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OpenStack Study: multiple_create.py**** CubicPower OpenStack Study ****
# # 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 webob import exc from nova.api.openstack import extensions from nova import exception from nova.openstack.common.gettextutils import _ from nova.openstack.common import strutils from nova import utils ALIAS = "os-multiple-create" MIN_ATTRIBUTE_NAME = "%s:min_count" % ALIAS MAX_ATTRIBUTE_NAME = "%s:max_count" % ALIAS RRID_ATTRIBUTE_NAME = "%s:return_reservation_id" % ALIAS
**** CubicPower OpenStack Study **** class MultipleCreate(extensions.V3APIExtensionBase): """Allow multiple create in the Create Server v3 API.""" name = "MultipleCreate" alias = ALIAS version = 1
**** CubicPower OpenStack Study **** def get_resources(self): return []
**** CubicPower OpenStack Study **** def get_controller_extensions(self): return [] # use nova.api.extensions.server.extensions entry point to modify # server create kwargs
**** CubicPower OpenStack Study **** def server_create(self, server_dict, create_kwargs): # min_count and max_count are optional. If they exist, they may come # in as strings. Verify that they are valid integers and > 0. # Also, we want to default 'min_count' to 1, and default # 'max_count' to be 'min_count'. min_count = server_dict.get(MIN_ATTRIBUTE_NAME, 1) max_count = server_dict.get(MAX_ATTRIBUTE_NAME, min_count) return_id = server_dict.get(RRID_ATTRIBUTE_NAME, False) try: min_count = utils.validate_integer(min_count, "min_count", min_value=1) max_count = utils.validate_integer(max_count, "max_count", min_value=1) return_id = strutils.bool_from_string(return_id, strict=True) except exception.InvalidInput as e: raise exc.HTTPBadRequest(explanation=e.format_message()) if min_count > max_count: msg = _('min_count must be <= max_count') raise exc.HTTPBadRequest(explanation=msg) create_kwargs['min_count'] = min_count create_kwargs['max_count'] = max_count create_kwargs['return_reservation_id'] = return_id
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