001 /** 002 * Copyright (c) 2000-present Liferay, Inc. All rights reserved. 003 * 004 * This library is free software; you can redistribute it and/or modify it under 005 * the terms of the GNU Lesser General Public License as published by the Free 006 * Software Foundation; either version 2.1 of the License, or (at your option) 007 * any later version. 008 * 009 * This library is distributed in the hope that it will be useful, but WITHOUT 010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 011 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more 012 * details. 013 */ 014 015 package com.liferay.portal.kernel.util; 016 017 import java.util.HashMap; 018 import java.util.Map; 019 020 /** 021 * @author Shuyang Zhou 022 */ 023 public class PreloadClassLoader extends ClassLoader { 024 025 public PreloadClassLoader( 026 ClassLoader classLoader, Map<String, Class<?>> classes) { 027 028 super(classLoader); 029 030 _classes.putAll(classes); 031 } 032 033 @Override 034 public Class<?> loadClass(String name) throws ClassNotFoundException { 035 Class<?> clazz = _classes.get(name); 036 037 if (clazz != null) { 038 return clazz; 039 } 040 041 return super.loadClass(name); 042 } 043 044 private final Map<String, Class<?>> _classes = new HashMap<>(); 045 046 }