os-ken/ryu/services/protocols/bgp/core_manager.py

75 lines
2.4 KiB
Python

# Copyright (C) 2014 Nippon Telegraph and Telephone Corporation.
#
# 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.
"""
Core Manager module dedicated for providing CORE_MANAGER singleton
"""
from ryu.services.protocols.bgp.base import Activity
from ryu.services.protocols.bgp.base import ActivityException
from ryu.services.protocols.bgp.rtconf.neighbors import NeighborsConf
from ryu.services.protocols.bgp.rtconf.vrfs import VrfsConf
class _CoreManager(Activity):
"""Core service manager.
"""
def __init__(self):
self._common_conf = None
self._neighbors_conf = None
self._vrfs_conf = None
self._core_service = None
super(_CoreManager, self).__init__()
def _run(self, *args, **kwargs):
self._common_conf = kwargs.pop('common_conf')
self._neighbors_conf = NeighborsConf()
self._vrfs_conf = VrfsConf()
from ryu.services.protocols.bgp.core import CoreService
self._core_service = CoreService(self._common_conf,
self._neighbors_conf,
self._vrfs_conf)
waiter = kwargs.pop('waiter')
core_activity = self._spawn_activity(self._core_service, waiter=waiter)
core_activity.wait()
def get_core_service(self):
self._check_started()
return self._core_service
def _check_started(self):
if not self.started:
raise ActivityException('Cannot access any property before '
'activity has started')
@property
def common_conf(self):
self._check_started()
return self._common_conf
@property
def neighbors_conf(self):
self._check_started()
return self._neighbors_conf
@property
def vrfs_conf(self):
self._check_started()
return self._vrfs_conf
# _CoreManager instance that manages core bgp service and configuration data.
CORE_MANAGER = _CoreManager()