Mark Payne created NIFI-3636:
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Summary: Session should not copy FlowFile Attribute Map when
creating new FlowFile object unless attributes are changing
Key: NIFI-3636
URL: https://issues.apache.org/jira/browse/NIFI-3636
Project: Apache NiFi
Issue Type: Bug
Components: Core Framework
Reporter: Mark Payne
Assignee: Mark Payne
Currently, each time we create a new FlowFile object, we do so using
StandardFlowFileRecord.Builder and then call fromFlowFile(FlowFile). This
copies the attributes map of the given FlowFile. We should instead just set the
member variable of the builder to point at the same Map object as the given
FlowFile and keep a flag indicating whether or not this was done. If this is
done, we must lazily copy the hash map before modifying it. Otherwise, we can
point to the same Map object.
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