Java tutorial
/* * ConcourseConnect * Copyright 2009 Concursive Corporation * http://www.concursive.com * * This file is part of ConcourseConnect, an open source social business * software and community platform. * * Concursive ConcourseConnect is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License as published * by the Free Software Foundation, version 3 of the License. * * Under the terms of the GNU Affero General Public License you must release the * complete source code for any application that uses any part of ConcourseConnect * (system header files and libraries used by the operating system are excluded). * These terms must be included in any work that has ConcourseConnect components. * If you are developing and distributing open source applications under the * GNU Affero General Public License, then you are free to use ConcourseConnect * under the GNU Affero General Public License. * * If you are deploying a web site in which users interact with any portion of * ConcourseConnect over a network, the complete source code changes must be made * available. For example, include a link to the source archive directly from * your web site. * * For OEMs, ISVs, SIs and VARs who distribute ConcourseConnect with their * products, and do not license and distribute their source code under the GNU * Affero General Public License, Concursive provides a flexible commercial * license. * * To anyone in doubt, we recommend the commercial license. Our commercial license * is competitively priced and will eliminate any confusion about how * ConcourseConnect can be used and distributed. * * ConcourseConnect is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more * details. * * You should have received a copy of the GNU Affero General Public License * along with ConcourseConnect. If not, see <http://www.gnu.org/licenses/>. * * Attribution Notice: ConcourseConnect is an Original Work of software created * by Concursive Corporation */ package com.concursive.connect.web.modules.welcome.servlets; import com.concursive.connect.Constants; import com.concursive.connect.config.ApplicationPrefs; import com.concursive.connect.config.ApplicationVersion; import com.concursive.connect.web.modules.login.dao.User; import com.concursive.connect.web.utils.ClientType; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import javax.servlet.RequestDispatcher; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; /** * The welcome page * * @author matt rajkowski * @version $Id$ * @created February 8, 2008 */ public class WelcomeServlet extends HttpServlet { private static final Log LOG = LogFactory.getLog(WelcomeServlet.class); public void init() { } public void service(HttpServletRequest request, HttpServletResponse response) throws IOException { try { request.setCharacterEncoding("UTF-8"); } catch (Exception e) { LOG.warn("Unsupported encoding"); } try { // Save the requestURI to be used downstream (it gets rewritten on forwards) String contextPath = request.getContextPath(); String uri = request.getRequestURI(); String queryString = request.getQueryString(); String requestedURL = uri.substring(contextPath.length()) + (queryString == null ? "" : "?" + queryString); if ("/index.shtml".equals(requestedURL)) { requestedURL = ""; } request.setAttribute("requestedURL", requestedURL); // Configure the user's client ClientType clientType = (ClientType) request.getSession().getAttribute(Constants.SESSION_CLIENT_TYPE); if (clientType == null) { clientType = new ClientType(); clientType.setParameters(request); request.getSession().setAttribute("clientType", clientType); } // Detect mobile if ("false".equals(request.getParameter("useMobile"))) { clientType.setMobile(false); } // Context startup initializes the prefs ApplicationPrefs applicationPrefs = (ApplicationPrefs) request.getSession().getServletContext() .getAttribute("applicationPrefs"); if (!applicationPrefs.isConfigured()) { RequestDispatcher initialSetup = request.getRequestDispatcher("/Setup.do?command=Default"); initialSetup.forward(request, response); } else if (ApplicationVersion.isOutOfDate(applicationPrefs)) { // If the site is setup, then check to see if this is an upgraded version of the app RequestDispatcher upgrade = getServletConfig().getServletContext() .getRequestDispatcher("/Upgrade.do?command=Default&style=true"); upgrade.forward(request, response); } else if ("true".equals(applicationPrefs.get("PORTAL"))) { // If the site supports a portal, go to the portal // @todo implement mobile pages then turn this back on // if (clientType.getMobile()) { // If a mobile device is detected, offer a low-bandwidth option // RequestDispatcher portal = request.getRequestDispatcher("/Login.do?command=DetectMobile"); // portal.forward(request, response); // } else { String pathToUse = request.getRequestURI().substring(request.getContextPath().length()); RequestDispatcher portal = request .getRequestDispatcher(pathToUse + applicationPrefs.get("PORTAL.INDEX")); portal.forward(request, response); // } } else { // Go to the user's home page if logged in User thisUser = (User) request.getSession().getAttribute(Constants.SESSION_USER); if (thisUser != null && thisUser.getId() > 0) { RequestDispatcher portal = request .getRequestDispatcher("/ProjectManagement.do?command=Default"); portal.forward(request, response); } else { RequestDispatcher portal = request.getRequestDispatcher("/Login.do?command=Default"); portal.forward(request, response); } } } catch (Exception ex) { String msg = "Welcome failed"; response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, msg); } } }