how to disable the log

[shyam sunder prasad]

hi friends,

i am using log4j in my application . if suppose i want to disable the log then what i have to do?

i mean ,any property is there to disable the log. please help me.

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/"
	debug="false">
	<appender name="console" class="org.apache.log4j.ConsoleAppender">
		<param name="Threshold" value="info" />
		<param name="Target" value="System.out" />
		<layout class="org.apache.log4j.PatternLayout">
			<param name="ConversionPattern" value="%d{ABSOLUTE} [%t] %-5p %c{1} - %m%n" />
		</layout>
		<filter class="org.apache.log4j.filter.ExpressionFilter">
			<param name="Expression"
				value="EXCEPTION ~= org.hibernate.LazyInitializationException" />
			<param name="AcceptOnMatch" value="false" />
		</filter>
	</appender>
	<!--<appender name="rolling-file" class="org.apache.log4j.RollingFileAppender"> 
		<param name="file" value="/usr/nirvahak_workspace/nirvahak.log"/> <param 
		name="MaxFileSize" value="1000KB"/> Keep one backup file <param name="MaxBackupIndex" 
		value="4"/> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" 
		value="%d [%t] %-5p %l - %m%n"/> </layout> </appender> -->

	<appender name="rolling-file" class="org.apache.log4j.FileAppender">
		<param name="file" value="logs/nirvahak.log" />
		<param name="Append" value="false" />
		<layout class="org.apache.log4j.PatternLayout">
			<param name="ConversionPattern" value="%-20d{dd/MMM/yyyy HH:mm:ss} - %-5p - %m%n" />
		</layout>
		<filter class="org.apache.log4j.filter.ExpressionFilter">
			<param name="Expression"
				value="EXCEPTION ~= org.hibernate.LazyInitializationException" />
			<param name="AcceptOnMatch" value="false" />
		</filter>
	</appender>

	<!-- <logger name="org.apache.commons.digester"> <level value="error" /> 
		<appender-ref ref="console" /> </logger> -->

	<logger name="org.hibernate" additivity="false">
		<level value="error" />
		<appender-ref ref="rolling-file" />
		<appender-ref ref="console" />

	</logger>
	<logger name="net.sf.ehcache" additivity="false">
		<level value="error" />
		<appender-ref ref="rolling-file" />
		<appender-ref ref="console" />
	</logger>

	<!-- <logger name="org.hibernate.engine.loading.LoadContexts" additivity="false"> 
		<level value="error" /> <appender-ref ref="console" /> </logger> -->
	<root>
		<priority value="warn" />
		<appender-ref ref="console" />
		<appender-ref ref="rolling-file" />
	</root>

</log4j:configuration>

[Peter Johnson]

First, please use code tags when posting source code, it makes the source much easier to read. I edited your post for you this time.

As far as turning off the logging, a few ways:

a) Delete the log4j.xml file. If it is not there, logging will not be initialized. Though Log4J does complain about not finding a config file.
b) Create an appender that uses org.apache.log4j.varia.NullAppender. Then change the <root> and the <logger> entries to all reference the null appender. (A variation of this theme is to change all of the currently-defined appenders to used NullAppender.)
c) Change the levels or threshold levels of either the appenders or loggers to OFF.