Lee-W commented on code in PR #32683:
URL: https://github.com/apache/airflow/pull/32683#discussion_r1268129021


##########
airflow/providers/amazon/aws/triggers/sagemaker.py:
##########
@@ -115,3 +121,79 @@ async def run(self):
                 status_args=[self._get_response_status_key(self.job_type)],
             )
             yield TriggerEvent({"status": "success", "message": "Job 
completed."})
+
+
+class SageMakerPipelineTrigger(BaseTrigger):
+    """Trigger to wait for a sagemaker pipeline execution to finish."""
+
+    class Type(IntEnum):
+        """Type of waiter to use."""
+
+        COMPLETE = 1
+        STOPPED = 2
+
+    def __init__(
+        self,
+        waiter_type: Type,
+        pipeline_execution_arn: str,
+        waiter_delay: int,
+        waiter_max_attempts: int,
+        aws_conn_id: str,
+    ):
+        self.waiter_type = waiter_type
+        self.pipeline_execution_arn = pipeline_execution_arn
+        self.waiter_delay = waiter_delay
+        self.waiter_max_attempts = waiter_max_attempts
+        self.aws_conn_id = aws_conn_id
+
+    def serialize(self) -> tuple[str, dict[str, Any]]:
+        return (
+            "airflow.providers.amazon.aws.triggers.sagemaker.SageMakerTrigger",
+            {
+                "waiter_type": self.waiter_type.value,  # saving the int value 
here
+                "pipeline_execution_arn": self.pipeline_execution_arn,
+                "waiter_delay": self.waiter_delay,
+                "waiter_max_attempts": self.waiter_max_attempts,
+                "aws_conn_id": self.aws_conn_id,
+            },
+        )
+
+    _waiter_name = {
+        Type.COMPLETE: "PipelineExecutionComplete",
+        Type.STOPPED: "PipelineExecutionStopped",
+    }
+
+    async def run(self) -> AsyncIterator[TriggerEvent]:
+        attempts = 0
+        hook = SageMakerHook(aws_conn_id=self.aws_conn_id)
+        async with hook.async_conn as conn:
+            waiter = hook.get_waiter(self._waiter_name[self.waiter_type])
+            while attempts < self.waiter_max_attempts:
+                attempts = attempts + 1
+                try:
+                    await waiter.wait(
+                        PipelineExecutionArn=self.pipeline_execution_arn, 
WaiterConfig={"MaxAttempts": 1}
+                    )
+                    yield TriggerEvent({"status": "success", "value": 
self.pipeline_execution_arn})
+                    break  # we reach this point only if the waiter met a 
success criteria

Review Comment:
   hmmm... interesting 🤔 yep, that's something I missed. Is there a way for us 
to reproduce it?



##########
airflow/providers/amazon/aws/triggers/sagemaker.py:
##########
@@ -115,3 +121,79 @@ async def run(self):
                 status_args=[self._get_response_status_key(self.job_type)],
             )
             yield TriggerEvent({"status": "success", "message": "Job 
completed."})
+
+
+class SageMakerPipelineTrigger(BaseTrigger):
+    """Trigger to wait for a sagemaker pipeline execution to finish."""
+
+    class Type(IntEnum):
+        """Type of waiter to use."""
+
+        COMPLETE = 1
+        STOPPED = 2
+
+    def __init__(
+        self,
+        waiter_type: Type,
+        pipeline_execution_arn: str,
+        waiter_delay: int,
+        waiter_max_attempts: int,
+        aws_conn_id: str,
+    ):
+        self.waiter_type = waiter_type
+        self.pipeline_execution_arn = pipeline_execution_arn
+        self.waiter_delay = waiter_delay
+        self.waiter_max_attempts = waiter_max_attempts
+        self.aws_conn_id = aws_conn_id
+
+    def serialize(self) -> tuple[str, dict[str, Any]]:
+        return (
+            "airflow.providers.amazon.aws.triggers.sagemaker.SageMakerTrigger",
+            {
+                "waiter_type": self.waiter_type.value,  # saving the int value 
here
+                "pipeline_execution_arn": self.pipeline_execution_arn,
+                "waiter_delay": self.waiter_delay,
+                "waiter_max_attempts": self.waiter_max_attempts,
+                "aws_conn_id": self.aws_conn_id,
+            },
+        )
+
+    _waiter_name = {
+        Type.COMPLETE: "PipelineExecutionComplete",
+        Type.STOPPED: "PipelineExecutionStopped",
+    }
+
+    async def run(self) -> AsyncIterator[TriggerEvent]:
+        attempts = 0
+        hook = SageMakerHook(aws_conn_id=self.aws_conn_id)
+        async with hook.async_conn as conn:
+            waiter = hook.get_waiter(self._waiter_name[self.waiter_type])
+            while attempts < self.waiter_max_attempts:
+                attempts = attempts + 1
+                try:
+                    await waiter.wait(
+                        PipelineExecutionArn=self.pipeline_execution_arn, 
WaiterConfig={"MaxAttempts": 1}
+                    )
+                    yield TriggerEvent({"status": "success", "value": 
self.pipeline_execution_arn})
+                    break  # we reach this point only if the waiter met a 
success criteria

Review Comment:
   hmmm... interesting 🤔 yep, that's something I missed. Is there a way for us 
to reproduce it?



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