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https://issues.apache.org/jira/browse/NIFI-2152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16545095#comment-16545095
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Mike Thomsen commented on NIFI-2152:
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[~mattyb149] further up in Jira, I saw someone mention that they're working on
a PR to move to Compilable. That's going to greatly complicate this ticket, but
will be well worth it if it's done right.
> ExecuteScript throws Exception when Using NiFi Expression in ScriptPath
> -----------------------------------------------------------------------
>
> Key: NIFI-2152
> URL: https://issues.apache.org/jira/browse/NIFI-2152
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 0.6.1
> Reporter: Christopher Reeves
> Priority: Major
>
> The ExecuteScript Processor throws in an Exception in the "setup" method when
> using a NiFi Expression for the script Path argument. Ideally, the script
> would be read in the onTrigger Method of the processor to allow for setting
> the desired script on a dynamic basis.
> A RouteAttributeProcessor can be used as a workaround to point to many
> ExecuteScript processor. However, depending on the number of scripts
> required, this can lead to a cluttered flow configuration which can be
> difficult to follow and much more difficult to maintain.
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