/*
* $Id: Struts1Action.java 651946 2008-04-27 13:41:38Z apetrelli $
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.struts2.s1;
import java.util.Arrays;
import java.util.Iterator;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.Globals;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.StrutsException;
import org.apache.struts2.dispatcher.DefaultActionSupport;
import org.apache.struts2.dispatcher.Dispatcher;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ObjectFactory;
import com.opensymphony.xwork2.config.Configuration;
import com.opensymphony.xwork2.config.entities.ActionConfig;
import com.opensymphony.xwork2.inject.Inject;
import com.opensymphony.xwork2.interceptor.ScopedModelDriven;
/**
* Wraps legacy Struts 1.3 Actions. Supports the following features:
* <ul>
* <li>ActionForms</li>
* <li>ActionForwards that have the same name as a result</li>
* <li>ActionMessages stored in the request, converted to Struts 2 messages</li>
* <li>Action-level validation flag</li>
* </ul>
* Still to do:
* <ul>
* <li>Custom ActionForward instances that don't have an associated result config</li>
* <li>setServlet() calls for the Action</li>
* <li>Most everything else...</li>
* </ul>
*/
public class Struts1Action extends DefaultActionSupport implements ScopedModelDriven<ActionForm> {
private ActionForm actionForm;
private String className;
private boolean validate;
private String scopeKey;
private ObjectFactory objectFactory;
private Configuration configuration;
@Inject
public void setObjectFactory(ObjectFactory fac) {
this.objectFactory = fac;
}
@Inject
public void setConfiguration(Configuration config) {
this.configuration = config;
}
public String execute() throws Exception {
ActionContext ctx = ActionContext.getContext();
ActionConfig actionConfig = ctx.getActionInvocation().getProxy().getConfig();
Action action = null;
try {
action = (Action) objectFactory.buildBean(className, null);
} catch (Exception e) {
throw new StrutsException("Unable to create the legacy Struts Action", e, actionConfig);
}
// We should call setServlet() here, but let's stub that out later
Struts1Factory strutsFactory = new Struts1Factory(Dispatcher.getInstance().getConfigurationManager().getConfiguration());
ActionMapping mapping = strutsFactory.createActionMapping(actionConfig);
HttpServletRequest request = ServletActionContext.getRequest();
HttpServletResponse response = ServletActionContext.getResponse();
ActionForward forward = action.execute(mapping, actionForm, request, response);
ActionMessages messages = (ActionMessages) request.getAttribute(Globals.MESSAGE_KEY);
if (messages != null) {
for (Iterator i = messages.get(); i.hasNext(); ) {
ActionMessage msg = (ActionMessage) i.next();
if (msg.getValues() != null && msg.getValues().length > 0) {
addActionMessage(getText(msg.getKey(), Arrays.asList(msg.getValues())));
} else {
addActionMessage(getText(msg.getKey()));
}
}
}
if (forward instanceof WrapperActionForward || actionConfig.getResults().containsKey(forward.getName())) {
return forward.getName();
} else {
throw new StrutsException("Unable to handle action forwards that don't have an associated result", actionConfig);
}
}
public void setModel(ActionForm model) {
actionForm = model;
}
public ActionForm getModel() {
return actionForm;
}
/**
* @return the validate
*/
public boolean isValidate() {
return validate;
}
/**
* @param validate the validate to set
*/
public void setValidate(boolean validate) {
this.validate = validate;
}
/**
* @param className the className to set
*/
public void setClassName(String className) {
this.className = className;
}
public String getScopeKey() {
return scopeKey;
}
public void setScopeKey(String key) {
this.scopeKey = key;
}
}