/******************************************************************************
* Copyright (c) 2006, 2010 VMware Inc.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Apache License v2.0 which accompanies this distribution.
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html and the Apache License v2.0
* is available at http://www.opensource.org/licenses/apache2.0.php.
* You may elect to redistribute this code under either of these licenses.
*
* Contributors:
* VMware Inc.
*****************************************************************************/
package org.eclipse.gemini.blueprint.service.util.internal.aop;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.List;
import org.aopalliance.aop.Advice;
import org.eclipse.gemini.blueprint.util.DebugUtils;
import org.eclipse.gemini.blueprint.util.internal.ClassUtils;
import org.osgi.framework.BundleContext;
import org.springframework.aop.framework.ProxyFactory;
/**
* Simple utility for creating Spring AOP proxies.
*
* @author Costin Leau
*
*/
public abstract class ProxyUtils {
public static Object createProxy(Class<?>[] classes, Object target, ClassLoader classLoader,
BundleContext bundleContext, List advices) {
return createProxy(classes, target, classLoader, bundleContext, (advices != null ? (Advice[]) advices
.toArray(new Advice[advices.size()]) : new Advice[0]));
}
public static Object createProxy(Class<?>[] classes, Object target, final ClassLoader classLoader,
BundleContext bundleContext, Advice[] advices) {
final ProxyFactory factory = new ProxyFactory();
ClassUtils.configureFactoryForClass(factory, classes);
for (int i = 0; i < advices.length; i++) {
factory.addAdvice(advices[i]);
}
if (target != null)
factory.setTarget(target);
// no need to add optimize since it means implicit usage of CGLib always
// which is determined automatically anyway
// factory.setOptimize(true);
factory.setFrozen(true);
factory.setOpaque(true);
boolean isSecurityOn = (System.getSecurityManager() != null);
try {
if (isSecurityOn) {
return AccessController.doPrivileged(new PrivilegedAction<Object>() {
public Object run() {
return factory.getProxy(classLoader);
}
});
} else {
return factory.getProxy(classLoader);
}
} catch (NoClassDefFoundError ncdfe) {
DebugUtils.debugClassLoadingThrowable(ncdfe, bundleContext.getBundle(), classes);
throw ncdfe;
}
}
}