Sure, here is my config:
<!-- The SMTP appender -->
<appender name="smtp_viol" class="org.apache.log4j.net.SMTPAppender">
<param name="EvaluatorClass"
value="com.arrow.logging.CountingTriggeringEventEvaluator"/>
<param name="BufferSize" value="25"/>
<param name="From" value="[EMAIL PROTECTED]"/>
<param name="To" value="[EMAIL PROTECTED]"/>
<param name="Subject" value="Converter Mapping Error"/>
<param name="SMTPHost" value="@SMTPHost@"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d [%t][%p] - %m%n"/>
</layout>
</appender>
Then the class:
package com.arrow.logging;
import org.apache.log4j.spi.LoggingEvent;
import org.apache.log4j.spi.TriggeringEventEvaluator;
public class CountingTriggeringEventEvaluator implements
TriggeringEventEvaluator
{
private static final int MAX_COUNTER = 25;
private int counter = 0;
public boolean isTriggeringEvent(LoggingEvent parm1)
{
return ((++counter % MAX_COUNTER) == 0);
}
}
Your problem is probably a classpath issue.
-----Original Message-----
From: James Noble [mailto:[EMAIL PROTECTED]
Sent: Wednesday, January 21, 2004 10:44
To: Log4J Users List
Subject: SMTPAppender EvaluatorClass Option
Has anyone successfully used the SMTPAppender EvaluatorClass option? When I
try to use my own evaluator class I get these error messages:
log4j:ERROR Could not instantiate class [my.package.TriggerOnWarn].
java.lang.ClassNotFoundException: my.package.TriggerOnWarn
[stack trace...]
TriggerOnWarn is implemented as follows:
package my.package;
import org.apache.log4j.Level;
import org.apache.log4j.spi.LoggingEvent;
import org.apache.log4j.spi.TriggeringEventEvaluator;
public class TriggerOnWarn implements TriggeringEventEvaluator {
public boolean isTriggeringEvent( LoggingEvent event ) {
return event.getLevel().isGreaterOrEqual( Level.WARN );
}
}
Besides implementing the TriggeringEventEvaluator interface, does the
evaluator class have to be a subclass of a particular class or in the
org.apache.log4j package?
Thanks!
Jim
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