hadoop DatanodeAdminProperties 源码

haddop DatanodeAdminProperties 代码

文件路径：/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocol/DatanodeAdminProperties.java

/**
 * 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.hadoop.hdfs.protocol.DatanodeInfo.AdminStates;

/**
 * The class describes the configured admin properties for a datanode.
 *
 * It is the static configuration specified by administrators via dfsadmin
 * command; different from the runtime state. CombinedHostFileManager uses
 * the class to deserialize the configurations from json-based file format.
 *
 * To decommission a node, use AdminStates.DECOMMISSIONED.
 */
public class DatanodeAdminProperties {
  private String hostName;
  private int port;
  private String upgradeDomain;
  private AdminStates adminState = AdminStates.NORMAL;
  private long maintenanceExpireTimeInMS = Long.MAX_VALUE;

  /**
   * Return the host name of the datanode.
   * @return the host name of the datanode.
   */
  public String getHostName() {
    return hostName;
  }

  /**
   * Set the host name of the datanode.
   * @param hostName the host name of the datanode.
   */
  public void setHostName(final String hostName) {
    this.hostName = hostName;
  }

  /**
   * Get the port number of the datanode.
   * @return the port number of the datanode.
   */
  public int getPort() {
    return port;
  }

  /**
   * Set the port number of the datanode.
   * @param port the port number of the datanode.
   */
  public void setPort(final int port) {
    this.port = port;
  }

  /**
   * Get the upgrade domain of the datanode.
   * @return the upgrade domain of the datanode.
   */
  public String getUpgradeDomain() {
    return upgradeDomain;
  }

  /**
   * Set the upgrade domain of the datanode.
   * @param upgradeDomain the upgrade domain of the datanode.
   */
  public void setUpgradeDomain(final String upgradeDomain) {
    this.upgradeDomain = upgradeDomain;
  }

  /**
   * Get the admin state of the datanode.
   * @return the admin state of the datanode.
   */
  public AdminStates getAdminState() {
    return adminState;
  }

  /**
   * Set the admin state of the datanode.
   * @param adminState the admin state of the datanode.
   */
  public void setAdminState(final AdminStates adminState) {
    this.adminState = adminState;
  }

  /**
   * Get the maintenance expiration time in milliseconds.
   * @return the maintenance expiration time in milliseconds.
   */
  public long getMaintenanceExpireTimeInMS() {
    return this.maintenanceExpireTimeInMS;
  }

  /**
   * Get the maintenance expiration time in milliseconds.
   * @param maintenanceExpireTimeInMS
   *        the maintenance expiration time in milliseconds.
   */
  public void setMaintenanceExpireTimeInMS(
      final long maintenanceExpireTimeInMS) {
    this.maintenanceExpireTimeInMS = maintenanceExpireTimeInMS;
  }
}

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