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# Copyright 2022-2024 ETSI TeraFlowSDN - TFS OSG (https://tfs.etsi.org/)
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#
# 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.
import grpc, logging
from common.Constants import ServiceNameEnum
from common.Settings import get_service_host, get_service_port_grpc
from common.tools.client.RetryDecorator import retry, delay_exponential
from pcep.service.tools.Grpc_TestClient.grpcService_pb2 import LSPdb_Request, Session_Request
from pcep.service.tools.Grpc_TestClient.grpcService_pb2 import commandRequest
from pcep.service.tools.Grpc_TestClient.grpcService_pb2_grpc import pceServiceStub
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')
PORT = 10060
class GrpcPcepClient:
def __init__(self, host=None, port=None):
if not host: host = get_service_host(ServiceNameEnum.PCEP)
#if not port: port = get_service_port_grpc(ServiceNameEnum.PCEP)
if not port: port = PORT #Maybe should not be hardcoded
self.endpoint = '{:s}:{:s}'.format(str(host), str(port))
LOGGER.warning('Creating channel to {:s}...'.format(str(self.endpoint)))
self.channel = None
self.stub = None
self.connect()
LOGGER.warning('Channel created')
def connect(self):
#LOGGER.warning('IAM IN CONNECT')
LOGGER.warning('Creating channel to {:s}...'.format(str(self.endpoint)))
self.channel = grpc.insecure_channel(self.endpoint)
self.stub = pceServiceStub(self.channel)
LOGGER.warning('Channel created')
def close(self):
#LOGGER.warning('IAM IN CLOSE')
if self.channel is not None: self.channel.close()
self.channel = None
self.stub = None
@RETRY_DECORATOR
def showSessions(self):
LOGGER.warning("IAM IN SHOWSESSIONS")
requestsessions = Session_Request()
responsesessions = self.stub.getSessionsInfo(requestsessions)
return responsesessions
@RETRY_DECORATOR
def showLSPDB(self):
#LOGGER.warning("IAM IN SHOWLSPDB")
requestlsp = LSPdb_Request()
responselsp = self.stub.getLSPdb(requestlsp)
return responselsp
@RETRY_DECORATOR
def sendUpdate(self, data):
#LOGGER.warning("IAM IN SEND UPDATE")
commandrequest = commandRequest() # Create an instance without passing data to __init__
commandrequest.command = data
#LOGGER.warning("This is Command Request: %s", str(commandrequest))
commandresponse = self.stub.update(commandrequest)
#LOGGER.warning("This is Command Response: %s", str(commandresponse))
#LOGGER.warning("Success: %s", str(commandresponse.success))
#LOGGER.warning("Error Message: %s", str(commandresponse.error_message))
return commandresponse