Are you suggesting a close method on ILogger?  We use a static logger per class.  I don't want to have to close each logger separately.  I would like a master shutoff switch that will synchronously flush all appenders so I can call it before exiting my app.  The ILoggerFactory seems like the perfect spot for this.

On Wed, Sep 29, 2010 at 10:42 AM, Chris <shef31@yahoo.com> wrote:
I think the right solution is to add a logger.close() method to slf4j. Each implementation could handle it in its own way. For logback or log4j, it would just call stop() on each of the appenders that were attached to the logger.




On 9/29/2010 10:23 AM, Michael Schall wrote:
This requires me to have access to ch.qos.logback.classic
when writing code.  It does not allow me to switch loggers out without
changing code.

We are in the process of moving from log4j to logback.  One requirement
placed on me is to be able to revert back to log4j if something "goes
wrong".  I was hoping that using SLF4J would give me this ability.

I'm trying to achieve writing code only using SLF4J and...

if slf4j-log4j12-1.6.1.jar and log4j-1.2.15.jar are in my production
classpath, I'm logging using log4j.
If log4j-over-slf4j-1.6.1.jar (for third-party
logging), logback-classic-0.9.24.jar, and logback-core-0.9.24.jar are in
my production classpath, I'm logging using logback.

So without changing code, I can switch between logging back ends.

Should ILoggerFactory have a shutdown or stop method?  It could shutdown
whatever logging back end I'm using?

For log4j it would call
- org.apache.log4j.LogManager.getLoggerRepository().shutdown();
For logback it would call - loggerContext.stop()

Thoughts?
Mike

On Tue, Sep 28, 2010 at 4:02 PM, Robert Elliot <rob@lidalia.org.uk
<mailto:rob@lidalia.org.uk>> wrote:

   How about LoggerContext.stop()?  It looks as if it's designed
   specifically for this purpose.  It recursively stops and detaches
   all appenders, amongst other things.

   (You can cast the result of LoggerFactory.getILoggerFactory() to a
   LoggerContext).

   On 28 Sep 2010, at 21:53, Michael Schall wrote:

   Great question!  I asked this on stackoverflow a while back with no
   real answers...

   http://stackoverflow.com/questions/3678755/do-i-need-to-flush-events-when-shutting-down-using-logback

   On Tue, Sep 28, 2010 at 3:32 PM, Chris
   <shef31@yahoo.com
   <mailto:shef31@yahoo.com>> wrote:
   I'm using file appenders. At a certain point in my app, a little
   before
   shutdown, I have to close all loggers.

   How do I tell logback to call stop() on all appenders?

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