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import grpc, logging
from common.tools.client.RetryDecorator import retry, delay_exponential
from interdomain.proto.context_pb2 import TeraFlowController, AuthenticationResult
from interdomain.proto.slice_pb2 import TransportSlice, SliceId
from interdomain.proto.interdomain_pb2_grpc import InterdomainServiceStub
LOGGER = logging.getLogger(__name__)
MAX_RETRIES = 15
DELAY_FUNCTION = delay_exponential(initial=0.01, increment=2.0, maximum=5.0)
class InterdomainClient:
def __init__(self, address, port):
self.endpoint = '{:s}:{:s}'.format(str(address), str(port))
LOGGER.debug('Creating channel to {:s}...'.format(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 = InterdomainServiceStub(self.channel)
def close(self):
if self.channel is not None: self.channel.close()
self.channel = None
self.stub = None
@retry(exceptions=set(), max_retries=MAX_RETRIES, delay_function=DELAY_FUNCTION, prepare_method_name='connect')
def Authenticate(self, request : TeraFlowController) -> AuthenticationResult:
LOGGER.debug('Authenticate request: {:s}'.format(str(request)))
response = self.stub.Authenticate(request)
LOGGER.debug('Authenticate result: {:s}'.format(str(response)))
return response
@retry(exceptions=set(), max_retries=MAX_RETRIES, delay_function=DELAY_FUNCTION, prepare_method_name='connect')
def LookUpSlice(self, request : TransportSlice) -> SliceId:
LOGGER.debug('LookUpSlice request: {:s}'.format(str(request)))
response = self.stub.LookUpSlice(request)
LOGGER.debug('LookUpSlice result: {:s}'.format(str(response)))
return response
@retry(exceptions=set(), max_retries=MAX_RETRIES, delay_function=DELAY_FUNCTION, prepare_method_name='connect')
def OrderSliceFromCatalog(self, request : TransportSlice) -> SliceStatus:
LOGGER.debug('OrderSliceFromCatalog request: {:s}'.format(str(request)))
response = self.stub.OrderSliceFromCatalog(request)
LOGGER.debug('OrderSliceFromCatalog result: {:s}'.format(str(response)))
return response
@retry(exceptions=set(), max_retries=MAX_RETRIES, delay_function=DELAY_FUNCTION, prepare_method_name='connect')
def CreateSliceAndAddToCatalog(self, request : TransportSlice) -> SliceStatus:
LOGGER.debug('CreateSliceAndAddToCatalog request: {:s}'.format(str(request)))
response = self.stub.CreateSliceAndAddToCatalog(request)
LOGGER.debug('CreateSliceAndAddToCatalog result: {:s}'.format(str(response)))
return response