| // |
| // ======================================================================== |
| // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package com.acme.test; |
| |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| |
| import javax.annotation.PostConstruct; |
| import javax.annotation.Resource; |
| import javax.servlet.AsyncContext; |
| import javax.servlet.AsyncEvent; |
| import javax.servlet.AsyncListener; |
| import javax.servlet.ServletException; |
| import javax.servlet.annotation.WebServlet; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| @WebServlet(urlPatterns="/asy/*", asyncSupported=true) |
| public class AsyncListenerServlet extends HttpServlet |
| { |
| public static class MyAsyncListener implements AsyncListener |
| { |
| @Resource(mappedName="maxAmount") |
| private Double maxAmount; |
| |
| boolean postConstructCalled = false; |
| boolean resourceInjected = false; |
| |
| @PostConstruct |
| public void postConstruct() |
| { |
| postConstructCalled = true; |
| resourceInjected = (maxAmount != null); |
| } |
| |
| public boolean isPostConstructCalled() |
| { |
| return postConstructCalled; |
| } |
| |
| public boolean isResourceInjected() |
| { |
| return resourceInjected; |
| } |
| |
| @Override |
| public void onComplete(AsyncEvent event) throws IOException |
| { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| @Override |
| public void onTimeout(AsyncEvent event) throws IOException |
| { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| @Override |
| public void onError(AsyncEvent event) throws IOException |
| { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| @Override |
| public void onStartAsync(AsyncEvent event) throws IOException |
| { |
| // TODO Auto-generated method stub |
| |
| } |
| } |
| |
| |
| protected void doPost(HttpServletRequest req, HttpServletResponse resp) |
| throws ServletException, IOException |
| { |
| AsyncContext asyncContext = req.startAsync(); |
| MyAsyncListener listener = asyncContext.createListener(MyAsyncListener.class); |
| |
| PrintWriter writer = resp.getWriter(); |
| writer.println( "<html>"); |
| writer.println("<HEAD><link rel=\"stylesheet\" type=\"text/css\" href=\"../stylesheet.css\"/></HEAD>"); |
| writer.println( "<body>"); |
| writer.println("<h1>AsyncListener</h2>"); |
| writer.println("<pre>"); |
| writer.println("<h2>@PostConstruct Callback</h2>"); |
| writer.println("<pre>"); |
| writer.println("@PostConstruct"); |
| writer.println("private void postConstruct ()"); |
| writer.println("{}"); |
| writer.println("</pre>"); |
| writer.println("<br/><b>Result: "+(listener.isPostConstructCalled()?"<span class=\"pass\">PASS</span>":"<span class=\"fail\">FAIL</span>")+"</b>"); |
| |
| writer.println("<h2>@Resource Injection for env-entry </h2>"); |
| writer.println("<pre>"); |
| writer.println("@Resource(mappedName=\"maxAmount\")"); |
| writer.println("private Double maxAmount;"); |
| writer.println("</pre>"); |
| writer.println("<br/><b>Result: "+(listener.isResourceInjected()?" <span class=\"pass\">PASS</span>":" <span class=\"FAIL\">FAIL</span>")+"</b>"); |
| |
| writer.println( "</body>"); |
| writer.println( "</html>"); |
| writer.flush(); |
| writer.close(); |
| |
| asyncContext.complete(); |
| } |
| } |
