Java tutorial
/** * Copyright 2012 Comcast Corporation * * 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 com.comcast.cns.controller; import java.io.IOException; import java.io.PrintWriter; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.log4j.Logger; import com.amazonaws.services.sns.model.PublishRequest; import com.comcast.cmb.common.controller.AdminServletBase; import com.comcast.cmb.common.controller.CMBControllerServlet; import com.comcast.cns.util.Util; /** * Publish to topic admin page * @author tina, bwolf, aseem * */ public class CNSPublishToTopicPageServlet extends AdminServletBase { private static final long serialVersionUID = 1L; private static Logger logger = Logger.getLogger(CNSPublishToTopicPageServlet.class); @Override public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { if (redirectUnauthenticatedUser(request, response)) { return; } CMBControllerServlet.valueAccumulator.initializeAllCounters(); response.setContentType("text/html"); PrintWriter out = response.getWriter(); String topicArn = request.getParameter("topicArn"); String userId = request.getParameter("userId"); String message = request.getParameter("message"); String subject = request.getParameter("subject"); Map<?, ?> parameters = request.getParameterMap(); connect(request); out.println("<html>"); header(request, out, "Publish"); out.println("<script type='text/javascript' language='javascript'>"); out.println("function changeMsgStructure(type) { "); out.println(" if (type == 'same') "); out.println(" document.getElementById('message').value = ''; "); out.println(" else "); out.print(" document.getElementById('message').value = '{ \\n default: <enter your message here>,\\n' + "); out.print("' email: <enter your message here>,\\n' + "); out.print("' cqs: <enter your message here>,\\n' +"); //out.print("' sms: <enter your message here>,\\n'+"); out.print("' http: <enter your message here>,\\n'+"); out.print("' https: <enter your message here> \\n}';"); out.println("}"); out.println("</script>"); out.println("<body>"); out.println("<h2>Publish to Topic</h2>"); if (parameters.containsKey("Publish")) { out.println("<table><tr><td><b>"); try { PublishRequest publishRequest = new PublishRequest(topicArn, message, subject); sns.publish(publishRequest); logger.debug("event=publish topic_arn=" + topicArn + " user_id= " + userId); } catch (Exception ex) { logger.error("event=publish topic_arn=" + topicArn + " user_id= " + userId); throw new ServletException(ex); } out.println("</b></td></tr>"); out.println( "<tr><td align=right><br/><input type='button' name='Close' value='Close' onclick='window.close()'></td></tr></table>"); } else { if (topicArn != null) { out.print("<form action=\"/webui/cnsuser/publish?topicArn=" + topicArn + "&userId=" + userId + "\" " + "method=POST>"); out.println("<table><tr><td><b>Topic Name:</b></td><td>" + Util.getNameFromTopicArn(topicArn) + "</td></tr>"); out.println("<tr><td> </td><td> </td></tr>"); out.println( "<tr><td valign=top><b>Subject:</b></td><td valign=top><input type='text' size='90' name='subject'><br/><I><font color='grey'>Up to 100 printable ASCII characters (optional)</font></I></td></tr>"); out.println("<tr><td> </td><td> </td></tr>"); out.println( "<tr><td valign=top><b>Message:</b></td><td valign=top><textarea name='message' cols = '70' rows='8' id='message' ></textarea><br/><I><font color='grey'>Up to 256 KB of Unicode text</font></I></td></tr>"); out.println("<tr><td> </td><td> </td></tr>"); out.println( "<tr><td> </td><td><input type='radio' name='msgType' value='same' checked='checked' onclick='changeMsgStructure(this.value)'/>Use same message body for all protocols</br/>"); out.println( "<input type='radio' name='msgType' value='json' onclick='changeMsgStructure(this.value)'/>Use different message body for different protocols</td></tr>"); out.println("</table>"); //out.println("<p><i><font color='grey'>For SMS notifications, it is best to leave the Subject field blank and place your text in the Message field to send a maximum of 140 characters. If the Subject field is not blank, the text in the Subject field will be used as content for the SMS messages.</font></i></p>"); out.println("<hr/>"); out.println( "<input type='button' name='Cancel' value='Cancel' style='float:right;' onclick='window.close()'><input type='submit' name='Publish' value='Publish Message' style='float:right;'>"); out.println("</form>"); } } out.println("</body></html>"); CMBControllerServlet.valueAccumulator.deleteAllCounters(); } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } }