eladkal commented on code in PR #24554:
URL: https://github.com/apache/airflow/pull/24554#discussion_r902981513
##########
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)
+ """
+
+ def __init__(
+ self,
+ *,
+ num_batches: int = 1,
+ **kwargs,
+ ):
+ super().__init__(**kwargs)
+ self.num_batches = num_batches
+
+ def poke(self, context: 'Context'):
+ """
+ Check subscribed queue for messages and write them to xcom with the
``messages`` key.
+
+ :param context: the context object
+ :return: ``True`` if message is available or ``False``
+ """
+ sqs_conn = self.get_hook().get_conn()
+ message_batch: List[Any] = []
+ # perform multiple SQS call to retrieve messages in series
+ for _ in range(self.num_batches):
+ messages = self.poll_sqs(sqs_conn=sqs_conn)
+
+ if not len(messages):
+ continue
+
+ message_batch.extend(messages)
+
+ if self.delete_message_on_reception:
+
+ self.log.info("Deleting %d messages", len(messages))
+
+ entries = [
+ {'Id': message['MessageId'], 'ReceiptHandle':
message['ReceiptHandle']}
+ for message in messages
+ ]
+ response =
sqs_conn.delete_message_batch(QueueUrl=self.sqs_queue, Entries=entries)
+
+ if 'Successful' not in response:
+ raise AirflowException(
+ 'Delete SQS Messages failed ' + str(response) + ' for
messages ' + str(messages)
+ )
+ if not len(message_batch):
+ return False
Review Comment:
Great so resolving this one
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