# This work was created by participants in the DataONE project, and is
# jointly copyrighted by participating institutions in DataONE. For
# more information on DataONE, see our web site at http://dataone.org.
#
#   Copyright 2009-2017 DataONE
#
# 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 functools
import logging


class log_func(object):
    def __call__(self, func):
        @functools.wraps(func)
        def wrapper(*args, **kwds):
            logging.info("---> {}".format(func.__name__))
            f_result = func(*args, **kwds)
            logging.info("<--- {}".format(func.__name__))
            return f_result

        return wrapper
