flwr.simulation.simulationio_connection의 소스 코드

# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
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# Licensed under the Apache License, Version 2.0 (the "License");
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#     http://www.apache.org/licenses/LICENSE-2.0
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"""Flower SimulationIo connection."""


from logging import DEBUG, WARNING
from typing import Optional, cast

import grpc

from flwr.common.constant import SIMULATIONIO_API_DEFAULT_ADDRESS
from flwr.common.grpc import create_channel
from flwr.common.logger import log
from flwr.proto.simulationio_pb2_grpc import SimulationIoStub  # pylint: disable=E0611


[문서] class SimulationIoConnection: """`SimulationIoConnection` provides an interface to the SimulationIo API. Parameters ---------- simulationio_service_address : str (default: "[::]:9094") The address (URL, IPv6, IPv4) of the SuperLink SimulationIo API service. root_certificates : Optional[bytes] (default: None) The PEM-encoded root certificates as a byte string. If provided, a secure connection using the certificates will be established to an SSL-enabled Flower server. """ def __init__( # pylint: disable=too-many-arguments self, simulationio_service_address: str = SIMULATIONIO_API_DEFAULT_ADDRESS, root_certificates: Optional[bytes] = None, ) -> None: self._addr = simulationio_service_address self._cert = root_certificates self._grpc_stub: Optional[SimulationIoStub] = None self._channel: Optional[grpc.Channel] = None @property def _is_connected(self) -> bool: """Check if connected to the SimulationIo API server.""" return self._channel is not None @property def _stub(self) -> SimulationIoStub: """SimulationIo stub.""" if not self._is_connected: self._connect() return cast(SimulationIoStub, self._grpc_stub) def _connect(self) -> None: """Connect to the SimulationIo API.""" if self._is_connected: log(WARNING, "Already connected") return self._channel = create_channel( server_address=self._addr, insecure=(self._cert is None), root_certificates=self._cert, ) self._grpc_stub = SimulationIoStub(self._channel) log(DEBUG, "[SimulationIO] Connected to %s", self._addr) def _disconnect(self) -> None: """Disconnect from the SimulationIo API.""" if not self._is_connected: log(DEBUG, "Already disconnected") return channel: grpc.Channel = self._channel self._channel = None self._grpc_stub = None channel.close() log(DEBUG, "[SimulationIO] Disconnected")