196 lines
7.8 KiB
Python
196 lines
7.8 KiB
Python
# Copyright (c) 2011 Zadara Storage Inc.
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# Copyright (c) 2011 OpenStack Foundation
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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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"""The volume types extra specs extension"""
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from http import HTTPStatus
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import webob
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from cinder.api import extensions
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from cinder.api.openstack import wsgi
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from cinder.api.schemas import types_extra_specs
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from cinder.api import validation
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from cinder import context as ctxt
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from cinder import db
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from cinder import exception
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from cinder.i18n import _
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from cinder.image import image_utils
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from cinder.policies import type_extra_specs as policy
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from cinder import rpc
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from cinder.volume import volume_types
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class VolumeTypeExtraSpecsController(wsgi.Controller):
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"""The volume type extra specs API controller for the OpenStack API."""
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def _get_extra_specs(self, context, type_id):
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extra_specs = db.volume_type_extra_specs_get(context, type_id)
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specs_dict = {}
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for key, value in extra_specs.items():
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specs_dict[key] = value
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return dict(extra_specs=specs_dict)
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def _check_type(self, context, type_id):
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# Not found exception will be handled at the wsgi level
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volume_types.get_volume_type(context, type_id)
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def index(self, req, type_id):
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"""Returns the list of extra specs for a given volume type."""
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context = req.environ['cinder.context']
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context.authorize(policy.GET_ALL_POLICY)
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self._check_type(context, type_id)
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return self._get_extra_specs(context, type_id)
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def _allow_update(self, context, type_id):
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vols = db.volume_get_all(
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ctxt.get_admin_context(),
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limit=1,
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filters={'volume_type_id': type_id})
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if len(vols):
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expl = _('Volume Type is currently in use.')
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raise webob.exc.HTTPBadRequest(explanation=expl)
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return
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def _check_cacheable(self, specs, type_id):
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multiattach = volume_types.get_volume_type_extra_specs(
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type_id, key='multiattach')
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cacheable = volume_types.get_volume_type_extra_specs(
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type_id, key='cacheable')
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isTrue = '<is> True'
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if (specs.get('multiattach') == isTrue and cacheable == isTrue) or (
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specs.get('cacheable') == isTrue and multiattach ==
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isTrue) or (specs.get('cacheable') == isTrue and
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specs.get('multiattach') == isTrue):
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expl = _('cacheable cannot be set with multiattach.')
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raise webob.exc.HTTPBadRequest(explanation=expl)
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return
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@validation.schema(types_extra_specs.create)
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def create(self, req, type_id, body):
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context = req.environ['cinder.context']
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context.authorize(policy.CREATE_POLICY)
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self._allow_update(context, type_id)
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self._check_type(context, type_id)
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specs = body['extra_specs']
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if 'image_service:store_id' in specs:
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image_service_store_id = specs['image_service:store_id']
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image_utils.validate_stores_id(context, image_service_store_id)
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# Check if multiattach be set with cacheable
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self._check_cacheable(specs, type_id)
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db.volume_type_extra_specs_update_or_create(context,
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type_id,
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specs)
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# Get created_at and updated_at for notification
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volume_type = volume_types.get_volume_type(context, type_id)
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notifier_info = dict(type_id=type_id, specs=specs,
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created_at=volume_type['created_at'],
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updated_at=volume_type['updated_at'])
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notifier = rpc.get_notifier('volumeTypeExtraSpecs')
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notifier.info(context, 'volume_type_extra_specs.create',
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notifier_info)
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return body
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@validation.schema(types_extra_specs.update)
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def update(self, req, type_id, id, body):
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context = req.environ['cinder.context']
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context.authorize(policy.UPDATE_POLICY)
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self._allow_update(context, type_id)
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self._check_type(context, type_id)
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if id not in body:
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expl = _('Request body and URI mismatch')
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raise webob.exc.HTTPBadRequest(explanation=expl)
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if 'image_service:store_id' in body:
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image_service_store_id = body['image_service:store_id']
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image_utils.validate_stores_id(context, image_service_store_id)
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if 'extra_specs' in body:
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specs = body['extra_specs']
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# Check if multiattach be set with cacheable
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self._check_cacheable(specs, type_id)
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db.volume_type_extra_specs_update_or_create(context,
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type_id,
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body)
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# Get created_at and updated_at for notification
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volume_type = volume_types.get_volume_type(context, type_id)
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notifier_info = dict(type_id=type_id, id=id,
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created_at=volume_type['created_at'],
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updated_at=volume_type['updated_at'])
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notifier = rpc.get_notifier('volumeTypeExtraSpecs')
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notifier.info(context,
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'volume_type_extra_specs.update',
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notifier_info)
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return body
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def show(self, req, type_id, id):
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"""Return a single extra spec item."""
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context = req.environ['cinder.context']
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context.authorize(policy.GET_POLICY)
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self._check_type(context, type_id)
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specs = self._get_extra_specs(context, type_id)
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if id in specs['extra_specs']:
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return {id: specs['extra_specs'][id]}
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else:
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raise exception.VolumeTypeExtraSpecsNotFound(
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volume_type_id=type_id, extra_specs_key=id)
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@wsgi.response(HTTPStatus.ACCEPTED)
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def delete(self, req, type_id, id):
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"""Deletes an existing extra spec."""
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context = req.environ['cinder.context']
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self._check_type(context, type_id)
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context.authorize(policy.DELETE_POLICY)
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self._allow_update(context, type_id)
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# Not found exception will be handled at the wsgi level
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db.volume_type_extra_specs_delete(context, type_id, id)
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# Get created_at and updated_at for notification
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volume_type = volume_types.get_volume_type(context, type_id)
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notifier_info = dict(type_id=type_id, id=id,
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created_at=volume_type['created_at'],
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updated_at=volume_type['updated_at'],
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deleted_at=volume_type['deleted_at'])
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notifier = rpc.get_notifier('volumeTypeExtraSpecs')
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notifier.info(context,
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'volume_type_extra_specs.delete',
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notifier_info)
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class Types_extra_specs(extensions.ExtensionDescriptor):
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"""Type extra specs support."""
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name = "TypesExtraSpecs"
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alias = "os-types-extra-specs"
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updated = "2011-08-24T00:00:00+00:00"
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def get_resources(self):
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resources = []
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res = extensions.ResourceExtension('extra_specs',
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VolumeTypeExtraSpecsController(),
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parent=dict(member_name='type',
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collection_name='types')
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)
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resources.append(res)
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return resources
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