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
73 lines
2.6 KiB
Python
73 lines
2.6 KiB
Python
# Copyright (c) 2016 IBM
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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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from oslo_config import cfg
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from oslo_log import log
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from neutron import manager
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LOG = log.getLogger(__name__)
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class ExternalDNSService(object, metaclass=abc.ABCMeta):
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"""Interface definition for an external dns service driver."""
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def __init__(self):
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"""Initialize external dns service driver."""
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@classmethod
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def get_instance(cls):
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"""Return an instance of the configured external DNS driver."""
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external_dns_driver_name = cfg.CONF.external_dns_driver
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mgr = manager.NeutronManager
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LOG.debug("Loading external dns driver: %s", external_dns_driver_name)
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driver_class = mgr.load_class_for_provider(
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'neutron.services.external_dns_drivers', external_dns_driver_name)
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return driver_class()
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@abc.abstractmethod
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def create_record_set(self, context, dns_domain, dns_name, records):
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"""Create a record set in the specified zone.
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:param context: neutron api request context
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:type context: neutron_lib.context.Context
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:param dns_domain: the dns_domain where the record set will be created
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:type dns_domain: String
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:param dns_name: the name associated with the record set
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:type dns_name: String
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:param records: the records in the set
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:type records: List of Strings
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:raises: neutron.extensions.dns.DNSDomainNotFound
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neutron.extensions.dns.DuplicateRecordSet
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"""
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@abc.abstractmethod
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def delete_record_set(self, context, dns_domain, dns_name, records):
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"""Delete a record set in the specified zone.
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:param context: neutron api request context
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:type context: neutron.context.Context
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:param dns_domain: the dns_domain from which the record set will be
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deleted
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:type dns_domain: String
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:param dns_name: the dns_name associated with the record set to be
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deleted
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:type dns_name: String
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:param records: the records in the set to be deleted
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:type records: List of Strings
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"""
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