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import grpc, logging
from concurrent import futures
from p4.v1 import p4runtime_pb2_grpc
from .Device_P4 import(
DEVICE_P4_ADDRESS, DEVICE_P4_PORT,
DEVICE_P4_WORKERS, DEVICE_P4_GRACE_PERIOD)
from .MockP4RuntimeServicerImpl import MockP4RuntimeServicerImpl
LOGGER = logging.getLogger(__name__)
class MockP4RuntimeService:
def __init__(
self, address=DEVICE_P4_ADDRESS, port=DEVICE_P4_PORT,
max_workers=DEVICE_P4_WORKERS,
grace_period=DEVICE_P4_GRACE_PERIOD):
self.address = address
self.port = port
self.endpoint = '{:s}:{:s}'.format(str(self.address), str(self.port))
self.max_workers = max_workers
self.grace_period = grace_period
self.pool = None
self.server = None
self.servicer = None
def start(self):
LOGGER.info(
'Starting P4Runtime service on {:s} with max_workers: {:s})'.format(
str(self.endpoint), str(self.max_workers)))
self.pool = futures.ThreadPoolExecutor(max_workers=self.max_workers)
self.server = grpc.server(self.pool)
self.servicer = MockP4RuntimeServicerImpl()
p4runtime_pb2_grpc.add_P4RuntimeServicer_to_server(
self.servicer, self.server)
_ = self.server.add_insecure_port(self.endpoint)
LOGGER.info('Listening on {:s}...'.format(str(self.endpoint)))
self.server.start()
LOGGER.debug('P4Runtime service started')
def stop(self):
LOGGER.debug(
'Stopping P4Runtime service (grace period {:s} seconds)...'.format(
str(self.grace_period)))
self.server.stop(self.grace_period)
LOGGER.debug('P4Runtime service stopped')