24 Sep
2014
24 Sep
'14
6:04 p.m.
On 24 Sep 2014 at 17:09:51, vincent(a)massol.net
(vincent@massol.net(mailto:vincent@massol.net)) wrote:
On 24 Sep 2014 at 16:32:53, Denis Gervalle (dgl@softec.lu(mailto:dgl@softec.lu)) wrote:
Ok it may work with Markers but it would work only with Logback. We would have to
configure our logback.xml with something like this:
http://logback.qos.ch/manual/appenders.html#OnMarkerEvaluator
Actually I’m not even sure we can do what we want with this since in all the examples I’ve
found you could decide to use a specific appender which is not our use case: we want the
same appender but change the log level according to a marker. I think this can be achieved
with Filter but that’s not in the SLF4J API AFAIK.
Not sure it’s worth tying us to Logback just for this.
OTOH having named loggers is something well understood and supported by all logging
systems so I’d go for this.
Thanks
-Vincent
Hi Vincent,
I do not think this is the right way to fix your problem.
Basically what you need is some transversal way to filter events.
I have never used them, but if IIRC, SL4J implements Markers, which allows
to mark some logging, and Logback should support filterinb on Markers.
Could you check that solution, it could a better fit for your need IMO.
Good idea, I’ll check. Thanks
-Vincent
On Wed, Sep 24, 2014 at 2:06 PM,
vincent(a)massol.net
wrote:
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devs(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/devs Hi Devs,
I’d like to add some logging to debug what happens when XWiki shuts down.
One solution would be to just use the standard class loggers with
LOGGER.debug(…).
However this means activating debug logging for everything and thus you
cannot just focus on the shutdown part.
WDYT about adding 2 new loggers "org.xwiki.initialization" and
“org.xwiki.shutdown”?
Example usage:
/**
* Logger to use to log shutdown information.
*/
private static final Logger SHUTDOWN_LOGGER =
LoggerFactory.getLogger("org.xwiki.shutdown");
...
SHUTDOWN_LOGGER.debug("Stopping component [{}]...",
instance.getClass().getName());
...
SHUTDOWN_LOGGER.debug("Component [{}] has been stopped",
instance.getClass().getName());
Then it becomes easy to set, in logback.xml:
A small variation would be to use SHUTDOWN_LOGGER.info() and in
logback.xml, by default to have:
Note that this would be the first time we use non-class loggers which is
why I’m asking for your go-ahead.
Thanks
-Vincent
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--
Denis Gervalle
SOFTEC sa - CEO
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