I want a new log file to be created every time an application starts. I
translate this wish into "roll the log upon the first log statement
emitted by the application after it starts".
It seemed pretty trivial to implement this but I can't get it to work.
1. I created a policy:
==============================================================================
package com.whatever.logging;
import java.io.File;
import ch.qos.logback.core.rolling.TriggeringPolicyBase;
/**
* This policy causes a log to be rolled over with the first log statement
* of every program run.
*/
public class LogPerRunTriggeringPolicy<E> extends TriggeringPolicyBase<E> {
private static boolean rollMeOver = true;
/* (non-Javadoc)
* @see
ch.qos.logback.core.rolling.TriggeringPolicy#isTriggeringEvent(java.io.File,
java.lang.Object)
*/
@Override
public boolean isTriggeringEvent(File activeFile, E event) {
boolean rollStatus = rollMeOver;
if (rollMeOver) {
System.out.println("rollover will be triggered");
rollMeOver = false;
}
return rollStatus;
}
}
=================================================================================
and an appender using that policy:
<appender name="Conversation"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<File>${logdir}/conversation.log</File>
<rollingPolicy
class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<fileNamePattern>conversation.%i.log</fileNamePattern>
<minIndex>1</minIndex>
<maxIndex>6</maxIndex>
</rollingPolicy>
<triggeringPolicy
class="com.whatever.logging.LogPerRunTriggeringPolicy" />
<encoder>
<pattern>%d [%t] %-5p %c{2} - %m%n</pattern>
</encoder>
</appender>
=================================================================================
But the log never rolls. What am I doing wrong?
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