Added missing files for HDFS-2489 commit.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1188286 13f79535-47bb-0310-9956-ffa450edef68

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/protocol/FinalizeCommand.java

@@ -0,0 +1,68 @@
+/**
+ * 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.server.protocol;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+
+import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.classification.InterfaceStability;
+import org.apache.hadoop.io.Writable;
+import org.apache.hadoop.io.WritableFactories;
+import org.apache.hadoop.io.WritableFactory;
+import org.apache.hadoop.io.WritableUtils;
+
+/**
+ * A BlockCommand is an instruction to a datanode to register with the namenode.
+ */
+@InterfaceAudience.Private
+@InterfaceStability.Evolving
+public class FinalizeCommand extends DatanodeCommand {
+  // /////////////////////////////////////////
+  // Writable
+  // /////////////////////////////////////////
+  static { // register a ctor
+    WritableFactories.setFactory(FinalizeCommand.class, new WritableFactory() {
+      public Writable newInstance() {
+        return new FinalizeCommand();
+      }
+    });
+  }
+  
+  String blockPoolId;
+  private FinalizeCommand() {
+    super(DatanodeProtocol.DNA_FINALIZE);
+  }
+  
+  public FinalizeCommand(String bpid) {
+    super(DatanodeProtocol.DNA_FINALIZE);
+    blockPoolId = bpid;
+  }
+  
+  public String getBlockPoolId() {
+    return blockPoolId;
+  }
+  
+  public void readFields(DataInput in) throws IOException {
+    blockPoolId = WritableUtils.readString(in);
+  }
+  public void write(DataOutput out) throws IOException {
+    WritableUtils.writeString(out, blockPoolId);
+  }
+}

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/protocol/RegisterCommand.java

@@ -0,0 +1,57 @@
+/**
+ * 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.server.protocol;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+
+import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.classification.InterfaceStability;
+import org.apache.hadoop.io.Writable;
+import org.apache.hadoop.io.WritableFactories;
+import org.apache.hadoop.io.WritableFactory;
+
+/**
+ * A BlockCommand is an instruction to a datanode to register with the namenode.
+ */
+@InterfaceAudience.Private
+@InterfaceStability.Evolving
+public class RegisterCommand extends DatanodeCommand {
+  // /////////////////////////////////////////
+  // Writable
+  // /////////////////////////////////////////
+  static { // register a ctor
+    WritableFactories.setFactory(RegisterCommand.class, new WritableFactory() {
+      public Writable newInstance() {
+        return new RegisterCommand();
+      }
+    });
+  }
+  
+  public static final DatanodeCommand REGISTER = new RegisterCommand();
+
+  public RegisterCommand() {
+    super(DatanodeProtocol.DNA_REGISTER);
+  }
+
+  @Override
+  public void readFields(DataInput in) { }
+ 
+  @Override
+  public void write(DataOutput out) { }
+}