Thanks, Mike. Extremely helpful. I've never used caller for anything
but endeavors of curiosity. I've read that document before, but...
Here's what I quickly came up with:
sub get_logger {
...
# get the caller that we want.
@caller = caller(1);
$package = $caller[0];
@log_focus = split( '::', $package );
# If there's a category submitted to this sub, append it to
@log_focus
if ($category) {
push( @log_focus, $category )
}
$log_focus = join( '.', @log_focus );
$logger = Log::Log4perl::get_logger($log_focus);
return $logger;
}
Obviously, this is a much better way to do this. I guess a short
recursive subroutine which uses caller could tell you in which package a
function is defined. And that's how carp works, huh? Pretty cool.
Thank you very much.
-Eric
-----Original Message-----
From: Mike Schilli [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 28, 2007 8:45 PM
To: Berg, Eric
Cc: Mike Schilli; log4perl-devel@lists.sourceforge.net
Subject: RE: [log4perl-devel] When a missing config file
On Thu, 28 Jun 2007, Berg, Eric wrote:
> Are there any best practices, examples, etc. for the best way to
> provide a wrapper to log?
Here's a couple of hints:
http://log4perl.sourceforge.net/d/Log/Log4perl.html#6acb7
> I'm using some of the sample code that provides a _get_logger()
> function that derives the category based on the package from which
> it's called
Isn't that already provided by __PACKAGE__?
> , but I've created a problem for myself when it's in an inherited
> class in a subclass called in a subclass -- my wrapper is set up to
> provide _get_logger() as an inherited method -- because if I define a
> method in a superclass, and it's called in a subclass, then I can't
> just enable logging for the method in the superclass, because it's the
> package name of the subclass from which the category is derived.
Hmm, any reason why you aren't simply using Log4perl's get_logger()?
> So, to reiterate, I have a class hierarchy, and the top-level class is
> the one that does a
>
> use base qw(My::Logger);
>
> Then, when one of my subclasses calls _get_logger(), it creates a
> logger with the category of the subclass, whereas at least sometimes I
> want to enable logging for that inherited method whenever it's called.
Just to clarify: Is this your application or your logger class
hierarchy? If the former, it shouldn't be a subclass of Logger. If the
latter, you probably want to use L4p's get_logger() and pass it the
category you want.
> Another solution would be wildcard/regex categories. Can we do that?
What's the problem you're trying to solve there?
-- Mike
Mike Schilli
[EMAIL PROTECTED]
>
> Thanks!
>
> -Eric.
>
> -----Original Message-----
> From: Mike Schilli [mailto:[EMAIL PROTECTED]
> Sent: Thursday, June 28, 2007 7:54 PM
> To: Berg, Eric
> Cc: log4perl-devel@lists.sourceforge.net
> Subject: Re: [log4perl-devel] When a missing config file
>
> On Thu, 28 Jun 2007, Berg, Eric wrote:
>
> > I've been looking for a way to get l4p to tell me where the config
> > under which it's running comes from. Essentially, I'd like to have
> > a method that would return the full path to the config file that
> > it's currently using.
> >
> > Obviously, there are complications, such as those relating to
> > programatic configuration subsequent to loading configs from a file,
> > in-line, and config (ini) files, but I could find nowhere that the
> > file name passed in to init() is retrievable.
>
> The name of the file isn't stored usually, since you can not only use
> a file but a string, a hashref, an URL, etc. to initialize L4p.
>
> Since you're calling init() in the first place, wouldn't it be easier
> to store the filename in your application instead?
>
> -- Mike
>
> Mike Schilli
> [EMAIL PROTECTED]
>
> >
> > -Eric.
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of
> > John ORourke
> > Sent: Thursday, June 28, 2007 6:42 AM
> > To: Lee Goddard
> > Cc: log4perl-devel@lists.sourceforge.net
> > Subject: Re: [log4perl-devel] When a missing config file
> >
> > Try putting:
> >
> > use Error;
> >
> > in one of your modules/scripts - it will override the warn/die
> > handlers globally, so unless Log4perl overrides them again it will
> > give you a stack trace.
> >
> > cheers
> > John
> >
> > Lee Goddard wrote:
> > >
> > > Please could Log/Log4perl/Config.pm line 619 offer a stack
> > > backtrace
>
> > > as well as barfing?
> > >
> > > My current project has four config files, several potential
> > > initialisers (bad idea, I know) and reports only via e-mail, since
> > > it is part of a MTA process.
> > >
> > > Thanks in anticipation
> > >
> > > Lee
> > >
> > >
> > >
> > >
> > >
> > > # The Postfix program
> > >
> > > #
> > >
> > > # <[EMAIL PROTECTED]>: Command died with status
2:
> > > "perl
> > >
> > > # -I/home/lgoddard/trafficjam/trunk/lib
> > > -MTrafficJam::Controller::Root -e
> > >
> > > # 'warn TrafficJam::Controller::Root->mail_in'". Command
output:
> > > Cannot open
> > >
> > > # config file
'/home/lgoddard/trafficjam/trunk/config/mail.l4p'
> at
> > >
> > > # /usr/local/share/perl/5.8.4/Log/Log4perl/Config.pm line 619,
> > > <STDIN> line
> > >
> > > # 26.
> > >
> > > #
> > >
> > >
> > >
> > > Lee Goddard
> > >
> > > Senior Software Developer
> > >
> > > Advertising.com, London
> > >
> > >
> > >
> > > P Think of the environment before you print this email
> > >
> > >
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