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import grpc, logging
from common.tools.RetryDecorator import retry, delay_exponential
from service.proto.context_pb2 import Empty
from service.proto.service_pb2 import ConnectionList, Service, ServiceId, ServiceList
from service.proto.service_pb2_grpc import ServiceServiceStub
LOGGER = logging.getLogger(__name__)
MAX_RETRIES = 15
DELAY_FUNCTION = delay_exponential(initial=0.01, increment=2.0, maximum=5.0)
class ServiceClient:
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 = ServiceServiceStub(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 GetServiceList(self, request : Empty) -> ServiceList:
LOGGER.debug('GetServiceList request: {}'.format(request))
response = self.stub.GetServiceList(request)
LOGGER.debug('GetServiceList result: {}'.format(response))
return response
@retry(exceptions=set(), max_retries=MAX_RETRIES, delay_function=DELAY_FUNCTION, prepare_method_name='connect')
def CreateService(self, request : Service) -> ServiceId:
LOGGER.debug('CreateService request: {}'.format(request))
response = self.stub.CreateService(request)
LOGGER.debug('CreateService result: {}'.format(response))
return response
@retry(exceptions=set(), max_retries=MAX_RETRIES, delay_function=DELAY_FUNCTION, prepare_method_name='connect')
def UpdateService(self, request : Service) -> ServiceId:
LOGGER.debug('UpdateService request: {}'.format(request))
response = self.stub.UpdateService(request)
LOGGER.debug('UpdateService result: {}'.format(response))
return response
@retry(exceptions=set(), max_retries=MAX_RETRIES, delay_function=DELAY_FUNCTION, prepare_method_name='connect')
def DeleteService(self, request : ServiceId) -> Empty:
LOGGER.debug('DeleteService request: {}'.format(request))
response = self.stub.DeleteService(request)
LOGGER.debug('DeleteService result: {}'.format(response))
return response
@retry(exceptions=set(), max_retries=MAX_RETRIES, delay_function=DELAY_FUNCTION, prepare_method_name='connect')
def GetServiceById(self, request : ServiceId) -> Service:
LOGGER.debug('GetServiceById request: {}'.format(request))
response = self.stub.GetServiceById(request)
LOGGER.debug('GetServiceById result: {}'.format(response))
return response
@retry(exceptions=set(), max_retries=MAX_RETRIES, delay_function=DELAY_FUNCTION, prepare_method_name='connect')
def GetConnectionList(self, request : Empty) -> ConnectionList:
LOGGER.debug('GetConnectionList request: {}'.format(request))
response = self.stub.GetConnectionList(request)
LOGGER.debug('GetConnectionList result: {}'.format(response))
return response