001    /**
002     * Copyright (c) 2000-2010 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 com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    
020    import java.lang.reflect.Constructor;
021    import java.lang.reflect.Field;
022    
023    /**
024     * @author Brian Wing Shun Chan
025     */
026    public class ReflectionUtil {
027    
028            public static Object getFieldValue(Class<?> classObj, String fieldName) {
029                    try {
030                            Field field = classObj.getDeclaredField(fieldName);
031    
032                            field.setAccessible(true);
033    
034                            return field.get(null);
035                    }
036                    catch (Exception e) {
037                            _log.error(e, e);
038    
039                            return null;
040                    }
041            }
042    
043            public static Object newInstance(String className, String p1) {
044                    try {
045                            Class<?> classObject = Class.forName(className);
046    
047                            Constructor<?> classConstructor = classObject.getConstructor(
048                                    new Class[] {String.class});
049    
050                            Object[] arguments = new Object[] {p1};
051    
052                            return classConstructor.newInstance(arguments);
053                    }
054                    catch (Exception e) {
055                            _log.error(e, e);
056    
057                            return null;
058                    }
059            }
060    
061            private static Log _log = LogFactoryUtil.getLog(ReflectionUtil.class);
062    
063    }