kacpermuda commented on code in PR #65727:
URL: https://github.com/apache/airflow/pull/65727#discussion_r3160643532
##########
providers/openlineage/src/airflow/providers/openlineage/utils/utils.py:
##########
@@ -862,10 +878,81 @@ class TaskInstanceInfo(InfoJsonEncodable):
class AssetInfo(InfoJsonEncodable):
- """Defines encoding Airflow Asset object to JSON."""
+ """
+ Defines encoding Airflow Asset object to JSON.
+
+ Output shape: ``{"uri", "extra", "type"[, "source_alias"]}``.
+ ``type`` distinguishes how the asset showed up on the task:
+
+ * ``"asset"`` - statically declared on ``task.outlets`` / ``task.inlets``.
+ * ``"asset_event"`` — emitted dynamically via
``outlet_events[asset].extra``.
+ * ``"asset_event_from_alias"`` — resolved at runtime from an ``AssetAlias``
+ via ``outlet_events[alias].add(asset, ...)``; ``source_alias`` then
carries the alias name.
+
+ ``AssetAlias`` are intentionally NOT included - they are just helpers with
no URI of their own.
+ """
includes = ["uri", "extra"]
+ def __init__(self, obj, asset_type: str = "asset", source_alias: str |
None = None):
+ self.type = asset_type
+ self.source_alias = source_alias
+ super().__init__(obj)
+
+ def _extend_fields(self) -> None:
+ if self.type:
+ self._fields.append("type")
+ if self.source_alias:
+ self._fields.append("source_alias")
+
+
+def get_runtime_outlet_assets(task_instance) -> list[tuple[Asset, AssetAlias |
None]]:
+ """
+ Return ``(asset, alias)`` pairs for every runtime-attached outlet.
+
+ * ``outlet_events[AssetAlias].add(asset, ...)`` → ``(asset, alias)``.
+ * ``outlet_events[Asset].extra = {...}`` → ``(asset, None)``.
+
+ Empty list on AF2 or when ``task_instance`` is not an AF3
``RuntimeTaskInstance``
+ (scheduler / API-server path has no usable worker template context).
+ """
+ if not AIRFLOW_V_3_0_PLUS:
+ return []
+ try:
+ from airflow.sdk.execution_time.task_runner import RuntimeTaskInstance
+ except ImportError:
+ return []
+ if not isinstance(task_instance, RuntimeTaskInstance):
+ return []
+ if not hasattr(task_instance, "get_template_context"):
+ return []
+ outlet_events = task_instance.get_template_context().get("outlet_events")
+ if outlet_events is None:
+ return []
+ results: list[tuple[Asset, AssetAlias | None]] = []
+ for key in outlet_events:
+ accessor = outlet_events[key]
+ if isinstance(key, AssetAlias):
+ for event in getattr(accessor, "asset_alias_events", []) or []:
+ # ``dest_asset_extra`` was introduced in Airflow 3.1.4 ; on
+ # earlier versions the alias event carries only ``extra``.
+ dest_asset_extra = getattr(event, "dest_asset_extra", None) or
{}
+ results.append(
+ (
+ Asset(
+ name=event.dest_asset_key.name,
+ uri=event.dest_asset_key.uri,
+ # Per-event extra wins over asset-level extra.
Review Comment:
Removed !
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