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

use strict;
use warnings;
use fields;
use Log::Log4perl;
my $log;
my $module_name;

sub new { # initialize and return MyLogger object
  my MyLogger $self = shift;
  unless (ref $self) { $self = fields::new ($self); }

  $module_name = shift;

  if (!Log::Log4perl::initialized()) {
    Log::Log4perl->init("/opt/etc/log4perl.conf");
    $Log::Log4perl::caller_depth = 1;
  } 
  $log = Log::Log4perl->get_logger($module_name);
  return $self;
}
sub debug{ # log a single message
  my ($self, $logmsg) = @_;
  $log->debug($logmsg);
}
...