neutron/neutron/agent/l2/l2_agent_extensions_manager.py

61 lines
2.3 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
from neutron.agent import agent_extensions_manager as agent_ext_manager
from neutron.conf.agent import agent_extensions_manager as agent_ext_mgr_config
LOG = log.getLogger(__name__)
L2_AGENT_EXT_MANAGER_NAMESPACE = 'neutron.agent.l2.extensions'
def register_opts(conf):
agent_ext_mgr_config.register_agent_ext_manager_opts(conf)
class L2AgentExtensionsManager(agent_ext_manager.AgentExtensionsManager):
"""Manage l2 agent extensions. The handle_port and delete_port methods are
guaranteed to be attributes of each extension because they have been
marked as abc.abstractmethod in the extensions' abstract class.
"""
def __init__(self, conf):
super(L2AgentExtensionsManager, self).__init__(conf,
L2_AGENT_EXT_MANAGER_NAMESPACE)
def handle_port(self, context, data):
"""Notify all agent extensions to handle port."""
for extension in self:
if hasattr(extension.obj, 'handle_port'):
extension.obj.handle_port(context, data)
else:
LOG.error(
"Agent Extension '%(name)s' does not "
"implement method handle_port",
{'name': extension.name}
)
def delete_port(self, context, data):
"""Notify all agent extensions to delete port."""
for extension in self:
if hasattr(extension.obj, 'delete_port'):
extension.obj.delete_port(context, data)
else:
LOG.error(
"Agent Extension '%(name)s' does not "
"implement method delete_port",
{'name': extension.name}
)