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 org.apache.ambari.server.view;
  
  import org.apache.ambari.view.ImpersonatorSetting;
  import org.apache.ambari.view.ViewContext;
  
  /**
   * Class that provides default values for impersonating, such as the username and doAs parameter name.
   */
  public class ImpersonatorSettingImpl implements ImpersonatorSetting {
    private String doAsParamName;
    private String username;
  
    public static final String DEFAULT_DO_AS_PARAM = "doAs";
  
    /**
     * This constructor will use DEFAULT_DO_AS_PARAM and currently logged on user.
     * @param context View context object that will provide the currently logged on user.
     */
    public ImpersonatorSettingImpl(ViewContext context) {
      // Default values
      this.username = context.getUsername();
      this.doAsParamName = DEFAULT_DO_AS_PARAM;
    }
  
    /**
     * @param context View context object that will provide the currently logged on user.
     * @param doAsParamName The parameter name used for "doAs" impersonation.
     */
    public ImpersonatorSettingImpl(ViewContext context, String doAsParamName) {
      this.username = context.getUsername();
      this.doAsParamName = doAsParamName;
    }
  
    /**
     * @param username Username value that will be used for "doAs" impersonation.
     * @param doAsParamName The parameter name used for "doAs" impersonation.
     */
    public ImpersonatorSettingImpl(String username, String doAsParamName) {
      this.username = username;
      this.doAsParamName = doAsParamName;
    }
  
    /**
     * @return The parameter name used for "doAs" impersonation.
     */
    @Override
    public String getDoAsParamName() { return this.doAsParamName; }
  
    /**
     * @return The username value that will be used for "doAs" impersonation.
     */
    @Override
    public String getUsername() { return this.username; }
  }
  