183c3d5f07
The most of objects are removed from the extensions module. The last thing is the expected_errors decorator, but that decorator is nothing about the extensions. So move the decorator to the wsgi module where is the place put the other decorator also. Then we can remove the extensions module entirely. Partial implement bp api-extensions-merge-queens Change-Id: I4802c5b38001a756448d4feb9ca336908821f591
163 lines
6.5 KiB
Python
163 lines
6.5 KiB
Python
# Copyright 2011 OpenStack Foundation
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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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from webob import exc
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from nova.api.openstack import common
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from nova.api.openstack.compute.schemas import server_metadata
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from nova.api.openstack import wsgi
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from nova.api import validation
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from nova import compute
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from nova import exception
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from nova.i18n import _
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from nova.policies import server_metadata as sm_policies
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class ServerMetadataController(wsgi.Controller):
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"""The server metadata API controller for the OpenStack API."""
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def __init__(self):
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self.compute_api = compute.API()
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super(ServerMetadataController, self).__init__()
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def _get_metadata(self, context, server_id):
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server = common.get_instance(self.compute_api, context, server_id)
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try:
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# NOTE(mikal): get_instance_metadata sometimes returns
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# InstanceNotFound in unit tests, even though the instance is
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# fetched on the line above. I blame mocking.
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meta = self.compute_api.get_instance_metadata(context, server)
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except exception.InstanceNotFound:
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msg = _('Server does not exist')
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raise exc.HTTPNotFound(explanation=msg)
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meta_dict = {}
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for key, value in meta.items():
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meta_dict[key] = value
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return meta_dict
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@wsgi.expected_errors(404)
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def index(self, req, server_id):
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"""Returns the list of metadata for a given instance."""
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context = req.environ['nova.context']
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context.can(sm_policies.POLICY_ROOT % 'index')
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return {'metadata': self._get_metadata(context, server_id)}
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@wsgi.expected_errors((403, 404, 409))
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# NOTE(gmann): Returns 200 for backwards compatibility but should be 201
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# as this operation complete the creation of metadata.
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@validation.schema(server_metadata.create)
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def create(self, req, server_id, body):
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metadata = body['metadata']
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context = req.environ['nova.context']
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context.can(sm_policies.POLICY_ROOT % 'create')
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new_metadata = self._update_instance_metadata(context,
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server_id,
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metadata,
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delete=False)
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return {'metadata': new_metadata}
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@wsgi.expected_errors((400, 403, 404, 409))
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@validation.schema(server_metadata.update)
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def update(self, req, server_id, id, body):
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context = req.environ['nova.context']
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context.can(sm_policies.POLICY_ROOT % 'update')
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meta_item = body['meta']
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if id not in meta_item:
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expl = _('Request body and URI mismatch')
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raise exc.HTTPBadRequest(explanation=expl)
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self._update_instance_metadata(context,
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server_id,
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meta_item,
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delete=False)
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return {'meta': meta_item}
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@wsgi.expected_errors((403, 404, 409))
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@validation.schema(server_metadata.update_all)
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def update_all(self, req, server_id, body):
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context = req.environ['nova.context']
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context.can(sm_policies.POLICY_ROOT % 'update_all')
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metadata = body['metadata']
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new_metadata = self._update_instance_metadata(context,
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server_id,
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metadata,
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delete=True)
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return {'metadata': new_metadata}
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def _update_instance_metadata(self, context, server_id, metadata,
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delete=False):
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server = common.get_instance(self.compute_api, context, server_id)
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try:
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return self.compute_api.update_instance_metadata(context,
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server,
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metadata,
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delete)
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except exception.InstanceUnknownCell as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except exception.QuotaError as error:
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raise exc.HTTPForbidden(explanation=error.format_message())
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except exception.InstanceIsLocked as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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except exception.InstanceInvalidState as state_error:
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common.raise_http_conflict_for_instance_invalid_state(state_error,
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'update metadata', server_id)
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@wsgi.expected_errors(404)
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def show(self, req, server_id, id):
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"""Return a single metadata item."""
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context = req.environ['nova.context']
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context.can(sm_policies.POLICY_ROOT % 'show')
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data = self._get_metadata(context, server_id)
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try:
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return {'meta': {id: data[id]}}
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except KeyError:
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msg = _("Metadata item was not found")
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raise exc.HTTPNotFound(explanation=msg)
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@wsgi.expected_errors((404, 409))
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@wsgi.response(204)
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def delete(self, req, server_id, id):
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"""Deletes an existing metadata."""
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context = req.environ['nova.context']
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context.can(sm_policies.POLICY_ROOT % 'delete')
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metadata = self._get_metadata(context, server_id)
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if id not in metadata:
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msg = _("Metadata item was not found")
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raise exc.HTTPNotFound(explanation=msg)
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server = common.get_instance(self.compute_api, context, server_id)
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try:
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self.compute_api.delete_instance_metadata(context, server, id)
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except exception.InstanceUnknownCell as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except exception.InstanceIsLocked as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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except exception.InstanceInvalidState as state_error:
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common.raise_http_conflict_for_instance_invalid_state(state_error,
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'delete metadata', server_id)
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