JongHyok Lee created GEARPUMP-27:
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Summary: Dynamic DAG modification API
Key: GEARPUMP-27
URL: https://issues.apache.org/jira/browse/GEARPUMP-27
Project: Apache Gearpump
Issue Type: Improvement
Reporter: JongHyok Lee
Dynamic modification of running DAG through API needed to support other
application utilize Gearpump as a real stream processing 'engine', because most
of business application has it's own UI's and modification of running DAG
issued from business application not by developer or Gearpump admin.
It's same for me. I'm developing business application with it's own UI but has
requirements of dynamic change of DAG.
My current approach is to dynamically generate akka streams based class (with
connection information) and load it using loadClass. But if gearpump provides
those kind of APIs, it might be very helpful.
The use case might user change processing logic of data stream by selecting an
item from combo box of my UI, and my application dynamically compose new logic
and pass the compiled jar (or just source code) to the API which gearpump
provides.
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