designateclient.client

Source code for designateclient.client

# 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 import parse
from stevedore import extension

from designateclient import exceptions


[docs]@six.add_metaclass(abc.ABCMeta) class Controller(object): def __init__(self, client): self.client = client
[docs] def build_url(self, url, criterion=None, marker=None, limit=None): params = criterion or {} if marker is not None: params['marker'] = marker if limit is not None: params['limit'] = limit q = parse.urlencode(params) if params else '' return '%(url)s%(params)s' % { 'url': url, 'params': '?%s' % q }
def _serialize(self, kwargs): headers = kwargs.get('headers') content_type = headers.get('Content-Type') if headers else None if 'data' in kwargs and content_type in {None, 'application/json'}: kwargs['data'] = json.dumps(kwargs['data']) def _post(self, url, response_key=None, **kwargs): self._serialize(kwargs) resp, body = self.client.session.post(url, **kwargs) if response_key is not None: return body[response_key] return body def _get(self, url, response_key=None): resp, body = self.client.session.get(url) if response_key is not None: return body[response_key] return body def _patch(self, url, response_key=None, **kwargs): self._serialize(kwargs) resp, body = self.client.session.patch(url, **kwargs) if response_key is not None: return body[response_key] return body def _put(self, url, response_key=None, **kwargs): self._serialize(kwargs) resp, body = self.client.session.put(url, **kwargs) if response_key is not None: return body[response_key] return body def _delete(self, url, response_key=None, **kwargs): resp, body = self.client.session.delete(url, **kwargs) if response_key is not None: return body[response_key] return body
[docs]@six.add_metaclass(abc.ABCMeta) class CrudController(Controller):
[docs] @abc.abstractmethod def list(self, *args, **kw): """ List a resource """
[docs] @abc.abstractmethod def get(self, *args, **kw): """ Get a resource """
[docs] @abc.abstractmethod def create(self, *args, **kw): """ Create a resource """
[docs] @abc.abstractmethod def update(self, *args, **kw): """ Update a resource """
[docs] @abc.abstractmethod def delete(self, *args, **kw): """ Delete a resource """
[docs]def get_versions(): mgr = extension.ExtensionManager('designateclient.versions') return dict([(ep.name, ep.plugin) for ep in mgr.extensions])
[docs]def Client(version, *args, **kwargs): # noqa versions = get_versions() if version not in versions: msg = 'Version %s is not supported, use one of (%s)' % ( version, list(six.iterkeys(versions))) raise exceptions.UnsupportedVersion(msg) return versions[version](*args, **kwargs)
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