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OpenStack Study: types_manage.py**** CubicPower OpenStack Study ****
# Copyright (c) 2011 Zadara Storage Inc. # Copyright (c) 2011 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. """The volume types manage extension.""" import six import webob from cinder.api import extensions from cinder.api.openstack import wsgi from cinder.api.v1 import types from cinder.api.views import types as views_types from cinder import exception from cinder import rpc from cinder.volume import volume_types authorize = extensions.extension_authorizer('volume', 'types_manage')
**** CubicPower OpenStack Study **** class VolumeTypesManageController(wsgi.Controller): """The volume types API controller for the OpenStack API.""" _view_builder_class = views_types.ViewBuilder
**** CubicPower OpenStack Study **** def _notify_volume_type_error(self, context, method, payload): rpc.get_notifier('volumeType').error(context, method, payload) @wsgi.action("create") @wsgi.serializers(xml=types.VolumeTypeTemplate)
**** CubicPower OpenStack Study **** def _create(self, req, body): """Creates a new volume type.""" context = req.environ['cinder.context'] authorize(context) if not self.is_valid_body(body, 'volume_type'): raise webob.exc.HTTPBadRequest() vol_type = body['volume_type'] name = vol_type.get('name', None) specs = vol_type.get('extra_specs', {}) if name is None or name == "": raise webob.exc.HTTPBadRequest() try: volume_types.create(context, name, specs) vol_type = volume_types.get_volume_type_by_name(context, name) notifier_info = dict(volume_types=vol_type) rpc.get_notifier('volumeType').info(context, 'volume_type.create', notifier_info) except exception.VolumeTypeExists as err: notifier_err = dict(volume_types=vol_type, error_message=err) self._notify_volume_type_error(context, 'volume_type.create', notifier_err) raise webob.exc.HTTPConflict(explanation=six.text_type(err)) except exception.NotFound as err: notifier_err = dict(volume_types=vol_type, error_message=err) self._notify_volume_type_error(context, 'volume_type.create', notifier_err) raise webob.exc.HTTPNotFound() return self._view_builder.show(req, vol_type) @wsgi.action("delete")
**** CubicPower OpenStack Study **** def _delete(self, req, id): """Deletes an existing volume type.""" context = req.environ['cinder.context'] authorize(context) try: vol_type = volume_types.get_volume_type(context, id) volume_types.destroy(context, vol_type['id']) notifier_info = dict(volume_types=vol_type) rpc.get_notifier('volumeType').info(context, 'volume_type.delete', notifier_info) except exception.VolumeTypeInUse as err: notifier_err = dict(id=id, error_message=err) self._notify_volume_type_error(context, 'volume_type.delete', notifier_err) msg = _('Target volume type is still in use.') raise webob.exc.HTTPBadRequest(explanation=msg) except exception.NotFound as err: notifier_err = dict(id=id, error_message=err) self._notify_volume_type_error(context, 'volume_type.delete', notifier_err) raise webob.exc.HTTPNotFound() return webob.Response(status_int=202)
**** CubicPower OpenStack Study **** class Types_manage(extensions.ExtensionDescriptor): """Types manage support.""" name = "TypesManage" alias = "os-types-manage" namespace = "http://docs.openstack.org/volume/ext/types-manage/api/v1" updated = "2011-08-24T00:00:00+00:00"
**** CubicPower OpenStack Study **** def get_controller_extensions(self): controller = VolumeTypesManageController() extension = extensions.ControllerExtension(self, 'types', controller) return [extension]
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