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From Matt Sicker <boa...@gmail.com>
Subject Re: Hook into the RollingFileManager#write / Get notice about written bytes
Date Wed, 09 Mar 2016 18:07:37 GMT
Could be something neat to implement in JMX if it's monitoring he wants.

On 9 March 2016 at 11:51, Paul Benedict <pbenedict@apache.org> wrote:

> Maybe... I think the user is not looking for a call back, per se, but that
> was his initial solution for finding out statistics. Perhaps what he really
> wants is a way to examine the throughput of log4j?
>
> Cheers,
> Paul
>
> On Wed, Mar 9, 2016 at 11:46 AM, Gary Gregory <garydgregory@gmail.com>
> wrote:
>
> > Maybe we need some (async?) notification where a call site could
> registered
> > a listener of some kind...
> >
> > Gary
> >
> > On Wed, Mar 9, 2016 at 9:37 AM, Matt Sicker <boards@gmail.com> wrote:
> >
> > > Appenders are usually final because the appender itself doesn't do much
> > > work (the managers do that), or at least that's what I gather.
> > >
> > > On 16 February 2016 at 10:31, <christian@myvm.de> wrote:
> > >
> > > > Hi all,
> > > >
> > > > this is the first time I'm writing to a mailing list - I hope I will
> do
> > > > it the right way :)
> > > >
> > > >
> > > > I migrated a few days ago from Log4J 1.2 to Log4J 2: In general I
> must
> > > > say: nice work guys and nice plugin system!
> > > >
> > > > But: I'm struggling with finding a way to get notice about the exact
> > > > size of written bytes. I want to find a way how to do some stuff
> when X
> > > > bytes were written in Y seconds. I couldn't use a filter and check
> the
> > > > LogEvent because it's not possible to get the actual size of written
> > > > bytes afterwards (because the layout will transform this...)
> > > >
> > > > I'm using a RollingFileAppender and could see, that this is using the
> > > > RollingFileManager and the perfect way would be to hook into this
> > > > write(byte[]) method.. but I can't find how to do this.
> > > >
> > > > In general I would create a subclass and overwrite write(byte[])..
> but
> > > > this is impossible because everything there is final. All appenders,
> > all
> > > > appender managers, all layouts, ... and I think it's not the way it
> > > > should be when I create a new "MyRollingFileAppender" and copy all
> the
> > > > stuff and add the part I need to the write method.
> > > >
> > > >
> > > > So is there anybody who could maybe help and know a solution for this
> > > > problem? And is there a specific reason that everything is final? :(
> > > >
> > > >
> > > >
> > > > Thank you in advance and best regards,
> > > >
> > > > Christian
> > > >
> > > > ---------------------------------------------------------------------
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> > > >
> > > >
> > >
> > >
> > > --
> > > Matt Sicker <boards@gmail.com>
> > >
> >
> >
> >
> > --
> > E-Mail: garydgregory@gmail.com | ggregory@apache.org
> > Java Persistence with Hibernate, Second Edition
> > <http://www.manning.com/bauer3/>
> > JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
> > Spring Batch in Action <http://www.manning.com/templier/>
> > Blog: http://garygregory.wordpress.com
> > Home: http://garygregory.com/
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> >
>



-- 
Matt Sicker <boards@gmail.com>

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