/*
* Copyright 2004 The Apache Software Foundation.
*
* 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.
*
* $Header:$
*/
package org.apache.beehive.netui.pageflow.config;
import org.apache.struts.config.FormBeanConfig;
import org.apache.struts.action.ActionFormBean;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionServlet;
import org.apache.beehive.netui.pageflow.handler.ReloadableClassHandler;
import org.apache.beehive.netui.pageflow.handler.Handlers;
import org.apache.beehive.netui.util.logging.Logger;
/**
* Class to handle our extensions to the Struts <form-bean> element.
*/
public class PageFlowActionFormBean extends ActionFormBean
{
private static final Logger _log = Logger.getInstance(PageFlowActionFormBean.class);
private String _actualType; // applicable for non-ActionForm-derived form types
public String getActualType()
{
return _actualType;
}
public void setActualType(String actualType)
{
_actualType = actualType;
}
/**
* <p>
* Create and return an <code>ActionForm</code> instance appropriate
* to the information in this <code>FormBeanConfig</code>.
* </p>
* <p>
* This is different than the base implementation in that it uses our ReloadableClassHandler
* to load the form bean class.
* </p>
*
* @param servlet The action servlet
* @return ActionForm instance
* @exception IllegalAccessException if the Class or the appropriate
* constructor is not accessible
* @exception InstantiationException if this Class represents an abstract
* class, an array class, a primitive type, or void; or if instantiation
* fails for some other reason
*/
public ActionForm createActionForm(ActionServlet servlet)
throws IllegalAccessException, InstantiationException {
// Create a new form bean instance
if (getDynamic()) {
return super.createActionForm(servlet);
}
try {
ReloadableClassHandler rch = Handlers.get(servlet.getServletContext()).getReloadableClassHandler();
Object obj = rch.newInstance(getType());
assert obj instanceof ActionForm : obj.getClass().getName();
ActionForm form = (ActionForm) obj;
form.setServlet(servlet);
return form;
} catch (ClassNotFoundException e) {
_log.error("Could not find form bean class " + getType(), e);
return null;
}
}
}