malthe commented on code in PR #6443:
URL: https://github.com/apache/nifi/pull/6443#discussion_r995685308


##########
nifi-nar-bundles/nifi-azure-bundle/nifi-azure-processors/src/main/java/org/apache/nifi/processors/azure/storage/PutAzureBlobStorage_v12.java:
##########
@@ -121,18 +146,47 @@ public void onTrigger(final ProcessContext context, final 
ProcessSession session
             if (createContainer && !containerClient.exists()) {
                 containerClient.create();
             }
-            BlobClient blobClient = containerClient.getBlobClient(blobName);
 
+            BlobClient blobClient = containerClient.getBlobClient(blobName);
+            final BlobRequestConditions blobRequestConditions = new 
BlobRequestConditions();
+            Map<String, String> attributes = new HashMap<>();

Review Comment:
   @nandorsoma the attributes are not applied in case of an error; the code 
will not reach the `session.putAllAttributes(flowFile, attributes)` in this 
case.
   
   According to the 
[documentation](https://learn.microsoft.com/en-us/dotnet/api/azure.storage.blobs.models.blobproperties.contenttype?view=azure-dotnet#definition),
 the default mimetype is "application/octet-stream".
   
   It would seem that `ATTR_NAME_LANG` should be there exactly because of 
backwards compatibility. It is expected that if the upload succeeds, then that 
attribute is there and by default, equal to null.
   
   In case of an error, the attribute will not be set (similar to above).
   
   I'll take a look about cleaning up the code to make it less verbose around 
the important bits.



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