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# Copyright 2020 Google LLC
#
# 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.
"""AsyncIO helpers for wrapping gRPC methods with common functionality.
This is used by gapic clients to provide common error mapping, retry, timeout,
compression, pagination, and long-running operations to gRPC methods.
"""
import functools
from google.api_core import grpc_helpers_async
from google.api_core.gapic_v1 import client_info
from google.api_core.gapic_v1.method import _GapicCallable
from google.api_core.gapic_v1.method import DEFAULT # noqa: F401
from google.api_core.gapic_v1.method import USE_DEFAULT_METADATA # noqa: F401
def wrap_method(
func,
default_retry=None,
default_timeout=None,
default_compression=None,
client_info=client_info.DEFAULT_CLIENT_INFO,
):
"""Wrap an async RPC method with common behavior.
Returns:
Callable: A new callable that takes optional ``retry``, ``timeout``,
and ``compression`` arguments and applies the common error mapping,
retry, timeout, metadata, and compression behavior to the low-level RPC method.
"""
func = grpc_helpers_async.wrap_errors(func)
metadata = [client_info.to_grpc_metadata()] if client_info is not None else None
return functools.wraps(func)(
_GapicCallable(
func,
default_retry,
default_timeout,
default_compression,
metadata=metadata,
)
)