deb-designate/designate/api/v2/patches.py
Ryan Petrello 1409a2eb44 Don't monkeypatch pecan.core.Request in newer versions of pecan
An upcoming version of pecan will allow you to specify a custom pecan.request
implementation in the Pecan WSGI application constructor.  Detect support for
this functionality and attempt to utilize it instead of the current
monkeypatching approach.

Change-Id: Ie3c257d0cf0618c20af2b834a9ec9698534d23c5
2014-06-25 23:34:09 -04:00

52 lines
1.9 KiB
Python

# Copyright 2013 Hewlett-Packard Development Company, L.P.
#
# Author: Kiall Mac Innes <kiall@hp.com>
#
# 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 inspect import ismethod
from inspect import getargspec
import pecan.core
from designate import exceptions
from designate.openstack.common import jsonutils
JSON_TYPES = ('application/json', 'application/json-patch+json')
class Request(pecan.core.Request):
@property
def body_dict(self):
"""
Returns the body content as a dictonary, deserializing per the
Content-Type header.
We add this method to ease future XML support, so the main code
is not hardcoded to call pecans "request.json()" method.
"""
if self.content_type in JSON_TYPES:
try:
return jsonutils.load(self.body_file)
except ValueError as valueError:
raise exceptions.InvalidJson(valueError.message)
else:
raise Exception('TODO: Unsupported Content Type')
__init__ = pecan.core.Pecan.__base__.__init__
if not ismethod(__init__) or 'request_cls' not in getargspec(__init__).args:
# only attempt to monkey patch `pecan.Request` in older versions of pecan;
# newer versions support specifying a custom request implementation in the
# `pecan.core.Pecan` constructor via the `request_cls` argument
pecan.core.Request = Request