content: /**
   * 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 backtype.storm.security.auth;
  
  import java.security.Principal;
  
  /**
   * A Principal that represents a user.
   */
  public class SingleUserPrincipal implements Principal {
  
      private final String _userName;
  
      public SingleUserPrincipal(String userName) {
          _userName = userName;
      }
  
      @Override
      public boolean equals(Object another) {
          if (another instanceof SingleUserPrincipal) {
              return _userName.equals(((SingleUserPrincipal) another)._userName);
          }
          return false;
      }
  
      @Override
      public String getName() {
          return _userName;
      }
  
      @Override
      public String toString() {
          return this.getName();
      }
  
      @Override
      public int hashCode() {
          return _userName.hashCode();
      }
  }
  