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diff --git a/lib/Nagios/Plugin/Threshold.pm b/lib/Nagios/Plugin/Threshold.pm
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+package Nagios::Plugin::Threshold;
+
+use 5.008004;
+
+use strict;
+use warnings;
+
+use Nagios::Plugin::Range;
+use Nagios::Plugin::Base;
+
+use Class::Struct;
+struct "Nagios::Plugin::Threshold" => {
+        warning => 'Nagios::Plugin::Range',
+        critical => 'Nagios::Plugin::Range',
+        };
+
+sub set_thresholds {
+        my ($class, %args) = @_;
+        my $t = $class->new;
+        if (defined $args{warning}) {
+                my $r = Nagios::Plugin::Range->parse_range_string($args{warning});
+                if (defined $r) {
+                        $t->warning($r);
+                } else {
+                        Nagios::Plugin::Base->die( {
+                                return_code => $ERRORS{UNKNOWN}, 
+                                message => "Warning range incorrect: '$args{warning}'"
+                                } );
+                }
+        }
+        if (defined $args{critical}) {
+                my $r = Nagios::Plugin::Range->parse_range_string($args{critical});
+                if (defined $r) {
+                        $t->critical($r);
+                } else {
+                        Nagios::Plugin::Base->die( {
+                                return_code => $ERRORS{UNKNOWN}, 
+                                message => "Critical range incorrect: '$args{critical}'"
+                                } );
+                }
+        }
+        return $t;
+}
+
+sub get_status {
+        my ($self, $value) = @_;
+        if ($self->critical) {
+                if ($self->critical->check_range($value) == 1) {
+                        return $ERRORS{CRITICAL};
+                }
+        }
+        if ($self->warning) {
+                if ($self->warning->check_range($value) == 1) {
+                        return $ERRORS{WARNING};
+                }
+        }
+}
+                
+1;
+__END__
+
+=head1 NAME
+
+Nagios::Plugin::Threshold - Threshold information in a perl object
+
+=head1 DESCRIPTION
+
+Handles common Nagios Plugin threshold data. See Nagios::Plugin or Nagios::Plugin::Performance for 
+creation of this object.
+
+=head1 OBJECT METHODS
+
+=over 4
+
+=item warning, critical
+
+Returns the warning or critical range as a Nagios::Plugin::Range object.
+
+=item get_status($value)
+
+Given a value, will see if the value breeches the critical or the warning range. Returns the status code.
+
+=head1 AUTHOR
+
+Ton Voon, E<lt>ton.voon@altinity.comE<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright (C) 2006 by Altinity Limited
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself, either Perl version 5.8.4 or,
+at your option, any later version of Perl 5 you may have available.
+
+
+=cut