71 lines
2.7 KiB
Python
71 lines
2.7 KiB
Python
# Copyright (c) 2013 OpenStack, LLC.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from quantum.common import topics
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from quantum.openstack.common import log as logging
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from quantum.openstack.common.rpc import proxy
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LOG = logging.getLogger(__name__)
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class DhcpAgentNotifyAPI(proxy.RpcProxy):
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"""API for plugin to notify DHCP agent."""
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BASE_RPC_API_VERSION = '1.0'
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# It seems dhcp agent does not support bulk operation
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VALID_RESOURCES = ['network', 'subnet', 'port']
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VALID_METHOD_NAMES = ['network.create.end',
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'network.update.end',
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'network.delete.end',
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'subnet.create.end',
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'subnet.update.end',
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'subnet.delete.end',
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'port.create.end',
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'port.update.end',
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'port.delete.end']
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def __init__(self, topic=topics.DHCP_AGENT):
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super(DhcpAgentNotifyAPI, self).__init__(
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topic=topic, default_version=self.BASE_RPC_API_VERSION)
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def _notification(self, context, method, payload):
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"""Notify all the agents that are hosting the network"""
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# By now, we have no scheduling feature, so we fanout
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# to all of the DHCP agents
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self._notification_fanout(context, method, payload)
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def _notification_fanout(self, context, method, payload):
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"""Fanout the payload to all dhcp agents"""
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self.fanout_cast(
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context, self.make_msg(method,
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payload=payload),
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topic=topics.DHCP_AGENT)
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def notify(self, context, data, methodname):
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# data is {'key' : 'value'} with only one key
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if methodname not in self.VALID_METHOD_NAMES:
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return
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obj_type = data.keys()[0]
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if obj_type not in self.VALID_RESOURCES:
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return
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obj_value = data[obj_type]
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methodname = methodname.replace(".", "_")
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if methodname.endswith("_delete_end"):
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if 'id' in obj_value:
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self._notification(context, methodname,
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{obj_type + '_id': obj_value['id']})
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else:
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self._notification(context, methodname, data)
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