1 # Copyright (C) 2013 eNovance SAS <licensing@enovance.com>
3 # Licensed under the Apache License, Version 2.0 (the "License"); you may
4 # not use this file except in compliance with the License. You may obtain
5 # a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
11 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12 # License for the specific language governing permissions and limitations
15 from neutron.api.rpc.agentnotifiers import metering_rpc_agent_api
16 from neutron.common import rpc as n_rpc
17 from neutron.common import topics
18 from neutron.db.metering import metering_db
19 from neutron.db.metering import metering_rpc
22 class MeteringPlugin(metering_db.MeteringDbMixin):
23 """Implementation of the Neutron Metering Service Plugin."""
24 supported_extension_aliases = ["metering"]
25 path_prefix = "/metering"
28 super(MeteringPlugin, self).__init__()
30 self.meter_rpc = metering_rpc_agent_api.MeteringAgentNotifyAPI()
31 self.start_rpc_listeners()
33 def start_rpc_listeners(self):
34 self.endpoints = [metering_rpc.MeteringRpcCallbacks(self)]
35 self.conn = n_rpc.create_connection()
36 self.conn.create_consumer(
37 topics.METERING_PLUGIN, self.endpoints, fanout=False)
38 return self.conn.consume_in_threads()
40 def create_metering_label(self, context, metering_label):
41 label = super(MeteringPlugin, self).create_metering_label(
42 context, metering_label)
44 data = self.get_sync_data_metering(context)
45 self.meter_rpc.add_metering_label(context, data)
49 def delete_metering_label(self, context, label_id):
50 data = self.get_sync_data_metering(context, label_id)
51 label = super(MeteringPlugin, self).delete_metering_label(
54 self.meter_rpc.remove_metering_label(context, data)
58 def create_metering_label_rule(self, context, metering_label_rule):
59 rule = super(MeteringPlugin, self).create_metering_label_rule(
60 context, metering_label_rule)
62 data = self.get_sync_data_for_rule(context, rule)
63 self.meter_rpc.add_metering_label_rule(context, data)
67 def delete_metering_label_rule(self, context, rule_id):
68 rule = super(MeteringPlugin, self).delete_metering_label_rule(
71 data = self.get_sync_data_for_rule(context, rule)
72 self.meter_rpc.remove_metering_label_rule(context, data)