org.apache.avalon.excalibur.logger.log4j

Class Log4JConfAdapter

java.lang.Object

org.apache.avalon.framework.logger.AbstractLogEnabled

org.apache.avalon.excalibur.logger.log4j.Log4JAdapter

org.apache.avalon.excalibur.logger.log4j.Log4JConfAdapter

All Implemented Interfaces:

LoggerManager, org.apache.avalon.framework.configuration.Configurable, org.apache.avalon.framework.context.Contextualizable, org.apache.avalon.framework.logger.LogEnabled

public class Log4JConfAdapter
extends Log4JAdapter
implements org.apache.avalon.framework.configuration.Configurable, org.apache.avalon.framework.context.Contextualizable

A LoggerManager for Log4j that will configure the Log4j subsystem using specified configuration.

Note that in case of logging errors Log4J will (via the org.apache.log4j.helpers.LogLog class) write to System.err. This can be switched off but we can not substitute our own handler to log erros the way we prefer to do this. :-(

So, unlike the LogKit case we have no Log4JLogger helper to implement and hence a different architecture: this class is not a helper but a regular subclass of Log4JAdapter.

Attach PrefixDecorator and/or CachingDecorator if desired.

Since:

4.0

Version:

CVS $Revision: 1.4 $ $Date: 2004/03/10 13:54:51 $

Author:

Avalon Development Team

Field Summary

Fields

Modifier and Type	Field and Description
private org.apache.avalon.framework.context.Context	m_context

Fields inherited from class org.apache.avalon.excalibur.logger.log4j.Log4JAdapter

m_hierarchy

Fields inherited from interface org.apache.avalon.excalibur.logger.LoggerManager

ROLE

Constructor Summary

Constructors

Constructor and Description
Log4JConfAdapter() This constructor creates a completely independent Log4J hierarchy.

Method Summary

Methods

Modifier and Type	Method and Description
void	configure(org.apache.avalon.framework.configuration.Configuration configuration) Feed our configuration to Log4J.
void	contextualize(org.apache.avalon.framework.context.Context context)

Methods inherited from class org.apache.avalon.excalibur.logger.log4j.Log4JAdapter

getDefaultLogger, getLoggerForCategory

Methods inherited from class org.apache.avalon.framework.logger.AbstractLogEnabled

enableLogging, getLogger, setupLogger, setupLogger, setupLogger

Methods inherited from class java.lang.Object

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

Field Detail

m_context

private org.apache.avalon.framework.context.Context m_context

Constructor Detail

Log4JConfAdapter

public Log4JConfAdapter()

This constructor creates a completely independent Log4J hierarchy. If you want to log to an existing Log4J hierarchy please use Log4JAdapter. This class always creates a new private hierarchy and configures it all by itself.

Method Detail

contextualize

public void contextualize(org.apache.avalon.framework.context.Context context)
                   throws org.apache.avalon.framework.context.ContextException

Specified by:

contextualize in interface org.apache.avalon.framework.context.Contextualizable

Throws:

org.apache.avalon.framework.context.ContextException

configure

public void configure(org.apache.avalon.framework.configuration.Configuration configuration)
               throws org.apache.avalon.framework.configuration.ConfigurationException

Feed our configuration to Log4J.

Specified by:

configure in interface org.apache.avalon.framework.configuration.Configurable

Throws:

org.apache.avalon.framework.configuration.ConfigurationException