org.oddjob.logging.log4j

Class Log4jArchiver

java.lang.Object

org.oddjob.logging.log4j.Log4jArchiver

All Implemented Interfaces:

LogArchiver

public class Log4jArchiver
extends Object
implements LogArchiver

A LogArchiver which archives using Log4j. This Archiver works by adding a Log4j appender to all Components in the hierarchy using their logger property.

Field Summary

Fields inherited from interface org.oddjob.logging.LogArchiver

MAX_HISTORY, NO_LOG_AVAILABLE

Constructor Summary

Constructors

Constructor and Description
Log4jArchiver(Object root, String pattern)

Method Summary

Methods

Modifier and Type	Method and Description
void	addLogListener(LogListener l, Object component, LogLevel level, long last, int history) Add a listener to the archiver which will receive all missed events.
static LogLevel	convertLevel(org.apache.log4j.Level level) Utility function to convert Log4j log level.
boolean	hasArchive(String archive)
void	onDestroy()
void	removeLogListener(LogListener l, Object component) Remove the LogListener.

Methods inherited from class java.lang.Object

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

Constructor Detail

Log4jArchiver

public Log4jArchiver(Object root,
             String pattern)

Method Detail

hasArchive

public boolean hasArchive(String archive)

addLogListener

public void addLogListener(LogListener l,
                  Object component,
                  LogLevel level,
                  long last,
                  int history)

Description copied from interface: LogArchiver

Add a listener to the archiver which will receive all missed events. The idea of receiving only missed events is to minimise network traffic when used remotely.

Event numbers begin at 0. To receive all events, last must be -1.

Specified by:

addLogListener in interface LogArchiver

Parameters:

l - The logListener which will receive the events.

level - The level of events required.

last - The last event number received. The LogArchive will not send messages from before this number.

history - The maximum messages to send up to the most recent.

removeLogListener

public void removeLogListener(LogListener l,
                     Object component)

Description copied from interface: LogArchiver

Remove the LogListener.

Specified by:

removeLogListener in interface LogArchiver

Parameters:

l - The LogListener.

onDestroy

public void onDestroy()

convertLevel

public static LogLevel convertLevel(org.apache.log4j.Level level)

Utility function to convert Log4j log level.

Parameters:

level - The log4j level.

Returns:

The Oddjob level.