[logback-user] Evaluator and Layout Pattern

[ekkehard]

Ceki,

just tried my custom MarkerConverter

but I got an error:

ERROR in ch.qos.logback.core.pattern.parser.Compiler at 26312 - 
[bundlemarker] is not a valid conversion word

---------
from my config file:

...
  <conversionRule conversionWord="bundlemarker"
      converterClass="org.ekkehard.logback.util.BundleMarkerConverter"/>
...

  <appender name="STDOUT"
    class="ch.qos.logback.core.ConsoleAppender">
    <layout class="ch.qos.logback.classic.PatternLayout">
      <Pattern>%d{HH:mm:ss.SSS} %-5level [%logger{40}] %bundlemarker 
%msg%n</Pattern>
    </layout>
  </appender>

-----
perhaps the problem is that my BundleMarkerConverter class was not found -
all runs under OSGI

what do you think - should I add the import to logback core or logback 
classic ?
or could something else be wrong because the error notes that the 
conversion word wasn't valid
and not that class BundleMarkerConverter wasn't found

thanks

ekke

ekkehard schrieb:
> Ceki Gulcu schrieb:
>   
>> Hi Ekke,
>>
>> Here is the code for MarkerConverter:
>>
>> ======= Start MarkerConverter.hava ========
>> package ch.qos.logback.classic.pattern;
>>
>> import org.slf4j.Marker;
>>
>> import ch.qos.logback.classic.spi.LoggingEvent;
>>
>> /**
>>   * Return the event's marker value(s).
>>   *
>>   * @author S&eacute;bastien Pennec
>>   */
>> public class MarkerConverter extends ClassicConverter {
>>
>>    private static String EMPTY = "";
>>
>>    public String convert(LoggingEvent le) {
>>      Marker marker = le.getMarker();
>>      if (marker == null) {
>>        return EMPTY;
>>      } else {
>>        return marker.toString();
>>      }
>>    }
>> }
>> ======= End   MarkerConverter.hava ========
>>
>> Studying the code above, I would say that you have two options. First,
>> just remove the [] from the conversion pattern. So instead of writing
>>
>> "%d %level [%marker] - %msg%n"
>>
>> as you conversion pattern, just write
>>
>> "%d %level %marker - %msg%n"
>>
>> You second option is to write your own converter for handling
>> markers. You could modify it to return an empty string if there is no
>> marker, and to return "["+marker.toString()+"]" if there is a marker
>> in the event. Here is sample code:
>>
>> package de.gentz-software.logback;
>>
>> import org.slf4j.Marker;
>> import ch.qos.logback.classic.spi.LoggingEvent;
>>
>> public class MyMarkerConverter extends ClassicConverter {
>>
>>    private static String EMPTY = "";
>>
>>    public String convert(LoggingEvent le) {
>>      Marker marker = le.getMarker();
>>      if (marker == null) {
>>        return EMPTY;
>>      } else {
>>        return "["+marker.toString()+"]";
>>      }
>>    }
>> }
>>
>>
>> You also need to let logback know about your conversion word. Here is
>> how:
>>
>>    <conversionRule conversionWord="myMarker"
>>             converterClass="de.gentz-software.logback.MyMarkerConverter"/>
>>
>> Here is a sample config file:
>>
>> <configuration>
>>    <conversionRule conversionWord="myMarker"
>>            converterClass="de.gentz-software.logback.MyMarkerConverter" />
>> 	
>>    <appender name="STDOUT"
>>      class="ch.qos.logback.core.ConsoleAppender">
>>      <layout class="ch.qos.logback.classic.PatternLayout">
>>        <Pattern>%-4relative [%thread] %myMarker - %msg%n</Pattern>
>>      </layout>
>>    </appender>
>>
>>    <root>
>>      <level value="debug" />
>>      <appender-ref ref="STDOUT" />
>>    </root>
>> </configuration>
>>
>>
>> I hope this helps,
>>
>>   
>>     
>
> of course - thanks :-)
>
> ...gives me some more ideas how to solve it best to print OSGI 
> bundle-name and service-name
> I put into the Marker-tree
>
> ekke
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>   



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