kaHaleMaKai commented on a change in pull request #3543: NIFI-6388 Add dynamic
relationships to the ExecuteScript processor.
URL: https://github.com/apache/nifi/pull/3543#discussion_r298682586
##########
File path:
nifi-nar-bundles/nifi-scripting-bundle/nifi-scripting-processors/src/main/java/org/apache/nifi/processors/script/ExecuteScript.java
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@@ -133,13 +167,57 @@
*/
@Override
protected PropertyDescriptor getSupportedDynamicPropertyDescriptor(final
String propertyDescriptorName) {
- return new PropertyDescriptor.Builder()
+ final boolean isRelationship = propertyDescriptorName != null &&
propertyDescriptorName.startsWith(DYNAMIC_RELATIONSHIP_PREFIX);
+ if (isRelationship) {
+ if
(!DYNAMIC_RELATIONSHIP_PATTERN.matcher(propertyDescriptorName).matches()) {
+ log.warn("dyn. property for relationship is invalid: '{}'.
accepted patterns: '{}'", new Object[]{propertyDescriptorName,
DYNAMIC_RELATIONSHIP_PATTERN_AS_STRING});
+ return new PropertyDescriptor.Builder()
+ .addValidator(new RelationshipInvalidator())
+ .dynamic(true)
+ .required(false)
+ .name(propertyDescriptorName)
Review comment:
I tried that, but it didn't work out. We need to keep the full property name
(including the `REL_` prefix, previously `rel.`), so that the
`ExecuteScript#onPropertyModified()` method can detect the new property
indicating a relationship. If we prematurely remove the prefix, the respective
method cannot tell if it's just a regular dynamic property, or if the user
wants to add a new dynamic relationship.
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