22 lines
570 B
Python
22 lines
570 B
Python
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class DispatcherError(Exception):
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pass
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class Dispatcher:
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def __init__(self):
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self._paths = {}
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def register(self, path, callback):
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if path in self._paths:
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raise ValueError(
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f"Attempted to register duplicate path {path} in dispatcher."
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)
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self._paths[path] = callback
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def invoke(self, path, *args, **kwargs):
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if path not in self._paths:
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raise DispatcherError(
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f"Path {path} is undefined."
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)
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return self._paths[path](*args, **kwargs)
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