utils.py 文件源码

def mqtt_connect(mqtt_client, core_info):
    connected = False

    # try connecting to all connectivity info objects in the list
    for connectivity_info in core_info.connectivityInfoList:
        core_host = connectivity_info.host
        core_port = connectivity_info.port
        logging.info("Connecting to Core at {0}:{1}".format(
            core_host, core_port))
        mqtt_client.configureEndpoint(core_host, core_port)
        try:
            mqtt_client.connect()
            connected = True
            break
        except socket.error as se:
            print("SE:{0}".format(se))
        except operationTimeoutException as te:
            print("operationTimeoutException:{0}".format(te.message))
            traceback.print_tb(te, limit=25)
        except Exception as e:
            print("Exception caught:{0}".format(e.message))

    return connected