Douglas Doughty created NIFI-1234:
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Summary: Inconsistent container options in ConvertAvroToJSON
Key: NIFI-1234
URL: https://issues.apache.org/jira/browse/NIFI-1234
Project: Apache NiFi
Issue Type: Bug
Components: Core UI
Affects Versions: 0.4.0
Reporter: Douglas Doughty
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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