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#
# Copyright 2016 the original author or authors.
#
# 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.
#
"""
The gRPC client layer for the OpenFlow agent
"""
from twisted.internet import threads
from twisted.internet.defer import inlineCallbacks, returnValue
from protos.voltha_pb2 import ID, VolthaLogicalLayerStub, FlowTableUpdate
class GrpcClient(object):
def __init__(self, channel, device_id_map):
self.channel = channel
self.device_id_map = device_id_map
self.logical_stub = VolthaLogicalLayerStub(channel)
@inlineCallbacks
def get_port_list(self, datapath_id):
device_id = self.device_id_map[datapath_id]
req = ID(id=device_id)
res = yield threads.deferToThread(
self.logical_stub.ListLogicalDevicePorts, req)
returnValue(res.items)
@inlineCallbacks
def get_device_info(self, datapath_id):
device_id = self.device_id_map[datapath_id]
req = ID(id=device_id)
res = yield threads.deferToThread(
self.logical_stub.GetLogicalDevice, req)
returnValue(res)
@inlineCallbacks
def update_flow_table(self, datapath_id, flow_mod):
device_id = self.device_id_map[datapath_id]
req = FlowTableUpdate(
id=device_id,
flow_mod=flow_mod
)
res = yield threads.deferToThread(
self.logical_stub.UpdateFlowTable, req)
returnValue(res)
@inlineCallbacks
def list_flows(self, datapath_id):
device_id = self.device_id_map[datapath_id]
req = ID(id=device_id)
res = yield threads.deferToThread(
self.logical_stub.ListDeviceFlows, req)
returnValue(res.items)