580b47e54f
RPC has a version of itself. In Neutron a plugin implements several RPC interface, so a single RPC version doesn't work. In Mixin callback class approach, RPC versioning depends on each plugin implementation and it makes harder to maintain RPC version appropriately. This patch series replaces mixin RPC callback of server side with a separate class. This commit handles server-side callback of dhcp-agent RPC interface. DHCP-agent server-side callback class is moved from db/ to api/rpc/handlers because it doesn't involve any db operations and defining all RPC interfaces in a single place sounds reasonable. Note that moving other DHCP-agent related RPC interface class to api/rpc/handlers can be done in a separate patch as this patch focuses on reorganizing the server-side RPC callback class. Partial-Bug: #1359416 Change-Id: Ifb2a1bc0b7971995aae2856c9d4cd88c6dbc22d6
100 lines
3.7 KiB
Python
100 lines
3.7 KiB
Python
# Copyright 2013 Cloudbase Solutions SRL
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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# @author: Alessandro Pilotti, Cloudbase Solutions Srl
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from neutron.common import constants as q_const
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from neutron.common import rpc as n_rpc
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from neutron.openstack.common import log as logging
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from neutron.plugins.hyperv import db as hyperv_db
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LOG = logging.getLogger(__name__)
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class HyperVRpcCallbacks(n_rpc.RpcCallback):
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# history
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# 1.1 Support Security Group RPC
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# 1.2 Support get_devices_details_list
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RPC_API_VERSION = '1.2'
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def __init__(self, notifier):
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super(HyperVRpcCallbacks, self).__init__()
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self.notifier = notifier
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self._db = hyperv_db.HyperVPluginDB()
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def get_device_details(self, rpc_context, **kwargs):
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"""Agent requests device details."""
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agent_id = kwargs.get('agent_id')
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device = kwargs.get('device')
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LOG.debug(_("Device %(device)s details requested from %(agent_id)s"),
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{'device': device, 'agent_id': agent_id})
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port = self._db.get_port(device)
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if port:
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binding = self._db.get_network_binding(None, port['network_id'])
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entry = {'device': device,
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'network_id': port['network_id'],
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'port_id': port['id'],
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'admin_state_up': port['admin_state_up'],
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'network_type': binding.network_type,
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'segmentation_id': binding.segmentation_id,
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'physical_network': binding.physical_network}
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# Set the port status to UP
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self._db.set_port_status(port['id'], q_const.PORT_STATUS_ACTIVE)
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else:
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entry = {'device': device}
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LOG.debug(_("%s can not be found in database"), device)
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return entry
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def get_devices_details_list(self, rpc_context, **kwargs):
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return [
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self.get_device_details(
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rpc_context,
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device=device,
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**kwargs
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)
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for device in kwargs.pop('devices', [])
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]
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def update_device_down(self, rpc_context, **kwargs):
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"""Device no longer exists on agent."""
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# TODO(garyk) - live migration and port status
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agent_id = kwargs.get('agent_id')
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device = kwargs.get('device')
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LOG.debug(_("Device %(device)s no longer exists on %(agent_id)s"),
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{'device': device, 'agent_id': agent_id})
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port = self._db.get_port(device)
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if port:
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entry = {'device': device,
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'exists': True}
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# Set port status to DOWN
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self._db.set_port_status(port['id'], q_const.PORT_STATUS_DOWN)
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else:
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entry = {'device': device,
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'exists': False}
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LOG.debug(_("%s can not be found in database"), device)
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return entry
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def tunnel_sync(self, rpc_context, **kwargs):
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"""Tunnel sync.
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Dummy function for ovs agent running on Linux to
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work with Hyper-V plugin and agent.
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"""
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entry = dict()
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entry['tunnels'] = {}
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# Return the list of tunnels IP's to the agent
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return entry
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