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https://issues.apache.org/jira/browse/NIFI-531?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joseph Gresock closed NIFI-531.
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Resolution: Fixed
Not needed, per Mark's explanation in the comments.
> Add UpdateContent processor
> ---------------------------
>
> Key: NIFI-531
> URL: https://issues.apache.org/jira/browse/NIFI-531
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Reporter: Joseph Gresock
>
> A simple and powerful processor would be one that can replace the content of
> a flow file with an evaluated EL expression. This could be coupled with
> processors that take specific document formats as input (e.g., PutSolr from
> NIFI-461), which could easily be constructed using one or more flow file
> attributes.
> I believe the only way built into Nifi that lets you achieve this is to
> specify a header file in MergeContent, whose contents is an EL expression.
> This would simplify the process.
> Pull request forthcoming this week.
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