121 lines
3.1 KiB
Python
121 lines
3.1 KiB
Python
# Copyright 2014
|
|
# The Cloudscaling Group, Inc.
|
|
#
|
|
# 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
|
|
|
|
from webob import exc
|
|
|
|
from gceapi.api import base_api
|
|
from gceapi.api import utils
|
|
|
|
|
|
class Scope(object):
|
|
"""Scope that contains resource.
|
|
|
|
The following scopes exists: global, aggregated, zones, regions.
|
|
"""
|
|
|
|
_type = None
|
|
_collection = None
|
|
_name = None
|
|
|
|
@abc.abstractmethod
|
|
def __init__(self, scope_name):
|
|
self._name = scope_name
|
|
|
|
def get_type(self):
|
|
return self._type
|
|
|
|
def get_name(self):
|
|
return self._name
|
|
|
|
def get_collection(self):
|
|
return self._collection
|
|
|
|
def get_path(self):
|
|
if self._collection is not None and self._name is not None:
|
|
return "/".join([self._collection, self._name])
|
|
else:
|
|
return self._type
|
|
|
|
def get_scope_api(self):
|
|
base_api.Singleton.get_instance(self.get_type())
|
|
|
|
|
|
class GlobalScope(Scope):
|
|
|
|
_type = "global"
|
|
|
|
def __init__(self):
|
|
super(GlobalScope, self).__init__(None)
|
|
|
|
|
|
class AggregatedScope(Scope):
|
|
|
|
_type = "aggregated"
|
|
|
|
def __init__(self):
|
|
super(AggregatedScope, self).__init__(None)
|
|
|
|
|
|
class ZoneScope(Scope):
|
|
|
|
_type = "zone"
|
|
_collection = utils.get_collection_name(_type)
|
|
|
|
def __init__(self, scope_name):
|
|
super(ZoneScope, self).__init__(scope_name)
|
|
|
|
|
|
class RegionScope(Scope):
|
|
|
|
_type = "region"
|
|
_collection = utils.get_collection_name(_type)
|
|
|
|
def __init__(self, scope_name):
|
|
super(RegionScope, self).__init__(scope_name)
|
|
|
|
|
|
def construct(scope_type, scope_id):
|
|
if scope_type == "zone":
|
|
return ZoneScope(scope_id)
|
|
elif scope_type == "region":
|
|
return RegionScope(scope_id)
|
|
elif scope_type == "global":
|
|
return GlobalScope()
|
|
elif scope_type == "aggregated":
|
|
return AggregatedScope()
|
|
return None
|
|
|
|
|
|
def construct_from_path(path, scope_id):
|
|
path_info = [item for item in path.split("/") if item]
|
|
path_count = len(path_info)
|
|
if path_count == 0:
|
|
raise exc.HTTPBadRequest(comment="Bad path %s" % path)
|
|
if path_count < 3:
|
|
return None
|
|
collection_or_type = path_info[1]
|
|
if collection_or_type in ("zones", "regions") and scope_id is None:
|
|
return None
|
|
if collection_or_type == "zones":
|
|
return ZoneScope(scope_id)
|
|
elif collection_or_type == "regions":
|
|
return RegionScope(scope_id)
|
|
elif collection_or_type == "global":
|
|
return GlobalScope()
|
|
elif collection_or_type == "aggregated":
|
|
return AggregatedScope()
|
|
raise exc.HTTPBadRequest(comment="Bad path %s" % path)
|