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RE: [equinox-dev] Access to Equinox Logging
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Hi,
yes, this solution does not address the problem to get hold of the messages written by the Equinox OSGi Runtime. But we have never experienced the occurence of messages from the Equinox Runtime. So this problem not really matters for our application. Sorry.
I took a short look into the FrameworkLog interface and its implementations and I would suggest to provide a new implementation for this interface. Regardless of the comments in the source code. In this implementation you can redirect all messages to the JUL-Logger for example and then catch these messages with the Logback Framework redirecting it to the place/file of your choice.
Florian pepping
-----Original Message-----
From: equinox-dev-bounces@xxxxxxxxxxx [mailto:equinox-dev-bounces@xxxxxxxxxxx] On Behalf Of Marwinski, Dirk
Sent: Thursday, May 07, 2009 1:47 PM
To: Equinox development mailing list
Subject: RE: [equinox-dev] Access to Equinox Logging
Hi,
thanks a lot for pointing this out! This link is actually very
useful for us as it addresses our primary use case (integrating
several logging frameworks). It however does not address on how
to get hold of the messages written by the Equinox OSGi Runtime
itself (sorry if that wasn't clear from my posting below).
Thanks and best regards,
Dirk
-----Original Message-----
From: equinox-dev-bounces@xxxxxxxxxxx [mailto:equinox-dev-bounces@xxxxxxxxxxx] On Behalf Of Pepping, Florian
Sent: Donnerstag, 7. Mai 2009 10:29
To: Equinox development mailing list
Subject: RE: [equinox-dev] Access to Equinox Logging
Hi,
we had a similar problem in our (OSGi-)application. We finally found a solution using the Logback-Framework.
The integration and use with osgi/equinox-based applications is described by ekkedard gentz.
http://web.mac.com/ekkehard.gentz/ekkes-corner/blog/Eintr%C3%A4ge/2008/9/24_Logging_in_OSGI_Enterprise_Anwendungen,_Teil_1.html
This solution is quite flexible and we have been successfully solved our logging problems and requirements with this approach.
Florian Pepping
-----Original Message-----
From: equinox-dev-bounces@xxxxxxxxxxx [mailto:equinox-dev-bounces@xxxxxxxxxxx] On Behalf Of Marwinski, Dirk
Sent: Thursday, May 07, 2009 10:01 AM
To: equinox-dev@xxxxxxxxxxx
Subject: [equinox-dev] Access to Equinox Logging
Hi,
we are building an application based on equinox which contains various
components from various sources using different logging technologies (log4j,
commons logging, proprietary, ...). We are now trying to get everything into
one single place (e.g. a single file in a special format which can be
processed by existing tools in our landscape).
I am a bit puzzled on how I could intercept logs written by equinox in
order to re-direct them into another logging framework. During my research
I found postings of people with similar problems (unfortunately there was no
solution). I hope I am not overlooking something trivial here:
I have seen that Equinox uses the FrameworkLog interface for logging (using
the EclipseLog implementation). I can set a new Writer
(FrameworkLok.setWriter()) there and "steal" the log messages, however they
come in multiple pieces which is not ideal.
As an alternative I could write a new implementation of the FrameworkLog
interface and register it in the service registry, however this is
discouraged (@noimplement annotation), so I didn't try that.
The next possibility would be to extend the EclipseLogHook in order to
provide a new implementation for the FrameworkLog interface, however there
still is the @noimplement annotation... There is btw duplicate code in the
EclipseStarter and EclipseLogHook classes (method createFrameworkLog()).
Do you have any suggestion on how to get access to the log entries? Getting
the messages from the Writer is a possibility but not ideal, better would
be getting access to the FrameworkLogEntry objects which does not seem to
be possible at the moment. Implementing an AdapterHook would be a possibility
but I am hesitant to go that way if I don't really have to.
If there is anything that I can contribute let me know.
Thanks,
Dirk
Dirk Marwinski
SAP AG
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