Log4j Version 1.2.14: Class LogManager

Log4j 1.2

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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.

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.

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.

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.

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.

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()
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Copyright 2000-2005 Apache Software Foundation.

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