Mark Payne created NIFI-1256:
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Summary: Allow RouteText to use Expression Language to route lines
Key: NIFI-1256
URL: https://issues.apache.org/jira/browse/NIFI-1256
Project: Apache NiFi
Issue Type: Improvement
Components: Extensions
Reporter: Mark Payne
Fix For: 0.5.0
As part of NIFI-1249, we made it so that Processors can provide their own
'variables' to be evaluated by the Expression Language. We should update
RouteText to add a Matching Strategy of "Satisfies Expression". If this is
selected, the values of user-defined properties should be required to be
Expression Language Expressions that return BOOLEAN, as with RouteOnAttribute.
We would add a variable named "line" so that users can route by using an
expression like: ${line:toUpper():startsWith("U")}
This is a much more powerful mechanism than the others, as it allows any and
all of the existing strategies to be combined into a single expression and
allows users to use different types of comparisons for each property.
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