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

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

Pierre Villard created NIFI-1826:
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             Summary: 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
            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:

if ${myEnum} = "JOHN"
then
${myEnum:in("PAUL", "JOHN", "MIKE")} returns true
and
${myEnum:in("RED", "GREEN", "BLUE")} returns false

This would be particularly useful in RouteAttribute processor to perform conformity verifications on flow files.



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