/*
* Copyright 2002-2007 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.autoproxy;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.core.Conventions;
/**
* Utilities for auto-proxy aware components.
* Mainly for internal use within the framework.
*
* @author Juergen Hoeller
* @since 2.0.3
* @see AbstractAutoProxyCreator
*/
public abstract class AutoProxyUtils {
/**
* Bean definition attribute that may indicate whether a given bean is supposed
* to be proxied with its target class (in case of it getting proxied in the first
* place). The value is <code>Boolean.TRUE</code> or <code>Boolean.FALSE</code>.
* <p>Proxy factories can set this attribute if they built a target class proxy
* for a specific bean, and want to enforce that that bean can always be cast
* to its target class (even if AOP advices get applied through auto-proxying).
*/
public static final String PRESERVE_TARGET_CLASS_ATTRIBUTE =
Conventions.getQualifiedAttributeName(AutoProxyUtils.class, "preserveTargetClass");
/**
* Determine whether the given bean should be proxied with its target
* class rather than its interfaces. Checks the
* {@link #PRESERVE_TARGET_CLASS_ATTRIBUTE "preserveTargetClass" attribute}
* of the corresponding bean definition.
* @param beanFactory the containing ConfigurableListableBeanFactory
* @param beanName the name of the bean
* @return whether the given bean should be proxied with its target class
*/
public static boolean shouldProxyTargetClass(ConfigurableListableBeanFactory beanFactory, String beanName) {
if (beanFactory.containsBeanDefinition(beanName)) {
BeanDefinition bd = beanFactory.getBeanDefinition(beanName);
return Boolean.TRUE.equals(bd.getAttribute(PRESERVE_TARGET_CLASS_ATTRIBUTE));
}
return false;
}
}