40 lines
1.2 KiB
Python
40 lines
1.2 KiB
Python
from typing import Set
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from sanic.models.futures import FutureException
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class ExceptionMixin:
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def __init__(self, *args, **kwargs) -> None:
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self._future_exceptions: Set[FutureException] = set()
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def _apply_exception_handler(self, handler: FutureException):
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raise NotImplementedError # noqa
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def exception(self, *exceptions, apply=True):
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"""
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This method enables the process of creating a global exception
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handler for the current blueprint under question.
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:param args: List of Python exceptions to be caught by the handler
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:param kwargs: Additional optional arguments to be passed to the
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exception handler
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:return a decorated method to handle global exceptions for any
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route registered under this blueprint.
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"""
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def decorator(handler):
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nonlocal apply
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nonlocal exceptions
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if isinstance(exceptions[0], list):
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exceptions = tuple(*exceptions)
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future_exception = FutureException(handler, exceptions)
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self._future_exceptions.add(future_exception)
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if apply:
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self._apply_exception_handler(future_exception)
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return handler
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return decorator
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