001/**
002 *   GRANITE DATA SERVICES
003 *   Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004 *
005 *   This file is part of the Granite Data Services Platform.
006 *
007 *   Granite Data Services is free software; you can redistribute it and/or
008 *   modify it under the terms of the GNU Lesser General Public
009 *   License as published by the Free Software Foundation; either
010 *   version 2.1 of the License, or (at your option) any later version.
011 *
012 *   Granite Data Services is distributed in the hope that it will be useful,
013 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
014 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015 *   General Public License for more details.
016 *
017 *   You should have received a copy of the GNU Lesser General Public
018 *   License along with this library; if not, write to the Free Software
019 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020 *   USA, or see <http://www.gnu.org/licenses/>.
021 */
022package org.granite.messaging.reflect;
023
024import java.lang.reflect.Constructor;
025import java.lang.reflect.InvocationTargetException;
026import java.lang.reflect.Method;
027
028/**
029 * @author Franck WOLFF
030 */
031public class SunBypassConstructorAllocator implements BypassConstructorAllocator {
032        
033        private final Object reflectionFactory;
034        private final Method newConstructorForSerialization;
035        private final Constructor<?> objectConstructor;
036        
037        public SunBypassConstructorAllocator()
038                throws ClassNotFoundException, NoSuchMethodException, SecurityException,
039                IllegalAccessException, IllegalArgumentException, InvocationTargetException {
040                
041                Class<?> reflectionFactoryClass = Thread.currentThread().getContextClassLoader().loadClass("sun.reflect.ReflectionFactory");
042                reflectionFactory = reflectionFactoryClass.getDeclaredMethod("getReflectionFactory").invoke(null);
043                newConstructorForSerialization = reflectionFactoryClass.getDeclaredMethod("newConstructorForSerialization", Class.class, Constructor.class);
044                objectConstructor = Object.class.getDeclaredConstructor();
045        }
046    
047    @SuppressWarnings("unchecked")
048        public <T> T newInstance(Class<T> cls)
049                throws InstantiationException, IllegalAccessException, IllegalArgumentException,
050                InvocationTargetException, SecurityException, NoSuchMethodException {
051
052        Constructor<?> constructor = (Constructor<?>)newConstructorForSerialization.invoke(reflectionFactory, cls, objectConstructor);
053        constructor.setAccessible(true);
054        
055        return (T)constructor.newInstance();
056    }
057}