Robert Metzger created FLINK-3524:
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Summary: Provide a JSONSerialisationSchema in the kafka connector
package
Key: FLINK-3524
URL: https://issues.apache.org/jira/browse/FLINK-3524
Project: Flink
Issue Type: Improvement
Components: Kafka Connector
Reporter: Robert Metzger
(I don't want to include this into 1.0.0)
Currently, there is no standardized way of parsing JSON data from a Kafka
stream. I see a lot of users using JSON in their topics. It would make things
easier for our users to provide a serializer for them.
I suggest to use the jackson library because we have that aready as a
dependency in Flink and it allows to parse from a byte[].
I would suggest to provide the following classes:
- JSONSerializationSchema()
- JSONKeyValueSerializationSchema(bool includeMetadata)
The second variant should produce a record like this:
{code}
{"key": "keydata",
"value": "valuedata",
"metadata": {"offset": 123, "topic": "<topic>", "partition": 2 }
{code}
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