Mark Payne created NIFI-974:
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Summary: Improve error messages included in Exceptions that are
thrown by ProcessSession
Key: NIFI-974
URL: https://issues.apache.org/jira/browse/NIFI-974
Project: Apache NiFi
Issue Type: Improvement
Reporter: Mark Payne
Fix For: 0.4.0
Exceptions that are thrown by StandardProcessSession tend to be geared toward
verbiage that makes sense within the context of the ProcessSession, but they
don't make much sense within the context of a Processor. Developers are often
confused by the meaning.
Examples include:
"... is not the most recent version of this FlowFIle." This should note that
the processor modified the FlowFIle via write, putAttribute, putAllAttributes,
etc. and then attempted to access an old version of the FlowFile
"transfer relationship not specified". This should note that the Processor has
a bug that resulted in a FlowFile not being transferred or removed and that all
FlowFiles must be accounted for; this message should also indicate whether the
FlowFile was created in this session or if the FlowFile was consumed from a
queue.
There are likely other examples of poorly worded Exceptions.
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