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NAME

Monitor::MetricsAPI::Metric::Timestamp - Timestamp metric class for Monitor::MetricsAPI

SYNOPSIS

    use Monitor::MetricsAPI;

    my $collector = Monitor::MetricsAPI->new(
        metrics => { auditing => { admin => { last_lockout => 'timestamp' } } }
    );

    # Later on, when a client is locked out of your admin functions because
    # of repeated authentication failures:
    $collector->metric('auditing/admin/last_lockout')->now;

DESCRIPTION

Timestamp metrics allow you to record the time at which an event most recently occurred. The base set() method is disabled (a warning will be emitted if you call it, and no other action will be taken). All timestamp metrics initialize to an empty value, and are always displayed in reporting output as UTC in the ISO-8601 format.

METHODS

The following methods are specific to timestamp metrics. Monitor::MetricsAPI::Metric defines methods which are common to all metric types.

now

Sets the value of the timestamp metric to the current time.

dt

Returns a DateTime object, suitable for use in date calculations.

set

Overrides the set() method provided by the base Metric class. Emits a warning whenever called, and performs no other actions.

AUTHORS

Jon Sime <jonsime@gmail.com>

LICENSE AND COPYRIGHT

This software is copyright (c) 2015 by OmniTI Computer Consulting, Inc.

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.