Re: [logback-user] Problems with jaino evaluator

22 Jun 2012

      This doesn't work.  I have changed the code, but I get every entry from the logger in the ALARM.LOG file.

Here is what I now have in logback.xml

    <appender name="ALARM" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <evaluator class="ch.qos.logback.core.filter.EvaluatorFilter">
            <expression>
                if (mdc == null || mdc.get("SEND_ALARM") == null)
                return false;

                return true;
            </expression>
        </evaluator>
        <file>logs/alarms.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!-- daily rollover -->
            <fileNamePattern>logs/archive/logFile.%d{yyyy-MM-dd}.log</fileNamePattern>

            <!-- keep 30 days' worth of history -->
            <maxHistory>30</maxHistory>
        </rollingPolicy>

        <encoder>
            <pattern>%date{MMM dd, yyyy hh:mm:ss} %-5level %msg%n</pattern>
        </encoder>
    </appender>

-----Original Message-----
From: logback-user-bounces@qos.ch [mailto:logback-user-bounces@qos.ch] On Behalf Of ceki
Sent: Friday, June 22, 2012 2:54 PM
To: logback users list
Subject: Re: [logback-user] Problems with jaino evaluator

Hi George,

 From what could gather, you want to set an evaluaor[1] not a filter.
You should remove have the enclosing filter element as shown below:

<appender name="ALARM"
           class="ch.qos.logback.core.rolling.RollingFileAppender">

   <evaluator class="ch.qos.logback.classic.boolex.JaninoEventEvaluator">
    ..
   </evaluator>
</appender>

HTH,

[1] http://logback.qos.ch/manual/appenders.html#smtpAppender_Evaluator

On 20.06.2012 19:34, George, Kenneth V [NTK] wrote:
...
Good afternoon.
I have a situation where I need to log information to 2 separate
files, but under different conditions, for the same context/class files.
Basically, I have 2 files: 1 log, 1 alarm_log.
I need to set the level for reporting to INFO, but only log WARN/ERROR
messages to alarm_log when a MDC value of "SEND_ALARM" is set.  I have
tried to place a <filter> of type
"ch.qos.logback.core.filter.EvaluatorFilter" and cannot seem to get it
to work, messages of Level INFO show-up in the alarm_log.
Can this even be done (maybe I am just using it wrong)?  Here is the
section of my logback.xml file specifying the appender:
<appender name="ALARM"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<filter class="ch.qos.logback.core.filter.EvaluatorFilter">
<evaluator>
<expression>
if (mdc == null || mdc.get("SEND_ALARM") == null)
return false;
return true;
</expression>
</evaluator>
</filter>
<file>logs/alarms.log</file>
<rollingPolicy
class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- daily rollover -->
<fileNamePattern>logs/archive/logFile.%d{yyyy-MM-dd}.log</fileNamePatt
ern>
<!-- keep 30 days' worth of history -->
<maxHistory>30</maxHistory>
</rollingPolicy>
<encoder>
<pattern>%date{MMM dd, yyyy hh:mm:ss} %-5level
%msg%n</pattern>
</encoder>
</appender>
Thanks.
--
Ceki
http://twitter.com/#!/ceki

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