kpsngh1998 commented on a change in pull request #4515:
URL: https://github.com/apache/nifi/pull/4515#discussion_r501449404
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File path:
nifi-nar-bundles/nifi-aws-bundle/nifi-aws-processors/src/main/java/org/apache/nifi/processors/aws/s3/FetchS3Object.java
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@@ -139,6 +140,13 @@ public void onTrigger(final ProcessContext context, final
ProcessSession session
final String versionId =
context.getProperty(VERSION_ID).evaluateAttributeExpressions(flowFile).getValue();
final boolean requesterPays =
context.getProperty(REQUESTER_PAYS).asBoolean();
+ if (StringUtils.isEmpty(bucket) || StringUtils.isEmpty(key)) {
Review comment:
If I understood correctly, you are solving the case when bucket/key are
**""** or **<sequence of whitespaces only>** .
There are two things:
org.apache.nifi.util.StringUtils.isEmpty don't check for whitespaces. So
instead of StringUtils.isEmpty you can use StringUtils.isBlank which also
checks for whitespaces. Or you can add StandardValidators.NON_BLANK_VALIDATOR
in both the properties validation which will show validation error for
whitespaces/empty strings.
"Both 'Bucket' and 'Object Key' cannot be empty" This error message will be
logged even if only one is empty other is not, which is somewhat misleading.
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