struts-tiles-examples

/* * ==================================================================== * * Copyright (c) 2002 Caravel Technologies. All rights reserved. * * For information about the company, visit <http://www.caraveltech.com>. * * ==================================================================== */ package com.caraveltech.ex2; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.Action; import org.apache.struts.action.ActionError; import org.apache.struts.action.ActionErrors; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.action.ActionServlet; import org.apache.struts.action.DynaActionForm; /** * Implementation of <strong>Action</strong> that accepts input for * the user profile. * * @author Wellie W. Chao * @version $Revision: 1.1 $ $Date: 2002/05/26 16:25:26 $ */ public final class ProfileAction extends Action { /** * Process the specified HTTP request, and create the corresponding HTTP * response (or forward to another web component that will create it). * Return an <code>ActionForward</code> instance describing where and how * control should be forwarded, or <code>null</code> if the response has * already been completed. * * @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 HTTP response we are creating * * @exception Exception if business logic throws an exception */ public ActionForward execute(ActionMapping mapping, ActionForm baseForm, HttpServletRequest request, HttpServletResponse response) throws Exception { DynaActionForm form = (DynaActionForm)baseForm; String thisActionClass = "com.caraveltech.ex2.ProfileAction"; String actionClass = (String)form.get("actionClass"); HttpSession session = request.getSession(); if (!thisActionClass.equals(actionClass)) { // Do not try to act on the form if the user just pulled it up. // Set the hidden field so the next time around we will know to // act on the form data. form.set("actionClass", thisActionClass); // display the form for input. return (new ActionForward(mapping.getInput())); } // Validate the request parameters specified by the user ActionErrors errors = new ActionErrors(); if ((form.get("firstName") == null) || (((String)form.get("firstName")).length() < 1)) { ActionError error = new ActionError("error.firstName.required"); errors.add("firstName", error); } if ((form.get("lastName") == null) || (((String)form.get("lastName")).length() < 1)) { ActionError error = new ActionError("error.lastName.required"); errors.add("lastName", error); } if ((form.get("favoriteColor") == null) || (((String)form.get("favoriteColor")).length() < 1)) { ActionError error = new ActionError("error.favoriteColor.required"); errors.add("favoriteColor", error); } else if (!"blue".equals(form.get("favoriteColor"))) { ActionError error = new ActionError("error.favoriteColor.mustBeBlue"); errors.add("favoriteColor", error); } if ((form.get("birthdate") == null) || (((String)form.get("birthdate")).length() < 1)) { ActionError error = new ActionError("error.birthdate.required"); errors.add("birthdate", error); } else if (!((String)form.get("birthdate")).matches("\\d+{1,2}/\\d{1,2}/\\d{2}")) { ActionError error = new ActionError("error.birthdate.invalid"); errors.add("birthdate", error); } // Report any errors we have discovered back to the original form if (!errors.empty()) { saveErrors(request, errors); return (new ActionForward(mapping.getInput())); } // Remove the obsolete form bean if (mapping.getAttribute() != null) { if ("request".equals(mapping.getScope())) request.removeAttribute(mapping.getAttribute()); else session.removeAttribute(mapping.getAttribute()); } // Place form values in request scope for bean:write tags request.setAttribute("firstName", form.get("firstName")); request.setAttribute("lastName", form.get("lastName")); request.setAttribute("favoriteColor", form.get("favoriteColor")); request.setAttribute("birthdate", form.get("birthdate")); // Forward control to the specified success URI return (mapping.findForward("success")); } }