1 //
2 // ========================================================================
3 // Copyright (c) 1995-2015 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.frames;
20
21 import org.eclipse.jetty.util.StringUtil;
22 import org.eclipse.jetty.websocket.common.OpCode;
23
24 public class CloseFrame extends ControlFrame
25 {
26 public CloseFrame()
27 {
28 super(OpCode.CLOSE);
29 }
30
31 @Override
32 public Type getType()
33 {
34 return Type.CLOSE;
35 }
36
37 /**
38 * Truncate arbitrary reason into something that will fit into the CloseFrame limits.
39 *
40 * @param reason
41 * the arbitrary reason to possibly truncate.
42 * @return the possibly truncated reason string.
43 */
44 public static String truncate(String reason)
45 {
46 return StringUtil.truncate(reason,(ControlFrame.MAX_CONTROL_PAYLOAD - 2));
47 }
48 }