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https://issues.apache.org/jira/browse/NIFI-5566?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16606075#comment-16606075
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ASF GitHub Bot commented on NIFI-5566:
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Github user alopresto commented on the issue:
https://github.com/apache/nifi/pull/2983
I added a `.keep` file in that directory.
> Bring HashContent inline with HashService and rename legacy components
> ----------------------------------------------------------------------
>
> Key: NIFI-5566
> URL: https://issues.apache.org/jira/browse/NIFI-5566
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Extensions
> Affects Versions: 1.7.1
> Reporter: Andy LoPresto
> Assignee: Andy LoPresto
> Priority: Major
> Labels: backwards-compatibility, hash, security
>
> As documented in [NIFI-5147|https://issues.apache.org/jira/browse/NIFI-5147]
> and [PR 2980|https://github.com/apache/nifi/pull/2980], the {{HashAttribute}}
> processor and {{HashContent}} processor are lacking some features, do not
> offer consistent algorithms across platforms, etc.
> I propose the following:
> * Rename {{HashAttribute}} (which does not provide the service of calculating
> a hash over one or more attributes) to {{HashAttributeLegacy}}
> * Renamed {{CalculateAttributeHash}} to {{HashAttribute}} to make semantic
> sense
> * Rename {{HashContent}} to {{HashContentLegacy}} for users who need obscure
> digest algorithms which may or may not have been offered on their platform
> * Implement a processor {{HashContent}} with similar semantics to the
> existing processor but with consistent algorithm offerings and using the
> common {{HashService}} offering
> With the new component versioning features provided as part of the flow
> versioning behavior, silently disrupting existing flows which use these
> processors is no longer a concern. Rather, Any flow currently using the
> existing processors will either:
> 1. continue normal operation
> 1. require flow manager interaction and provide documentation about the change
> 1. migration notes and upgrade instructions will be provided
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