1 /* 2 * Copyright (c) 2010, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 package nsk.sysdict.share; 25 26 import java.lang.reflect.Field; 27 import nsk.share.Failure; 28 import nsk.share.TestFailure; 29 import nsk.share.sysdict.ClassLoadersChain; 30 import nsk.share.test.Tests; 31 32 /** 33 * This is a main class for all chain tests. 34 */ 35 public class ChainTest extends SysDictTest { 36 37 public ChainTest(String[] args) { 38 parseArgs(args); 39 } 40 41 public static void main(String args[]) { 42 Tests.runTest(new ChainTest(args), args); 43 } 44 private static final int NxM_FACTOR = 450; 45 private int classesHeight; 46 private int loadersHeight; 47 String[] classNames; 48 49 @Override 50 protected void parseArgs(String args[]) { 51 super.parseArgs(args); 52 boolean isLoaderHeightDefault = true; 53 boolean isHeightDefault = true; 54 for (int i = 0; i < args.length; i++) { 55 if (args[i].equals("-classloaderHeight")) { 56 loadersHeight = Integer.parseInt(args[i + 1]); 57 if (loadersHeight > 0) { 58 isLoaderHeightDefault = false; 59 } 60 } 61 if (args[i].equals("-height")) { 62 classesHeight = Integer.parseInt(args[i + 1]); 63 if (classesHeight > 0) { 64 isHeightDefault = false; 65 } 66 } 67 } 68 69 Class info; 70 try { 71 if (useFats) { 72 info = createJarLoader().loadClass(PACKAGE_PREFIX + "FatsInfo"); 73 } else { 74 info = createJarLoader().loadClass(PACKAGE_PREFIX + "LeansInfo"); 75 } 76 System.out.println("name=" + info.getName()); 77 for (Field field : info.getDeclaredFields()) { 78 System.err.println("field = " + field.getName()); 79 } 80 if (isHeightDefault) { 81 classesHeight = info.getField("HEIGHT").getInt(null); 82 } 83 84 85 if (isLoaderHeightDefault) { 86 loadersHeight = NxM_FACTOR / classesHeight; 87 } 88 89 if (loadersHeight * classesHeight != NxM_FACTOR) { 90 throw new Failure("classes height must divide " + NxM_FACTOR); 91 } 92 93 if (loadersHeight == 0) { 94 throw new Failure("loaders height should be positive"); 95 } 96 if (classesHeight == 0) { 97 throw new Failure("classes height should be positive"); 98 } 99 classNames = new String[classesHeight]; 100 for (int i = 0; i < classesHeight; i++) { 101 classNames[i] = PACKAGE_PREFIX + info.getField("rootName").get(null) 102 + ((String[]) info.getField("nodeNames").get(null))[i]; 103 } 104 if (classNames == null || classNames.length == 0) { 105 throw new TestFailure("No classes names for loading"); 106 } 107 System.out.println("The classHeight = " + classesHeight + " the loadersHeight = " + loadersHeight); 108 } catch (Exception e) { 109 throw new TestFailure("Can't initialize test correctly", e); 110 } 111 112 } 113 114 @Override 115 String[] getClassNames() { 116 return classNames; 117 } 118 119 @Override 120 ClassLoader[] createLoaders() { 121 ClassLoader loaders[] = new ClassLoader[loadersHeight]; 122 ClassLoader jarLoader = createJarLoader(); 123 ClassLoadersChain loadersChain = 124 new ClassLoadersChain(jarLoader, loadersHeight); 125 // direct ordering: root loader first 126 for (int i = 0; i < loadersHeight; i++) { 127 loaders[i] = loadersChain.getLoader(loadersHeight - 1 - i); 128 } 129 return loaders; 130 } 131 }