TestProxyUgiManager.java
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- /**
- * 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;
- }
- }