[ 
https://issues.apache.org/jira/browse/HADOOP-19050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17816232#comment-17816232
 ] 

ASF GitHub Bot commented on HADOOP-19050:
-----------------------------------------

adnanhemani commented on code in PR #6544:
URL: https://github.com/apache/hadoop/pull/6544#discussion_r1484852608


##########
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/TestS3AccessGrantConfiguration.java:
##########
@@ -0,0 +1,108 @@
+/*
+ * 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 org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.test.AbstractHadoopTestBase;
+import org.junit.Assert;
+import org.junit.Test;
+
+import software.amazon.awssdk.awscore.AwsClient;
+import 
software.amazon.awssdk.s3accessgrants.plugin.S3AccessGrantsIdentityProvider;
+import software.amazon.awssdk.services.s3.S3BaseClientBuilder;
+
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+
+import static org.apache.hadoop.fs.s3a.Constants.AWS_S3_ACCESS_GRANTS_ENABLED;
+
+
+/**
+ * Test S3 Access Grants configurations.
+ */
+public class TestS3AccessGrantConfiguration extends AbstractHadoopTestBase {
+    /**
+     * This credential provider will be attached to any client
+     * that has been configured with the S3 Access Grants plugin.
+     * {@link 
software.amazon.awssdk.s3accessgrants.plugin.S3AccessGrantsPlugin}.
+     */
+    public static final String 
S3_ACCESS_GRANTS_EXPECTED_CREDENTIAL_PROVIDER_CLASS =
+            S3AccessGrantsIdentityProvider.class.getName();
+
+    @Test
+    public void testS3AccessGrantsEnabled() throws IOException, 
URISyntaxException {
+        // Feature is explicitly enabled
+        AwsClient s3AsyncClient = getAwsClient(createConfig(true), true);
+        Assert.assertEquals(
+                S3_ACCESS_GRANTS_EXPECTED_CREDENTIAL_PROVIDER_CLASS,
+                getCredentialProviderName(s3AsyncClient));
+
+        AwsClient s3Client = getAwsClient(createConfig(true), false);
+        Assert.assertEquals(
+                S3_ACCESS_GRANTS_EXPECTED_CREDENTIAL_PROVIDER_CLASS,
+                getCredentialProviderName(s3Client));
+    }
+
+    @Test
+    public void testS3AccessGrantsDisabled() throws IOException, 
URISyntaxException {
+        // Disabled by default
+        AwsClient s3AsyncDefaultClient = getAwsClient(new Configuration(), 
true);
+        Assert.assertNotEquals(
+                S3_ACCESS_GRANTS_EXPECTED_CREDENTIAL_PROVIDER_CLASS,
+                getCredentialProviderName(s3AsyncDefaultClient));
+
+        AwsClient s3DefaultClient = getAwsClient(new Configuration(), true);
+        Assert.assertNotEquals(
+                S3_ACCESS_GRANTS_EXPECTED_CREDENTIAL_PROVIDER_CLASS,
+                getCredentialProviderName(s3DefaultClient));
+
+        // Disabled if explicitly set
+        AwsClient s3AsyncExplicitlyDisabledClient = 
getAwsClient(createConfig(false), true);
+        Assert.assertNotEquals(
+                S3_ACCESS_GRANTS_EXPECTED_CREDENTIAL_PROVIDER_CLASS,
+                getCredentialProviderName(s3AsyncExplicitlyDisabledClient));
+
+        AwsClient s3ExplicitlyDisabledClient = 
getAwsClient(createConfig(false), true);
+        Assert.assertNotEquals(
+                S3_ACCESS_GRANTS_EXPECTED_CREDENTIAL_PROVIDER_CLASS,
+                getCredentialProviderName(s3ExplicitlyDisabledClient));
+    }
+
+    private Configuration createConfig(boolean s3agEnabled) {
+        Configuration conf = new Configuration();
+        conf.setBoolean(AWS_S3_ACCESS_GRANTS_ENABLED, s3agEnabled);
+        return conf;
+    }
+
+    private String getCredentialProviderName(AwsClient awsClient) {
+        return 
awsClient.serviceClientConfiguration().credentialsProvider().getClass().getName();
+    }
+
+    private <BuilderT extends S3BaseClientBuilder<BuilderT, ClientT>, ClientT> 
AwsClient

Review Comment:
   Yup, changed.





> Add S3 Access Grants Support in S3A
> -----------------------------------
>
>                 Key: HADOOP-19050
>                 URL: https://issues.apache.org/jira/browse/HADOOP-19050
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: fs/s3
>    Affects Versions: 3.4.0
>            Reporter: Jason Han
>            Assignee: Jason Han
>            Priority: Minor
>              Labels: pull-request-available
>
> Add support for S3 Access Grants 
> (https://aws.amazon.com/s3/features/access-grants/) in S3A.



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