I’ve been using Axon for a while now, and I’m thinking about supporting BI real-time uses cases by leveraging Apache Druid on the read model side.
Natively, Apache Druid supports Kafka, Kinesis, and CSV files as a streaming source.
I’m currently using Axon 4 with the Axon Server. I know I could use the axon-kafka extension so that Druid could ingest the data from there but I m not a big fan throwing in another piece of infrastructure knowing that Axon Server already offers streaming capabilities.
So my first idea is to write a Apache Druid extension that would make the bridge between a tracking processor for example and the Druid ingestion engine : https://druid.apache.org/docs/latest/development/modules.html#adding-support-for-a-new-input-source
Are you aware of any existing community project about this ? I’ve limited resources to work on it right now, but I guess this could benefit a lot of people wanting to build analytics on top of their business data.