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=head1 NAME
Log::Handler::Output::Screen - Log messages to the screen.
=head1 SYNOPSIS
use Log::Handler::Output::Screen;
my $screen = Log::Handler::Output::Screen->new(
log_to => 'STDERR',
dump => 1,
);
$screen->log($message);
=head1 DESCRIPTION
This output module makes it possible to log messages to your screen.
=head1 METHODS
=head2 new()
Call C<new()> to create a new Log::Handler::Output::Screen object.
The following options are possible:
=over 4
=item B<log_to>
Where do you want to log? Possible is: STDOUT and STDERR.
The default is STDOUT.
=item B<dump>
Set this option to 1 if you want that the message will be dumped with
C<Data::Dumper> to the screen.
=back
=head2 log()
Call C<log()> if you want to log a message to the screen.
Example:
$screen->log('this message goes to the screen');
=head2 errstr()
This function returns the last error message.
=head1 PREREQUISITES
Data::Dumper
Params::Validate
=head1 EXPORTS
No exports.
=head1 REPORT BUGS
Please report all bugs to <jschulz.cpan(at)bloonix.de>.
If you send me a mail then add Log::Handler into the subject.
=head1 AUTHOR
Jonny Schulz <jschulz.cpan(at)bloonix.de>.
=head1 COPYRIGHT
Copyright (C) 2007 by Jonny Schulz. All rights reserved.
This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
=cut
package Log::Handler::Output::Screen;
use strict;
use warnings;
use Data::Dumper;
use Params::Validate;
our $VERSION = '0.02';
our $ERRSTR = '';
sub new {
my $class = shift;
my $options = $class->_validate(@_);
return bless $options, $class;
}
sub log {
my $self = shift;
my $message = @_ > 1 ? {@_} : shift;
local $|=1;
if ($self->{dump}) {
$message->{message} = Dumper($message);
}
if ($self->{log_to} eq 'STDOUT') {
print STDOUT $message->{message}
or return $self->_raise_error($!);
} else {
print STDERR $message->{message}
or return $self->_raise_error($!);
}
return 1;
}
sub errstr { $ERRSTR }
#
# private stuff
#
sub _validate {
my $class = shift;
my %options = Params::Validate::validate(@_, {
log_to => {
type => Params::Validate::SCALAR,
regex => qr/^STD(?:ERR|OUT)\z/,
default => 'STDOUT',
},
dump => {
type => Params::Validate::SCALAR,
regex => qr/^[01]\z/,
default => 0,
},
});
return \%options;
}
1;
|
