J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | * accompanied this code). |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License version |
| 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | import java.net.*; |
| 25 | import java.util.*; |
| 26 | import java.io.*; |
| 27 | import com.sun.net.httpserver.*; |
| 28 | import java.util.concurrent.Executors; |
| 29 | import java.util.concurrent.ExecutorService; |
| 30 | |
| 31 | public class RetryPost |
| 32 | { |
| 33 | static boolean shouldRetry = true; |
| 34 | |
| 35 | com.sun.net.httpserver.HttpServer httpServer; |
| 36 | MyHandler httpHandler; |
| 37 | ExecutorService executorService; |
| 38 | |
| 39 | public static void main(String[] args) { |
| 40 | if (args.length == 1 && args[0].equals("noRetry")) |
| 41 | shouldRetry = false; |
| 42 | |
| 43 | new RetryPost(); |
| 44 | } |
| 45 | |
| 46 | public RetryPost() { |
| 47 | try { |
| 48 | startHttpServer(shouldRetry); |
| 49 | doClient(); |
| 50 | } catch (IOException ioe) { |
| 51 | System.err.println(ioe); |
| 52 | } |
| 53 | } |
| 54 | |
| 55 | void doClient() { |
| 56 | try { |
| 57 | InetSocketAddress address = httpServer.getAddress(); |
| 58 | URL url = new URL("http://" + address.getHostName() + ":" + address.getPort() + "/test/"); |
| 59 | HttpURLConnection uc = (HttpURLConnection)url.openConnection(); |
| 60 | uc.setDoOutput(true); |
| 61 | uc.setRequestMethod("POST"); |
| 62 | uc.getResponseCode(); |
| 63 | |
| 64 | // if we reach here then we have failed |
| 65 | throw new RuntimeException("Failed: POST request being retried"); |
| 66 | |
| 67 | } catch (SocketException se) { |
| 68 | // this is what we expect to happen and is OK. |
| 69 | if (shouldRetry && httpHandler.getCallCount() != 2) |
| 70 | throw new RuntimeException("Failed: Handler should have been called twice. " + |
| 71 | "It was called "+ httpHandler.getCallCount() + " times"); |
| 72 | else if (!shouldRetry && httpHandler.getCallCount() != 1) |
| 73 | throw new RuntimeException("Failed: Handler should have only been called once" + |
| 74 | "It was called "+ httpHandler.getCallCount() + " times"); |
| 75 | } catch (IOException e) { |
| 76 | e.printStackTrace(); |
| 77 | } finally { |
| 78 | httpServer.stop(1); |
| 79 | executorService.shutdown(); |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | /** |
| 84 | * Http Server |
| 85 | */ |
| 86 | public void startHttpServer(boolean shouldRetry) throws IOException { |
| 87 | httpServer = com.sun.net.httpserver.HttpServer.create(new InetSocketAddress(0), 0); |
| 88 | httpHandler = new MyHandler(shouldRetry); |
| 89 | |
| 90 | HttpContext ctx = httpServer.createContext("/test/", httpHandler); |
| 91 | |
| 92 | executorService = Executors.newCachedThreadPool(); |
| 93 | httpServer.setExecutor(executorService); |
| 94 | httpServer.start(); |
| 95 | } |
| 96 | |
| 97 | class MyHandler implements HttpHandler { |
| 98 | int callCount = 0; |
| 99 | boolean shouldRetry; |
| 100 | |
| 101 | public MyHandler(boolean shouldRetry) { |
| 102 | this.shouldRetry = shouldRetry; |
| 103 | } |
| 104 | |
| 105 | public void handle(HttpExchange t) throws IOException { |
| 106 | callCount++; |
| 107 | |
| 108 | if (callCount > 1 && !shouldRetry) { |
| 109 | // if this bug has been fixed then this method will not be called twice |
| 110 | // when -Dhttp.retryPost=false |
| 111 | t.sendResponseHeaders(400, -1); // indicate failure by returning 400 |
| 112 | } else { |
| 113 | // simply close out the stream without sending any data. |
| 114 | OutputStream os = t.getResponseBody(); |
| 115 | os.close(); |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | public int getCallCount() { |
| 120 | return callCount; |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | } |