python-cueclient/cueclient/controller.py

121 lines
2.9 KiB
Python

# Copyright 2012 Managed I.T.
#
# Author: Kiall Mac Innes <kiall@managedit.ie>
#
# 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 abc
import json
import six
from six.moves.urllib.parse import urlencode
@six.add_metaclass(abc.ABCMeta)
class Controller(object):
def __init__(self, client):
self.client = client
def build_url(self, url, marker=None, limit=None, params=None):
params = params or {}
if marker is not None:
params['marker'] = marker
if limit is not None:
params['limit'] = limit
q = urlencode(params) if params else ''
return '%(url)s%(params)s' % {
'url': url,
'params': '?%s' % q
}
def _serialize(self, kwargs):
if 'data' in kwargs:
kwargs['data'] = json.dumps(kwargs['data'])
def _post(self, url, response_key=None, **kwargs):
self._serialize(kwargs)
resp = self.client.session.post(url, **kwargs)
data = resp.json()
if response_key in data:
return data[response_key]
return data
def _get(self, url, response_key=None):
resp = self.client.session.get(url)
data = resp.json()
if response_key in data:
return data[response_key]
return data
def _patch(self, url, response_key=None, **kwargs):
self._serialize(kwargs)
resp = self.client.session.patch(url, **kwargs)
data = resp.json()
if response_key in data:
return data[response_key]
return data
def _put(self, url, response_key=None, **kwargs):
self._serialize(kwargs)
resp = self.client.session.put(url, **kwargs)
data = resp.json()
if response_key in data:
return data[response_key]
return data
def _delete(self, url):
self.client.session.delete(url)
@six.add_metaclass(abc.ABCMeta)
class CrudController(Controller):
@abc.abstractmethod
def list(self, *args, **kw):
"""
List a resource
"""
@abc.abstractmethod
def get(self, *args, **kw):
"""
Get a resouce
"""
@abc.abstractmethod
def create(self, *args, **kw):
"""
Create a resource
"""
@abc.abstractmethod
def update(self, *args, **kw):
"""
Update a resource
"""
@abc.abstractmethod
def delete(self, *args, **kw):
"""
Delete a resource
"""