If no stream with the name stream_name was registered before.

Returns

Reference to the stream.

getStreamTypeByName_()

StreamHandler::StreamType getStreamTypeByName_ ( const String &  stream_type )

protected

Translates the given stream_type String into a valid StreamHandler::StreamType.

Parameters

stream_type

String representation of the StreamHandler::StreamType

Exceptions

Exception::IllegalArgument

is thrown when the passed stream_type does not correspond to an existing StreamHandler::StreamType

Returns

The requested StreamHandler::StreamType

operator=()

virtual LogConfigHandler& operator= ( const LogConfigHandler &  source )

privatevirtual

Assignment operator.

parse()

Param parse

(

const StringList &

setting

)

Translates the given list of parameter settings into a LogStream configuration.

Translates the given list of parameter settings into a LogStream configuration. Usually this list stems from a command line call.

Each element in the stringlist should follow this naming convention

<LOG_NAME> <ACTION> <PARAMETER>

with LOG_NAME: DEBUG,INFO,WARNING,ERROR,FATAL_ERROR ACTION: add,remove,clear PARAMETER: for 'add'/'remove' it is the stream name (cout, cerr or a filename), 'clear' does not require any further parameter

Example: DEBUG add debug.log

This function will not apply to settings to the log handlers. Use configure() for that.

Parameters

setting

StringList containing the configuration options

Exceptions

Exception::ParseError

In case of an invalid configuration.

Returns

Param object containing all settings, that can be applied using the LogConfigHandler::configure() method

Friends And Related Function Documentation

operator<<

std::ostream& operator<< ( std::ostream &  os, LogConfigHandler const &  lch  )

friend

Overload for the insertion operator (operator<<) to have a formatted output of the LogConfigHandler.

Member Data Documentation

debug_streams_

std::set<String> debug_streams_

protected

List of all streams that were appended to OpenMS::Log_debug.

error_streams_

std::set<String> error_streams_

protected

List of all streams that were appended to OpenMS::Log_error.

fatal_streams_

std::set<String> fatal_streams_

protected

List of all streams that were appended to OpenMS::Log_fatal.

info_streams_

std::set<String> info_streams_

protected

List of all streams that were appended to OpenMS::Log_info.

instance_

LogConfigHandler* instance_

staticprivate

PARAM_NAME

String PARAM_NAME

static

Name of the parameter in which the configuration should be stored.

stream_type_map_

std::map<String, StreamHandler::StreamType> stream_type_map_

protected

Maps the registered streams to a StreamHandler::StreamType.

warn_streams_

std::set<String> warn_streams_

protected

List of all streams that were appended to OpenMS::Log_warn.