de.fhg.igd.logging.log4j
Class Log4jWrapper

java.lang.Object
  de.fhg.igd.logging.AbstractWrapper
      de.fhg.igd.logging.log4j.Log4jWrapper

All Implemented Interfaces:

Wrapper

public class Log4jWrapper

extends AbstractWrapper

This class is a wrapper for a Logger object. It is responsible for the proper initialization of its target and the handling of configuration change requests. Furthermore, this is the point where log messages are leaving the scope of the Logging Framework since they are being handed over to the underlying Log4J logging mechanism.

Version:

"$Id: Log4jWrapper.java 1913 2007-08-08 02:41:53Z jpeters $"

Author:

Matthias Pressfreund

Field Summary

protected org.apache.log4j.Logger	logger_ The wrapped logger object
static String	LOGGER_CLASS The name of the wrapped logger class

Fields inherited from class de.fhg.igd.logging.AbstractWrapper

level_, lname_, name_, oname_

Constructor Summary

Log4jWrapper(String name, LoggerImpl ref)
Create a Log4jWrapper object.

Method Summary

protected void	addForwarderFor(URL url) Add a new Forwarder for the given URL to the wrapped logger.
protected void	initTarget(LoggerImpl ref) Initialize the implementation specific logger target.
void	postLogEntry(LogLevel level, String msg) Post a log entry into the underlying logging mechanism by means of the wrapped logger.
protected void	removeAllForwarders() Remove all Forwarder and similar objects (e.g.
protected void	removeForwarderFor(URL url) Remove a Forwarder for the given URL from the wrapped logger.
protected void	setLogLevel(LogLevel level) Set the log level of the wrapped logger.
String	toString()

Methods inherited from class de.fhg.igd.logging.AbstractWrapper

addForwarder, chronometerFor, dismiss, equals, getLogLevel, getName, hashCode, removeForwarder

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

LOGGER_CLASS

public static final String LOGGER_CLASS

The name of the wrapped logger class

See Also:

Constant Field Values

logger_

protected org.apache.log4j.Logger logger_

The wrapped logger object

Constructor Detail

Log4jWrapper

public Log4jWrapper(String name,
                    LoggerImpl ref)

Create a Log4jWrapper object.

Parameters:

name - The name of the wrapped logger

ref - A reference to the requesting instance

Method Detail

initTarget

protected void initTarget(LoggerImpl ref)

Description copied from class: AbstractWrapper

Initialize the implementation specific logger target.

Specified by:

initTarget in class AbstractWrapper

Parameters:

ref - The Logger implementation that originally requested this wrapper

postLogEntry

public void postLogEntry(LogLevel level,
                         String msg)

Description copied from interface: Wrapper

Post a log entry into the underlying logging mechanism by means of the wrapped logger.

Parameters:

level - The log level to be used

msg - The message to be posted by the wrapped logger

addForwarderFor

protected void addForwarderFor(URL url)

Description copied from class: AbstractWrapper

Add a new Forwarder for the given URL to the wrapped logger.

Specified by:

addForwarderFor in class AbstractWrapper

Parameters:

url - The new output destination to be added to the wrapped logger

removeForwarderFor

protected void removeForwarderFor(URL url)

Description copied from class: AbstractWrapper

Remove a Forwarder for the given URL from the wrapped logger.

Specified by:

removeForwarderFor in class AbstractWrapper

Parameters:

url - The output destination to be removed from the wrapped logger

removeAllForwarders

protected void removeAllForwarders()

Description copied from class: AbstractWrapper

Remove all Forwarder and similar objects (e.g. Handler instances for the Sun logging system) for the given URL.

Specified by:

removeAllForwarders in class AbstractWrapper

setLogLevel

protected void setLogLevel(LogLevel level)

Description copied from class: AbstractWrapper

Set the log level of the wrapped logger.

Specified by:

setLogLevel in class AbstractWrapper

Parameters:

level - The new log level

toString

public String toString()

Overrides:

toString in class AbstractWrapper