Andrew K. Choi
ddce9f5125
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55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
# SPDX-License-Identifier: MIT OR Apache-2.0
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# This file is dual licensed under the terms of the Apache License, Version
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# 2.0, and the MIT License. See the LICENSE file in the root of this
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# repository for complete details.
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"""
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Generic bound logger that can wrap anything.
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"""
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from __future__ import annotations
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from functools import partial
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from typing import Any
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from structlog._base import BoundLoggerBase
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class BoundLogger(BoundLoggerBase):
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"""
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A generic BoundLogger that can wrap anything.
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Every unknown method will be passed to the wrapped *logger*. If that's too
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much magic for you, try `structlog.stdlib.BoundLogger` or
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`structlog.twisted.BoundLogger` which also take advantage of knowing the
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wrapped class which generally results in better performance.
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Not intended to be instantiated by yourself. See
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:func:`~structlog.wrap_logger` and :func:`~structlog.get_logger`.
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"""
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def __getattr__(self, method_name: str) -> Any:
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"""
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If not done so yet, wrap the desired logger method & cache the result.
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"""
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if method_name == "__deepcopy__":
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return None
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wrapped = partial(self._proxy_to_logger, method_name)
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setattr(self, method_name, wrapped)
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return wrapped
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def __getstate__(self) -> dict[str, Any]:
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"""
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Our __getattr__ magic makes this necessary.
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"""
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return self.__dict__
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def __setstate__(self, state: dict[str, Any]) -> None:
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"""
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Our __getattr__ magic makes this necessary.
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"""
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for k, v in state.items():
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setattr(self, k, v)
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