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Infinispan Embedded Query All-in-One module
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Middleware LLC.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.annotations.common.annotationfactory;
import java.lang.annotation.Annotation;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Proxy;
/**
* Creates live annotations (actually AnnotationProxies
) from AnnotationDescriptors
.
*
* @author Paolo Perrotta
* @author Davide Marchignoli
* @see AnnotationProxy
*/
public class AnnotationFactory {
@SuppressWarnings("unchecked")
public static T create(AnnotationDescriptor descriptor) {
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
//TODO round 34ms to generate the proxy, hug! is Javassist Faster?
//TODO prebuild the javax.persistence and org.hibernate.annotations classes?
Class proxyClass = (Class) Proxy.getProxyClass( classLoader, descriptor.type() );
InvocationHandler handler = new AnnotationProxy( descriptor );
try {
return getProxyInstance( proxyClass, handler );
}
catch (RuntimeException e) {
throw e;
}
catch (Exception e) {
throw new RuntimeException( e );
}
}
private static T getProxyInstance(Class proxyClass, InvocationHandler handler) throws
SecurityException, NoSuchMethodException, IllegalArgumentException, InstantiationException,
IllegalAccessException, InvocationTargetException {
Constructor constructor = proxyClass.getConstructor( new Class[]{InvocationHandler.class} );
return constructor.newInstance( new Object[]{handler} );
}
}