| /* |
| * $Id$ |
| * |
| * Copyright 2001-2004 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. |
| */ |
| |
| |
| package org.apache.struts.scaffold; |
| |
| import org.apache.commons.scaffold.lang.Tokens; |
| import org.apache.commons.scaffold.text.ConvertUtils; |
| import org.apache.struts.action.ActionForm; |
| import org.apache.struts.action.ActionForward; |
| import org.apache.struts.action.ActionMapping; |
| import org.apache.struts.scaffold.BaseAction; |
| import org.apache.struts.scaffold.BaseForm; |
| |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| |
| /** |
| * Standard Action to forward control to another mapping |
| * given as a runtime parameter (?dispatch=), |
| * after running any model classes. |
| * |
| * @version $Rev$ $Date$ |
| */ |
| public final class MenuRelayAction extends BaseAction { |
| |
| |
| /** |
| * Looks for a runtime parameter named "dispatch", |
| * and uses its value to search for an ActionForward. |
| * If a "dispatch" parameter is not available, |
| * and the form is a BaseForm istance, then the |
| * dispatch property is checked. |
| * If dispatch is blank, the mapping parameter is |
| * checked. |
| * Finally, if all of these are blank, |
| * MenuRelayAction looks for a "menu" forward. |
| * <p> |
| * This is useful for returning to a submenu when |
| * a MenuForm is kept in the session for each user. |
| * |
| * @param mapping The ActionMapping used to select this instance |
| * @param form The optional ActionForm bean for this request (if any) |
| * @param request The HTTP request we are processing |
| * @param response The response we are creating |
| */ |
| protected ActionForward findSuccess( |
| ActionMapping mapping, |
| ActionForm form, |
| HttpServletRequest request, |
| HttpServletResponse response) { |
| |
| String forward = request.getParameter(Tokens.DISPATCH); |
| if ((ConvertUtils.blank(forward)) && (form instanceof BaseForm)) { |
| BaseForm baseForm = (BaseForm) form; |
| forward = baseForm.getDispatch(); |
| } |
| if (ConvertUtils.blank(forward)) forward = mapping.getParameter(); |
| if (ConvertUtils.blank(forward)) forward = Tokens.MENU; |
| return mapping.findForward(forward); |
| } |
| |
| } // end RelayHelperAction |