> [Steve]
> > I think your previous example showed that subject-level
> > filtering required a separate logger/channel per subject.
[snip]
>
> > The point here is that subjects can (and often are) as
> > fine-grained as individual methods of a class. Sometimes
> > they are even more fine-grained when dealing with fairly
> > complex algorithms, although this is rare.
> >
> > When I need fine-grained subjects management, I don't want
> > to have many logger/channel instances. I want to have one
> > channel with a subject attached to each loggable Event.
>
> Then you can do...
>
> logger = logging.getLogger("") #root logger
>
> logger.log(logging.INFO, "subject 1", ...)
> logger.log(logging.WARN, "subject 2", ...)
>
> etc.
>
> A filter can process these events:
>
> class SubjectFilter(Filter):
> def filter(self, record):
> if record.msg == "subject 1":
> ...
> elif record.msg == "subject 2":
> ...
>
> My example's a bit crude, but you get the picture.
Yes, very clearly. This is far too cumbersome for fine-grained
control of subjects.
An individual logger/channel per subject is too difficult
to use for large or complex applications.
[snip]
> > The constructor for a loggable Event would accept an
> > Exception as an argument and create a new loggable Event
> > from the Exception's attributes.
>
> This is not exactly how it happens, but the effect is
> analogous. Currently,
> the LogRecord constructor is not exposed to users (since it
> was meant as an
> internal class); this may change in the future.
Excellent. Exposing the LogRecord (maybe renamed to a
LogEvent in v2.x) is a very nice solution, permitting flexible
creation of LogEvent instances from Exceptions.
This also allows adding Subject information to the LogEvent,
and doing proper fine-grained subject filtering without
creating innumerable channels.
[snip]
=====
--
S. Lott, CCP :-{)
S_LOTT@YAHOO.COM
http://www.mindspring.com/~slott1
Buccaneer #468: KaDiMa
Macintosh user: drinking upstream from the herd.
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