Newer
Older
# Copyright 2022-2024 ETSI OSG/SDG TeraFlowSDN (TFS) (https://tfs.etsi.org/)
#
# 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.
from typing import Iterator
import grpc, logging
from common.Constants import ServiceNameEnum
from common.Settings import get_service_host, get_service_port_grpc
Shayan Hajipour
committed
from common.proto.context_pb2 import Empty, QoSProfileId
from common.proto.qos_profile_pb2 import QoSProfile, QoDConstraintsRequest
from common.proto.context_pb2 import Constraint
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
from common.proto.qos_profile_pb2_grpc import QoSProfileServiceStub
from common.tools.client.RetryDecorator import retry, delay_exponential
from common.tools.grpc.Tools import grpc_message_to_json_string
LOGGER = logging.getLogger(__name__)
MAX_RETRIES = 15
DELAY_FUNCTION = delay_exponential(initial=0.01, increment=2.0, maximum=5.0)
RETRY_DECORATOR = retry(max_retries=MAX_RETRIES, delay_function=DELAY_FUNCTION, prepare_method_name='connect')
class QoSProfileClient:
def __init__(self, host=None, port=None):
if not host: host = get_service_host(ServiceNameEnum.QOSPROFILE)
if not port: port = get_service_port_grpc(ServiceNameEnum.QOSPROFILE)
self.endpoint = '{:s}:{:s}'.format(str(host), str(port))
LOGGER.debug('Creating channel to {:s}...'.format(str(self.endpoint)))
self.channel = None
self.stub = None
self.connect()
LOGGER.debug('Channel created')
def connect(self):
self.channel = grpc.insecure_channel(self.endpoint)
self.stub = QoSProfileServiceStub(self.channel)
def close(self):
if self.channel is not None: self.channel.close()
self.channel = None
self.stub = None
@RETRY_DECORATOR
def CreateQoSProfile(self, request: QoSProfile) -> QoSProfile:
LOGGER.debug('CreateQoSProfile request: {:s}'.format(grpc_message_to_json_string(request)))
response = self.stub.CreateQoSProfile(request)
LOGGER.debug('CreateQoSProfile result: {:s}'.format(grpc_message_to_json_string(response)))
return response
@RETRY_DECORATOR
def UpdateQoSProfile(self, request: QoSProfile) -> QoSProfile:
LOGGER.debug('UpdateQoSProfile request: {:s}'.format(grpc_message_to_json_string(request)))
response = self.stub.UpdateQoSProfile(request)
LOGGER.debug('UpdateQoSProfile result: {:s}'.format(grpc_message_to_json_string(response)))
return response
@RETRY_DECORATOR
def DeleteQoSProfile(self, request: QoSProfileId) -> Empty:
LOGGER.debug('DeleteQoSProfile request: {:s}'.format(grpc_message_to_json_string(request)))
response = self.stub.DeleteQoSProfile(request)
LOGGER.debug('DeleteQoSProfile result: {:s}'.format(grpc_message_to_json_string(response)))
return response
@RETRY_DECORATOR
def GetQoSProfile(self, request: QoSProfileId) -> QoSProfile:
LOGGER.debug('GetQoSProfile request: {:s}'.format(grpc_message_to_json_string(request)))
response = self.stub.GetQoSProfile(request)
LOGGER.debug('GetQoSProfile result: {:s}'.format(grpc_message_to_json_string(response)))
return response
@RETRY_DECORATOR
def GetQoSProfiles(self, request: Empty) -> Iterator[QoSProfile]:
LOGGER.debug('GetQoSProfiles request: {:s}'.format(grpc_message_to_json_string(request)))
response = self.stub.GetQoSProfiles(request)
LOGGER.debug('GetQoSProfiles result: {:s}'.format(grpc_message_to_json_string(response)))
return response
@RETRY_DECORATOR
def GetConstraintListFromQoSProfile(self, request: QoDConstraintsRequest) -> Iterator[Constraint]:
LOGGER.debug('GetConstraintListFromQoSProfile request: {:s}'.format(grpc_message_to_json_string(request)))
response = self.stub.GetConstraintListFromQoSProfile(request)
LOGGER.debug('GetConstraintListFromQoSProfile result: {:s}'.format(grpc_message_to_json_string(response)))
return response