log4perl-devel

[log4perl-devel] Categories - doc/implementation problem ??

[David P. <dav...@te...>]

Hi ,

I'm sure I can't be the only one to have tried the my $logger = Log::Log4perl->new($class); way of dynamically creating a category as suggested here (http://search.cpan.org/~mschilli/Log-Log4perl-1.39/lib/Log/Log4perl.pm#Categories) but end up with a 'THIS CLASS ISN'T FOR DIRECT USE. PLEASE CHECK...' error.

I only tried this because, having created a root logger with category Foo::Bar, all get_logger($class) calls (where $class is in Foo::Bar or a subclass thereof) return an Log::Log4perl::Logger object whereas I expected, but could not get, a Foo::Bar or Foo::Bar::Logger object. Using category within the configuration isn't an option because, on a per-package basis, the composition of the categories is not determined 'til run-time and may change even then.

Rgds ,

--
D.C. Pointon FIAP MBCS | Now I saw, tho' too late, the folly of
07810 645299           | beginning a work before we count the cost
01730 233886           | and before we judge rightly of our strength
                       | to go thro' with  it. Robinson Crusoe

Re: [log4perl-devel] Categories - doc/implementation problem ??

[Mike S. <m...@pe...>]

On Fri, 23 Nov 2012, David Pointon wrote:

> I'm sure I can't be the only one to have tried the my $logger
> = Log::Log4perl->new($class); way of dynamically creating a category

Hi David,

sorry, that part in the docs dates back to 2002 and it's a typo, it
should be Log::Log4perl->get_logger($class) instead. Fixed it:

     https://github.com/mschilli/log4perl/commit/2ba79b11eda280845559fb6df93b0a0375a42043


> I only tried this because, having created a root logger with
> category Foo::Bar, all get_logger($class) calls (where $class is
> in Foo::Bar or a subclass thereof) return an Log::Log4perl::Logger
> object whereas I expected, but could not get, a Foo::Bar or
> Foo::Bar::Logger object.

Hmm, I didn't quite get what you meant there, can you elaborate on what 
you're trying to accomplish?

-- 
-- Mike

Mike Schilli
m...@pe...

>
> Rgds ,
>
> --
> D.C. Pointon FIAP MBCS | Now I saw, tho' too late, the folly of
> 07810 645299           | beginning a work before we count the cost
> 01730 233886           | and before we judge rightly of our strength
>                       | to go thro' with  it. Robinson Crusoe
>
>
>
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>Using category within the configuration
> isn't an option because, on a per-package basis, the composition
> of the categories is not determined 'til run-time and may change
> even then.