uranusjr commented on code in PR #25355:
URL: https://github.com/apache/airflow/pull/25355#discussion_r932050196
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airflow/models/expandinput.py:
##########
@@ -245,12 +245,20 @@ def get_total_map_length(self, run_id: str, *, session:
Session) -> int:
raise NotFullyPopulated({"expand_kwargs() argument"})
return value
- def resolve(self, context: Context, session: Session) -> dict[str, Any]:
+ def resolve(self, context: Context, session: Session) -> Mapping[str, Any]:
map_index = context["ti"].map_index
if map_index < 0:
raise RuntimeError("can't resolve task-mapping argument without
expanding")
- # Validation should be done when the upstream returns.
- return self.value.resolve(context, session)[map_index]
+ mappings = self.value.resolve(context, session)
+ if not isinstance(mappings, collections.abc.Sequence):
+ raise ValueError(f"expand_kwargs() expects a list[dict], not
{type(mappings).__name__}")
+ mapping = mappings[map_index]
+ if not isinstance(mapping, collections.abc.Mapping):
+ raise ValueError(f"expand_kwargs() expects a list[dict], not
list[{type(mapping).__name__}]")
+ for key in mapping:
+ if not isinstance(key, str):
+ raise ValueError(f"expand_kwargs() input dict keys must be
str, not {type(key).__name__}")
Review Comment:
No because that can potentially be a huge list.
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