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https://issues.apache.org/jira/browse/AIRFLOW-6786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17100911#comment-17100911
]
ASF GitHub Bot commented on AIRFLOW-6786:
-----------------------------------------
serkef commented on a change in pull request #7407:
URL: https://github.com/apache/airflow/pull/7407#discussion_r420895321
##########
File path: airflow/providers/apache/kafka/sensors/kafka_sensor.py
##########
@@ -0,0 +1,76 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+import logging
+
+from cached_property import cached_property
+
+from airflow.providers.apache.kafka.hooks.kafka_consumer_hook import
KafkaConsumerHook
+from airflow.sensors.base_sensor_operator import BaseSensorOperator
+from airflow.utils.decorators import apply_defaults
+
+
+class KafkaSensor(BaseSensorOperator):
+ """
+ Consumes the Kafka message with the specific topic
+ """
+ DEFAULT_HOST = 'kafka1'
Review comment:
why not localhost?
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> Adding KafkaConsumerHook, KafkaProducerHook, and KafkaSensor
> ------------------------------------------------------------
>
> Key: AIRFLOW-6786
> URL: https://issues.apache.org/jira/browse/AIRFLOW-6786
> Project: Apache Airflow
> Issue Type: New Feature
> Components: contrib, hooks
> Affects Versions: 1.10.9
> Reporter: Daniel Ferguson
> Assignee: Daniel Ferguson
> Priority: Minor
>
> Add the KafkaProducerHook.
> Add the KafkaConsumerHook.
> Add the KafkaSensor which listens to messages with a specific topic.
> Related Issue:
> #1311 (Pre-dates Jira Migration)
> Reminder to contributors:
> You must add an Apache License header to all new files
> Please squash your commits when possible and follow the 7 rules of good Git
> commits
> I am new to the community, I am not sure the files are at the right place or
> missing anything.
> The sensor could be used as the first node of a dag where the second node can
> be a TriggerDagRunOperator. The messages are polled in a batch and the dag
> runs are dynamically generated.
> Thanks!
> Note, as per denied PR [#1415|https://github.com/apache/airflow/pull/1415],
> it is important to mention these integrations are not suitable for
> low-latency/high-throughput/streaming. For reference, [#1415
> (comment)|https://github.com/apache/airflow/pull/1415#issuecomment-484429806].
> Co-authored-by: Dan Ferguson
> [dferguson...@gmail.com|mailto:dferguson...@gmail.com]
> Co-authored-by: YuanfΞi Zhu
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