graffiti/graffiti/api/controllers/v1/ns_controller_factory.py

58 lines
2.0 KiB
Python
Executable File

# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
#
# 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 graffiti.api.controllers.v1.ns_db_controller \
import DBNSController
from graffiti.api.controllers.v1.ns_file_controller \
import FileNSController
from graffiti.api.controllers.v1.ns_mem_controller \
import MemNSController
from oslo.config import cfg
class NSControllerFactory(object):
__controller = None
__controller_type = cfg.CONF.DEFAULT.persistence_type
def __init__(self, **kwargs):
super(NSControllerFactory, self).__init__(**kwargs)
@staticmethod
def create(controller_type, **kwargs):
if controller_type.lower() == 'memory':
print "Namespace persistence = memory"
NSControllerFactory.__controller = MemNSController(**kwargs)
return NSControllerFactory.__controller
elif controller_type.lower() == "db":
print "Namespace persistence = db"
NSControllerFactory.__controller = DBNSController(**kwargs)
return NSControllerFactory.__controller
elif controller_type.lower() == "file":
print "Namespace persistence = File"
NSControllerFactory.__controller = FileNSController(**kwargs)
return NSControllerFactory.__controller
return None
@staticmethod
def get():
if NSControllerFactory.__controller:
return NSControllerFactory.__controller
else:
return NSControllerFactory.create(
NSControllerFactory.__controller_type)