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# Copyright (c) 2015 Hewlett-Packard Development Company, L.P.
# All Rights Reserved.
#
# 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 collections
from oslo_log import log as logging
from neutron.callbacks import events
from neutron.callbacks import registry
from neutron.callbacks import resources
from networking_odl.common import constants as odl_const
LOG = logging.getLogger(__name__)
ODLResource = collections.namedtuple('ODLResource', ('singular', 'plural'))
_RESOURCE_MAPPING = {
resources.SECURITY_GROUP: ODLResource(odl_const.ODL_SG, odl_const.ODL_SGS),
resources.SECURITY_GROUP_RULE: ODLResource(odl_const.ODL_SG_RULE,
odl_const.ODL_SG_RULES),
}
_OPERATION_MAPPING = {
events.AFTER_CREATE: odl_const.ODL_CREATE,
events.AFTER_UPDATE: odl_const.ODL_UPDATE,
events.AFTER_DELETE: odl_const.ODL_DELETE,
}
class OdlSecurityGroupsHandler(object):
def __init__(self, odl_driver):
self.odl_driver = odl_driver
self._subscribe()
def _subscribe(self):
for event in (events.AFTER_CREATE, events.AFTER_DELETE):
registry.subscribe(self.sg_callback, resources.SECURITY_GROUP,
event)
registry.subscribe(self.sg_callback, resources.SECURITY_GROUP_RULE,
event)
registry.subscribe(self.sg_callback, resources.SECURITY_GROUP,
events.AFTER_UPDATE)
def sg_callback(self, resource, event, trigger, **kwargs):
res = kwargs.get(resource)
res_id = kwargs.get("%s_id" % resource)
odl_res_type = _RESOURCE_MAPPING[resource]
odl_ops = _OPERATION_MAPPING[event]
odl_res_dict = None if res is None else {odl_res_type.singular: res}
LOG.debug("Calling sync_from_callback with ODL_OPS (%(odl_ops)s) "
"ODL_RES_TYPE (%(odl_res_type)s) RES_ID (%(res_id)s) "
"ODL_RES_DICT (%(odl_res_dict)s) KWARGS (%(kwargs)s)",
{'odl_ops': odl_ops, 'odl_res_type': odl_res_type,
'res_id': res_id, 'odl_res_dict': odl_res_dict,
'kwargs': kwargs})
self.odl_driver.sync_from_callback(odl_ops, odl_res_type,
res_id, odl_res_dict)
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