oranjestad.commons.logging
Class Log4JLoggerToJDK14Adapter

java.lang.Object
  org.apache.log4j.AppenderSkeleton
      oranjestad.commons.logging.Log4JLoggerToJDK14Adapter

All Implemented Interfaces:

org.apache.log4j.Appender, org.apache.log4j.spi.OptionHandler

public class Log4JLoggerToJDK14Adapter
extends org.apache.log4j.AppenderSkeleton

Class designed to handle log4j logging events by routing them to the JDK logger. This class is useful if you are combining libraries, some using log4j, others use JDK logging.

Usage

This class is intended to be added as the sole appender to the log4js Root Handler.

 Log4JLoggerToJDK14Adapter.installAdapter();
 

Can be used (or called from Spring as a factory-method) to install this adapter and begin routing messages to the JDK logger.

Implementation Notes

installAdapter() will deregister any log4j logging appenders already in place, this class is not really designed to allow continued log4j logging configuration, but instead assumes you want the events adapted to JDK logging where they can be properly configured.

Log levels are mapped as follows

Log4j Level	JDK Level
ALL	FINEST
DEBUG	FINER
WARN	WARNING
INFO	INFO
ERROR	SEVERE
(any level higher than ERROR)	SEVERE

Since:

1.0

Author:

Bryant Harris

Field Summary

Fields inherited from class org.apache.log4j.AppenderSkeleton

closed, errorHandler, headFilter, layout, name, tailFilter, threshold

Constructor Summary

Log4JLoggerToJDK14Adapter()

Method Summary

protected void	append(org.apache.log4j.spi.LoggingEvent logEvent)
void	close()
static Log4JLoggerToJDK14Adapter	installAdapter() Static method for installing this adapter as the log4j's Root Logger's appender.
boolean	requiresLayout()

Methods inherited from class org.apache.log4j.AppenderSkeleton

activateOptions, addFilter, clearFilters, doAppend, finalize, getErrorHandler, getFilter, getFirstFilter, getLayout, getName, getThreshold, isAsSevereAsThreshold, setErrorHandler, setLayout, setName, setThreshold

Methods inherited from class java.lang.Object

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

Constructor Detail

Log4JLoggerToJDK14Adapter

public Log4JLoggerToJDK14Adapter()

Method Detail

installAdapter

public static Log4JLoggerToJDK14Adapter installAdapter()

Static method for installing this adapter as the log4j's Root Logger's appender. This method will deregister any other appenders from the root logger.

Returns:

The appender it registered with the log4j logger.

Since:

1.0

append

protected void append(org.apache.log4j.spi.LoggingEvent logEvent)

Specified by:

append in class org.apache.log4j.AppenderSkeleton

close

public void close()

Specified by:

close in interface org.apache.log4j.Appender

Specified by:

close in class org.apache.log4j.AppenderSkeleton

requiresLayout

public boolean requiresLayout()

Specified by:

requiresLayout in interface org.apache.log4j.Appender

Specified by:

requiresLayout in class org.apache.log4j.AppenderSkeleton