61 lines
2.2 KiB
Python
61 lines
2.2 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright 2011 Citrix System.
|
|
# All Rights Reserved.
|
|
#
|
|
# 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 quantum.openstack.common import log as logging
|
|
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class QuantumController(object):
|
|
""" Base controller class for Quantum API """
|
|
# _resource_name will be redefined in sub concrete controller
|
|
_resource_name = None
|
|
|
|
def __init__(self, plugin):
|
|
self._plugin = plugin
|
|
super(QuantumController, self).__init__()
|
|
|
|
def _prepare_request_body(self, body, params):
|
|
""" verifies required parameters are in request body.
|
|
sets default value for missing optional parameters.
|
|
|
|
body argument must be the deserialized body
|
|
"""
|
|
try:
|
|
if body is None:
|
|
# Initialize empty resource for setting default value
|
|
body = {self._resource_name: {}}
|
|
data = body[self._resource_name]
|
|
except KeyError:
|
|
# raise if _resource_name is not in req body.
|
|
raise exc.HTTPBadRequest(_("Unable to find '%s' in request body") %
|
|
self._resource_name)
|
|
for param in params:
|
|
param_name = param['param-name']
|
|
param_value = data.get(param_name)
|
|
# If the parameter wasn't found and it was required, return 400
|
|
if param_value is None and param['required']:
|
|
msg = (_("Failed to parse request. "
|
|
"Parameter '%s' not specified") % param_name)
|
|
LOG.error(msg)
|
|
raise exc.HTTPBadRequest(msg)
|
|
data[param_name] = param_value or param.get('default-value')
|
|
return body
|