[jira] [Created] (HDDS-11831) Finer-grained interface for dynamically registered subcommands

["Attila Doroszlai (Jira)" <ji...@apache.org>]

Attila Doroszlai created HDDS-11831:
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             Summary: Finer-grained interface for dynamically registered subcommands
                 Key: HDDS-11831
                 URL: https://issues.apache.org/jira/browse/HDDS-11831
             Project: Apache Ozone
          Issue Type: Improvement
          Components: Ozone CLI
            Reporter: Attila Doroszlai
            Assignee: Attila Doroszlai


Dynamically registered subcommands all implement {{SubcommandWithParent}}.  The parent command is identified by {{getParentType()}}.

Each top-level command ({{OzoneAdmin}}, {{OzoneDebug}}, etc.) has to load all implementors of {{SubcommandWithParent}}, only to discard most of them.  This increases command startup latency, which is a minor problem for short-lived commands, e.g. {{ozone sh}}.

Finding children of a parent command is also a bit harder.

We could introduce more specific interfaces to limit the search scope of subcommands to be registered dynamically.



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