1 //
2 // ========================================================================
3 // Copyright (c) 1995-2016 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.api;
20
21 /**
22 * Default implementation of the {@link WebSocketListener}.
23 * <p>
24 * Convenient abstract class to base standard WebSocket implementations off of.
25 */
26 public class WebSocketAdapter implements WebSocketListener
27 {
28 private volatile Session session;
29
30 public RemoteEndpoint getRemote()
31 {
32 Session sess = this.session;
33 return sess == null?null:session.getRemote();
34 }
35
36 public Session getSession()
37 {
38 return session;
39 }
40
41 public boolean isConnected()
42 {
43 Session sess = this.session;
44 return (sess != null) && (sess.isOpen());
45 }
46
47 public boolean isNotConnected()
48 {
49 Session sess = this.session;
50 return (sess == null) || (!sess.isOpen());
51 }
52
53 @Override
54 public void onWebSocketBinary(byte[] payload, int offset, int len)
55 {
56 /* do nothing */
57 }
58
59 @Override
60 public void onWebSocketClose(int statusCode, String reason)
61 {
62 this.session = null;
63 }
64
65 @Override
66 public void onWebSocketConnect(Session sess)
67 {
68 this.session = sess;
69 }
70
71 @Override
72 public void onWebSocketError(Throwable cause)
73 {
74 /* do nothing */
75 }
76
77 @Override
78 public void onWebSocketText(String message)
79 {
80 /* do nothing */
81 }
82 }