1 //
2 // ========================================================================
3 // Copyright (c) 1995-2012 Mort Bay Consulting Pty. Ltd.
4 // ------------------------------------------------------------------------
5 // All rights reserved. This program and the accompanying materials
6 // are made available under the terms of the Eclipse Public License v1.0
7 // and Apache License v2.0 which accompanies this distribution.
8 //
9 // The Eclipse Public License is available at
10 // http://www.eclipse.org/legal/epl-v10.html
11 //
12 // The Apache License v2.0 is available at
13 // http://www.opensource.org/licenses/apache2.0.php
14 //
15 // You may elect to redistribute this code under either of these licenses.
16 // ========================================================================
17 //
18
19 package org.eclipse.jetty.websocket.common;
20
21 import java.util.concurrent.Callable;
22 import java.util.concurrent.Future;
23 import java.util.concurrent.FutureTask;
24
25 import javax.net.websocket.SendHandler;
26 import javax.net.websocket.SendResult;
27
28 public class FailedFuture extends FutureTask<SendResult> implements Future<SendResult>
29 {
30 private static class FailedRunner implements Callable<SendResult>
31 {
32 private SendHandler completion;
33 private Throwable error;
34
35 public FailedRunner(SendHandler completion, Throwable error)
36 {
37 this.completion = completion;
38 this.error = error;
39 }
40
41 @Override
42 public SendResult call() throws Exception
43 {
44 SendResult result = new SendResult(this.error);
45 if (completion != null)
46 {
47 completion.setResult(result);
48 }
49 return result;
50 }
51 }
52
53 public FailedFuture(SendHandler completion, Throwable error)
54 {
55 super(new FailedRunner(completion,error));
56 run();
57 }
58 }