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https://issues.apache.org/jira/browse/NIFI-8661?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17357602#comment-17357602
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ASF subversion and git services commented on NIFI-8661:
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Commit d340ad79ed82f3fa07ed37412ae686453029bf6f in nifi's branch
refs/heads/main from Mark Payne
[ https://gitbox.apache.org/repos/asf?p=nifi.git;h=d340ad7 ]
NIFI-8661: Updated ReaderLookup and RecordSetWriterLookup to use a property
that indicates which reader/writer to use instead of requiring a specific
attribute be provided
Signed-off-by: Matthew Burgess <[email protected]>
This closes #5129
> Update Record Reader/Writer lookup services to not require specific
> attributes exist
> ------------------------------------------------------------------------------------
>
> Key: NIFI-8661
> URL: https://issues.apache.org/jira/browse/NIFI-8661
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Extensions
> Reporter: Mark Payne
> Assignee: Mark Payne
> Priority: Major
> Fix For: 1.14.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> NIFI-5829 introduced a ReaderLookup service and a RecordSetWriterLookup
> service. However, these services make the assumption that the reader/writer
> to use exists on an attribute of the flowfile such as {{recordreader.name}}.
> This means that these services are not applicable for many situations,
> especially for source processors.
> A more convenient way would be to just add a property to these services
> indicating the name of the service to use, instead of expecting that an
> attribute with that name exists. We can set the default value of the property
> to `${recordreader.name}` etc. in order to maintain backward compatibility.
> But this gives us the flexibility, for example, to use this in
> ConsumeKafkaRecord where kafka message headers are available in Expression
> Language and also gives us the ability to use a parameter for specifying the
> data format to use.
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