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68 lines
2.1 KiB
68 lines
2.1 KiB
2 years ago
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from attr import attrs, attrib
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from typing import TypeVar, Optional, Callable, Union
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_function = TypeVar("_function", bound=Callable[..., object])
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_exceptions = TypeVar("_exceptions", bound=Optional[Union[type, tuple, list]])
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@attrs
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class ExceptionDecorator:
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"""
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Decorator factory for catching exceptions and writing logs
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"""
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exception: Optional[_exceptions] = attrib(default=None)
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_default_exception: Optional[_exceptions] = attrib(
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kw_only=True,
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default=None
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)
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def __attrs_post_init__(self):
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if not self.exception:
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self.exception = self._default_exception
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def __call__(
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self,
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func: _function,
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):
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async def wrapper(*args, **kwargs):
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try:
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obj_to_return = await func(*args, **kwargs)
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return obj_to_return
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except Exception as caughtException:
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import logging
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logger = logging.getLogger("webdriver_log")
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logger.setLevel(logging.ERROR)
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handler = logging.FileHandler(".webdriver.log", mode="a+", encoding="utf-8")
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logger.addHandler(handler)
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if isinstance(self.exception, type):
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if not type(caughtException) == self.exception:
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logger.error(f"unexpected error - {caughtException}")
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else:
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if not type(caughtException) in self.exception:
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logger.error(f"unexpected error - {caughtException}")
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return wrapper
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@classmethod
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def catch_exception(
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cls,
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func: Optional[_function],
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exception: Optional[_exceptions] = None,
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) -> Union[object, _function]:
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"""
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Decorator for catching exceptions and writing logs
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Args:
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func: Function to be decorated
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exception: Expected exception(s)
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Returns:
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Decorated function
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"""
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exceptor = cls(exception)
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if func:
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exceptor = exceptor(func)
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return exceptor
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