[jira] [Commented] (NIFI-6255) Allow NiFi to hash specific attributes of a record

["Bryan Bende (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NIFI-6255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16832669#comment-16832669 ] 

Bryan Bende commented on NIFI-6255:
-----------------------------------

I think we should consider adding hash functions to EL and/or record-path which would eliminate the need for a new processor because then it could be done with UpdateRecord.

If hashing with EL, then in UpdateRecord you could do:
{code:java}
/fieldA = ${hash(ALGORITHM, field.value)}{code}
If hashing with record-path, then in UpdateRecord you could do:
{code:java}
/fieldA = hash(ALGORITH, /fieldA){code}

> Allow NiFi to hash specific attributes of a record
> --------------------------------------------------
>
>                 Key: NIFI-6255
>                 URL: https://issues.apache.org/jira/browse/NIFI-6255
>             Project: Apache NiFi
>          Issue Type: New Feature
>          Components: Extensions
>    Affects Versions: 2.0.0
>            Reporter: Nathan Bruce
>            Priority: Trivial
>
> Create a processor for NiFi to read in a file of records through the Record Reader service and hash specific keys within the record. 
> The processor will accept a comma delimited list of strings that would specify the keys to be hashed, as an attribute. If the keys specified are not present in a given record, the processor should continue without resulting in a failure. 
> The processor will have a list of hashing algorithms to be applied to the record, as well as an optional salt. 
> The hashed value will replace the current value stored for the given key then passed on to the Record Writer service. 



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