| /** |
| * 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.hdfsproxy; |
| |
| import org.apache.hadoop.security.UnixUserGroupInformation; |
| |
| import junit.framework.TestCase; |
| |
| /** Unit tests for ProxyUgiManager */ |
| public class TestProxyUgiManager extends TestCase { |
| |
| private static final UnixUserGroupInformation root1Ugi = new UnixUserGroupInformation( |
| "root", new String[] { "group1" }); |
| private static final UnixUserGroupInformation root2Ugi = new UnixUserGroupInformation( |
| "root", new String[] { "group2" }); |
| private static final long ugiLifetime = 1000L; // milliseconds |
| |
| /** Test caching functionality */ |
| public void testCache() throws Exception { |
| ProxyUgiManager.saveToCache(root1Ugi); |
| UnixUserGroupInformation ugi = ProxyUgiManager.getUgiForUser(root1Ugi |
| .getUserName()); |
| assertEquals(root1Ugi, ugi); |
| ProxyUgiManager.saveToCache(root2Ugi); |
| ugi = ProxyUgiManager.getUgiForUser(root2Ugi.getUserName()); |
| assertEquals(root2Ugi, ugi); |
| } |
| |
| /** Test clearCache method */ |
| public void testClearCache() throws Exception { |
| UnixUserGroupInformation ugi = ProxyUgiManager.getUgiForUser(root1Ugi |
| .getUserName()); |
| if (root1Ugi.equals(ugi)) { |
| ProxyUgiManager.saveToCache(root2Ugi); |
| ugi = ProxyUgiManager.getUgiForUser(root2Ugi.getUserName()); |
| assertEquals(root2Ugi, ugi); |
| ProxyUgiManager.clearCache(); |
| ugi = ProxyUgiManager.getUgiForUser(root2Ugi.getUserName()); |
| assertFalse(root2Ugi.equals(ugi)); |
| } else { |
| ProxyUgiManager.saveToCache(root1Ugi); |
| ugi = ProxyUgiManager.getUgiForUser(root1Ugi.getUserName()); |
| assertEquals(root1Ugi, ugi); |
| ProxyUgiManager.clearCache(); |
| ugi = ProxyUgiManager.getUgiForUser(root1Ugi.getUserName()); |
| assertFalse(root1Ugi.equals(ugi)); |
| } |
| } |
| |
| /** Test cache timeout */ |
| public void testTimeOut() throws Exception { |
| String[] users = new String[] { "root", "nobody", "SYSTEM", |
| "Administrator", "Administrators", "Guest" }; |
| String realUser = null; |
| UnixUserGroupInformation ugi = null; |
| ProxyUgiManager.clearCache(); |
| for (String user : users) { |
| ugi = ProxyUgiManager.getUgiForUser(user); |
| if (ugi != null) { |
| realUser = user; |
| break; |
| } |
| } |
| if (realUser != null) { |
| ProxyUgiManager.setUgiLifetime(ugiLifetime); |
| ProxyUgiManager.clearCache(); |
| UnixUserGroupInformation[] fakedUgis = generateUgi(ProxyUgiManager.CLEANUP_THRESHOLD); |
| for (int i = 0; i < ProxyUgiManager.CLEANUP_THRESHOLD; i++) { |
| ProxyUgiManager.saveToCache(fakedUgis[i]); |
| } |
| assertTrue(ProxyUgiManager.getCacheSize() == ProxyUgiManager.CLEANUP_THRESHOLD); |
| Thread.sleep(ugiLifetime + 1000L); |
| UnixUserGroupInformation newugi = ProxyUgiManager.getUgiForUser(realUser); |
| assertTrue(ProxyUgiManager.getCacheSize() == ProxyUgiManager.CLEANUP_THRESHOLD + 1); |
| assertEquals(newugi, ugi); |
| Thread.sleep(ugiLifetime + 1000L); |
| newugi = ProxyUgiManager.getUgiForUser(realUser); |
| assertTrue(ProxyUgiManager.getCacheSize() == 1); |
| assertEquals(newugi, ugi); |
| } |
| } |
| |
| private static UnixUserGroupInformation[] generateUgi(int size) { |
| UnixUserGroupInformation[] ugis = new UnixUserGroupInformation[size]; |
| for (int i = 0; i < size; i++) { |
| ugis[i] = new UnixUserGroupInformation("user" + i, |
| new String[] { "group" }); |
| } |
| return ugis; |
| } |
| } |