001    /**
002     * Copyright (c) 2000-2013 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 Map<String, Class<?>> _classes = new HashMap<String, Class<?>>();
045    
046    }