hep.aida.ref.sql.JAS3Plugin
Class JAS3Log4JAppender

java.lang.Object
  org.apache.log4j.AppenderSkeleton
      org.apache.log4j.WriterAppender
          hep.aida.ref.sql.JAS3Plugin.JAS3Log4JAppender

All Implemented Interfaces:

Appender, OptionHandler

public class JAS3Log4JAppender
extends WriterAppender

JAS3Log4JAppender redirects Log4J messages to JAS3 Console.

$Id: JAS3Log4JAppender.java,v 1.4 2007/05/23 16:38:44 hrivnac Exp $

 $Log: JAS3Log4JAppender.java,v $
 Revision 1.4  2007/05/23 16:38:44  hrivnac
 logical connections for Plotter; better UML

 Revision 1.3  2004/10/29 22:27:25  hrivnac
 imports corrected

 Revision 1.2  2004/10/27 21:21:20  hrivnac
 better documentation

 Revision 1.1  2004/10/27 16:28:34  hrivnac
 Log4J logging is connected to JAS3 Console

 

Version:

$Id: JAS3Log4JAppender.java,v 1.4 2007/05/23 16:38:44 hrivnac Exp $

Author:

J.Hrivnac

Field Summary

private static Studio	_app
private static Console	_console
private static PrintStream	_out

Fields inherited from class org.apache.log4j.WriterAppender

encoding, immediateFlush, qw

Fields inherited from class org.apache.log4j.AppenderSkeleton

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

Constructor Summary

JAS3Log4JAppender()

Method Summary

void	append(LoggingEvent event) Append message to output Console.
protected void	closeWriter() Override the parent WriterAppender.closeWriter() implementation to dispose Console..
(package private) static void	init(Object o, Studio app) Configure and connect to JAS3.
boolean	requiresLayout() Requires a layout.
private static void	setConsole() Create Console if it doesn't exist.
void	setLayout(Layout layout) Set Layout.

Methods inherited from class org.apache.log4j.WriterAppender

activateOptions, checkEntryConditions, close, createWriter, getEncoding, getImmediateFlush, reset, setEncoding, setErrorHandler, setImmediateFlush, setWriter, subAppend, writeFooter, writeHeader

Methods inherited from class org.apache.log4j.AppenderSkeleton

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

Methods inherited from class java.lang.Object

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

Field Detail

_app

private static Studio _app

_console

private static Console _console

_out

private static PrintStream _out

Constructor Detail

JAS3Log4JAppender

public JAS3Log4JAppender()

Method Detail

init

static void init(Object o,
                 Studio app)

Configure and connect to JAS3.

Parameters:

o - The Object used to locate log4j configuration file.

app - The JAS3 Studio to display all messages.

append

public void append(LoggingEvent event)

Append message to output Console. Show eventual Throwable in Application popup window.

Overrides:

append in class WriterAppender

Parameters:

event - The LoggingEvent to be displayed.

requiresLayout

public boolean requiresLayout()

Requires a layout.

Specified by:

requiresLayout in interface Appender

Overrides:

requiresLayout in class WriterAppender

Returns:

true

closeWriter

protected final void closeWriter()

Override the parent WriterAppender.closeWriter() implementation to dispose Console..

Overrides:

closeWriter in class WriterAppender

setLayout

public void setLayout(Layout layout)

Set Layout.

Specified by:

setLayout in interface Appender

Overrides:

setLayout in class AppenderSkeleton

Parameters:

layout - The Layout to be set.

setConsole

private static void setConsole()

Create Console if it doesn't exist.