OpenStack Study: controllers.py

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# Copyright 2012 OpenStack Foundation

#

# Licensed under the Apache License, Version 2.0 (the "License"); you may

# not use this file except in compliance with the License. You may obtain

# a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT

# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the

# License for the specific language governing permissions and limitations

# under the License.

from keystone.common import controller

from keystone.common import dependency

@dependency.requires('policy_api')

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class PolicyV3(controller.V3Controller):

collection_name = 'policies'

member_name = 'policy'

@controller.protected()

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    def create_policy(self, context, policy):

        ref = self._assign_unique_id(self._normalize_dict(policy))

        self._require_attribute(ref, 'blob')

        self._require_attribute(ref, 'type')

        ref = self.policy_api.create_policy(ref['id'], ref)

        return PolicyV3.wrap_member(context, ref)

    @controller.filterprotected('type')

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    def list_policies(self, context, filters):

        hints = PolicyV3.build_driver_hints(context, filters)

        refs = self.policy_api.list_policies(hints=hints)

        return PolicyV3.wrap_collection(context, refs, hints=hints)

    @controller.protected()

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    def get_policy(self, context, policy_id):

        ref = self.policy_api.get_policy(policy_id)

        return PolicyV3.wrap_member(context, ref)

    @controller.protected()

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    def update_policy(self, context, policy_id, policy):

        ref = self.policy_api.update_policy(policy_id, policy)

        return PolicyV3.wrap_member(context, ref)

    @controller.protected()

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    def delete_policy(self, context, policy_id):

        return self.policy_api.delete_policy(policy_id)