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From ji...@apache.org
Subject [19/22] git commit: HDFS-6851. Refactor EncryptionZoneWithId and EncryptionZone. (clamb via wang)
Date Wed, 17 Sep 2014 00:59:14 GMT
HDFS-6851. Refactor EncryptionZoneWithId and EncryptionZone. (clamb via wang)


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/33ce887c
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/33ce887c
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/33ce887c

Branch: refs/heads/HDFS-6584
Commit: 33ce887c20ec806ace02063e42599c3db76b536a
Parents: 02adf71
Author: Andrew Wang <wang@apache.org>
Authored: Tue Sep 16 16:29:35 2014 -0700
Committer: Andrew Wang <wang@apache.org>
Committed: Tue Sep 16 16:41:09 2014 -0700

----------------------------------------------------------------------
 hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt     |  2 +
 .../java/org/apache/hadoop/hdfs/DFSClient.java  |  5 +-
 .../hadoop/hdfs/protocol/ClientProtocol.java    |  4 +-
 .../hadoop/hdfs/protocol/EncryptionZone.java    | 18 ++++-
 .../hdfs/protocol/EncryptionZoneIterator.java   | 20 ++---
 .../hdfs/protocol/EncryptionZoneWithId.java     | 81 --------------------
 .../protocol/EncryptionZoneWithIdIterator.java  | 53 -------------
 ...tNamenodeProtocolServerSideTranslatorPB.java |  6 +-
 .../ClientNamenodeProtocolTranslatorPB.java     | 14 ++--
 .../apache/hadoop/hdfs/protocolPB/PBHelper.java | 12 +--
 .../server/namenode/EncryptionZoneManager.java  | 24 +++---
 .../hdfs/server/namenode/FSDirectory.java       |  6 +-
 .../hdfs/server/namenode/FSNamesystem.java      | 10 +--
 .../hdfs/server/namenode/NameNodeRpcServer.java |  6 +-
 .../hadoop-hdfs/src/main/proto/encryption.proto |  6 +-
 15 files changed, 73 insertions(+), 194 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/33ce887c/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
index 4976938..6ee7043 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
+++ b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
@@ -466,6 +466,8 @@ Release 2.6.0 - UNRELEASED
 
     HDFS-7006. Test encryption zones with KMS. (Anthony Young-Garner and tucu)
 
+    HDFS-6851. Refactor EncryptionZoneWithId and EncryptionZone. (clamb via wang)
+
   OPTIMIZATIONS
 
     HDFS-6690. Deduplicate xattr names in memory. (wang)

http://git-wip-us.apache.org/repos/asf/hadoop/blob/33ce887c/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSClient.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSClient.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSClient.java
index 27abfb8..9da8efc 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSClient.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSClient.java
@@ -154,7 +154,6 @@ import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
 import org.apache.hadoop.hdfs.protocol.DirectoryListing;
 import org.apache.hadoop.hdfs.protocol.EncryptionZone;
 import org.apache.hadoop.hdfs.protocol.EncryptionZoneIterator;
-import org.apache.hadoop.hdfs.protocol.EncryptionZoneWithId;
 import org.apache.hadoop.hdfs.protocol.ExtendedBlock;
 import org.apache.hadoop.hdfs.protocol.HdfsBlocksMetadata;
 import org.apache.hadoop.hdfs.protocol.HdfsConstants;
@@ -2887,8 +2886,8 @@ public class DFSClient implements java.io.Closeable, RemotePeerFactory,
           throws IOException {
     checkOpen();
     try {
-      final EncryptionZoneWithId ezi = namenode.getEZForPath(src);
-      return (ezi.getId() < 0) ? null : ezi;
+      final EncryptionZone ez = namenode.getEZForPath(src);
+      return (ez.getId() < 0) ? null : ez;
     } catch (RemoteException re) {
       throw re.unwrapRemoteException(AccessControlException.class,
                                      UnresolvedPathException.class);

http://git-wip-us.apache.org/repos/asf/hadoop/blob/33ce887c/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/ClientProtocol.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/ClientProtocol.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/ClientProtocol.java
index 093afcf..d8b7a79 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/ClientProtocol.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/ClientProtocol.java
@@ -1282,7 +1282,7 @@ public interface ClientProtocol {
    * Get the encryption zone for a path.
    */
   @Idempotent
-  public EncryptionZoneWithId getEZForPath(String src)
+  public EncryptionZone getEZForPath(String src)
     throws IOException;
 
   /**
@@ -1293,7 +1293,7 @@ public interface ClientProtocol {
    * @return Batch of encryption zones.
    */
   @Idempotent
-  public BatchedEntries<EncryptionZoneWithId> listEncryptionZones(
+  public BatchedEntries<EncryptionZone> listEncryptionZones(
       long prevId) throws IOException;
 
   /**

http://git-wip-us.apache.org/repos/asf/hadoop/blob/33ce887c/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZone.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZone.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZone.java
index a20e93c..a20513a 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZone.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZone.java
@@ -24,7 +24,8 @@ import org.apache.hadoop.classification.InterfaceStability;
 
 /**
  * A simple class for representing an encryption zone. Presently an encryption
- * zone only has a path (the root of the encryption zone) and a key name.
+ * zone only has a path (the root of the encryption zone), a key name, and a
+ * unique id. The id is used to implement batched listing of encryption zones.
  */
 @InterfaceAudience.Public
 @InterfaceStability.Evolving
@@ -32,10 +33,12 @@ public class EncryptionZone {
 
   private final String path;
   private final String keyName;
+  private final long id;
 
-  public EncryptionZone(String path, String keyName) {
+  public EncryptionZone(String path, String keyName, long id) {
     this.path = path;
     this.keyName = keyName;
+    this.id = id;
   }
 
   public String getPath() {
@@ -46,10 +49,14 @@ public class EncryptionZone {
     return keyName;
   }
 
+  public long getId() {
+    return id;
+  }
+
   @Override
   public int hashCode() {
     return new HashCodeBuilder(13, 31).
-      append(path).append(keyName).
+      append(path).append(keyName).append(id).
       toHashCode();
   }
 
@@ -69,11 +76,14 @@ public class EncryptionZone {
     return new EqualsBuilder().
       append(path, rhs.path).
       append(keyName, rhs.keyName).
+      append(id, rhs.id).
       isEquals();
   }
 
   @Override
   public String toString() {
-    return "EncryptionZone [path=" + path + ", keyName=" + keyName + "]";
+    return "EncryptionZone [path=" + path +
+        ", keyName=" + keyName +
+        ", id=" + id + "]";
   }
 }

http://git-wip-us.apache.org/repos/asf/hadoop/blob/33ce887c/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZoneIterator.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZoneIterator.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZoneIterator.java
index ff308da..b8c21b0 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZoneIterator.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZoneIterator.java
@@ -22,7 +22,7 @@ import java.io.IOException;
 
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceStability;
-import org.apache.hadoop.fs.RemoteIterator;
+import org.apache.hadoop.fs.BatchedRemoteIterator;
 
 /**
  * EncryptionZoneIterator is a remote iterator that iterates over encryption
@@ -30,22 +30,24 @@ import org.apache.hadoop.fs.RemoteIterator;
  */
 @InterfaceAudience.Private
 @InterfaceStability.Evolving
-public class EncryptionZoneIterator implements RemoteIterator<EncryptionZone> {
+public class EncryptionZoneIterator
+    extends BatchedRemoteIterator<Long, EncryptionZone> {
 
-  private final EncryptionZoneWithIdIterator iterator;
+  private final ClientProtocol namenode;
 
   public EncryptionZoneIterator(ClientProtocol namenode) {
-    iterator = new EncryptionZoneWithIdIterator(namenode);
+    super(Long.valueOf(0));
+    this.namenode = namenode;
   }
 
   @Override
-  public boolean hasNext() throws IOException {
-    return iterator.hasNext();
+  public BatchedEntries<EncryptionZone> makeRequest(Long prevId)
+      throws IOException {
+    return namenode.listEncryptionZones(prevId);
   }
 
   @Override
-  public EncryptionZone next() throws IOException {
-    EncryptionZoneWithId ezwi = iterator.next();
-    return ezwi.toEncryptionZone();
+  public Long elementToPrevKey(EncryptionZone entry) {
+    return entry.getId();
   }
 }

http://git-wip-us.apache.org/repos/asf/hadoop/blob/33ce887c/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZoneWithId.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZoneWithId.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZoneWithId.java
deleted file mode 100644
index e7fd2ae..0000000
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZoneWithId.java
+++ /dev/null
@@ -1,81 +0,0 @@
-/**
- * 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.hdfs.protocol;
-
-import org.apache.commons.lang.builder.HashCodeBuilder;
-import org.apache.hadoop.classification.InterfaceAudience;
-
-/**
- * Internal class similar to an {@link EncryptionZone} which also holds a
- * unique id. Used to implement batched listing of encryption zones.
- */
-@InterfaceAudience.Private
-public class EncryptionZoneWithId extends EncryptionZone {
-
-  final long id;
-
-  public EncryptionZoneWithId(String path, String keyName, long id) {
-    super(path, keyName);
-    this.id = id;
-  }
-
-  public long getId() {
-    return id;
-  }
-
-  EncryptionZone toEncryptionZone() {
-    return new EncryptionZone(getPath(), getKeyName());
-  }
-
-  @Override
-  public int hashCode() {
-    return new HashCodeBuilder(17, 29)
-        .append(super.hashCode())
-        .append(id)
-        .toHashCode();
-  }
-
-  @Override
-  public boolean equals(Object o) {
-    if (this == o) {
-      return true;
-    }
-    if (o == null || getClass() != o.getClass()) {
-      return false;
-    }
-    if (!super.equals(o)) {
-      return false;
-    }
-
-    EncryptionZoneWithId that = (EncryptionZoneWithId) o;
-
-    if (id != that.id) {
-      return false;
-    }
-
-    return true;
-  }
-
-  @Override
-  public String toString() {
-    return "EncryptionZoneWithId [" +
-        "id=" + id +
-        ", " + super.toString() +
-        ']';
-  }
-}

http://git-wip-us.apache.org/repos/asf/hadoop/blob/33ce887c/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZoneWithIdIterator.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZoneWithIdIterator.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZoneWithIdIterator.java
deleted file mode 100644
index 78c7b62..0000000
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/EncryptionZoneWithIdIterator.java
+++ /dev/null
@@ -1,53 +0,0 @@
-/**
- * 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.hdfs.protocol;
-
-import java.io.IOException;
-
-import org.apache.hadoop.classification.InterfaceAudience;
-import org.apache.hadoop.classification.InterfaceStability;
-import org.apache.hadoop.fs.BatchedRemoteIterator;
-
-/**
- * Used on the client-side to iterate over the list of encryption zones
- * stored on the namenode.
- */
-@InterfaceAudience.Private
-@InterfaceStability.Evolving
-public class EncryptionZoneWithIdIterator
-    extends BatchedRemoteIterator<Long, EncryptionZoneWithId> {
-
-  private final ClientProtocol namenode;
-
-  EncryptionZoneWithIdIterator(ClientProtocol namenode) {
-    super(Long.valueOf(0));
-    this.namenode = namenode;
-  }
-
-  @Override
-  public BatchedEntries<EncryptionZoneWithId> makeRequest(Long prevId)
-      throws IOException {
-    return namenode.listEncryptionZones(prevId);
-  }
-
-  @Override
-  public Long elementToPrevKey(EncryptionZoneWithId entry) {
-    return entry.getId();
-  }
-}

http://git-wip-us.apache.org/repos/asf/hadoop/blob/33ce887c/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientNamenodeProtocolServerSideTranslatorPB.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientNamenodeProtocolServerSideTranslatorPB.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientNamenodeProtocolServerSideTranslatorPB.java
index a162ec5..5af349e 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientNamenodeProtocolServerSideTranslatorPB.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientNamenodeProtocolServerSideTranslatorPB.java
@@ -32,7 +32,7 @@ import org.apache.hadoop.hdfs.protocol.CachePoolEntry;
 import org.apache.hadoop.hdfs.protocol.ClientProtocol;
 import org.apache.hadoop.hdfs.protocol.CorruptFileBlocks;
 import org.apache.hadoop.hdfs.protocol.DirectoryListing;
-import org.apache.hadoop.hdfs.protocol.EncryptionZoneWithId;
+import org.apache.hadoop.hdfs.protocol.EncryptionZone;
 import org.apache.hadoop.hdfs.protocol.HdfsFileStatus;
 import org.apache.hadoop.hdfs.protocol.LocatedBlock;
 import org.apache.hadoop.hdfs.protocol.LocatedBlocks;
@@ -1331,7 +1331,7 @@ public class ClientNamenodeProtocolServerSideTranslatorPB implements
     try {
       GetEZForPathResponseProto.Builder builder =
           GetEZForPathResponseProto.newBuilder();
-      final EncryptionZoneWithId ret = server.getEZForPath(req.getSrc());
+      final EncryptionZone ret = server.getEZForPath(req.getSrc());
       builder.setZone(PBHelper.convert(ret));
       return builder.build();
     } catch (IOException e) {
@@ -1344,7 +1344,7 @@ public class ClientNamenodeProtocolServerSideTranslatorPB implements
     RpcController controller, ListEncryptionZonesRequestProto req)
     throws ServiceException {
     try {
-      BatchedEntries<EncryptionZoneWithId> entries = server
+      BatchedEntries<EncryptionZone> entries = server
           .listEncryptionZones(req.getId());
       ListEncryptionZonesResponseProto.Builder builder =
           ListEncryptionZonesResponseProto.newBuilder();

http://git-wip-us.apache.org/repos/asf/hadoop/blob/33ce887c/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientNamenodeProtocolTranslatorPB.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientNamenodeProtocolTranslatorPB.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientNamenodeProtocolTranslatorPB.java
index 79c4fcf..17e4439 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientNamenodeProtocolTranslatorPB.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientNamenodeProtocolTranslatorPB.java
@@ -55,7 +55,7 @@ import org.apache.hadoop.hdfs.protocol.DSQuotaExceededException;
 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.EncryptionZoneWithId;
+import org.apache.hadoop.hdfs.protocol.EncryptionZone;
 import org.apache.hadoop.hdfs.protocol.ExtendedBlock;
 import org.apache.hadoop.hdfs.protocol.HdfsConstants.DatanodeReportType;
 import org.apache.hadoop.hdfs.protocol.HdfsConstants.RollingUpgradeAction;
@@ -186,7 +186,7 @@ import com.google.protobuf.ServiceException;
 
 import static org.apache.hadoop.fs.BatchedRemoteIterator.BatchedListEntries;
 import static org.apache.hadoop.hdfs.protocol.proto.EncryptionZonesProtos
-    .EncryptionZoneWithIdProto;
+    .EncryptionZoneProto;
 
 /**
  * This class forwards NN's ClientProtocol calls as RPC calls to the NN server
@@ -1331,7 +1331,7 @@ public class ClientNamenodeProtocolTranslatorPB implements
   }
 
   @Override
-  public EncryptionZoneWithId getEZForPath(String src)
+  public EncryptionZone getEZForPath(String src)
       throws IOException {
     final GetEZForPathRequestProto.Builder builder =
         GetEZForPathRequestProto.newBuilder();
@@ -1347,7 +1347,7 @@ public class ClientNamenodeProtocolTranslatorPB implements
   }
 
   @Override
-  public BatchedEntries<EncryptionZoneWithId> listEncryptionZones(long id)
+  public BatchedEntries<EncryptionZone> listEncryptionZones(long id)
       throws IOException {
     final ListEncryptionZonesRequestProto req =
       ListEncryptionZonesRequestProto.newBuilder()
@@ -1356,12 +1356,12 @@ public class ClientNamenodeProtocolTranslatorPB implements
     try {
       EncryptionZonesProtos.ListEncryptionZonesResponseProto response =
           rpcProxy.listEncryptionZones(null, req);
-      List<EncryptionZoneWithId> elements =
+      List<EncryptionZone> elements =
           Lists.newArrayListWithCapacity(response.getZonesCount());
-      for (EncryptionZoneWithIdProto p : response.getZonesList()) {
+      for (EncryptionZoneProto p : response.getZonesList()) {
         elements.add(PBHelper.convert(p));
       }
-      return new BatchedListEntries<EncryptionZoneWithId>(elements,
+      return new BatchedListEntries<EncryptionZone>(elements,
           response.getHasMore());
     } catch (ServiceException e) {
       throw ProtobufHelper.getRemoteException(e);

http://git-wip-us.apache.org/repos/asf/hadoop/blob/33ce887c/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelper.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelper.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelper.java
index 193b826..64a6cfa 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelper.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelper.java
@@ -19,7 +19,7 @@ package org.apache.hadoop.hdfs.protocolPB;
 
 import static com.google.common.base.Preconditions.checkNotNull;
 import static org.apache.hadoop.hdfs.protocol.proto.EncryptionZonesProtos
-    .EncryptionZoneWithIdProto;
+    .EncryptionZoneProto;
 
 import java.io.EOFException;
 import java.io.IOException;
@@ -63,7 +63,7 @@ import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
 import org.apache.hadoop.hdfs.protocol.DatanodeInfo.AdminStates;
 import org.apache.hadoop.hdfs.protocol.DatanodeLocalInfo;
 import org.apache.hadoop.hdfs.protocol.DirectoryListing;
-import org.apache.hadoop.hdfs.protocol.EncryptionZoneWithId;
+import org.apache.hadoop.hdfs.protocol.EncryptionZone;
 import org.apache.hadoop.hdfs.protocol.ExtendedBlock;
 import org.apache.hadoop.fs.FileEncryptionInfo;
 import org.apache.hadoop.hdfs.protocol.FsAclPermission;
@@ -2303,15 +2303,15 @@ public class PBHelper {
     return builder.build();
   }
 
-  public static EncryptionZoneWithIdProto convert(EncryptionZoneWithId zone) {
-    return EncryptionZoneWithIdProto.newBuilder()
+  public static EncryptionZoneProto convert(EncryptionZone zone) {
+    return EncryptionZoneProto.newBuilder()
         .setId(zone.getId())
         .setKeyName(zone.getKeyName())
         .setPath(zone.getPath()).build();
   }
 
-  public static EncryptionZoneWithId convert(EncryptionZoneWithIdProto proto) {
-    return new EncryptionZoneWithId(proto.getPath(), proto.getKeyName(),
+  public static EncryptionZone convert(EncryptionZoneProto proto) {
+    return new EncryptionZone(proto.getPath(), proto.getKeyName(),
         proto.getId());
   }
 

http://git-wip-us.apache.org/repos/asf/hadoop/blob/33ce887c/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.java
index f00f132..e72ae12 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.java
@@ -31,7 +31,7 @@ import org.apache.hadoop.fs.XAttr;
 import org.apache.hadoop.fs.XAttrSetFlag;
 import org.apache.hadoop.hdfs.DFSConfigKeys;
 import org.apache.hadoop.hdfs.XAttrHelper;
-import org.apache.hadoop.hdfs.protocol.EncryptionZoneWithId;
+import org.apache.hadoop.hdfs.protocol.EncryptionZone;
 import org.apache.hadoop.hdfs.protocol.SnapshotAccessControlException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -53,8 +53,8 @@ public class EncryptionZoneManager {
   public static Logger LOG = LoggerFactory.getLogger(EncryptionZoneManager
       .class);
 
-  private static final EncryptionZoneWithId NULL_EZ =
-      new EncryptionZoneWithId("", "", -1);
+  private static final EncryptionZone NULL_EZ =
+      new EncryptionZone("", "", -1);
 
   /**
    * EncryptionZoneInt is the internal representation of an encryption zone. The
@@ -196,18 +196,18 @@ public class EncryptionZoneManager {
   }
 
   /**
-   * Returns an EncryptionZoneWithId representing the ez for a given path.
-   * Returns an empty marker EncryptionZoneWithId if path is not in an ez.
+   * Returns an EncryptionZone representing the ez for a given path.
+   * Returns an empty marker EncryptionZone if path is not in an ez.
    *
    * @param iip The INodesInPath of the path to check
-   * @return the EncryptionZoneWithId representing the ez for the path.
+   * @return the EncryptionZone representing the ez for the path.
    */
-  EncryptionZoneWithId getEZINodeForPath(INodesInPath iip) {
+  EncryptionZone getEZINodeForPath(INodesInPath iip) {
     final EncryptionZoneInt ezi = getEncryptionZoneForPath(iip);
     if (ezi == null) {
       return NULL_EZ;
     } else {
-      return new EncryptionZoneWithId(getFullPathName(ezi), ezi.getKeyName(),
+      return new EncryptionZone(getFullPathName(ezi), ezi.getKeyName(),
           ezi.getINodeId());
     }
   }
@@ -300,19 +300,19 @@ public class EncryptionZoneManager {
    * <p/>
    * Called while holding the FSDirectory lock.
    */
-  BatchedListEntries<EncryptionZoneWithId> listEncryptionZones(long prevId)
+  BatchedListEntries<EncryptionZone> listEncryptionZones(long prevId)
       throws IOException {
     assert dir.hasReadLock();
     NavigableMap<Long, EncryptionZoneInt> tailMap = encryptionZones.tailMap
         (prevId, false);
     final int numResponses = Math.min(maxListEncryptionZonesResponses,
         tailMap.size());
-    final List<EncryptionZoneWithId> zones =
+    final List<EncryptionZone> zones =
         Lists.newArrayListWithExpectedSize(numResponses);
 
     int count = 0;
     for (EncryptionZoneInt ezi : tailMap.values()) {
-      zones.add(new EncryptionZoneWithId(getFullPathName(ezi),
+      zones.add(new EncryptionZone(getFullPathName(ezi),
           ezi.getKeyName(), ezi.getINodeId()));
       count++;
       if (count >= numResponses) {
@@ -320,6 +320,6 @@ public class EncryptionZoneManager {
       }
     }
     final boolean hasMore = (numResponses < tailMap.size());
-    return new BatchedListEntries<EncryptionZoneWithId>(zones, hasMore);
+    return new BatchedListEntries<EncryptionZone>(zones, hasMore);
   }
 }

http://git-wip-us.apache.org/repos/asf/hadoop/blob/33ce887c/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
index e4bb93b..836ebd2 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
@@ -59,7 +59,7 @@ import org.apache.hadoop.hdfs.protocol.AclException;
 import org.apache.hadoop.hdfs.protocol.Block;
 import org.apache.hadoop.hdfs.protocol.ClientProtocol;
 import org.apache.hadoop.hdfs.protocol.DirectoryListing;
-import org.apache.hadoop.hdfs.protocol.EncryptionZoneWithId;
+import org.apache.hadoop.hdfs.protocol.EncryptionZone;
 import org.apache.hadoop.hdfs.protocol.FSLimitException.MaxDirectoryItemsExceededException;
 import org.apache.hadoop.hdfs.protocol.FSLimitException.PathComponentTooLongException;
 import org.apache.hadoop.hdfs.protocol.FsAclPermission;
@@ -2671,7 +2671,7 @@ public class FSDirectory implements Closeable {
     }
   }
 
-  EncryptionZoneWithId getEZForPath(INodesInPath iip) {
+  EncryptionZone getEZForPath(INodesInPath iip) {
     readLock();
     try {
       return ezManager.getEZINodeForPath(iip);
@@ -2680,7 +2680,7 @@ public class FSDirectory implements Closeable {
     }
   }
 
-  BatchedListEntries<EncryptionZoneWithId> listEncryptionZones(long prevId)
+  BatchedListEntries<EncryptionZone> listEncryptionZones(long prevId)
       throws IOException {
     readLock();
     try {

http://git-wip-us.apache.org/repos/asf/hadoop/blob/33ce887c/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
index 0ebbc1d..de2fdea 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
@@ -178,7 +178,7 @@ import org.apache.hadoop.hdfs.protocol.ClientProtocol;
 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.EncryptionZoneWithId;
+import org.apache.hadoop.hdfs.protocol.EncryptionZone;
 import org.apache.hadoop.hdfs.protocol.ExtendedBlock;
 import org.apache.hadoop.hdfs.protocol.HdfsConstants;
 import org.apache.hadoop.hdfs.protocol.HdfsConstants.DatanodeReportType;
@@ -8629,7 +8629,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
    * @throws AccessControlException  if the caller is not the superuser.
    * @throws UnresolvedLinkException if the path can't be resolved.
    */
-  EncryptionZoneWithId getEZForPath(final String srcArg)
+  EncryptionZone getEZForPath(final String srcArg)
     throws AccessControlException, UnresolvedLinkException, IOException {
     String src = srcArg;
     HdfsFileStatus resultingStat = null;
@@ -8646,7 +8646,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
       checkOperation(OperationCategory.READ);
       src = resolvePath(src, pathComponents);
       final INodesInPath iip = dir.getINodesInPath(src, true);
-      final EncryptionZoneWithId ret = dir.getEZForPath(iip);
+      final EncryptionZone ret = dir.getEZForPath(iip);
       resultingStat = getAuditFileInfo(src, false);
       success = true;
       return ret;
@@ -8656,7 +8656,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
     }
   }
 
-  BatchedListEntries<EncryptionZoneWithId> listEncryptionZones(long prevId)
+  BatchedListEntries<EncryptionZone> listEncryptionZones(long prevId)
       throws IOException {
     boolean success = false;
     checkSuperuserPrivilege();
@@ -8665,7 +8665,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
     try {
       checkSuperuserPrivilege();
       checkOperation(OperationCategory.READ);
-      final BatchedListEntries<EncryptionZoneWithId> ret =
+      final BatchedListEntries<EncryptionZone> ret =
           dir.listEncryptionZones(prevId);
       success = true;
       return ret;

http://git-wip-us.apache.org/repos/asf/hadoop/blob/33ce887c/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNodeRpcServer.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNodeRpcServer.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNodeRpcServer.java
index e62d162..1a3b2e1 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNodeRpcServer.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNodeRpcServer.java
@@ -81,7 +81,7 @@ import org.apache.hadoop.hdfs.protocol.DSQuotaExceededException;
 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.EncryptionZoneWithId;
+import org.apache.hadoop.hdfs.protocol.EncryptionZone;
 import org.apache.hadoop.hdfs.protocol.ExtendedBlock;
 import org.apache.hadoop.hdfs.protocol.FSLimitException;
 import org.apache.hadoop.hdfs.protocol.HdfsConstants;
@@ -1437,13 +1437,13 @@ class NameNodeRpcServer implements NamenodeProtocols {
   }
 
   @Override
-  public EncryptionZoneWithId getEZForPath(String src)
+  public EncryptionZone getEZForPath(String src)
     throws IOException {
     return namesystem.getEZForPath(src);
   }
 
   @Override
-  public BatchedEntries<EncryptionZoneWithId> listEncryptionZones(
+  public BatchedEntries<EncryptionZone> listEncryptionZones(
       long prevId) throws IOException {
     return namesystem.listEncryptionZones(prevId);
   }

http://git-wip-us.apache.org/repos/asf/hadoop/blob/33ce887c/hadoop-hdfs-project/hadoop-hdfs/src/main/proto/encryption.proto
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/proto/encryption.proto b/hadoop-hdfs-project/hadoop-hdfs/src/main/proto/encryption.proto
index ecf0970..1a33cdc 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/proto/encryption.proto
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/proto/encryption.proto
@@ -45,14 +45,14 @@ message ListEncryptionZonesRequestProto {
   required int64 id = 1;
 }
 
-message EncryptionZoneWithIdProto {
+message EncryptionZoneProto {
   required string path = 1;
   required string keyName = 2;
   required int64 id = 3;
 }
 
 message ListEncryptionZonesResponseProto {
-  repeated EncryptionZoneWithIdProto zones = 1;
+  repeated EncryptionZoneProto zones = 1;
   required bool hasMore = 2;
 }
 
@@ -61,5 +61,5 @@ message GetEZForPathRequestProto {
 }
 
 message GetEZForPathResponseProto {
-    required EncryptionZoneWithIdProto zone = 1;
+    required EncryptionZoneProto zone = 1;
 }


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