73c9150afe
Implement a Counter class for use by notification plugins. Define a base class for Notification plugins. Define a dispatcher class for notification events to be passed to the plugins. Add a notification plugin for instance creation and "instance" counters. Add a reusable function for turning a Counter into a metering event dictionary. Change-Id: Iaa626b98e1a661ed31cc8b8e95263c111df20888
39 lines
1.2 KiB
Python
39 lines
1.2 KiB
Python
# -*- encoding: utf-8 -*-
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#
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# Copyright © 2012 New Dream Network, LLC (DreamHost)
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#
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# Author: Doug Hellmann <doug.hellmann@dreamhost.com>
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Base class for plugins.
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"""
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import abc
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class NotificationBase(object):
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"""Base class for plugins that support the notification API."""
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__metaclass__ = abc.ABCMeta
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@abc.abstractmethod
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def get_event_types(self):
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"""Return a sequence of strings defining the event types to be
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given to this plugin."""
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return []
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@abc.abstractmethod
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def process_notification(self, message):
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"""Return a sequence of Counter instances for the given message."""
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pass
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