shunping commented on code in PR #33845:
URL: https://github.com/apache/beam/pull/33845#discussion_r1947182434
##########
sdks/python/apache_beam/ml/anomaly/specifiable.py:
##########
@@ -30,67 +34,119 @@
from typing_extensions import Self
+__all__ = ["KNOWN_SPECIFIABLE", "Spec", "Specifiable", "specifiable"]
+
ACCEPTED_SPECIFIABLE_SUBSPACES = [
"EnsembleAnomalyDetector",
"AnomalyDetector",
"ThresholdFn",
"AggregationFn",
"*"
]
+
+#: A nested dictionary for efficient lookup of Specifiable subclasses.
+#: Structure: KNOWN_SPECIFIABLE[subspace][spec_type], where "subspace" is one
of
+#: the accepted subspaces that the class belongs to and "spec_type" is the
class
+#: name by default. Users can also specify a different value for "spec_type"
+#: when applying the `specifiable` decorator to an existing class.
KNOWN_SPECIFIABLE = {"*": {}}
SpecT = TypeVar('SpecT', bound='Specifiable')
-def get_subspace(cls, type=None):
- if type is None:
- subspace = "*"
- for c in cls.mro():
- if c.__name__ in ACCEPTED_SPECIFIABLE_SUBSPACES:
- subspace = c.__name__
- break
- return subspace
- else:
- for subspace in ACCEPTED_SPECIFIABLE_SUBSPACES:
- if subspace in KNOWN_SPECIFIABLE and type in KNOWN_SPECIFIABLE[subspace]:
- return subspace
+def _class_to_subspace(cls: Type, default="*") -> str:
+ """
+ Search the class hierarchy to find the subspace: the closest ancestor class
in
+ the class's method resolution order (MRO) whose name is found in the accepted
+ subspace list. This is usually called when registering a new Specifiable
+ class.
+ """
+ for c in cls.mro():
+ #
+ if c.__name__ in ACCEPTED_SPECIFIABLE_SUBSPACES:
+ return c.__name__
+
+ if default is None:
Review Comment:
I just got it removed but I am happy to put it back then.
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