Github user pvillard31 commented on a diff in the pull request:
https://github.com/apache/nifi/pull/2099#discussion_r134597430
--- Diff:
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/AttributesToJSON.java
---
@@ -79,6 +80,17 @@
.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
.build();
+
+ public static final PropertyDescriptor ATTRIBUTES_REGEX = new
PropertyDescriptor.Builder()
+ .name("attributes-to-json-regex")
+ .displayName("Attributes Regular Expression")
+ .description("Regular expression that will be evaluated
against the flow file attributes to select "
+ + "the matching attributes. This property can be used
in combination with the attributes "
+ + "list property.")
+ .required(false)
+ .addValidator(StandardValidators.REGULAR_EXPRESSION_VALIDATOR)
--- End diff --
Agree to add EL evaluation against variable registry, system properties,
etc. But won't add the evaluation against the flow file as it will impact the
performances as you said.
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