/*
* Copyright 2002-2013 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.aop.framework;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.cglib.proxy.Callback;
import org.springframework.cglib.proxy.Enhancer;
import org.springframework.cglib.proxy.Factory;
import org.springframework.objenesis.ObjenesisException;
import org.springframework.objenesis.ObjenesisStd;
/**
* Objenesis based extension of {@link CglibAopProxy} to create proxy instances without
* invoking the constructor of the class.
*
* @author Oliver Gierke
* @since 4.0
*/
@SuppressWarnings("serial")
class ObjenesisCglibAopProxy extends CglibAopProxy {
private static final Log logger = LogFactory.getLog(ObjenesisCglibAopProxy.class);
private final ObjenesisStd objenesis;
/**
* Creates a new {@link ObjenesisCglibAopProxy} using the given {@link AdvisedSupport}.
* @param config must not be {@literal null}.
*/
public ObjenesisCglibAopProxy(AdvisedSupport config) {
super(config);
this.objenesis = new ObjenesisStd(true);
}
@Override
@SuppressWarnings("unchecked")
protected Object createProxyClassAndInstance(Enhancer enhancer, Callback[] callbacks) {
try {
Factory factory = (Factory) this.objenesis.newInstance(enhancer.createClass());
factory.setCallbacks(callbacks);
return factory;
}
catch (ObjenesisException ex) {
// Fallback to regular proxy construction on unsupported JVMs
if (logger.isDebugEnabled()) {
logger.debug("Unable to instantiate proxy using Objenesis, falling back to regular proxy construction", ex);
}
return super.createProxyClassAndInstance(enhancer, callbacks);
}
}
}