o-nikolas commented on code in PR #24554:
URL: https://github.com/apache/airflow/pull/24554#discussion_r902954192
##########
airflow/providers/amazon/aws/sensors/sqs.py:
##########
@@ -215,3 +229,68 @@ def __init__(self, *args, **kwargs):
stacklevel=2,
)
super().__init__(*args, **kwargs)
+
+
+class SqsBatchSensor(SqsSensor):
+ """
+ Get messages from an Amazon SQS queue in batches and then delete the
retrieved messages from the queue.
+ If deletion of messages fails an AirflowException is thrown. Otherwise,
all messages
+ are pushed through XCom with the key ``messages``.
+
+ This sensor is identical to SqsSensor, except that SqsSensor performs one
and only one SQS call
+ per poke, which limits the result to a maximum of 10 messages, while
SqsBatchSensor performs multiple
+ SQS API calls per poke and combines the results into one list.
+
+ .. seealso::
+ For more information on how to use this sensor, take a look at the
guide:
+ :ref:`howto/sensor:SqsBatchSensor`
+
+ :param num_batches: The number of times the sensor will call the SQS API
to receive messages (default: 1)
Review Comment:
The default behaviour of this class effectively mimics the `SqsSensor` and
much of the poke method below is duplicate code from the `SqsSensor.poke`
except wrapped in a for loop.
Do we really need this new class? It might be more straightforward and less
duplicate code to just add `num_batches` to `SqsSensor` (with a default of 1 to
maintain current behaviour) as a new optional kwarg and teach `SqsSensor` to do
batches.
WDYT?
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