org.apache.log4j
Class LogManager

java.lang.Object
  org.apache.log4j.LogManager

public class LogManager
extends Object

Use the LogManager class to retreive Logger instances or to operate on the current LoggerRepository. When the LogManager class is loaded into memory the default initalzation procedure is inititated. The default intialization procedure is described in the short log4j manual.

Author:

Ceki Gülcü

Field Summary

static String	CONFIGURATOR_CLASS_KEY Deprecated. This variable is for internal use only. It will become private in future versions.
static String	DEFAULT_CONFIGURATION_FILE Deprecated. This variable is for internal use only. It will become package protected in future versions.
static String	DEFAULT_CONFIGURATION_KEY Deprecated. This variable is for internal use only. It will become private in future versions.
static String	DEFAULT_INIT_OVERRIDE_KEY Deprecated. This variable is for internal use only. It will become private in future versions.

Constructor Summary

LogManager()

Method Summary

static Logger	exists(String name)
static Enumeration	getCurrentLoggers()
static Logger	getLogger(Class clazz) Retrieve the appropriate Logger instance.
static Logger	getLogger(String name) Retrieve the appropriate Logger instance.
static Logger	getLogger(String name, LoggerFactory factory) Retrieve the appropriate Logger instance.
static LoggerRepository	getLoggerRepository()
static Logger	getRootLogger() Retrieve the appropriate root logger.
static void	resetConfiguration()
static void	setRepositorySelector(RepositorySelector selector, Object guard) Sets LoggerFactory but only if the correct guard is passed as parameter.
static void	shutdown()

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_CONFIGURATION_FILE

public static final String DEFAULT_CONFIGURATION_FILE

Deprecated. This variable is for internal use only. It will become package protected in future versions.

See Also:

Constant Field Values

DEFAULT_CONFIGURATION_KEY

public static final String DEFAULT_CONFIGURATION_KEY

Deprecated. This variable is for internal use only. It will become private in future versions.

See Also:

Constant Field Values

CONFIGURATOR_CLASS_KEY

public static final String CONFIGURATOR_CLASS_KEY

Deprecated. This variable is for internal use only. It will become private in future versions.

See Also:

Constant Field Values

DEFAULT_INIT_OVERRIDE_KEY

public static final String DEFAULT_INIT_OVERRIDE_KEY

Deprecated. This variable is for internal use only. It will become private in future versions.

See Also:

Constant Field Values

Constructor Detail

LogManager

public LogManager()

Method Detail

setRepositorySelector

public static void setRepositorySelector(RepositorySelector selector,
                                         Object guard)
                                  throws IllegalArgumentException

Sets LoggerFactory but only if the correct guard is passed as parameter.

Initally the guard is null. If the guard is null, then invoking this method sets the logger factory and the guard. Following invocations will throw a IllegalArgumentException, unless the previously set guard is passed as the second parameter.

This allows a high-level component to set the RepositorySelector used by the LogManager.

For example, when tomcat starts it will be able to install its own repository selector. However, if and when Tomcat is embedded within JBoss, then JBoss will install its own repository selector and Tomcat will use the repository selector set by its container, JBoss.

Throws:

IllegalArgumentException

getLoggerRepository

public static LoggerRepository getLoggerRepository()

getRootLogger

public static Logger getRootLogger()

Retrieve the appropriate root logger.

getLogger

public static Logger getLogger(String name)

Retrieve the appropriate Logger instance.

getLogger

public static Logger getLogger(Class clazz)

Retrieve the appropriate Logger instance.

getLogger

public static Logger getLogger(String name,
                               LoggerFactory factory)

Retrieve the appropriate Logger instance.

exists

public static Logger exists(String name)

getCurrentLoggers

public static Enumeration getCurrentLoggers()

shutdown

public static void shutdown()

resetConfiguration

public static void resetConfiguration()