neutron/neutron/api/rpc/callbacks/consumer/registry.py

45 lines
1.4 KiB
Python

# 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 oslo_log import log as logging
from neutron.api.rpc.callbacks import resource_manager
LOG = logging.getLogger(__name__)
#TODO(ajo): consider adding locking to _get_manager, it's
# safe for eventlet, but not for normal threading.
def _get_manager():
return resource_manager.ConsumerResourceCallbacksManager()
def subscribe(callback, resource_type):
_get_manager().register(callback, resource_type)
def unsubscribe(callback, resource_type):
_get_manager().unregister(callback, resource_type)
def push(resource_type, resource, event_type):
"""Push resource events into all registered callbacks for the type."""
callbacks = _get_manager().get_callbacks(resource_type)
for callback in callbacks:
callback(resource, event_type)
def clear():
_get_manager().clear()