[jira] [Created] (BEAM-12047) Create aa URN convention for cross-language transforms

["Chamikara Madhusanka Jayalath (Jira)" <ji...@apache.org>]

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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