[jira] [Assigned] (NIFI-1826) Expression Language: add function to check enumerator

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

     [ https://issues.apache.org/jira/browse/NIFI-1826?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pierre Villard reassigned NIFI-1826:
------------------------------------

    Assignee: Pierre Villard

> Expression Language: add function to check enumerator
> -----------------------------------------------------
>
>                 Key: NIFI-1826
>                 URL: https://issues.apache.org/jira/browse/NIFI-1826
>             Project: Apache NiFi
>          Issue Type: Improvement
>          Components: Core Framework
>    Affects Versions: 0.6.1
>            Reporter: Pierre Villard
>            Assignee: Pierre Villard
>            Priority: Minor
>
> It would be useful to add a function returning true if a string is in a list of arguments and false otherwise.
> Example:
> {noformat}
> if ${myEnum} = "JOHN"
> then
> ${myEnum:in("PAUL", "JOHN", "MIKE")} returns true
> and
> ${myEnum:in("RED", "GREEN", "BLUE")} returns false
> {noformat}
> This would be particularly useful in RouteAttribute processor to perform conformity verifications on flow files.



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