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From "Douglas WF Acheson" <d...@dwfa.ca>
Subject RE: how to log to different files
Date Tue, 01 Jun 2004 23:27:31 GMT
This is what I have and it seems to work.

The config file.

<?xml version = "1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration debug = "false" xmlns:log4j =
'http://jakarta.apache.org/log4j/'>

	<!--
		Define the debug log async appender
	-->
	<appender name = "debug.async" class =
"org.apache.log4j.AsyncAppender">
		<param name = "BufferSize"   value = "10240"/>
		<param name = "LocationInfo" value = "true"/>
		<appender-ref ref = "debug.file"/>
	</appender>

	<!--
		Define the debug log worker appender
	-->
	<appender name = "debug.file" class =
"org.apache.log4j.FileAppender">
		<param name = "Append" value = "true"/>
		<param name = "File" value = "debug.log"/>
		<layout class = "org.apache.log4j.PatternLayout">
			<param name = "ConversionPattern" value =
"[%-d{MM/dd/yyyy HH:mm:ss.SSS}][%l - %t] %m%n"/>
		</layout>
	</appender>

<!-- **********************************************************************
-->

	<!--
		Define the error log async appender
	-->
	<appender name = "error.async" class =
"org.apache.log4j.AsyncAppender">
		<param name = "BufferSize"   value = "10240"/>
		<param name = "LocationInfo" value = "true"/>
		<appender-ref ref = "error.file"/>
	</appender>

	<!--
		Define the error log worker appender
	-->
	<appender name = "error.file" class =
"org.apache.log4j.FileAppender">
		<param name = "Append" value = "true"/>
		<param name = "File"   value = "error.log"/>
		<layout class = "org.apache.log4j.PatternLayout">
			<param name = "ConversionPattern" value =
"[%-d{MM/dd/yyyy}][%l - %t] %m%n"/>
		</layout>
	</appender>

<!-- **********************************************************************
-->

	<!--
		Define the debug log logger
	-->
	<logger name = "debug" additivity = "false">
		<appender-ref ref = "debug.async"/>
	</logger>

	<!--
		Define the error log logger
	-->
	<logger name = "error" additivity = "false">
		<appender-ref ref = "error.async"/>
	</logger>

<!-- **********************************************************************
-->

	<root>
		<level value = "debug"/>
		<!-- appender-ref ref = "debug.async"/ -->
	</root>
</log4j:configuration> 

And the code snipet:

  DOMConfigurator.configure(args[0]) ;
  Logger.getLogger("error") ;
  Logger.getLogger("debug") ;

I have include the two file for full reference ....

dwfa

-----Original Message-----
From: Sebastian Ho [mailto:sebastianh@bii.a-star.edu.sg] 
Sent: June 1, 2004 3:34 AM
To: log4j-user@logging.apache.org
Subject: how to log to different files

Hi

I wish to have output from classes to go into a log file and some other
classes (from the same packages) into another log file. I have the following
log4j.properties configuration but it doesn't work.

>>From the config, there are 4 fours that I wish to go into 'searchfile'
and all the other classes to log to 'file'.

What this produces is both files (searchfile and file) are created and
contains exactly the same logs. All logs (including those from the 4
classes) goes into both the files.

This is what I have in my Java files.

static Logger logger = Logger.getLogger(CatCrawler.class);
PropertyConfigurator.configure(path_to_log4j.properties_file);


============================================================================
=====
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.File=${user.home}/.catcrawler/log/application.log
log4j.appender.file.threshold=debug
log4j.appender.file.append=false
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d [%t] %5p %c{1}:%M - %m%n

log4j.appender.searchfile=org.apache.log4j.FileAppender
log4j.appender.searchfile.File=${user.home}/.catcrawler/log/search.log
log4j.appender.searchfile.threshold=debug
log4j.appender.searchfile.append=false
log4j.appender.searchfile.layout=org.apache.log4j.PatternLayout
log4j.appender.searchfile.layout.ConversionPattern=%d [%t] %5p %c{1}:%M
- %m%n

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.threshold=debug
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d [%t] %5p %c{1}:%M - %m%n

log4j.rootLogger=DEBUG, file, stdout

log4j.logger.sg.edu.astar.bii.catcrawler.ui.CrawlSearchProcess = DEBUG,
searchfile log4j.logger.sg.edu.astar.bii.catcrawler.crawler.WebCrawler =
DEBUG, searchfile
log4j.logger.sg.edu.astar.bii.catcrawler.crawler.HTMLFilter = DEBUG,
searchfile log4j.logger.sg.edu.astar.bii.catcrawler.crawler.IndexHTML =
DEBUG, searchfile

============================================================================
=====

Thanks

Sebastian Ho
BII


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