theoryxu commented on code in PR #5733:
URL: https://github.com/apache/gravitino/pull/5733#discussion_r1868867479


##########
authorizations/authorization-ranger/src/main/java/org/apache/gravitino/authorization/ranger/RangerAuthorizationHDFSPlugin.java:
##########
@@ -0,0 +1,202 @@
+package org.apache.gravitino.authorization.ranger;
+
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+import java.util.regex.Pattern;
+import org.apache.gravitino.GravitinoEnv;
+import org.apache.gravitino.MetadataObject;
+import org.apache.gravitino.NameIdentifier;
+import org.apache.gravitino.authorization.Privilege;
+import org.apache.gravitino.authorization.SecurableObject;
+import org.apache.gravitino.authorization.SecurableObjects;
+import org.apache.gravitino.authorization.ranger.reference.RangerDefines;
+import org.apache.gravitino.exceptions.AuthorizationPluginException;
+import org.apache.gravitino.file.Fileset;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class RangerAuthorizationHDFSPlugin extends RangerAuthorizationPlugin {
+  private static final Logger LOG = 
LoggerFactory.getLogger(RangerAuthorizationHDFSPlugin.class);
+
+  private static final Pattern pattern = Pattern.compile("^hdfs://[^/]*");
+
+  private RangerAuthorizationHDFSPlugin(Map<String, String> config) {
+    super(config);
+  }
+
+  public static synchronized RangerAuthorizationHDFSPlugin 
getInstance(Map<String, String> config) {
+    return new RangerAuthorizationHDFSPlugin(config);
+  }
+
+  @Override
+  public void validateRangerMetadataObject(List<String> names, 
RangerMetadataObject.Type type)
+      throws IllegalArgumentException {
+    LOG.info("validateRangerMetadataObject {}", names);

Review Comment:
   done



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