50 lines
2.1 KiB
Python
50 lines
2.1 KiB
Python
#
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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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from neutron_lib.callbacks import events
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from neutron_lib.callbacks import registry
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from neutron_lib.callbacks import resources
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from neutron_lib.plugins import constants
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from neutron_lib.plugins import directory
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from neutron.common import utils
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from neutron.db import _resource_extend as resource_extend
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from neutron.db import l3_attrs_db
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from neutron.extensions import availability_zone as az_ext
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from neutron.extensions import l3
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@resource_extend.has_resource_extenders
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@registry.has_registry_receivers
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class RouterAvailabilityZoneMixin(l3_attrs_db.ExtraAttributesMixin):
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"""Mixin class to enable router's availability zone attributes."""
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@staticmethod
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@resource_extend.extends([l3.ROUTERS])
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def _add_az_to_response(router_res, router_db):
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l3_plugin = directory.get_plugin(constants.L3)
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if not utils.is_extension_supported(l3_plugin,
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'router_availability_zone'):
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return
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router_res['availability_zones'] = (
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l3_plugin.get_router_availability_zones(router_db))
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@registry.receives(resources.ROUTER, [events.PRECOMMIT_CREATE])
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def _process_az_request(self, resource, event, trigger, context,
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router, router_db, **kwargs):
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if az_ext.AZ_HINTS in router:
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self.validate_availability_zones(context, 'router',
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router[az_ext.AZ_HINTS])
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self.set_extra_attr_value(context, router_db, az_ext.AZ_HINTS,
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router[az_ext.AZ_HINTS])
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