FateWithShellmiaoComment/Fate/python/fate_arch/federation/_nretry.py

#
#  Copyright 2022 The FATE Authors. All Rights Reserved.
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
#

import time

from fate_arch.common.log import getLogger

LOGGER = getLogger()


def nretry(func):
    """retry connection
    """

    def wrapper(self, *args, **kwargs):
        """wrapper
        """
        res = None
        exception = None
        for ntry in range(10):
            try:
                res = func(self, *args, **kwargs)
                exception = None
                break
            except Exception as e:
                LOGGER.error("function %s error" % func.__name__, exc_info=True)
                exception = e
                time.sleep(1)

        if exception is not None:
            LOGGER.debug(
                f"failed",
                exc_info=exception)
            raise exception

        return res

    return wrapper