It looks like you are trying to setup an instance of Log::Log4perl up as a singleton (you are using my $log in the global scope of the module). Why bother with this when Log4perl already does this for you?

I would probably forgo the creation of an object, and just provide a class function in your module that gets a Log4perl object and initializes it first if it isn't already initialized. Something like this:

package MyLogger; # Wrapper class for Log::Log4perl.

use strict;
use warnings;
use Log::Log4perl;

sub get_logger { # initialize and return MyLogger object
  my $class = shift;
  my $module_name = shift;

  unless (Log::Log4perl->initialized) {
    Log::Log4perl->init("/opt/etc/log4perl.conf");
    $Log::Log4perl::caller_depth = 1;
  }
  return Log::Log4perl->get_logger($module_name);
}
[download]

Then in your code you get to use the actual Log::Log4perl object and you won't have to write helper functions like 'debug' and such. It is still efficient, since Log::Log4perl is a singleton. Here is how you could use it:

my $log = MyLogger->get_logger('database');
$log->debug('database blah blah');

$log = MyLogger->get_logger('apache');
$log->debug('apache blah blah');
[download]

The above code is untested, but it should work...

-Cees