Chamikara Madhusanka Jayalath created BEAM-12047:
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Summary: Create aa URN convention for cross-language transforms
Key: BEAM-12047
URL: https://issues.apache.org/jira/browse/BEAM-12047
Project: Beam
Issue Type: New Feature
Components: cross-language
Reporter: Chamikara Madhusanka Jayalath
Users have to define a URN when defining new cross-language transform.
See here for documentation related to this:
[https://beam.apache.org/documentation/programming-guide/#create-x-lang-transforms]
Some example URNs used today.
Kafka read: "beam:external:java:kafka:read:v1"
Kafka write: "beam:external:java:kafka:write:v1"
SQL: "beam:external:java:sql:v1"
Currently this URN is defined by the cross-language transform author (or
whoever coverts a given transform to a cross-language transform). They can
choose arbitrary URNs.
This is OK as long as we only have few cross-language transforms and as long as
we do not deploy transforms with conflicting URNs in the same expansion service
but as usage of cross-language transforms increase we could run into conflicts
due to this.
We should define a convention so that a cross-language transform author can
define a URN that will not run into URNs selected by other cross-language
transform authors.
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