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Lluis Gifre Renom
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from common.tools.client.RetryDecorator import retry, delay_exponential
from context.proto.context_pb2 import Link, LinkId, Empty, Topology
from context.proto.context_pb2_grpc import ContextServiceStub
LOGGER = logging.getLogger(__name__)
MAX_RETRIES = 15
DELAY_FUNCTION = delay_exponential(initial=0.01, increment=2.0, maximum=5.0)
class ContextClient:
def __init__(self, address, port):
self.endpoint = '{}:{}'.format(address, port)
LOGGER.debug('Creating channel to {}...'.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 = ContextServiceStub(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')
LOGGER.debug('GetTopology request: {}'.format(request))
response = self.stub.GetTopology(request)
LOGGER.debug('GetTopology result: {}'.format(response))
@retry(exceptions=set(), max_retries=MAX_RETRIES, delay_function=DELAY_FUNCTION, prepare_method_name='connect')
def AddLink(self, request : Link) -> LinkId:
LOGGER.debug('AddLink request: {}'.format(request))
response = self.stub.AddLink(request)
LOGGER.debug('AddLink result: {}'.format(response))
return response
@retry(exceptions=set(), max_retries=MAX_RETRIES, delay_function=DELAY_FUNCTION, prepare_method_name='connect')
def DeleteLink(self, request : LinkId) -> Empty:
LOGGER.debug('DeleteLink request: {}'.format(request))
response = self.stub.DeleteLink(request)
LOGGER.debug('DeleteLink result: {}'.format(response))
return response