dabla commented on code in PR #60152:
URL: https://github.com/apache/airflow/pull/60152#discussion_r2712646874


##########
airflow-core/src/airflow/jobs/triggerer_job_runner.py:
##########
@@ -1066,46 +1066,78 @@ async def cleanup_finished_triggers(self) -> list[int]:
             await asyncio.sleep(0)
         return finished_ids
 
-    async def sync_state_to_supervisor(self, finished_ids: list[int]):
+    def process_trigger_events(self, finished_ids: list[int]) -> 
messages.TriggerStateChanges:
         # Copy out of our dequeues in threadsafe manner to sync state with 
parent
-        events_to_send = []
+        events_to_send: list[tuple[int, DiscrimatedTriggerEvent]] = []
+        failures_to_send: list[tuple[int, list[str] | None]] = []
+
         while self.events:
-            data = self.events.popleft()
-            events_to_send.append(data)
+            trigger_id, trigger_event = self.events.popleft()
+            events_to_send.append((trigger_id, trigger_event))
 
-        failures_to_send = []
         while self.failed_triggers:
-            id, exc = self.failed_triggers.popleft()
+            trigger_id, exc = self.failed_triggers.popleft()
             tb = format_exception(type(exc), exc, exc.__traceback__) if exc 
else None
-            failures_to_send.append((id, tb))
+            failures_to_send.append((trigger_id, tb))
 
-        msg = messages.TriggerStateChanges(
-            events=events_to_send, finished=finished_ids, 
failures=failures_to_send
+        return messages.TriggerStateChanges(
+            events=events_to_send if events_to_send else None,
+            finished=finished_ids if finished_ids else None,
+            failures=failures_to_send if failures_to_send else None,
         )
 
-        if not events_to_send:
-            msg.events = None
+    def sanitize_trigger_events(self, msg: messages.TriggerStateChanges) -> 
messages.TriggerStateChanges:
+        req_encoder = _new_encoder()
+        events_to_send: list[tuple[int, DiscrimatedTriggerEvent]] = []
+
+        if msg.events:
+            for trigger_id, trigger_event in msg.events:
+                try:
+                    req_encoder.encode(trigger_event)
+                except Exception as e:
+                    logger.error(
+                        "Trigger %s returned non-serializable result %r. 
Cancelling trigger.",
+                        trigger_id,
+                        trigger_event,
+                    )
+                    self.failed_triggers.append((trigger_id, e))
+                else:
+                    events_to_send.append((trigger_id, trigger_event))
 
-        if not failures_to_send:
-            msg.failures = None
+        return messages.TriggerStateChanges(
+            events=events_to_send if events_to_send else None,
+            finished=msg.finished,
+            failures=msg.failures,
+        )
 
-        if not finished_ids:
-            msg.finished = None
+    async def sync_state_to_supervisor(self, finished_ids: list[int]) -> None:
+        msg = self.process_trigger_events(finished_ids=finished_ids)
 
         # Tell the monitor that we've finished triggers so it can update things
         try:
-            resp = await self.comms_decoder.asend(msg)
+            resp = await self.asend(msg)

Review Comment:
   I refactored it as agreed with @ashb , so I think we can merge it right?



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