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https://issues.apache.org/jira/browse/NIFI-1123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15011883#comment-15011883
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ASF GitHub Bot commented on NIFI-1123:
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Github user jskora commented on the pull request:
https://github.com/apache/nifi/pull/116#issuecomment-157853063
Ok, I think that commit fixes the validation issue. This commit
1. adds a custom validator checking that the expression is either valid EL
or valid RE, and
2. adds tests to match Tony's bad RE tests.
> Extend the "Delete Attributes Expression" to support Expression Language
> ------------------------------------------------------------------------
>
> Key: NIFI-1123
> URL: https://issues.apache.org/jira/browse/NIFI-1123
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Reporter: Joe Skora
> Assignee: Joe Skora
> Priority: Minor
> Labels: easyfix, features, patch
>
> Allow the "Delete Attributes Expression" to accept Expression Language to
> dynamically produce the regular expression to identify attributes to be
> deleted per discussion on
> [NIFI-641|https://issues.apache.org/jira/browse/NIFI-641].
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