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https://issues.apache.org/jira/browse/HADOOP-18708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17865100#comment-17865100
 ] 

ASF GitHub Bot commented on HADOOP-18708:
-----------------------------------------

shameersss1 commented on code in PR #6884:
URL: https://github.com/apache/hadoop/pull/6884#discussion_r1674124598


##########
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/CustomKeyring.java:
##########
@@ -0,0 +1,69 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.hadoop.fs.s3a;
+
+import java.io.IOException;
+import java.util.List;
+
+import software.amazon.awssdk.regions.Region;
+import software.amazon.awssdk.services.kms.KmsClient;
+import software.amazon.encryption.s3.materials.DecryptionMaterials;
+import software.amazon.encryption.s3.materials.EncryptedDataKey;
+import software.amazon.encryption.s3.materials.EncryptionMaterials;
+import software.amazon.encryption.s3.materials.Keyring;
+import software.amazon.encryption.s3.materials.KmsKeyring;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.Path;
+
+import static org.apache.hadoop.fs.s3a.Constants.AWS_REGION;
+import static org.apache.hadoop.fs.s3a.Constants.AWS_S3_DEFAULT_REGION;
+
+/**
+ * Custom Keyring implementation by warpping over KmsKeyring.
+ * This is used for testing {@link ITestS3AClientSideEncryptionCustom}.
+ */
+public class CustomKeyring implements Keyring {
+  private final KmsClient kmsClient;
+  private final Configuration conf;
+  private final KmsKeyring kmsKeyring;
+
+
+  public CustomKeyring(Configuration conf) throws IOException {
+    this.conf = conf;
+    kmsClient = KmsClient.builder().region(Region.of(conf.get(AWS_REGION, 
AWS_S3_DEFAULT_REGION)))
+        .credentialsProvider(new TemporaryAWSCredentialsProvider(
+            new Path(conf.get("test.fs.s3a.name")).toUri(), conf))
+        .build();
+    kmsKeyring = KmsKeyring.builder()
+        .kmsClient(kmsClient)
+        .wrappingKeyId(conf.get(Constants.S3_ENCRYPTION_KEY)).build();

Review Comment:
   ack





> AWS SDK V2 - Implement CSE
> --------------------------
>
>                 Key: HADOOP-18708
>                 URL: https://issues.apache.org/jira/browse/HADOOP-18708
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 3.4.0
>            Reporter: Ahmar Suhail
>            Assignee: Syed Shameerur Rahman
>            Priority: Major
>              Labels: pull-request-available
>
> S3 Encryption client for SDK V2 is now available, so add client side 
> encryption back in. 



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