Hi Xavier,
Many thanks for your compliment. Would you care to create a bug report
asking for an enhancement of the documentation as you describe in your
email? You can do so under the logback-site/documentation heading [1].
The logback-demo [2] gives an example of how you could use markers.
In a nut shell, you mark logging request with a marker and those marked
request can be filtered accordingly. For example, assume you marked a
request as "TRACE" as shown below:
package ch.qos.logback.demo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.Marker;
import org.slf4j.MarkerFactory;
public class MarkerExample {
static Marker TRACE_MARKER = MarkerFactory.getMarker("TRACE");
Logger logger = LoggerFactory.getLogger(MarkerExample .class);
public void aMethod() {
logger.info(TRACE_MARKER, "Hello world");
}
}
You can then instruct a turbo filter to drop requests marked with "TRACE"
as follows:
<turboFilter class="ch.qos.logback.classic.turbo.MarkerFilter">
<Name>TRACE</Name>
<Marker>TRACE</Marker>
<OnMatch>DENY</OnMatch>
</turboFilter>
Does the above help?
[1] http://bugzilla.qos.ch/enter_bug.cgi?product=logback-site
[2] http://logback.qos.ch/demo.html
At 10:05 AM 2/3/2007, Xavier Hanin wrote:
Hi All,
I'm new to logback, I've read a good part of the documentation, and first
I should said that I'm impressed by the quality of the documentation and
the feature rich logging system you provide.
Two things:
Question: I have trouble to understand what is a Marker and what is the
use case behind them. Could you give me some insight?
Remark: While reading the documentation I had the feeling that MDC was
introduced too late. Indeed, you reference MDC the first time in chapter 2
(as far as I can say), without giving even an hint on what it is. Several
other chapters reference this concept, but it's only in chapter 7 that I
understood what it is. Maybe adding a short introduction to this concept
(and the concept of Marker) in chapter 2 would help the reader?
Thanks for your great work!
Xavier
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--
Ceki Gülcü
Logback: The reliable, generic, fast and flexible logging framework for Java.
http://logback.qos.ch
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