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https://issues.apache.org/jira/browse/NIFI-1234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15035783#comment-15035783
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ASF GitHub Bot commented on NIFI-1234:
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Github user apiri commented on the pull request:
https://github.com/apache/nifi/pull/136#issuecomment-161289671
It covers the case of records but not record. I read the documentation to
mean that as long as the input flowfile was of Avro formatted record(s), it
would perform the associated conversion but admittedly the comments in the code
provide much more context.
Regardless, have updated the comments and pushed the branch.
> Inconsistent container behavior in ConvertAvroToJSON
> ----------------------------------------------------
>
> Key: NIFI-1234
> URL: https://issues.apache.org/jira/browse/NIFI-1234
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 0.4.0
> Reporter: Douglas Doughty
> Assignee: Aldrin Piri
> Priority: Minor
>
> ConvertAvroToJSON has 2 container options: array and none.
> When set to 'array', usage dictates an "array of objects" should be produced.
> But, if only a single Avro record is passed in, an array is not created--a
> JSON object is created.
> I believe it should be wrapped in an array. This caused errors when chained
> with SplitJSON (which expects an array).
> Use case scenario: ExecuteSQL returns an unknown number of results ->
> ConvertAvroToJSON -> SplitJSON. If ExecuteSQL returns 1 result, then the
> operation fails.
> Work around: Set up a failure relationship between SplitJSON and the next
> processor--the object will be forwarded, but an error will be logged on the
> SplitJSON processor.
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