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.jsr356.decoders;
20
21 import javax.websocket.DecodeException;
22 import javax.websocket.Decoder;
23
24 /**
25 * Default implementation of the Text Message to {@link Long} decoder
26 */
27 public class LongDecoder extends AbstractDecoder implements Decoder.Text<Long>
28 {
29 public static final LongDecoder INSTANCE = new LongDecoder();
30
31 @Override
32 public Long decode(String s) throws DecodeException
33 {
34 try
35 {
36 return Long.parseLong(s);
37 }
38 catch (NumberFormatException e)
39 {
40 throw new DecodeException(s,"Unable to parse Long",e);
41 }
42 }
43
44 @Override
45 public boolean willDecode(String s)
46 {
47 if (s == null)
48 {
49 return false;
50 }
51 try
52 {
53 Long.parseLong(s);
54 return true;
55 }
56 catch (NumberFormatException e)
57 {
58 return false;
59 }
60 }
61 }