[jira] [Updated] (NIFI-15011) FlowDifferenceFilters - handle splitRelationship()

["Pierre Villard (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NIFI-15011?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pierre Villard updated NIFI-15011:
----------------------------------
    Status: Patch Available  (was: Open)

> FlowDifferenceFilters - handle splitRelationship() 
> ---------------------------------------------------
>
>                 Key: NIFI-15011
>                 URL: https://issues.apache.org/jira/browse/NIFI-15011
>             Project: Apache NiFi
>          Issue Type: Improvement
>            Reporter: Pierre Villard
>            Assignee: Pierre Villard
>            Priority: Major
>
> Consider something like:
>  
> {code:java}
>      @Override
>      public void migrateRelationships(final RelationshipConfiguration config) {
>          if (!config.hasRelationship(B)) {
>              config.splitRelationship(A.getName(), A.getName(), B.getName());
>          }
>          super.migrateRelationships(config);
>      }{code}
> Then I'd see a local change such as:
> Selected Relationships Changed - From '[A]' to '[A, B]'
>  
> If the relation B didn't exist at all in the flow definition, and if the source processor does not support dynamic relationships, then this change should not show as a local change.
> Similarly, if the processor does not support dynamic relationships and if we have:
> {code:java}
>      @Override
>      public void migrateRelationships(final RelationshipConfiguration config) {
>        if (!config.hasRelationship(A)) {
>            config.splitRelationship(OLD.getName(), A.getName(), B.getName());
>          }
>          super.migrateRelationships(config);
>      }{code}
> (we remove an OLD relationship that we split into two new ones)
> We should not show a local change like:
> Selected Relationships Changed - From '[OLD]' to '[A, B]'



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