08a60f7483
With python 3.x, classes can use the metaclass= logic to not require usage of the six library. One step in removing all of six usage from neutron. Change-Id: I2f815e412d9a96eb5faf2b3bb3a1e393a9db9309
50 lines
1.6 KiB
Python
50 lines
1.6 KiB
Python
# Copyright (c) 2015 Red Hat Inc.
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# All Rights Reserved.
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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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import abc
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NETWORK = 'network'
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PORT = 'port'
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EVENT_CREATE = 'create'
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EVENT_UPDATE = 'update'
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CORE_RESOURCES = [NETWORK, PORT]
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class CoreResourceExtension(object, metaclass=abc.ABCMeta):
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@abc.abstractmethod
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def process_fields(self, context, resource_type, event_type,
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requested_resource, actual_resource):
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"""Process extension fields.
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:param context: neutron api request context
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:param resource_type: core resource type (one of CORE_RESOURCES)
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:param event_type: kind of event triggering this action (update,
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create)
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:param requested_resource: resource dict that contains extension fields
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:param actual_resource: actual resource dict known to plugin
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"""
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@abc.abstractmethod
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def extract_fields(self, resource_type, resource):
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"""Extract extension fields.
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:param resource_type: core resource type (one of CORE_RESOURCES)
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:param resource: resource dict that contains extension fields
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"""
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