Christof Dilcher created NIFI-13547:
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Summary: UpdateAttribute Advanced Configuration does not recognize
Parameters
Key: NIFI-13547
URL: https://issues.apache.org/jira/browse/NIFI-13547
Project: Apache NiFi
Issue Type: Bug
Affects Versions: 1.23.2, 1.21.0
Reporter: Christof Dilcher
Attachments: Parameter_Test.json.zip,
direct_use_of_parameter_in_UpdateAttribute.jpg,
parameter_used_in_expression_language_in_UpdateAttribute.jpg
When using UpdateAttribute Advanced Configuration and configuring a rule, a
parameter value (from the parameter context) is not directly accessible. When
referencing a parameter in the "Value" section of the "Action" part of the
"Rule" setup (see screenshot direct_use_of_parameter_in_UpdateAttribute.jpg),
it is instead interpreted literally and not replaced with the parameter value
as would be expected.
The value can be accessed however when the parameter is referenced within an
expression language term (see screenshot
parameter_used_in_expression_language_in_UpdateAttribute.jpg).
IMHO the parameter value shall be directly accessible within this
configuration. If this is intended behavior, this shall be mentioned in the
documentation as it is not obvious to the user that in this place the
expression language has to be used in order to access the parameter value.
I have attached the flow definition to this ticket (see
Parameter_Test.json.zip) for reference. The corresponding parameter context
just contains one parameter named "replacement_parameter" with its value 'some
replacement value'.
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