org.springframework.web.struts.ActionServletAwareProcessor Maven / Gradle / Ivy
/*
* Copyright 2002-2005 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.web.struts;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionServlet;
import org.springframework.beans.factory.config.DestructionAwareBeanPostProcessor;
/**
* BeanPostProcessor implementation that passes the ActionServlet to beans
* that extend the Struts Action class. Invokes Action.setServlet
* with null on bean destruction, providing the same lifecycle
* handling as Struts' ActionServlet.
*
* ContextLoaderPlugIn automatically registers this processor
* with the underlying bean factory of its WebApplicationContext.
* Applications do not need to use this class directly.
*
* @author Juergen Hoeller
* @since 1.0.1
* @see ContextLoaderPlugIn
* @see org.apache.struts.action.Action#setServlet
*/
public class ActionServletAwareProcessor implements DestructionAwareBeanPostProcessor {
private final ActionServlet actionServlet;
/**
* Create a new ActionServletAwareProcessor for the given servlet.
*/
public ActionServletAwareProcessor(ActionServlet actionServlet) {
this.actionServlet = actionServlet;
}
public Object postProcessBeforeInitialization(Object bean, String beanName) {
if (bean instanceof Action) {
((Action) bean).setServlet(this.actionServlet);
}
return bean;
}
public Object postProcessAfterInitialization(Object bean, String beanName) {
return bean;
}
public void postProcessBeforeDestruction(Object bean, String beanName) {
if (bean instanceof Action) {
((Action) bean).setServlet(null);
}
}
}