neutron/quantum/api/api_common.py

71 lines
2.7 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.
import logging
from webob import exc
from quantum import manager
from quantum.common import wsgi
XML_NS_V01 = 'http://netstack.org/quantum/api/v0.1'
XML_NS_V10 = 'http://netstack.org/quantum/api/v1.0'
LOG = logging.getLogger('quantum.api.api_common')
class QuantumController(wsgi.Controller):
""" Base controller class for Quantum API """
def __init__(self, plugin_conf_file=None):
self._setup_network_manager()
super(QuantumController, self).__init__()
def _parse_request_params(self, req, params):
results = {}
for param in params:
param_name = param['param-name']
param_value = None
# 1- parse request body
if req.body:
des_body = self._deserialize(req.body,
req.best_match_content_type())
data = des_body and des_body.get(self._resource_name, None)
param_value = data and data.get(param_name, None)
if not param_value:
# 2- parse request headers
# prepend param name with a 'x-' prefix
param_value = req.headers.get("x-" + param_name, None)
# 3- parse request query parameters
if not param_value:
try:
param_value = req.str_GET[param_name]
except KeyError:
#param not found
pass
if not param_value and param['required']:
msg = ("Failed to parse request. " +
"Parameter: %(param_name)s " +
"not specified" % locals())
for line in msg.split('\n'):
LOG.error(line)
raise exc.HTTPBadRequest(msg)
results[param_name] = param_value or param.get('default-value')
return results
def _setup_network_manager(self):
self.network_manager = manager.QuantumManager().get_manager()