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# Copyright 2013 IBM Corp.
#
# 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.i18n 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
class MultipleCreate(extensions.V3APIExtensionBase):
"""Allow multiple create in the Create Server v3 API."""
name = "MultipleCreate"
alias = ALIAS
version = 1
def get_resources(self):
return []
def get_controller_extensions(self):
return []
# use nova.api.extensions.server.extensions entry point to modify
# server create kwargs
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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