hadoop User 源码

haddop User 代码

文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/User.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.security;

import java.io.IOException;
import java.security.Principal;

import javax.security.auth.login.LoginContext;

import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.security.UserGroupInformation.AuthenticationMethod;

/**
 * Save the full and short name of the user as a principal. This allows us to
 * have a single type that we always look for when picking up user names.
 */
@InterfaceAudience.LimitedPrivate({"HDFS", "MapReduce"})
@InterfaceStability.Evolving
class User implements Principal {
  private final String fullName;
  private final String shortName;
  private volatile AuthenticationMethod authMethod = null;
  private volatile LoginContext login = null;
  private volatile long lastLogin = 0;

  public User(String name) {
    this(name, null, null);
  }
  
  public User(String name, AuthenticationMethod authMethod, LoginContext login) {
    try {
      shortName = new HadoopKerberosName(name).getShortName();
    } catch (IOException ioe) {
      throw new IllegalArgumentException("Illegal principal name " + name
                                         +": " + ioe.toString(), ioe);
    }
    fullName = name;

    this.authMethod = authMethod;
    this.login = login;
  }

  /**
   * Get the full name of the user.
   */
  @Override
  public String getName() {
    return fullName;
  }
  
  /**
   * Get the user name up to the first '/' or '@'
   * @return the leading part of the user name
   */
  public String getShortName() {
    return shortName;
  }
  
  @Override
  public boolean equals(Object o) {
    if (this == o) {
      return true;
    } else if (o == null || getClass() != o.getClass()) {
      return false;
    } else {
      return ((fullName.equals(((User) o).fullName)) && (authMethod == ((User) o).authMethod));
    }
  }
  
  @Override
  public int hashCode() {
    return fullName.hashCode();
  }
  
  @Override
  public String toString() {
    return fullName;
  }

  public void setAuthenticationMethod(AuthenticationMethod authMethod) {
    this.authMethod = authMethod;
  }

  public AuthenticationMethod getAuthenticationMethod() {
    return authMethod;
  }
  
  /**
   * Returns login object
   * @return login
   */
  public LoginContext getLogin() {
    return login;
  }
  
  /**
   * Set the login object
   * @param login
   */
  public void setLogin(LoginContext login) {
    this.login = login;
  }
  
  /**
   * Set the last login time.
   * @param time the number of milliseconds since the beginning of time
   */
  public void setLastLogin(long time) {
    lastLogin = time;
  }
  
  /**
   * Get the time of the last login.
   * @return the number of milliseconds since the beginning of time.
   */
  public long getLastLogin() {
    return lastLogin;
  }
}

相关信息

hadoop 源码目录

相关文章

hadoop AccessControlException 源码

hadoop AnnotatedSecurityInfo 源码

hadoop AuthenticationFilterInitializer 源码

hadoop CompositeGroupsMapping 源码

hadoop Credentials 源码

hadoop FastSaslClientFactory 源码

hadoop FastSaslServerFactory 源码

hadoop GroupMappingServiceProvider 源码

hadoop Groups 源码

hadoop HadoopKerberosName 源码