| /** |
| * 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.yarn.server.resourcemanager.webapp.dao; |
| |
| import org.apache.hadoop.classification.InterfaceStability; |
| import org.apache.hadoop.security.UserGroupInformation; |
| import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager; |
| |
| import javax.xml.bind.annotation.XmlAccessType; |
| import javax.xml.bind.annotation.XmlAccessorType; |
| import javax.xml.bind.annotation.XmlRootElement; |
| |
| /** |
| * The YARN UI doesn't have centralized login mechanism. While accessing UI2 from kerberized shell, user who is |
| * placed the request to YARN need to be displayed in UI. Given requests from UI2 is routed via Proxy, only RM can provide |
| * the user who has placed the request. This DAO object help to provide the requested user and also RM logged in user. |
| * the response sent by RM is authenticated user instead of proxy user. |
| * It is always good to display authenticated user in browser which eliminates lot of confusion to end use. |
| */ |
| @XmlRootElement |
| @XmlAccessorType(XmlAccessType.FIELD) |
| @InterfaceStability.Unstable |
| public class ClusterUserInfo { |
| |
| // User who has started the RM |
| protected String rmLoginUser; |
| // User who has placed the request |
| protected String requestedUser; |
| |
| public ClusterUserInfo() { |
| } |
| |
| public ClusterUserInfo(ResourceManager rm, UserGroupInformation ugi) { |
| this.rmLoginUser = rm.getRMLoginUser(); |
| if (ugi != null) { |
| this.requestedUser = ugi.getShortUserName(); |
| } else { |
| this.requestedUser = "UNKNOWN_USER"; |
| } |
| } |
| |
| public String getRmLoginUser() { |
| return rmLoginUser; |
| } |
| |
| public String getRequestedUser() { |
| return requestedUser; |
| } |
| } |