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https://issues.apache.org/jira/browse/NIFI-3996?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pierre Villard resolved NIFI-3996.
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Resolution: Feedback Received
Apache NiFi 1.x is no longer maintained and no new release is planned on the
1.x release line. Marking as resolved as part of a cleanup operation. Please
open a new one with an updated description if this is still relevant for NiFi
2.x.
> MergeContent needs more AttributeStrategy implementations.
> ----------------------------------------------------------
>
> Key: NIFI-3996
> URL: https://issues.apache.org/jira/browse/NIFI-3996
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.2.0
> Reporter: Matthew Wilson
> Priority: Minor
> Labels: features
> Attachments: KeepFirstAttributeStrategy.txt
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> The MergeContent processor currently has two strategies for merging
> properties. We have the need to add a third. We could extend the class but
> there is not an extension point to do so. Our only current option is to clone
> and own the processor, which we would rather not do.
> What we need is a "Keep First" (or "Keep Last") implementation which keeps
> all the properties using the the first property key/value found.
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