HDFS-12223. Rebasing HDFS-10467. Contributed by Inigo Goiri.

(cherry picked from commit 47db6e9d8e2c264671c89fdd6cb11a7c762d2cce)

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterRpcServer.java

@@ -64,8 +64,9 @@
 import org.apache.hadoop.hdfs.DFSConfigKeys;
 import org.apache.hadoop.hdfs.DFSUtil;
 import org.apache.hadoop.hdfs.inotify.EventBatchList;
-import org.apache.hadoop.hdfs.protocol.AddingECPolicyResponse;
+import org.apache.hadoop.hdfs.protocol.AddECPolicyResponse;
 import org.apache.hadoop.hdfs.protocol.BlockStoragePolicy;
+import org.apache.hadoop.hdfs.protocol.BlocksStats;
 import org.apache.hadoop.hdfs.protocol.CacheDirectiveEntry;
 import org.apache.hadoop.hdfs.protocol.CacheDirectiveInfo;
 import org.apache.hadoop.hdfs.protocol.CachePoolEntry;
@@ -75,6 +76,7 @@
 import org.apache.hadoop.hdfs.protocol.DatanodeID;
 import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
 import org.apache.hadoop.hdfs.protocol.DirectoryListing;
+import org.apache.hadoop.hdfs.protocol.ECBlockGroupsStats;
 import org.apache.hadoop.hdfs.protocol.EncryptionZone;
 import org.apache.hadoop.hdfs.protocol.ErasureCodingPolicy;
 import org.apache.hadoop.hdfs.protocol.ExtendedBlock;
@@ -85,6 +87,7 @@
 import org.apache.hadoop.hdfs.protocol.LastBlockWithStatus;
 import org.apache.hadoop.hdfs.protocol.LocatedBlock;
 import org.apache.hadoop.hdfs.protocol.LocatedBlocks;
+import org.apache.hadoop.hdfs.protocol.OpenFileEntry;
 import org.apache.hadoop.hdfs.protocol.RollingUpgradeInfo;
 import org.apache.hadoop.hdfs.protocol.SnapshotDiffReport;
 import org.apache.hadoop.hdfs.protocol.SnapshottableDirectoryStatus;
@@ -1735,13 +1738,6 @@ public void setErasureCodingPolicy(String src, String ecPolicyName)
     checkOperation(OperationCategory.WRITE, false);
   }
 
-  @Override // ClientProtocol
-  public AddingECPolicyResponse[] addErasureCodingPolicies(
-      ErasureCodingPolicy[] policies) throws IOException {
-    checkOperation(OperationCategory.WRITE, false);
-    return null;
-  }
-
   @Override // ClientProtocol
   public void unsetErasureCodingPolicy(String src) throws IOException {
     checkOperation(OperationCategory.WRITE, false);
@@ -1808,6 +1804,53 @@ public BlockStoragePolicy getStoragePolicy(String path) throws IOException {
     return null;
   }
 
+  @Override
+  public AddECPolicyResponse[] addErasureCodingPolicies(
+      ErasureCodingPolicy[] arg0) throws IOException {
+    checkOperation(OperationCategory.WRITE, false);
+    return null;
+  }
+
+  @Override
+  public void removeErasureCodingPolicy(String arg0) throws IOException {
+    checkOperation(OperationCategory.WRITE, false);
+  }
+
+  @Override
+  public void disableErasureCodingPolicy(String arg0) throws IOException {
+    checkOperation(OperationCategory.WRITE, false);
+  }
+
+  @Override
+  public void enableErasureCodingPolicy(String arg0) throws IOException {
+    checkOperation(OperationCategory.WRITE, false);
+  }
+
+  @Override
+  public ECBlockGroupsStats getECBlockGroupsStats() throws IOException {
+    checkOperation(OperationCategory.READ, false);
+    return null;
+  }
+
+  @Override
+  public HashMap<String, String> getErasureCodingCodecs() throws IOException {
+    checkOperation(OperationCategory.READ, false);
+    return null;
+  }
+
+  @Override
+  public BlocksStats getBlocksStats() throws IOException {
+    checkOperation(OperationCategory.READ, false);
+    return null;
+  }
+
+  @Override
+  public BatchedEntries<OpenFileEntry> listOpenFiles(long arg0)
+      throws IOException {
+    checkOperation(OperationCategory.READ, false);
+    return null;
+  }
+
   /**
    * Locate the location with the matching block pool id.
    *