| /* |
| * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package metaspace.stressHierarchy.common.classloader.tree; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import metaspace.stressHierarchy.common.classloader.StressClassloader; |
| |
| /** |
| * Node of tree |
| * |
| */ |
| public class Node { |
| |
| private int level; |
| |
| private Set<String> loadedClassesNames; |
| |
| private int number; |
| |
| private Set<Object> objects = new HashSet<Object>(); |
| |
| private Node parent = null; |
| |
| private StressClassloader classloader; |
| |
| public Node(int level, int number) { |
| this.level = level; |
| this.number = number; |
| } |
| |
| public void cleanup() { |
| loadedClassesNames = getClassLoader().getLoadedClassNames(); |
| objects.clear(); |
| getClassLoader().getLoadedClasses().clear(); |
| classloader = null; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj instanceof Node) { |
| Node other = (Node) obj; |
| return other.getLevel() == level && other.getNumber() == number; |
| } else { |
| return false; |
| } |
| } |
| |
| StressClassloader getClassLoader() { //package access level |
| return classloader; |
| } |
| |
| public int getLevel() { |
| return level; |
| } |
| |
| public Set<Class<?>> getLoadedClasses() { |
| return getClassLoader() == null ? null : getClassLoader().getLoadedClasses(); |
| } |
| |
| public Set<String> getLoadedClassesNames() { |
| if (loadedClassesNames != null) { |
| return loadedClassesNames; |
| } else if (getClassLoader() != null) { |
| return getClassLoader().getLoadedClassNames(); |
| } |
| return null; |
| } |
| |
| public int getNumber() { |
| return number; |
| } |
| |
| public Node getParent() { |
| return parent; |
| } |
| |
| @Override |
| public int hashCode() { |
| return level + number * 999; |
| } |
| |
| public void instantiateObjects() throws InstantiationException, IllegalAccessException { |
| for (Class<?> c : getClassLoader().getLoadedClasses()) { |
| if (!c.isInterface()) { |
| objects.add(c.newInstance()); |
| } |
| } |
| } |
| |
| public boolean isRoot() { |
| return (parent == null); |
| } |
| |
| public void setClassLoader(StressClassloader classLoader) { |
| classloader = classLoader; |
| } |
| |
| public void setParent(Node parent) { |
| this.parent = parent; |
| } |
| |
| @Override |
| public String toString() { |
| return "Node@level=" + level + "_num=" + number; |
| } |
| |
| public void loadClasses() throws ClassNotFoundException { |
| String className = "package_level" + getLevel() + "_num" + getNumber() + ".Dummy"; |
| getClassLoader().loadClass(className); |
| } |
| |
| } |