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- package Log::Dispatch::Screen;
-
- use strict;
-
- use Log::Dispatch::Output;
-
- use base qw( Log::Dispatch::Output );
-
- use Params::Validate qw(validate BOOLEAN);
- Params::Validate::validation_options( allow_extra => 1 );
-
- use vars qw[ $VERSION ];
-
- $VERSION = sprintf "%d.%02d", q$Revision: 1.17 $ =~ /: (\d+)\.(\d+)/;
-
- 1;
-
- sub new
- {
- my $proto = shift;
- my $class = ref $proto || $proto;
-
- my %p = validate( @_, { stderr => { type => BOOLEAN,
- default => 1 },
- } );
-
- my $self = bless {}, $class;
-
- $self->_basic_init(%p);
- $self->{stderr} = exists $p{stderr} ? $p{stderr} : 1;
-
- return $self;
- }
-
- sub log_message
- {
- my $self = shift;
- my %p = @_;
-
- if ($self->{stderr})
- {
- print STDERR $p{message};
- }
- else
- {
- print STDOUT $p{message};
- }
- }
-
- __END__
-
- =head1 NAME
-
- Log::Dispatch::Screen - Object for logging to the screen
-
- =head1 SYNOPSIS
-
- use Log::Dispatch::Screen;
-
- my $screen = Log::Dispatch::Screen->new( name => 'screen',
- min_level => 'debug',
- stderr => 1 );
-
- $screen->log( level => 'alert', message => "I'm searching the city for sci-fi wasabi\n" );
-
- =head1 DESCRIPTION
-
- This module provides an object for logging to the screen (really
- STDOUT or STDERR).
-
- =head1 METHODS
-
- =over 4
-
- =item * new(%p)
-
- This method takes a hash of parameters. The following options are
- valid:
-
- =over 8
-
- =item * name ($)
-
- The name of the object (not the filename!). Required.
-
- =item * min_level ($)
-
- The minimum logging level this object will accept. See the
- Log::Dispatch documentation for more information. Required.
-
- =item * max_level ($)
-
- The maximum logging level this obejct will accept. See the
- Log::Dispatch documentation for more information. This is not
- required. By default the maximum is the highest possible level (which
- means functionally that the object has no maximum).
-
- =item * stderr (0 or 1)
-
- Indicates whether or not logging information should go to STDERR. If
- false, logging information is printed to STDOUT instead. This
- defaults to true.
-
- =item * callbacks( \& or [ \&, \&, ... ] )
-
- This parameter may be a single subroutine reference or an array
- reference of subroutine references. These callbacks will be called in
- the order they are given and passed a hash containing the following keys:
-
- ( message => $log_message, level => $log_level )
-
- The callbacks are expected to modify the message and then return a
- single scalar containing that modified message. These callbacks will
- be called when either the C<log> or C<log_to> methods are called and
- will only be applied to a given message once.
-
- =back
-
- =item * log_message( message => $ )
-
- Sends a message to the appropriate output. Generally this shouldn't
- be called directly but should be called through the C<log()> method
- (in Log::Dispatch::Output).
-
- =back
-
- =head1 AUTHOR
-
- Dave Rolsky, <autarch@urth.org>
-
- =cut
-