| /* |
| * Copyright (c) 2016, 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 selectionresolution; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| |
| |
| public class ByteCodeClassLoader extends ClassLoader { |
| ArrayList<ClassConstruct> classes = new ArrayList<>(); |
| HashMap<String, Class> loadedClasses = new HashMap<>(); |
| |
| public void addClasses(ClassConstruct... classes) { |
| this.classes.addAll(Arrays.asList(classes)); |
| } |
| |
| public void loadAll() throws ClassNotFoundException { |
| for (ClassConstruct clazz : classes) { |
| findClass(clazz.getDottedName()); |
| } |
| } |
| |
| |
| @Override |
| public Class findClass(String name) throws ClassNotFoundException { |
| |
| Class cls = loadedClasses.get(name); |
| |
| if (cls != null) { |
| return cls; |
| } |
| |
| for (ClassConstruct clazz : classes) { |
| if (clazz.getDottedName().equals(name)) { |
| return load(clazz); |
| } |
| } |
| |
| throw new ClassNotFoundException(name); |
| } |
| |
| @Override |
| public Class loadClass(String name) throws ClassNotFoundException { |
| try { |
| return findClass(name); |
| } catch (ClassNotFoundException e) { |
| return super.loadClass(name); |
| } |
| } |
| |
| private Class load(ClassConstruct clazz) { |
| byte[] bytecode = clazz.generateBytes(); |
| Class loadedClass = defineClass(clazz.getDottedName(), bytecode, 0, bytecode.length); |
| loadedClasses.put(clazz.getDottedName(), loadedClass); |
| return loadedClass; |
| } |
| } |