markap14 commented on a change in pull request #4088: NIFI-7197 - In-place
replacement in LookupRecord processor
URL: https://github.com/apache/nifi/pull/4088#discussion_r387733336
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File path:
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/LookupRecord.java
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@@ -214,24 +227,36 @@ protected PropertyDescriptor
getSupportedDynamicPropertyDescriptor(final String
}
final Set<String> requiredKeys =
validationContext.getProperty(LOOKUP_SERVICE).asControllerService(LookupService.class).getRequiredKeys();
- final Set<String> missingKeys = requiredKeys.stream()
- .filter(key -> !dynamicPropNames.contains(key))
- .collect(Collectors.toSet());
- if (!missingKeys.isEmpty()) {
- final List<ValidationResult> validationResults = new ArrayList<>();
- for (final String missingKey : missingKeys) {
- final ValidationResult result = new ValidationResult.Builder()
- .subject(missingKey)
- .valid(false)
- .explanation("The configured Lookup Services requires that
a key be provided with the name '" + missingKey
- + "'. Please add a new property to this Processor with
a name '" + missingKey
- + "' and provide a RecordPath that can be used to
retrieve the appropriate value.")
- .build();
- validationResults.add(result);
+ if(validationContext.getProperty(IN_PLACE_REPLACEMENT).asBoolean()) {
+ // it must be a single key lookup service
+ if(requiredKeys.size() != 1) {
+ return Collections.singleton(new ValidationResult.Builder()
+ .subject(LOOKUP_SERVICE.getDisplayName())
+ .valid(false)
+ .explanation("The configured Lookup Services should
only require one key when in-place replacement is set to true.")
Review comment:
Would also recommend updating this explanation if updating the "In-Place
Replacement" property to be a strategy. Also would even recommend being a bit
more explicit in telling the user that the configured Lookup Service is not
compatible with the selected strategy. As written, it sounds like the service
is doing something wrong because the service "should only require one key".
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