| /** |
| * 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.hdfs.protocol.DatanodeID; |
| import org.apache.hadoop.hdfs.security.ExportedAccessKeys; |
| import org.apache.hadoop.hdfs.server.common.Storage; |
| import org.apache.hadoop.hdfs.server.common.StorageInfo; |
| import org.apache.hadoop.hdfs.server.datanode.DataStorage; |
| import org.apache.hadoop.io.Writable; |
| import org.apache.hadoop.io.WritableFactories; |
| import org.apache.hadoop.io.WritableFactory; |
| |
| /** |
| * DatanodeRegistration class contains all information the name-node needs |
| * to identify and verify a data-node when it contacts the name-node. |
| * This information is sent by data-node with each communication request. |
| */ |
| public class DatanodeRegistration extends DatanodeID |
| implements Writable, NodeRegistration { |
| static { // register a ctor |
| WritableFactories.setFactory |
| (DatanodeRegistration.class, |
| new WritableFactory() { |
| public Writable newInstance() { return new DatanodeRegistration(); } |
| }); |
| } |
| |
| public StorageInfo storageInfo; |
| public ExportedAccessKeys exportedKeys; |
| |
| /** |
| * Default constructor. |
| */ |
| public DatanodeRegistration() { |
| this(""); |
| } |
| |
| /** |
| * Create DatanodeRegistration |
| */ |
| public DatanodeRegistration(String nodeName) { |
| super(nodeName); |
| this.storageInfo = new StorageInfo(); |
| this.exportedKeys = new ExportedAccessKeys(); |
| } |
| |
| public void setInfoPort(int infoPort) { |
| this.infoPort = infoPort; |
| } |
| |
| public void setIpcPort(int ipcPort) { |
| this.ipcPort = ipcPort; |
| } |
| |
| public void setStorageInfo(DataStorage storage) { |
| this.storageInfo = new StorageInfo(storage); |
| this.storageID = storage.getStorageID(); |
| } |
| |
| public void setName(String name) { |
| this.name = name; |
| } |
| |
| @Override // NodeRegistration |
| public int getVersion() { |
| return storageInfo.getLayoutVersion(); |
| } |
| |
| @Override // NodeRegistration |
| public String getRegistrationID() { |
| return Storage.getRegistrationID(storageInfo); |
| } |
| |
| @Override // NodeRegistration |
| public String getAddress() { |
| return getName(); |
| } |
| |
| @Override |
| public String toString() { |
| return getClass().getSimpleName() |
| + "(" + name |
| + ", storageID=" + storageID |
| + ", infoPort=" + infoPort |
| + ", ipcPort=" + ipcPort |
| + ")"; |
| } |
| |
| ///////////////////////////////////////////////// |
| // Writable |
| ///////////////////////////////////////////////// |
| /** {@inheritDoc} */ |
| public void write(DataOutput out) throws IOException { |
| super.write(out); |
| |
| //TODO: move it to DatanodeID once HADOOP-2797 has been committed |
| out.writeShort(ipcPort); |
| |
| storageInfo.write(out); |
| exportedKeys.write(out); |
| } |
| |
| /** {@inheritDoc} */ |
| public void readFields(DataInput in) throws IOException { |
| super.readFields(in); |
| |
| //TODO: move it to DatanodeID once HADOOP-2797 has been committed |
| this.ipcPort = in.readShort() & 0x0000ffff; |
| |
| storageInfo.readFields(in); |
| exportedKeys.readFields(in); |
| } |
| @Override |
| public boolean equals(Object to) { |
| return super.equals(to); |
| } |
| @Override |
| public int hashCode() { |
| return super.hashCode(); |
| } |
| } |