[jira] [Created] (BEAM-11188) Go Cross-Language UX polish and refactoring

["Daniel Oliveira (Jira)" <ji...@apache.org>]

Daniel Oliveira created BEAM-11188:
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             Summary: Go Cross-Language UX polish and refactoring
                 Key: BEAM-11188
                 URL: https://issues.apache.org/jira/browse/BEAM-11188
             Project: Beam
          Issue Type: Improvement
          Components: cross-language, sdk-go
            Reporter: Daniel Oliveira
            Assignee: Daniel Oliveira


This is a bug for progress on various small usability and UX improvements to the Go SDK implementation of Cross-Language. I don't feel each one individually is important enough for a Jira, but together it's worth recording progress.

Tasks included:
* Adjust user-facing XLang functions so that Sink and Source versions are actually sinks and sources (no outputs and no inputs respectively).
* Rename SourceInputTag and SinkOutputTag since they are no longer used with source/sink versions of the methods.
* Adjust beam/xlang.go so that it doesn't need to import job_management protos. Move the proto creation down into the method the proto is passed to (which is xlangx.Expand).
* Refactor the functions in xlangx/translate.go and how they are used, since right now the functions just get called one after another in sequence.
* Move as many xlang calls out of universal.go as possible. They should be handled as part of the normal sequence of the SDK, such as in proto marshalling and unmarshalling.



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