LaPetiteSouris commented on code in PR #24554:
URL: https://github.com/apache/airflow/pull/24554#discussion_r902560389
##########
airflow/providers/amazon/aws/sensors/sqs.py:
##########
@@ -215,3 +226,65 @@ 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``.
+ The total number of messages retrieved at maxium will be equal to the
number of messages retrived for each
+ SQS's API call multiplies with total number of call. Each SQS
receive_message can get a max 10 messages.
+ This sensor is identical to SQSSensor, except the fact that SQSSensor
performs one and only one SQS call
+ per poke, while SQSBatchSensor performs multiple SQS API calls per poke.
+ .. seealso::
+ For more information on how to use this sensor, take a look at the
guide:
+ :ref:`howto/sensor:SqsBatchSensor`
+ :param batch: The number of time the sensor will call the SQS to receive
messages (default: 1)
+ """
+
+ def __init__(
+ self,
+ *,
+ batch: int = 1,
+ **kwargs,
+ ):
+ super().__init__(**kwargs)
+ self.batch = batch
+
+ def poke(self, context: 'Context'):
+ """
+ Check for message on subscribed queue and write to xcom the message
with key ``messages``
+ :param context: the context object
+ :return: ``True`` if message is available or ``False``
+ """
+ sqs_conn = self.get_hook().get_conn()
+ message_batch = []
+ # perform multiple SQS call to retrieve messages in series
+ for _ in range(self.batch):
Review Comment:
changed to `num_batches`
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