Java tutorial
/* * This file is part of Mockey, a tool for testing application * interactions over HTTP, with a focus on testing web services, * specifically web applications that consume XML, JSON, and HTML. * * Copyright (C) 2009-2010 Authors: * * chad.lafontaine (chad.lafontaine AT gmail DOT com) * neil.cronin (neil AT rackle DOT com) * lorin.kobashigawa (lkb AT kgawa DOT com) * rob.meyer (rob AT bigdis DOT com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * */ package com.mockey.ui; import java.io.IOException; import java.io.PrintWriter; import java.util.List; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.log4j.Logger; import org.json.JSONException; import org.json.JSONObject; import com.mockey.model.TwistInfo; import com.mockey.storage.IMockeyStorage; import com.mockey.storage.StorageRegistry; public class TwistInfoToggleServlet extends HttpServlet implements TwistInfoConfigurationAPI { /** * */ private static final long serialVersionUID = 8461665153162178045L; private static IMockeyStorage store = StorageRegistry.MockeyStorage; private static final Logger logger = Logger.getLogger(TwistInfoToggleServlet.class); /** * Handles the following activities for <code>TwistInfo</code> * */ public void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { String responseType = req.getParameter("response-type"); // If type is JSON, then respond with JSON // Otherwise, direct to JSP Long twistInfoId = null; TwistInfo twistInfo = null; String coachingMessage = null; JSONObject jsonObject = new JSONObject(); try { twistInfoId = new Long(req.getParameter(PARAMETER_KEY_TWIST_ID)); boolean enable = Boolean.parseBoolean(req.getParameter(PARAMETER_KEY_TWIST_ENABLE)); twistInfo = store.getTwistInfoById(twistInfoId); if (enable) { store.setUniversalTwistInfoId(twistInfo.getId()); if (twistInfo != null) { jsonObject.put(PARAMETER_KEY_TWIST_ID, "" + twistInfo.getId()); jsonObject.put(PARAMETER_KEY_TWIST_NAME, "" + twistInfo.getName()); coachingMessage = "Twist configuration on"; } } else if (store.getUniversalTwistInfoId() != null && store.getUniversalTwistInfoId().equals(twistInfoId)) { // Disable // The only way to DISABLE _all_ twist configurations, both ENABLE (false) and TWIST-ID value (equal // to the current universal twist-id have to be passed in. // Why? To prevent random 'ENABLE=false' arguments past to this service from users // clicking OFF/disable when things are already disabled. // store.setUniversalTwistInfoId(null); coachingMessage = "Twist configuration off"; } } catch (Exception e) { logger.error("Unable to properly set Twist configuration.", e); } if (PARAMETER_KEY_RESPONSE_TYPE_VALUE_JSON.equalsIgnoreCase(responseType)) { // *********************** // BEGIN - JSON response // *********************** resp.setContentType("application/json"); PrintWriter out = resp.getWriter(); try { JSONObject jsonResponseObject = new JSONObject(); if (twistInfo != null) { jsonObject.put("success", coachingMessage); } else { jsonObject.put("fail", "Unable to set twist configuration."); } jsonResponseObject.put("result", jsonObject); out.println(jsonResponseObject.toString()); } catch (JSONException jsonException) { throw new ServletException(jsonException); } out.flush(); out.close(); return; // *********************** // END - JSON response // *********************** } else { List<TwistInfo> twistInfoList = store.getTwistInfoList(); Util.saveSuccessMessage("Twist configuration updated", req); req.setAttribute("twistInfoList", twistInfoList); req.setAttribute("twistInfoIdEnabled", store.getUniversalTwistInfoId()); RequestDispatcher dispatch = req.getRequestDispatcher("/twistinfo_setup.jsp"); dispatch.forward(req, resp); return; } } }