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     */
022    package org.granite.messaging.reflect;
023    
024    import java.lang.reflect.Constructor;
025    import java.lang.reflect.InvocationTargetException;
026    import java.lang.reflect.Method;
027    
028    /**
029     * @author Franck WOLFF
030     */
031    public 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    }