[logback-user] Externalized Logback configuration for web applications

[Richard Sand]

Hi Ceki - I guess I was looking for another mechanism than JNDI to expose
those, simply to avoid needing the extra context listeners and servlet
filter needed for performance.

Is there some magic we could do when logging is initialized to see if it's
being loaded by a servlet classloader and finding the base servlet and
grabbing the servletcontext? Or am I grasping at straws here?

Thanks!

Richard Sand | Managing Director
PO Box 91824 | Austin | Texas 78709-1824 | USA
Office: +1 888 612 8820 ext 02 | Fax: +1 866 304 3754
Mobile: +1 267 984 3651



-----Original Message-----
From: logback-user-bounces at qos.ch [mailto:logback-user-bounces at qos.ch] On
Behalf Of ceki
Sent: Friday, February 01, 2013 1:12 PM
To: logback users list
Subject: Re: [logback-user] Externalized Logback configuration for web
applications


Sure. Values for variables can be fetched from JNDI. See [1]. Values
defined in <context-param> inside the web.xml are available via JNDI. As
far as I know, all web containers export values defined in <context-param>
inside the web.xml via JNDI.

Please try the method outlined in [1] and kindly report back on this
mailing list.

[1] http://logback.qos.ch/manual/configuration.html#insertFromJNDI


On 31.01.2013 20:40, Richard Sand wrote:
> Is it possible to grab the value of the filename from the context of
> the web application itself, e.g. a <context-param> inside the web.xml?
> Idea here is that this can be overridden by a context.xml at
> deployment time, to externalize the filename without disturbing the
> web application archive, and without needing JNDI.
>
> e.g. so:
>
> <include file="/opt/logback-A.xml">
>
> becomes:
>
> <include file="${some-value-from-deployment-descriptor}">
>
> Thanks!
>
> Best regards,
>
> Richard
>


--
Ceki
65% of statistics are made up on the spot
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