pranavsaxena-microsoft commented on code in PR #3440:
URL: https://github.com/apache/hadoop/pull/3440#discussion_r1062130167


##########
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/AzureBlobFileSystemStore.java:
##########
@@ -1616,16 +1647,39 @@ private void initializeClient(URI uri, String 
fileSystemName,
             abfsConfiguration.getRawConfiguration());
     }
 
+    // Encryption setup
+    EncryptionContextProvider encryptionContextProvider = null;
+    if (isSecure) {
+      encryptionContextProvider =
+          abfsConfiguration.createEncryptionContextProvider();
+      if (encryptionContextProvider != null) {
+        if (abfsConfiguration.getEncodedClientProvidedEncryptionKey() != null) 
{
+          throw new IOException(
+              "Both global key and encryption context are set, only one 
allowed");
+        }
+        encryptionContextProvider.initialize(
+            abfsConfiguration.getRawConfiguration(), accountName,
+            fileSystemName);
+      } else if (abfsConfiguration.getEncodedClientProvidedEncryptionKey() != 
null) {
+        if (abfsConfiguration.getEncodedClientProvidedEncryptionKeySHA() != 
null) {
+        } else {
+          throw new IOException(
+              "Encoded SHA256 hash must be provided for global encryption");

Review Comment:
   refactored to have PathIOException.



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