/*
* Copyright 2002-2006 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 java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.springframework.aop.TargetSource;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.util.Assert;
import org.springframework.util.PatternMatchUtils;
import org.springframework.util.StringUtils;
/**
* Auto proxy creator that identifies beans to proxy via a list of names.
* Checks for direct, "xxx*", and "*xxx" matches.
*
* <p>For configuration details, see the javadoc of the parent class
* AbstractAutoProxyCreator. Typically, you will specify a list of
* interceptor names to apply to all identified beans, via the
* "interceptorNames" property.
*
* @author Juergen Hoeller
* @since 10.10.2003
* @see #setBeanNames
* @see #isMatch
* @see #setInterceptorNames
* @see AbstractAutoProxyCreator
*/
public class BeanNameAutoProxyCreator extends AbstractAutoProxyCreator {
private List beanNames;
/**
* Set the names of the beans that should automatically get wrapped with proxies.
* A name can specify a prefix to match by ending with "*", e.g. "myBean,tx*"
* will match the bean named "myBean" and all beans whose name start with "tx".
* <p><b>NOTE:</b> In case of a FactoryBean, only the objects created by the
* FactoryBean will get proxied. This default behavior applies as of Spring 2.0.
* If you intend to proxy a FactoryBean instance itself (a rare use case, but
* Spring 1.2's default behavior), specify the bean name of the FactoryBean
* including the factory-bean prefix "&": e.g. "&myFactoryBean".
* @see org.springframework.beans.factory.FactoryBean
* @see org.springframework.beans.factory.BeanFactory#FACTORY_BEAN_PREFIX
*/
public void setBeanNames(String[] beanNames) {
Assert.notEmpty(beanNames, "'beanNames' must not be empty");
this.beanNames = new ArrayList(beanNames.length);
for (int i = 0; i < beanNames.length; i++) {
this.beanNames.add(StringUtils.trimWhitespace(beanNames[i]));
}
}
/**
* Identify as bean to proxy if the bean name is in the configured list of names.
*/
protected Object[] getAdvicesAndAdvisorsForBean(Class beanClass, String beanName, TargetSource targetSource) {
if (this.beanNames != null) {
for (Iterator it = this.beanNames.iterator(); it.hasNext();) {
String mappedName = (String) it.next();
if (FactoryBean.class.isAssignableFrom(beanClass)) {
if (!mappedName.startsWith(BeanFactory.FACTORY_BEAN_PREFIX)) {
continue;
}
mappedName = mappedName.substring(BeanFactory.FACTORY_BEAN_PREFIX.length());
}
if (isMatch(beanName, mappedName)) {
return PROXY_WITHOUT_ADDITIONAL_INTERCEPTORS;
}
}
}
return DO_NOT_PROXY;
}
/**
* Return if the given bean name matches the mapped name.
* <p>The default implementation checks for "xxx*", "*xxx" and "*xxx*" matches,
* as well as direct equality. Can be overridden in subclasses.
* @param beanName the bean name to check
* @param mappedName the name in the configured list of names
* @return if the names match
* @see org.springframework.util.PatternMatchUtils#simpleMatch(String, String)
*/
protected boolean isMatch(String beanName, String mappedName) {
return PatternMatchUtils.simpleMatch(mappedName, beanName);
}
}