122 lines
4.7 KiB
Python
122 lines
4.7 KiB
Python
# Copyright 2018 Huawei
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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 copy
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from keystone.common import cache
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from keystone.common import driver_hints
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from keystone.common import manager
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from keystone.common import provider_api
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import keystone.conf
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from keystone import exception
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from keystone.limit.models import base
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CONF = keystone.conf.CONF
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PROVIDERS = provider_api.ProviderAPIs
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MEMOIZE = cache.get_memoization_decorator(group='unified_limit')
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class Manager(manager.Manager):
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driver_namespace = 'keystone.unified_limit'
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_provides_api = 'unified_limit_api'
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def __init__(self):
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unified_limit_driver = CONF.unified_limit.driver
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super(Manager, self).__init__(unified_limit_driver)
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self.enforcement_model = base.load_driver(
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CONF.unified_limit.enforcement_model)
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def _assert_resource_exist(self, unified_limit, target):
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try:
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service_id = unified_limit.get('service_id')
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if service_id is not None:
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PROVIDERS.catalog_api.get_service(service_id)
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region_id = unified_limit.get('region_id')
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if region_id is not None:
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PROVIDERS.catalog_api.get_region(region_id)
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project_id = unified_limit.get('project_id')
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if project_id is not None:
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PROVIDERS.resource_api.get_project(project_id)
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except exception.ServiceNotFound:
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raise exception.ValidationError(attribute='service_id',
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target=target)
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except exception.RegionNotFound:
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raise exception.ValidationError(attribute='region_id',
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target=target)
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except exception.ProjectNotFound:
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raise exception.ValidationError(attribute='project_id',
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target=target)
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def get_model(self):
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"""Return information of the configured enforcement model."""
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return {
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'name': self.enforcement_model.NAME,
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'description': self.enforcement_model.DESCRIPTION
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}
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def create_registered_limits(self, registered_limits):
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for registered_limit in registered_limits:
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self._assert_resource_exist(registered_limit, 'registered_limit')
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return self.driver.create_registered_limits(registered_limits)
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def update_registered_limit(self, registered_limit_id, registered_limit):
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self._assert_resource_exist(registered_limit, 'registered_limit')
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updated_registered_limit = self.driver.update_registered_limit(
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registered_limit_id, registered_limit)
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self.get_registered_limit.invalidate(self,
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updated_registered_limit['id'])
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return updated_registered_limit
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@manager.response_truncated
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def list_registered_limits(self, hints=None):
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return self.driver.list_registered_limits(
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hints or driver_hints.Hints())
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@MEMOIZE
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def get_registered_limit(self, registered_limit_id):
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return self.driver.get_registered_limit(registered_limit_id)
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def delete_registered_limit(self, registered_limit_id):
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self.driver.delete_registered_limit(registered_limit_id)
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self.get_registered_limit.invalidate(self, registered_limit_id)
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def create_limits(self, limits):
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for limit in limits:
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self._assert_resource_exist(limit, 'limit')
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self.enforcement_model.check_limit(copy.deepcopy(limits))
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return self.driver.create_limits(limits)
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def update_limit(self, limit_id, limit):
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self._assert_resource_exist(limit, 'limit')
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limit_ref = self.get_limit(limit_id)
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limit_ref.update(limit)
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self.enforcement_model.check_limit(copy.deepcopy([limit_ref]))
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updated_limit = self.driver.update_limit(limit_id, limit)
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self.get_limit.invalidate(self, updated_limit['id'])
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return updated_limit
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@manager.response_truncated
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def list_limits(self, hints=None):
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return self.driver.list_limits(hints or driver_hints.Hints())
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@MEMOIZE
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def get_limit(self, limit_id):
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return self.driver.get_limit(limit_id)
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def delete_limit(self, limit_id):
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self.driver.delete_limit(limit_id)
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self.get_limit.invalidate(self, limit_id)
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