HDFS-6892. Add XDR packaging method for each NFS request. Contributed by Brandon Li

(cherry picked from commit cd9182d8b5)

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/ACCESS3Request.java

@@ -19,13 +19,24 @@ package org.apache.hadoop.nfs.nfs3.request;
 
 import java.io.IOException;
 
+import org.apache.hadoop.nfs.nfs3.FileHandle;
 import org.apache.hadoop.oncrpc.XDR;
 
 /**
  * ACCESS3 Request
  */
 public class ACCESS3Request extends RequestWithHandle {
-  public ACCESS3Request(XDR xdr) throws IOException {
+  public static ACCESS3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
+    return new ACCESS3Request(handle);
+  }
+
+  public ACCESS3Request(FileHandle handle) {
+    super(handle);
+  }
+  
+  @Override
+  public void serialize(XDR xdr) {
+    handle.serialize(xdr);    
   }
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/COMMIT3Request.java

@@ -19,6 +19,7 @@ package org.apache.hadoop.nfs.nfs3.request;
 
 import java.io.IOException;
 
+import org.apache.hadoop.nfs.nfs3.FileHandle;
 import org.apache.hadoop.oncrpc.XDR;
 
 /**
@@ -28,10 +29,17 @@ public class COMMIT3Request extends RequestWithHandle {
   private final long offset;
   private final int count;
 
-  public COMMIT3Request(XDR xdr) throws IOException {
+  public static COMMIT3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
-    offset = xdr.readHyper();
+    long offset = xdr.readHyper();
-    count = xdr.readInt();
+    int count = xdr.readInt();
+    return new COMMIT3Request(handle, offset, count);
+  }
+  
+  public COMMIT3Request(FileHandle handle, long offset, int count) {
+    super(handle);
+    this.offset = offset;
+    this.count = count;
   }
 
   public long getOffset() {
@@ -41,4 +49,11 @@ public class COMMIT3Request extends RequestWithHandle {
   public int getCount() {
     return this.count;
   }
+
+  @Override
+  public void serialize(XDR xdr) {
+    handle.serialize(xdr); 
+    xdr.writeLongAsHyper(offset);
+    xdr.writeInt(count);
+  }
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/CREATE3Request.java

@@ -29,8 +29,8 @@ import org.apache.hadoop.oncrpc.XDR;
 public class CREATE3Request extends RequestWithHandle {
   private final String name;
   private final int mode;
-  private SetAttr3 objAttr = null;
+  private final SetAttr3 objAttr;
-  private long verf;
+  private long verf = 0;
 
   public CREATE3Request(FileHandle handle, String name, int mode,
       SetAttr3 objAttr, long verf) {
@@ -41,12 +41,12 @@ public class CREATE3Request extends RequestWithHandle {
     this.verf = verf;
   }
   
-  public CREATE3Request(XDR xdr) throws IOException {
+  public static CREATE3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
-    name = xdr.readString();
+    String name = xdr.readString();
-    mode = xdr.readInt();
+    int mode = xdr.readInt();
-
+    SetAttr3 objAttr = new SetAttr3();
-    objAttr = new SetAttr3();
+    long verf = 0;
     if ((mode == Nfs3Constant.CREATE_UNCHECKED)
         || (mode == Nfs3Constant.CREATE_GUARDED)) {
       objAttr.deserialize(xdr);
@@ -55,6 +55,7 @@ public class CREATE3Request extends RequestWithHandle {
     } else {
       throw new IOException("Wrong create mode:" + mode);
     }
+    return new CREATE3Request(handle, name, mode, objAttr, verf);
   }
 
   public String getName() {
@@ -81,4 +82,5 @@ public class CREATE3Request extends RequestWithHandle {
     xdr.writeInt(mode);
     objAttr.serialize(xdr);
   }
+
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/FSINFO3Request.java

@@ -19,13 +19,24 @@ package org.apache.hadoop.nfs.nfs3.request;
 
 import java.io.IOException;
 
+import org.apache.hadoop.nfs.nfs3.FileHandle;
 import org.apache.hadoop.oncrpc.XDR;
 
 /**
  * FSINFO3 Request
  */
 public class FSINFO3Request extends RequestWithHandle {
-  public FSINFO3Request(XDR xdr) throws IOException {
+  public static FSINFO3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
+    return new FSINFO3Request(handle);
+  }
+
+  public FSINFO3Request(FileHandle handle) {
+    super(handle);
+  }
+  
+  @Override
+  public void serialize(XDR xdr) {
+    handle.serialize(xdr);    
   }
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/FSSTAT3Request.java

@@ -19,13 +19,24 @@ package org.apache.hadoop.nfs.nfs3.request;
 
 import java.io.IOException;
 
+import org.apache.hadoop.nfs.nfs3.FileHandle;
 import org.apache.hadoop.oncrpc.XDR;
 
 /**
  * FSSTAT3 Request
  */
 public class FSSTAT3Request extends RequestWithHandle {
-  public FSSTAT3Request(XDR xdr) throws IOException {
+  public static FSSTAT3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
+    return new FSSTAT3Request(handle);
+  }
+
+  public FSSTAT3Request(FileHandle handle) {
+    super(handle);
+  }
+  
+  @Override
+  public void serialize(XDR xdr) {
+    handle.serialize(xdr);    
   }
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/GETATTR3Request.java

@@ -19,13 +19,24 @@ package org.apache.hadoop.nfs.nfs3.request;
 
 import java.io.IOException;
 
+import org.apache.hadoop.nfs.nfs3.FileHandle;
 import org.apache.hadoop.oncrpc.XDR;
 
 /**
  * GETATTR3 Request
  */
 public class GETATTR3Request extends RequestWithHandle {
-  public GETATTR3Request(XDR xdr) throws IOException {
+  public static GETATTR3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
+    return new GETATTR3Request(handle);
+  }
+
+  public GETATTR3Request(FileHandle handle) {
+    super(handle);
+  }
+  
+  @Override
+  public void serialize(XDR xdr) {
+    handle.serialize(xdr);    
   }
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/LOOKUP3Request.java

@@ -35,9 +35,10 @@ public class LOOKUP3Request extends RequestWithHandle {
     this.name = name;
   }
   
-  public LOOKUP3Request(XDR xdr) throws IOException {
+  public static LOOKUP3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
-    name = xdr.readString();
+    String name = xdr.readString();
+    return new LOOKUP3Request(handle, name);
   }
 
   public String getName() {
@@ -51,7 +52,7 @@ public class LOOKUP3Request extends RequestWithHandle {
   @Override
   @VisibleForTesting
   public void serialize(XDR xdr) {
-    super.serialize(xdr);
+    handle.serialize(xdr);
     xdr.writeInt(name.getBytes().length);
     xdr.writeFixedOpaque(name.getBytes());
   }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/MKDIR3Request.java

@@ -19,6 +19,7 @@ package org.apache.hadoop.nfs.nfs3.request;
 
 import java.io.IOException;
 
+import org.apache.hadoop.nfs.nfs3.FileHandle;
 import org.apache.hadoop.oncrpc.XDR;
 
 /**
@@ -28,11 +29,18 @@ public class MKDIR3Request extends RequestWithHandle {
   private final String name;
   private final SetAttr3 objAttr;
 
-  public MKDIR3Request(XDR xdr) throws IOException {
+  public static MKDIR3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
-    name = xdr.readString();
+    String name = xdr.readString();
-    objAttr = new SetAttr3();
+    SetAttr3 objAttr = new SetAttr3();
     objAttr.deserialize(xdr);
+    return new MKDIR3Request(handle, name, objAttr);
+  }
+
+  public MKDIR3Request(FileHandle handle, String name, SetAttr3 objAttr) {
+    super(handle);
+    this.name = name;
+    this.objAttr = objAttr;
   }
 
   public String getName() {
@@ -42,4 +50,12 @@ public class MKDIR3Request extends RequestWithHandle {
   public SetAttr3 getObjAttr() {
     return objAttr;
   }
+
+  @Override
+  public void serialize(XDR xdr) {
+    handle.serialize(xdr);
+    xdr.writeInt(name.getBytes().length);
+    xdr.writeFixedOpaque(name.getBytes());
+    objAttr.serialize(xdr);
+  }
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/NFS3Request.java

@@ -0,0 +1,45 @@
+/**
+ * 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.nfs.nfs3.request;
+
+import java.io.IOException;
+
+import org.apache.hadoop.nfs.nfs3.FileHandle;
+import org.apache.hadoop.oncrpc.XDR;
+
+/**
+ * An NFS request that uses {@link FileHandle} to identify a file.
+ */
+public abstract class NFS3Request {
+  
+  /**
+   * Deserialize a handle from an XDR object
+   */
+  static FileHandle readHandle(XDR xdr) throws IOException {
+    FileHandle handle = new FileHandle();
+    if (!handle.deserialize(xdr)) {
+      throw new IOException("can't deserialize file handle");
+    }
+    return handle;
+  }
+  
+  /**
+   * Subclass should implement. Usually handle is the first to be serialized
+   */
+  public abstract void serialize(XDR xdr);
+}

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/PATHCONF3Request.java

@@ -19,13 +19,24 @@ package org.apache.hadoop.nfs.nfs3.request;
 
 import java.io.IOException;
 
+import org.apache.hadoop.nfs.nfs3.FileHandle;
 import org.apache.hadoop.oncrpc.XDR;
 
 /**
  * PATHCONF3 Request
  */
 public class PATHCONF3Request extends RequestWithHandle {
-  public PATHCONF3Request(XDR xdr) throws IOException {
+  public static PATHCONF3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
+    return new PATHCONF3Request(handle);
+  }
+  
+  public PATHCONF3Request(FileHandle handle) {
+    super(handle);
+  }
+  
+  @Override
+  public void serialize(XDR xdr) {
+    handle.serialize(xdr);
   }
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/READ3Request.java

@@ -31,10 +31,11 @@ public class READ3Request extends RequestWithHandle {
   private final long offset;
   private final int count;
 
-  public READ3Request(XDR xdr) throws IOException {
+  public static READ3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
-    offset = xdr.readHyper();
+    long offset = xdr.readHyper();
-    count = xdr.readInt();
+    int count = xdr.readInt();
+    return new READ3Request(handle, offset, count);
   }
 
   @VisibleForTesting

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/READDIR3Request.java

@@ -19,6 +19,7 @@ package org.apache.hadoop.nfs.nfs3.request;
 
 import java.io.IOException;
 
+import org.apache.hadoop.nfs.nfs3.FileHandle;
 import org.apache.hadoop.oncrpc.XDR;
 
 /**
@@ -29,11 +30,20 @@ public class READDIR3Request extends RequestWithHandle {
   private final long cookieVerf;
   private final int count;
 
-  public READDIR3Request(XDR xdr) throws IOException {
+  public static READDIR3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
-    cookie = xdr.readHyper();
+    long cookie = xdr.readHyper();
-    cookieVerf = xdr.readHyper();
+    long cookieVerf = xdr.readHyper();
-    count = xdr.readInt();
+    int count = xdr.readInt();
+    return new READDIR3Request(handle, cookie, cookieVerf, count);
+  }
+  
+  public READDIR3Request(FileHandle handle, long cookie, long cookieVerf,
+      int count) {
+    super(handle);
+    this.cookie = cookie;
+    this.cookieVerf = cookieVerf;
+    this.count = count;
   }
   
   public long getCookie() {
@@ -47,4 +57,12 @@ public class READDIR3Request extends RequestWithHandle {
   public long getCount() {
     return this.count;
   }
+
+  @Override
+  public void serialize(XDR xdr) {
+    handle.serialize(xdr);
+    xdr.writeLongAsHyper(cookie);
+    xdr.writeLongAsHyper(cookieVerf);
+    xdr.writeInt(count);
+  }
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/READDIRPLUS3Request.java

@@ -19,6 +19,7 @@ package org.apache.hadoop.nfs.nfs3.request;
 
 import java.io.IOException;
 
+import org.apache.hadoop.nfs.nfs3.FileHandle;
 import org.apache.hadoop.oncrpc.XDR;
 
 /**
@@ -30,12 +31,23 @@ public class READDIRPLUS3Request extends RequestWithHandle {
   private final int dirCount;
   private final int maxCount;
 
-  public READDIRPLUS3Request(XDR xdr) throws IOException {
+  public static READDIRPLUS3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
-    cookie = xdr.readHyper();
+    long cookie = xdr.readHyper();
-    cookieVerf = xdr.readHyper();
+    long cookieVerf = xdr.readHyper();
-    dirCount = xdr.readInt();
+    int dirCount = xdr.readInt();
-    maxCount = xdr.readInt();
+    int maxCount = xdr.readInt();
+    return new READDIRPLUS3Request(handle, cookie, cookieVerf, dirCount,
+        maxCount);
+  }
+
+  public READDIRPLUS3Request(FileHandle handle, long cookie, long cookieVerf,
+      int dirCount, int maxCount) {
+    super(handle);
+    this.cookie = cookie;
+    this.cookieVerf = cookieVerf;
+    this.dirCount = dirCount;
+    this.maxCount = maxCount;
   }
   
   public long getCookie() {
@@ -53,4 +65,13 @@ public class READDIRPLUS3Request extends RequestWithHandle {
   public int getMaxCount() {
     return maxCount;
   }
+
+  @Override
+  public void serialize(XDR xdr) {
+    handle.serialize(xdr);
+    xdr.writeLongAsHyper(cookie);
+    xdr.writeLongAsHyper(cookieVerf);
+    xdr.writeInt(dirCount);
+    xdr.writeInt(maxCount);
+  }
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/READLINK3Request.java

@@ -19,6 +19,7 @@ package org.apache.hadoop.nfs.nfs3.request;
 
 import java.io.IOException;
 
+import org.apache.hadoop.nfs.nfs3.FileHandle;
 import org.apache.hadoop.oncrpc.XDR;
 
 /**
@@ -26,7 +27,17 @@ import org.apache.hadoop.oncrpc.XDR;
  */
 public class READLINK3Request extends RequestWithHandle {
 
-  public READLINK3Request(XDR xdr) throws IOException {
+  public static READLINK3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
+    return new READLINK3Request(handle);
+  }
+  
+  public READLINK3Request(FileHandle handle) {
+    super(handle);
+  }
+  
+  @Override
+  public void serialize(XDR xdr) {
+    handle.serialize(xdr);   
   }
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/REMOVE3Request.java

@@ -19,6 +19,7 @@ package org.apache.hadoop.nfs.nfs3.request;
 
 import java.io.IOException;
 
+import org.apache.hadoop.nfs.nfs3.FileHandle;
 import org.apache.hadoop.oncrpc.XDR;
 
 /**
@@ -27,12 +28,25 @@ import org.apache.hadoop.oncrpc.XDR;
 public class REMOVE3Request extends RequestWithHandle {
   private final String name;
 
-  public REMOVE3Request(XDR xdr) throws IOException {
+  public static REMOVE3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
-    name = xdr.readString();
+    String name = xdr.readString();
+    return new REMOVE3Request(handle, name);
+  }
+
+  public REMOVE3Request(FileHandle handle, String name) {
+    super(handle);
+    this.name = name;
   }
   
   public String getName() {
     return this.name;
   }
+
+  @Override
+  public void serialize(XDR xdr) {
+    handle.serialize(xdr);
+    xdr.writeInt(name.getBytes().length);
+    xdr.writeFixedOpaque(name.getBytes());
+  }
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/RENAME3Request.java

@@ -25,23 +25,26 @@ import org.apache.hadoop.oncrpc.XDR;
 /**
  * RENAME3 Request
  */
-public class RENAME3Request {
+public class RENAME3Request extends NFS3Request {
   private final FileHandle fromDirHandle;
   private final String fromName;
   private final FileHandle toDirHandle;
   private final String toName;
   
-  public RENAME3Request(XDR xdr) throws IOException {
+  public static RENAME3Request deserialize(XDR xdr) throws IOException {
-    fromDirHandle = new FileHandle();
+    FileHandle fromDirHandle = readHandle(xdr);
-    if (!fromDirHandle.deserialize(xdr)) {
+    String fromName = xdr.readString();
-      throw new IOException("can't deserialize file handle");
+    FileHandle toDirHandle = readHandle(xdr);
+    String toName = xdr.readString();
+    return new RENAME3Request(fromDirHandle, fromName, toDirHandle, toName);
   }
-    fromName = xdr.readString();
+  
-    toDirHandle = new FileHandle();
+  public RENAME3Request(FileHandle fromDirHandle, String fromName,
-    if (!toDirHandle.deserialize(xdr)) {
+      FileHandle toDirHandle, String toName) {
-      throw new IOException("can't deserialize file handle");
+    this.fromDirHandle = fromDirHandle;
-    }
+    this.fromName = fromName;
-    toName = xdr.readString();
+    this.toDirHandle = toDirHandle;
+    this.toName = toName;
   }
   
   public FileHandle getFromDirHandle() {
@@ -59,4 +62,14 @@ public class RENAME3Request {
   public String getToName() {
     return toName;
   }
+
+  @Override
+  public void serialize(XDR xdr) {
+    fromDirHandle.serialize(xdr);
+    xdr.writeInt(fromName.getBytes().length);
+    xdr.writeFixedOpaque(fromName.getBytes());
+    toDirHandle.serialize(xdr);
+    xdr.writeInt(toName.getBytes().length);
+    xdr.writeFixedOpaque(toName.getBytes());
+  }
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/RMDIR3Request.java

@@ -19,6 +19,7 @@ package org.apache.hadoop.nfs.nfs3.request;
 
 import java.io.IOException;
 
+import org.apache.hadoop.nfs.nfs3.FileHandle;
 import org.apache.hadoop.oncrpc.XDR;
 
 /**
@@ -27,12 +28,25 @@ import org.apache.hadoop.oncrpc.XDR;
 public class RMDIR3Request extends RequestWithHandle {
   private final String name;
 
-  public RMDIR3Request(XDR xdr) throws IOException {
+  public static RMDIR3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
-    name = xdr.readString();
+    String name = xdr.readString();
+    return new RMDIR3Request(handle, name);
+  }
+
+  public RMDIR3Request(FileHandle handle, String name) {
+    super(handle);
+    this.name = name;
   }
   
   public String getName() {
     return this.name;
   }
+
+  @Override
+  public void serialize(XDR xdr) {
+    handle.serialize(xdr);
+    xdr.writeInt(name.getBytes().length);
+    xdr.writeFixedOpaque(name.getBytes());
+  }
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/RequestWithHandle.java

@@ -17,33 +17,19 @@
  */
 package org.apache.hadoop.nfs.nfs3.request;
 
-import java.io.IOException;
-
 import org.apache.hadoop.nfs.nfs3.FileHandle;
-import org.apache.hadoop.oncrpc.XDR;
 
 /**
  * An NFS request that uses {@link FileHandle} to identify a file.
  */
-public class RequestWithHandle {
+public abstract class RequestWithHandle extends NFS3Request {
   protected final FileHandle handle;
   
   RequestWithHandle(FileHandle handle) {
     this.handle = handle;
   }
 
-  RequestWithHandle(XDR xdr) throws IOException {
-    handle = new FileHandle();
-    if (!handle.deserialize(xdr)) {
-      throw new IOException("can't deserialize file handle");
-    }
-  }
-
   public FileHandle getHandle() {
     return this.handle;
   }
-  
-  public void serialize(XDR xdr) {
-    handle.serialize(xdr);
-  }
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/SETATTR3Request.java

@@ -20,6 +20,7 @@ package org.apache.hadoop.nfs.nfs3.request;
 import java.io.IOException;
 
 import org.apache.hadoop.nfs.NfsTime;
+import org.apache.hadoop.nfs.nfs3.FileHandle;
 import org.apache.hadoop.oncrpc.XDR;
 
 /**
@@ -38,16 +39,26 @@ public class SETATTR3Request extends RequestWithHandle {
   private final boolean check;
   private final NfsTime ctime;
   
-  public SETATTR3Request(XDR xdr) throws IOException {
+  public static SETATTR3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
-    attr = new SetAttr3();
+    SetAttr3 attr = new SetAttr3();
     attr.deserialize(xdr);
-    check = xdr.readBoolean();
+    boolean check = xdr.readBoolean();
+    NfsTime ctime;
     if (check) {
       ctime = NfsTime.deserialize(xdr);
     } else {
       ctime = null;
     }
+    return new SETATTR3Request(handle, attr, check, ctime);
+  }
+  
+  public SETATTR3Request(FileHandle handle, SetAttr3 attr, boolean check,
+      NfsTime ctime) {
+    super(handle);
+    this.attr = attr;
+    this.check = check;
+    this.ctime = ctime;
   }
   
   public SetAttr3 getAttr() {
@@ -61,4 +72,14 @@ public class SETATTR3Request extends RequestWithHandle {
   public NfsTime getCtime() {
     return ctime;
   }
+
+  @Override
+  public void serialize(XDR xdr) {
+    handle.serialize(xdr);
+    attr.serialize(xdr);
+    xdr.writeBoolean(check);
+    if (check) {
+      ctime.serialize(xdr);
+    }
+  }
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/SYMLINK3Request.java

@@ -19,6 +19,7 @@ package org.apache.hadoop.nfs.nfs3.request;
 
 import java.io.IOException;
 
+import org.apache.hadoop.nfs.nfs3.FileHandle;
 import org.apache.hadoop.oncrpc.XDR;
 
 /**
@@ -29,12 +30,21 @@ public class SYMLINK3Request extends RequestWithHandle {
   private final SetAttr3 symAttr;
   private final String symData;  // It contains the target
   
-  public SYMLINK3Request(XDR xdr) throws IOException {
+  public static SYMLINK3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
-    name = xdr.readString();
+    String name = xdr.readString();
-    symAttr = new SetAttr3();
+    SetAttr3 symAttr = new SetAttr3();
     symAttr.deserialize(xdr);
-    symData = xdr.readString();
+    String symData = xdr.readString();
+    return new SYMLINK3Request(handle, name, symAttr, symData);
+  }
+
+  public SYMLINK3Request(FileHandle handle, String name, SetAttr3 symAttr,
+      String symData) {
+    super(handle);
+    this.name = name;
+    this.symAttr = symAttr;
+    this.symData = symData;
   }
   
   public String getName() {
@@ -48,4 +58,14 @@ public class SYMLINK3Request extends RequestWithHandle {
   public String getSymData() {
     return symData;
   }
+
+  @Override
+  public void serialize(XDR xdr) {
+    handle.serialize(xdr);
+    xdr.writeInt(name.getBytes().length);
+    xdr.writeFixedOpaque(name.getBytes());
+    symAttr.serialize(xdr);
+    xdr.writeInt(symData.getBytes().length);
+    xdr.writeFixedOpaque(symData.getBytes());
+  }
 }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/SetAttr3.java

@@ -53,6 +53,15 @@ public class SetAttr3 {
     updateFields = EnumSet.noneOf(SetAttrField.class);
   }
   
+  public SetAttr3(int mode, int uid, int gid, long size, NfsTime atime,
+      NfsTime mtime, EnumSet<SetAttrField> updateFields) {
+    this.mode = mode;
+    this.uid = uid;
+    this.gid = gid;
+    this.size = size;
+    this.updateFields = updateFields;
+  }
+
   public int getMode() {
     return mode;
   }

hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/WRITE3Request.java

@@ -33,12 +33,13 @@ public class WRITE3Request extends RequestWithHandle {
   private final WriteStableHow stableHow;
   private final ByteBuffer data;
 
-  public WRITE3Request(XDR xdr) throws IOException {
+  public static WRITE3Request deserialize(XDR xdr) throws IOException {
-    super(xdr);
+    FileHandle handle = readHandle(xdr);
-    offset = xdr.readHyper();
+    long offset = xdr.readHyper();
-    count = xdr.readInt();
+    int count = xdr.readInt();
-    stableHow = WriteStableHow.fromValue(xdr.readInt());
+    WriteStableHow stableHow = WriteStableHow.fromValue(xdr.readInt());
-    data = ByteBuffer.wrap(xdr.readFixedOpaque(xdr.readInt()));
+    ByteBuffer data = ByteBuffer.wrap(xdr.readFixedOpaque(xdr.readInt()));
+    return new WRITE3Request(handle, offset, count, stableHow, data);
   }
 
   public WRITE3Request(FileHandle handle, final long offset, final int count,

hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/RpcProgramNfs3.java

@@ -268,7 +268,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
 
     GETATTR3Request request = null;
     try {
-      request = new GETATTR3Request(xdr);
+      request = GETATTR3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid GETATTR request");
       response.setStatus(Nfs3Status.NFS3ERR_INVAL);
@@ -360,7 +360,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
 
     SETATTR3Request request = null;
     try {
-      request = new SETATTR3Request(xdr);
+      request = SETATTR3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid SETATTR request");
       response.setStatus(Nfs3Status.NFS3ERR_INVAL);
@@ -445,7 +445,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
 
     LOOKUP3Request request = null;
     try {
-      request = new LOOKUP3Request(xdr);
+      request = LOOKUP3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid LOOKUP request");
       return new LOOKUP3Response(Nfs3Status.NFS3ERR_INVAL);
@@ -513,7 +513,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
 
     ACCESS3Request request = null;
     try {
-      request = new ACCESS3Request(xdr);
+      request = ACCESS3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid ACCESS request");
       return new ACCESS3Response(Nfs3Status.NFS3ERR_INVAL);
@@ -581,7 +581,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
     READLINK3Request request = null;
 
     try {
-      request = new READLINK3Request(xdr);
+      request = READLINK3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid READLINK request");
       return new READLINK3Response(Nfs3Status.NFS3ERR_INVAL);
@@ -655,7 +655,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
     READ3Request request = null;
 
     try {
-      request = new READ3Request(xdr);
+      request = READ3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid READ request");
       return new READ3Response(Nfs3Status.NFS3ERR_INVAL);
@@ -788,7 +788,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
     WRITE3Request request = null;
 
     try {
-      request = new WRITE3Request(xdr);
+      request = WRITE3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid WRITE request");
       return new WRITE3Response(Nfs3Status.NFS3ERR_INVAL);
@@ -870,7 +870,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
     CREATE3Request request = null;
 
     try {
-      request = new CREATE3Request(xdr);
+      request = CREATE3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid CREATE request");
       return new CREATE3Response(Nfs3Status.NFS3ERR_INVAL);
@@ -1003,7 +1003,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
     MKDIR3Request request = null;
 
     try {
-      request = new MKDIR3Request(xdr);
+      request = MKDIR3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid MKDIR request");
       return new MKDIR3Response(Nfs3Status.NFS3ERR_INVAL);
@@ -1099,7 +1099,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
 
     REMOVE3Request request = null;
     try {
-      request = new REMOVE3Request(xdr);
+      request = REMOVE3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid REMOVE request");
       return new REMOVE3Response(Nfs3Status.NFS3ERR_INVAL);
@@ -1179,7 +1179,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
 
     RMDIR3Request request = null;
     try {
-      request = new RMDIR3Request(xdr);
+      request = RMDIR3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid RMDIR request");
       return new RMDIR3Response(Nfs3Status.NFS3ERR_INVAL);
@@ -1264,7 +1264,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
 
     RENAME3Request request = null;
     try {
-      request = new RENAME3Request(xdr);
+      request = RENAME3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid RENAME request");
       return new RENAME3Response(Nfs3Status.NFS3ERR_INVAL);
@@ -1360,7 +1360,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
 
     SYMLINK3Request request = null;
     try {
-      request = new SYMLINK3Request(xdr);
+      request = SYMLINK3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid SYMLINK request");
       response.setStatus(Nfs3Status.NFS3ERR_INVAL);
@@ -1453,7 +1453,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
 
     READDIR3Request request = null;
     try {
-      request = new READDIR3Request(xdr);
+      request = READDIR3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid READDIR request");
       return new READDIR3Response(Nfs3Status.NFS3ERR_INVAL);
@@ -1611,7 +1611,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
 
     READDIRPLUS3Request request = null;
     try {
-      request = new READDIRPLUS3Request(xdr);
+      request = READDIRPLUS3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid READDIRPLUS request");
       return new READDIRPLUS3Response(Nfs3Status.NFS3ERR_INVAL);
@@ -1788,7 +1788,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
 
     FSSTAT3Request request = null;
     try {
-      request = new FSSTAT3Request(xdr);
+      request = FSSTAT3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid FSSTAT request");
       return new FSSTAT3Response(Nfs3Status.NFS3ERR_INVAL);
@@ -1862,7 +1862,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
 
     FSINFO3Request request = null;
     try {
-      request = new FSINFO3Request(xdr);
+      request = FSINFO3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid FSINFO request");
       return new FSINFO3Response(Nfs3Status.NFS3ERR_INVAL);
@@ -1926,7 +1926,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
 
     PATHCONF3Request request = null;
     try {
-      request = new PATHCONF3Request(xdr);
+      request = PATHCONF3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid PATHCONF request");
       return new PATHCONF3Response(Nfs3Status.NFS3ERR_INVAL);
@@ -1977,7 +1977,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
 
     COMMIT3Request request = null;
     try {
-      request = new COMMIT3Request(xdr);
+      request = COMMIT3Request.deserialize(xdr);
     } catch (IOException e) {
       LOG.error("Invalid COMMIT request");
       response.setStatus(Nfs3Status.NFS3ERR_INVAL);

hadoop-hdfs-project/hadoop-hdfs-nfs/src/test/java/org/apache/hadoop/hdfs/nfs/nfs3/TestRpcProgramNfs3.java

@@ -17,12 +17,71 @@
  */
 package org.apache.hadoop.hdfs.nfs.nfs3;
 
-import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
 
 import java.io.IOException;
 import java.net.InetSocketAddress;
 import java.nio.ByteBuffer;
+import java.util.EnumSet;
+
+import org.apache.hadoop.fs.CommonConfigurationKeys;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hdfs.DFSTestUtil;
+import org.apache.hadoop.hdfs.DistributedFileSystem;
+import org.apache.hadoop.hdfs.MiniDFSCluster;
+import org.apache.hadoop.hdfs.nfs.conf.NfsConfigKeys;
+import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
+import org.apache.hadoop.hdfs.protocol.HdfsFileStatus;
+import org.apache.hadoop.hdfs.server.namenode.NameNode;
+import org.apache.hadoop.nfs.nfs3.FileHandle;
+import org.apache.hadoop.nfs.nfs3.Nfs3Constant;
+import org.apache.hadoop.nfs.nfs3.Nfs3Constant.WriteStableHow;
+import org.apache.hadoop.nfs.nfs3.Nfs3Status;
+import org.apache.hadoop.nfs.nfs3.request.ACCESS3Request;
+import org.apache.hadoop.nfs.nfs3.request.COMMIT3Request;
+import org.apache.hadoop.nfs.nfs3.request.CREATE3Request;
+import org.apache.hadoop.nfs.nfs3.request.FSINFO3Request;
+import org.apache.hadoop.nfs.nfs3.request.FSSTAT3Request;
+import org.apache.hadoop.nfs.nfs3.request.GETATTR3Request;
+import org.apache.hadoop.nfs.nfs3.request.LOOKUP3Request;
+import org.apache.hadoop.nfs.nfs3.request.MKDIR3Request;
+import org.apache.hadoop.nfs.nfs3.request.PATHCONF3Request;
+import org.apache.hadoop.nfs.nfs3.request.READ3Request;
+import org.apache.hadoop.nfs.nfs3.request.READDIR3Request;
+import org.apache.hadoop.nfs.nfs3.request.READDIRPLUS3Request;
+import org.apache.hadoop.nfs.nfs3.request.READLINK3Request;
+import org.apache.hadoop.nfs.nfs3.request.REMOVE3Request;
+import org.apache.hadoop.nfs.nfs3.request.RENAME3Request;
+import org.apache.hadoop.nfs.nfs3.request.RMDIR3Request;
+import org.apache.hadoop.nfs.nfs3.request.SETATTR3Request;
+import org.apache.hadoop.nfs.nfs3.request.SYMLINK3Request;
+import org.apache.hadoop.nfs.nfs3.request.SetAttr3;
+import org.apache.hadoop.nfs.nfs3.request.SetAttr3.SetAttrField;
+import org.apache.hadoop.nfs.nfs3.request.WRITE3Request;
+import org.apache.hadoop.nfs.nfs3.response.ACCESS3Response;
+import org.apache.hadoop.nfs.nfs3.response.COMMIT3Response;
+import org.apache.hadoop.nfs.nfs3.response.CREATE3Response;
+import org.apache.hadoop.nfs.nfs3.response.FSINFO3Response;
+import org.apache.hadoop.nfs.nfs3.response.FSSTAT3Response;
+import org.apache.hadoop.nfs.nfs3.response.GETATTR3Response;
+import org.apache.hadoop.nfs.nfs3.response.LOOKUP3Response;
+import org.apache.hadoop.nfs.nfs3.response.MKDIR3Response;
+import org.apache.hadoop.nfs.nfs3.response.PATHCONF3Response;
+import org.apache.hadoop.nfs.nfs3.response.READ3Response;
+import org.apache.hadoop.nfs.nfs3.response.READDIR3Response;
+import org.apache.hadoop.nfs.nfs3.response.READDIRPLUS3Response;
+import org.apache.hadoop.nfs.nfs3.response.READLINK3Response;
+import org.apache.hadoop.nfs.nfs3.response.REMOVE3Response;
+import org.apache.hadoop.nfs.nfs3.response.RENAME3Response;
+import org.apache.hadoop.nfs.nfs3.response.RMDIR3Response;
+import org.apache.hadoop.nfs.nfs3.response.SETATTR3Response;
+import org.apache.hadoop.nfs.nfs3.response.SYMLINK3Response;
+import org.apache.hadoop.nfs.nfs3.response.WRITE3Response;
+import org.apache.hadoop.oncrpc.XDR;
+import org.apache.hadoop.oncrpc.security.SecurityHandler;
+import org.apache.hadoop.security.authorize.DefaultImpersonationProvider;
+import org.apache.hadoop.security.authorize.ProxyUsers;
 import org.jboss.netty.channel.Channel;
 import org.junit.AfterClass;
 import org.junit.Assert;
@@ -31,46 +90,6 @@ import org.junit.BeforeClass;
 import org.junit.Test;
 import org.mockito.Mockito;
 
-import org.apache.hadoop.fs.CommonConfigurationKeys;
-import org.apache.hadoop.fs.Path;
-import org.apache.hadoop.hdfs.DFSTestUtil;
-import org.apache.hadoop.hdfs.DistributedFileSystem;
-import org.apache.hadoop.hdfs.MiniDFSCluster;
-import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
-import org.apache.hadoop.hdfs.nfs.conf.NfsConfigKeys;
-import org.apache.hadoop.hdfs.protocol.HdfsFileStatus;
-import org.apache.hadoop.hdfs.server.namenode.NameNode;
-import org.apache.hadoop.nfs.nfs3.FileHandle;
-import org.apache.hadoop.nfs.nfs3.Nfs3Constant;
-import org.apache.hadoop.nfs.nfs3.Nfs3Constant.WriteStableHow;
-import org.apache.hadoop.nfs.nfs3.Nfs3Status;
-import org.apache.hadoop.nfs.nfs3.request.LOOKUP3Request;
-import org.apache.hadoop.nfs.nfs3.request.READ3Request;
-import org.apache.hadoop.nfs.nfs3.request.WRITE3Request;
-import org.apache.hadoop.nfs.nfs3.response.ACCESS3Response;
-import org.apache.hadoop.nfs.nfs3.response.COMMIT3Response;
-import org.apache.hadoop.nfs.nfs3.response.CREATE3Response;
-import org.apache.hadoop.nfs.nfs3.response.FSSTAT3Response;
-import org.apache.hadoop.nfs.nfs3.response.FSINFO3Response;
-import org.apache.hadoop.nfs.nfs3.response.GETATTR3Response;
-import org.apache.hadoop.nfs.nfs3.response.LOOKUP3Response;
-import org.apache.hadoop.nfs.nfs3.response.PATHCONF3Response;
-import org.apache.hadoop.nfs.nfs3.response.READ3Response;
-import org.apache.hadoop.nfs.nfs3.response.REMOVE3Response;
-import org.apache.hadoop.nfs.nfs3.response.RMDIR3Response;
-import org.apache.hadoop.nfs.nfs3.response.RENAME3Response;
-import org.apache.hadoop.nfs.nfs3.response.READDIR3Response;
-import org.apache.hadoop.nfs.nfs3.response.READDIRPLUS3Response;
-import org.apache.hadoop.nfs.nfs3.response.READLINK3Response;
-import org.apache.hadoop.nfs.nfs3.response.SETATTR3Response;
-import org.apache.hadoop.nfs.nfs3.response.SYMLINK3Response;
-import org.apache.hadoop.nfs.nfs3.response.WRITE3Response;
-import org.apache.hadoop.nfs.nfs3.request.SetAttr3;
-import org.apache.hadoop.oncrpc.XDR;
-import org.apache.hadoop.oncrpc.security.SecurityHandler;
-import org.apache.hadoop.security.authorize.DefaultImpersonationProvider;
-import org.apache.hadoop.security.authorize.ProxyUsers;
-
 
 /**
  * Tests for {@link RpcProgramNfs3}
@@ -143,7 +162,8 @@ public class TestRpcProgramNfs3 {
     long dirId = status.getFileId();
     FileHandle handle = new FileHandle(dirId);
     XDR xdr_req = new XDR();
-    handle.serialize(xdr_req);
+    GETATTR3Request req = new GETATTR3Request(handle);
+    req.serialize(xdr_req);
     
     // Attempt by an unpriviledged user should fail.
     GETATTR3Response response1 = nfsd.getattr(xdr_req.asReadOnlyWrap(),
@@ -165,13 +185,12 @@ public class TestRpcProgramNfs3 {
     long dirId = status.getFileId();
     XDR xdr_req = new XDR();
     FileHandle handle = new FileHandle(dirId);
-    handle.serialize(xdr_req);
+    SetAttr3 symAttr = new SetAttr3(0, 1, 0, 0, null, null,
-    xdr_req.writeString("bar");
+        EnumSet.of(SetAttrField.UID));
-    SetAttr3 symAttr = new SetAttr3();
+    SETATTR3Request req = new SETATTR3Request(handle, symAttr, false, null);
-    symAttr.serialize(xdr_req);
+    req.serialize(xdr_req);
-    xdr_req.writeBoolean(false);
 
-    // Attempt by an unpriviledged user should fail.
+    // Attempt by an unprivileged user should fail.
     SETATTR3Response response1 = nfsd.setattr(xdr_req.asReadOnlyWrap(),
         securityHandlerUnpriviledged,
         new InetSocketAddress("localhost", 1234));
@@ -214,7 +233,8 @@ public class TestRpcProgramNfs3 {
     long dirId = status.getFileId();
     FileHandle handle = new FileHandle(dirId);
     XDR xdr_req = new XDR();
-    handle.serialize(xdr_req);
+    ACCESS3Request req = new ACCESS3Request(handle);
+    req.serialize(xdr_req);
 
     // Attempt by an unpriviledged user should fail.
     ACCESS3Response response1 = nfsd.access(xdr_req.asReadOnlyWrap(),
@@ -237,11 +257,9 @@ public class TestRpcProgramNfs3 {
     long dirId = status.getFileId();
     XDR xdr_req = new XDR();
     FileHandle handle = new FileHandle(dirId);
-    handle.serialize(xdr_req);
+    SYMLINK3Request req = new SYMLINK3Request(handle, "fubar", new SetAttr3(),
-    xdr_req.writeString("fubar");
+        "bar");
-    SetAttr3 symAttr = new SetAttr3();
+    req.serialize(xdr_req);
-    symAttr.serialize(xdr_req);
-    xdr_req.writeString("bar");
     
     SYMLINK3Response response = nfsd.symlink(xdr_req.asReadOnlyWrap(),
         securityHandler, new InetSocketAddress("localhost", 1234));
@@ -251,7 +269,8 @@ public class TestRpcProgramNfs3 {
     // Now perform readlink operations.
     FileHandle handle2 = response.getObjFileHandle();
     XDR xdr_req2 = new XDR();
-    handle2.serialize(xdr_req2);
+    READLINK3Request req2 = new READLINK3Request(handle2);
+    req2.serialize(xdr_req2);
 
     // Attempt by an unpriviledged user should fail.
     READLINK3Response response1 = nfsd.readlink(xdr_req2.asReadOnlyWrap(),
@@ -327,11 +346,9 @@ public class TestRpcProgramNfs3 {
     long dirId = status.getFileId();
     XDR xdr_req = new XDR();
     FileHandle handle = new FileHandle(dirId);
-    handle.serialize(xdr_req);
+    CREATE3Request req = new CREATE3Request(handle, "fubar",
-    xdr_req.writeString("fubar");
+        Nfs3Constant.CREATE_UNCHECKED, new SetAttr3(), 0);
-    xdr_req.writeInt(Nfs3Constant.CREATE_UNCHECKED);
+    req.serialize(xdr_req);
-    SetAttr3 symAttr = new SetAttr3();
-    symAttr.serialize(xdr_req);
     
     // Attempt by an unpriviledged user should fail.
     CREATE3Response response1 = nfsd.create(xdr_req.asReadOnlyWrap(),
@@ -348,26 +365,27 @@ public class TestRpcProgramNfs3 {
   }
 
   @Test(timeout = 60000)
-  public void testMkdir() throws Exception {
+  public void testMkdir() throws Exception {//FixME
     HdfsFileStatus status = nn.getRpcServer().getFileInfo(testdir);
     long dirId = status.getFileId();
     XDR xdr_req = new XDR();
     FileHandle handle = new FileHandle(dirId);
-    handle.serialize(xdr_req);
+    MKDIR3Request req = new MKDIR3Request(handle, "fubar1", new SetAttr3());
-    xdr_req.writeString("fubar");
+    req.serialize(xdr_req);
-    SetAttr3 symAttr = new SetAttr3();
-    symAttr.serialize(xdr_req);
-    xdr_req.writeString("bar");
     
-    // Attempt to remove by an unpriviledged user should fail.
+    // Attempt to mkdir by an unprivileged user should fail.
-    SYMLINK3Response response1 = nfsd.symlink(xdr_req.asReadOnlyWrap(),
+    MKDIR3Response response1 = nfsd.mkdir(xdr_req.asReadOnlyWrap(),
         securityHandlerUnpriviledged,
         new InetSocketAddress("localhost", 1234));
     assertEquals("Incorrect return code:", Nfs3Status.NFS3ERR_ACCES,
         response1.getStatus());
 
-    // Attempt to remove by a priviledged user should pass.
+    XDR xdr_req2 = new XDR();
-    SYMLINK3Response response2 = nfsd.symlink(xdr_req.asReadOnlyWrap(),
+    MKDIR3Request req2 = new MKDIR3Request(handle, "fubar2", new SetAttr3());
+    req2.serialize(xdr_req2);
+    
+    // Attempt to mkdir by a privileged user should pass.
+    MKDIR3Response response2 = nfsd.mkdir(xdr_req2.asReadOnlyWrap(),
         securityHandler, new InetSocketAddress("localhost", 1234));
     assertEquals("Incorrect return code:", Nfs3Status.NFS3_OK,
         response2.getStatus());
@@ -379,20 +397,18 @@ public class TestRpcProgramNfs3 {
     long dirId = status.getFileId();
     XDR xdr_req = new XDR();
     FileHandle handle = new FileHandle(dirId);
-    handle.serialize(xdr_req);
+    SYMLINK3Request req = new SYMLINK3Request(handle, "fubar", new SetAttr3(),
-    xdr_req.writeString("fubar");
+        "bar");
-    SetAttr3 symAttr = new SetAttr3();
+    req.serialize(xdr_req);
-    symAttr.serialize(xdr_req);
-    xdr_req.writeString("bar");
 
-    // Attempt by an unpriviledged user should fail.
+    // Attempt by an unprivileged user should fail.
     SYMLINK3Response response1 = nfsd.symlink(xdr_req.asReadOnlyWrap(),
         securityHandlerUnpriviledged,
         new InetSocketAddress("localhost", 1234));
     assertEquals("Incorrect return code:", Nfs3Status.NFS3ERR_ACCES,
         response1.getStatus());
 
-    // Attempt by a priviledged user should pass.
+    // Attempt by a privileged user should pass.
     SYMLINK3Response response2 = nfsd.symlink(xdr_req.asReadOnlyWrap(),
         securityHandler, new InetSocketAddress("localhost", 1234));
     assertEquals("Incorrect return code:", Nfs3Status.NFS3_OK,
@@ -405,8 +421,8 @@ public class TestRpcProgramNfs3 {
     long dirId = status.getFileId();
     XDR xdr_req = new XDR();
     FileHandle handle = new FileHandle(dirId);
-    handle.serialize(xdr_req);
+    REMOVE3Request req = new REMOVE3Request(handle, "bar");
-    xdr_req.writeString("bar");
+    req.serialize(xdr_req);
 
     // Attempt by an unpriviledged user should fail.
     REMOVE3Response response1 = nfsd.remove(xdr_req.asReadOnlyWrap(),
@@ -428,17 +444,17 @@ public class TestRpcProgramNfs3 {
     long dirId = status.getFileId();
     XDR xdr_req = new XDR();
     FileHandle handle = new FileHandle(dirId);
-    handle.serialize(xdr_req);
+    RMDIR3Request req = new RMDIR3Request(handle, "foo");
-    xdr_req.writeString("foo");
+    req.serialize(xdr_req);
 
-    // Attempt by an unpriviledged user should fail.
+    // Attempt by an unprivileged user should fail.
     RMDIR3Response response1 = nfsd.rmdir(xdr_req.asReadOnlyWrap(),
         securityHandlerUnpriviledged,
         new InetSocketAddress("localhost", 1234));
     assertEquals("Incorrect return code:", Nfs3Status.NFS3ERR_ACCES,
         response1.getStatus());
 
-    // Attempt by a priviledged user should pass.
+    // Attempt by a privileged user should pass.
     RMDIR3Response response2 = nfsd.rmdir(xdr_req.asReadOnlyWrap(),
         securityHandler, new InetSocketAddress("localhost", 1234));
     assertEquals("Incorrect return code:", Nfs3Status.NFS3_OK,
@@ -451,19 +467,17 @@ public class TestRpcProgramNfs3 {
     long dirId = status.getFileId();
     XDR xdr_req = new XDR();
     FileHandle handle = new FileHandle(dirId);
-    handle.serialize(xdr_req);
+    RENAME3Request req = new RENAME3Request(handle, "bar", handle, "fubar");
-    xdr_req.writeString("bar");
+    req.serialize(xdr_req);
-    handle.serialize(xdr_req);
-    xdr_req.writeString("fubar");
     
-    // Attempt by an unpriviledged user should fail.
+    // Attempt by an unprivileged user should fail.
     RENAME3Response response1 = nfsd.rename(xdr_req.asReadOnlyWrap(),
         securityHandlerUnpriviledged,
         new InetSocketAddress("localhost", 1234));
     assertEquals("Incorrect return code:", Nfs3Status.NFS3ERR_ACCES,
         response1.getStatus());
 
-    // Attempt by a priviledged user should pass.
+    // Attempt by a privileged user should pass.
     RENAME3Response response2 = nfsd.rename(xdr_req.asReadOnlyWrap(),
         securityHandler, new InetSocketAddress("localhost", 1234));
     assertEquals("Incorrect return code:", Nfs3Status.NFS3_OK,
@@ -476,10 +490,8 @@ public class TestRpcProgramNfs3 {
     long dirId = status.getFileId();
     FileHandle handle = new FileHandle(dirId);
     XDR xdr_req = new XDR();
-    handle.serialize(xdr_req);
+    READDIR3Request req = new READDIR3Request(handle, 0, 0, 100);
-    xdr_req.writeLongAsHyper(0);
+    req.serialize(xdr_req);
-    xdr_req.writeLongAsHyper(0);
-    xdr_req.writeInt(100);
 
     // Attempt by an unpriviledged user should fail.
     READDIR3Response response1 = nfsd.readdir(xdr_req.asReadOnlyWrap(),
@@ -501,20 +513,17 @@ public class TestRpcProgramNfs3 {
     long dirId = status.getFileId();
     FileHandle handle = new FileHandle(dirId);
     XDR xdr_req = new XDR();
-    handle.serialize(xdr_req);
+    READDIRPLUS3Request req = new READDIRPLUS3Request(handle, 0, 0, 3, 2);
-    xdr_req.writeLongAsHyper(0);
+    req.serialize(xdr_req);
-    xdr_req.writeLongAsHyper(0);
-    xdr_req.writeInt(3);
-    xdr_req.writeInt(2);
     
-    // Attempt by an unpriviledged user should fail.
+    // Attempt by an unprivileged user should fail.
     READDIRPLUS3Response response1 = nfsd.readdirplus(xdr_req.asReadOnlyWrap(),
         securityHandlerUnpriviledged,
         new InetSocketAddress("localhost", 1234));
     assertEquals("Incorrect return code:", Nfs3Status.NFS3ERR_ACCES,
         response1.getStatus());
 
-    // Attempt by a priviledged user should pass.
+    // Attempt by a privileged user should pass.
     READDIRPLUS3Response response2 = nfsd.readdirplus(xdr_req.asReadOnlyWrap(),
         securityHandler, new InetSocketAddress("localhost", 1234));
     assertEquals("Incorrect return code:", Nfs3Status.NFS3_OK,
@@ -527,7 +536,8 @@ public class TestRpcProgramNfs3 {
     long dirId = status.getFileId();
     FileHandle handle = new FileHandle(dirId);
     XDR xdr_req = new XDR();
-    handle.serialize(xdr_req);
+    FSSTAT3Request req = new FSSTAT3Request(handle);
+    req.serialize(xdr_req);
     
     // Attempt by an unpriviledged user should fail.
     FSSTAT3Response response1 = nfsd.fsstat(xdr_req.asReadOnlyWrap(),
@@ -549,7 +559,8 @@ public class TestRpcProgramNfs3 {
     long dirId = status.getFileId();
     FileHandle handle = new FileHandle(dirId);
     XDR xdr_req = new XDR();
-    handle.serialize(xdr_req);
+    FSINFO3Request req = new FSINFO3Request(handle);
+    req.serialize(xdr_req);
     
     // Attempt by an unpriviledged user should fail.
     FSINFO3Response response1 = nfsd.fsinfo(xdr_req.asReadOnlyWrap(),
@@ -571,7 +582,8 @@ public class TestRpcProgramNfs3 {
     long dirId = status.getFileId();
     FileHandle handle = new FileHandle(dirId);
     XDR xdr_req = new XDR();
-    handle.serialize(xdr_req);
+    PATHCONF3Request req = new PATHCONF3Request(handle);
+    req.serialize(xdr_req);
     
     // Attempt by an unpriviledged user should fail.
     PATHCONF3Response response1 = nfsd.pathconf(xdr_req.asReadOnlyWrap(),
@@ -593,9 +605,8 @@ public class TestRpcProgramNfs3 {
     long dirId = status.getFileId();
     FileHandle handle = new FileHandle(dirId);
     XDR xdr_req = new XDR();
-    handle.serialize(xdr_req);
+    COMMIT3Request req = new COMMIT3Request(handle, 0, 5);
-    xdr_req.writeLongAsHyper(0);
+    req.serialize(xdr_req);
-    xdr_req.writeInt(5);
 
     Channel ch = Mockito.mock(Channel.class);
 

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -293,6 +293,8 @@ Release 2.6.0 - UNRELEASED
     HDFS-6908. Incorrect snapshot directory diff generated by snapshot deletion.
     (Juan Yu and jing9 via jing9)
 
+    HDFS-6892. Add XDR packaging method for each NFS request (brandonli)
+
 Release 2.5.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES