[GitHub] [hadoop] steveloughran commented on a change in pull request #1978: HDFS-15168: ABFS enhancement to translate AAD to Linux identities.

[GitBox <gi...@apache.org>]

steveloughran commented on a change in pull request #1978:
URL: https://github.com/apache/hadoop/pull/1978#discussion_r416101568



##########
File path: hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/oauth2/IdentityTransformerInterface.java
##########
@@ -0,0 +1,62 @@
+/**
+ * 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.azurebfs.oauth2;
+
+import java.io.IOException;
+import java.util.List;
+
+import org.apache.hadoop.fs.permission.AclEntry;
+
+/**
+ * {@code IdentityTransformerInterface} defines the set of translation
+ * operations that any identity transformer implementation must provide.
+ */
+public interface IdentityTransformerInterface {
+
+  /**
+   * Perform identity transformation for the Get request

Review comment:
       nit, add "." at the end o

##########
File path: hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/utils/TextFileBasedIdentityHandler.java
##########
@@ -0,0 +1,194 @@
+/**
+ * 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.azurebfs.utils;
+
+import com.google.common.base.Preconditions;
+import com.google.common.base.Strings;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.HashMap;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.io.LineIterator;
+import org.slf4j.Logger;

Review comment:
       import grouping; split up and place the org.apache.* block in its own group below the slf4j ones




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