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