org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration.java Source code

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Here is the source code for org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration.java

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/**
 * 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 org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.hdfs.protocol.DatanodeID;
import org.apache.hadoop.hdfs.security.token.block.ExportedBlockKeys;
import org.apache.hadoop.hdfs.server.common.Storage;
import org.apache.hadoop.hdfs.server.common.StorageInfo;

import com.google.common.annotations.VisibleForTesting;

/** 
 * 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.
 */
@InterfaceAudience.Private
@InterfaceStability.Evolving
public class DatanodeRegistration extends DatanodeID implements NodeRegistration {

    private final StorageInfo storageInfo;
    private ExportedBlockKeys exportedKeys;
    private final String softwareVersion;
    private NamespaceInfo nsInfo;

    @VisibleForTesting
    public DatanodeRegistration(String uuid, DatanodeRegistration dnr) {
        this(new DatanodeID(uuid, dnr), dnr.getStorageInfo(), dnr.getExportedKeys(), dnr.getSoftwareVersion());
    }

    public DatanodeRegistration(DatanodeID dn, StorageInfo info, ExportedBlockKeys keys, String softwareVersion) {
        super(dn);
        this.storageInfo = info;
        this.exportedKeys = keys;
        this.softwareVersion = softwareVersion;
    }

    public StorageInfo getStorageInfo() {
        return storageInfo;
    }

    public void setExportedKeys(ExportedBlockKeys keys) {
        this.exportedKeys = keys;
    }

    public ExportedBlockKeys getExportedKeys() {
        return exportedKeys;
    }

    public String getSoftwareVersion() {
        return softwareVersion;
    }

    @Override // NodeRegistration
    public int getVersion() {
        return storageInfo.getLayoutVersion();
    }

    public void setNamespaceInfo(NamespaceInfo nsInfo) {
        this.nsInfo = nsInfo;
    }

    public NamespaceInfo getNamespaceInfo() {
        return nsInfo;
    }

    @Override // NodeRegistration
    public String getRegistrationID() {
        return Storage.getRegistrationID(storageInfo);
    }

    @Override // NodeRegistration
    public String getAddress() {
        return getXferAddr();
    }

    @Override
    public String toString() {
        return getClass().getSimpleName() + "(" + super.toString() + ", datanodeUuid=" + getDatanodeUuid()
                + ", infoPort=" + getInfoPort() + ", infoSecurePort=" + getInfoSecurePort() + ", ipcPort="
                + getIpcPort() + ", storageInfo=" + storageInfo + ")";
    }

    @Override
    public boolean equals(Object to) {
        return super.equals(to);
    }

    @Override
    public int hashCode() {
        return super.hashCode();
    }
}