128 lines
4.2 KiB
Python
128 lines
4.2 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright (c) 2012, Intel Performance Learning Solutions Ltd.
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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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"""
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OCCI registry
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"""
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#R0201:method could be func.E1002:old style obj
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#pylint: disable=R0201,E1002
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from occi import registry as occi_registry
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from api.compute import openstack
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from api.extensions import occi_future
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from nova.flags import FLAGS
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class OCCIRegistry(occi_registry.NonePersistentRegistry):
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"""
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Registry for OpenStack.
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"""
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def __init__(self):
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super(OCCIRegistry, self).__init__()
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self.transient = {}
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def set_hostname(self, hostname):
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"""
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Set the hostname.
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"""
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if FLAGS.occi_custom_location_hostname:
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hostname = FLAGS.occi_custom_location_hostname
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super(OCCIRegistry, self).set_hostname(hostname)
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def get_extras(self, extras):
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"""
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Get data which is encapsulated in the extras.
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"""
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sec_extras = None
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if extras is not None:
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sec_extras = {'user_id': extras['nova_ctx'].user_id,
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'project_id': extras['nova_ctx'].project_id}
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return sec_extras
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def add_resource(self, key, resource, extras):
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"""
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Ensures OpenStack keys are used as resource identifiers and sets
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user id and tenant id
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"""
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key = resource.kind.location + resource.attributes['occi.core.id']
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resource.identifier = key
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super(OCCIRegistry, self).add_resource(key, resource, extras)
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def add_transient_resource(self, parent, key, resource, extras):
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"""
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Add a resource which is transient - meaning when the parent which
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links to this resource gets deleted the transient resource gets
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deleted as well.
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"""
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self.add_resource(key, resource, extras)
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if parent in self.transient:
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self.transient[parent].append(resource)
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else:
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self.transient[parent] = [resource]
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def delete_resource(self, key, extras):
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"""
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Deletes a resource. When resource has associate resources those
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will be deleted as well.
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"""
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parent = self.get_resource(key, extras)
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if parent in self.transient:
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for item in self.transient[parent]:
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tmp = item.identifier
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super(OCCIRegistry, self).delete_resource(tmp, extras)
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super(OCCIRegistry, self).delete_resource(key, extras)
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def get_resource(self, key, extras):
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"""
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Ensure that the default network is visible to all!
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"""
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# TODO: move to pyssf!
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if self.resources[key].extras is not None and self.resources[key]\
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.extras != self.get_extras(extras):
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raise KeyError
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return self.resources[key]
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def delete_mixin(self, mixin, extras):
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"""
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Allows for the deletion of user defined mixins.
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If the mixin is a security group mixin then that mixin's
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backend is called.
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"""
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if (hasattr(mixin, 'related') and
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occi_future.SEC_GROUP in mixin.related):
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backend = self.get_backend(mixin, extras)
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backend.destroy(mixin, extras)
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super(OCCIRegistry, self).delete_mixin(mixin, extras)
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def set_backend(self, category, backend, extras):
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"""
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Assigns user id and tenant id to user defined mixins
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"""
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if (hasattr(category, 'related') and
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occi_future.SEC_GROUP in category.related):
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backend = openstack.SecurityGroupBackend()
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backend.init_sec_group(category, extras)
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super(OCCIRegistry, self).set_backend(category, backend, extras)
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