Package org.slf4j

Class LoggerFactory

java.lang.Object

org.slf4j.LoggerFactory

public final class LoggerFactory
extends Object

The LoggerFactory is a utility class producing Loggers for various logging APIs, e.g. logback, reload4j, log4j and JDK 1.4 logging. Other implementations such as NOPLogger and SimpleLogger are also supported.

LoggerFactory is essentially a wrapper around an ILoggerFactory instance provided by a SLF4JServiceProvider.

Please note that all methods in LoggerFactory are static.

Author:

Alexander Dorokhine, Robert Elliot, Ceki Gülcü

Field Summary

Fields

Modifier and Type	Field	Description
static final String	PROVIDER_PROPERTY_KEY	System property for explicitly setting the provider class.

Method Summary

Modifier and Type	Method	Description
static ILoggerFactory	getILoggerFactory()	Return the ILoggerFactory instance in use.
static Logger	getLogger(Class<?> clazz)	Return a logger named corresponding to the class passed as parameter, using the statically bound ILoggerFactory instance.
static Logger	getLogger(String name)	Return a logger named according to the name parameter using the statically bound ILoggerFactory instance.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

PROVIDER_PROPERTY_KEY

public static final String PROVIDER_PROPERTY_KEY

System property for explicitly setting the provider class. If set and the provider could be instantiated, then the service loading mechanism will be bypassed.

Since:

2.0.9

See Also:

• Constant Field Values

Method Details

getLogger

public static Logger getLogger(String name)

Return a logger named according to the name parameter using the statically bound ILoggerFactory instance.

Parameters:

name - The name of the logger.

Returns:

logger

getLogger

public static Logger getLogger(Class<?> clazz)

Return a logger named corresponding to the class passed as parameter, using the statically bound ILoggerFactory instance.

In case the clazz parameter differs from the name of the caller as computed internally by SLF4J, a logger name mismatch warning will be printed but only if the slf4j.detectLoggerNameMismatch system property is set to true. By default, this property is not set and no warnings will be printed even in case of a logger name mismatch.

Parameters:

clazz - the returned logger will be named after clazz

Returns:

logger

See Also:

• Detected logger name mismatch

getILoggerFactory

public static ILoggerFactory getILoggerFactory()

Return the ILoggerFactory instance in use.

ILoggerFactory instance is bound with this class at compile time.

Returns:

the ILoggerFactory instance in use