1 //
2 // ========================================================================
3 // Copyright (c) 1995-2013 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;
20
21 import java.util.Random;
22
23
24 public class RandomMaskGen implements MaskGen
25 {
26 private final Random _random;
27
28 public RandomMaskGen()
29 {
30 this(new Random());
31 }
32
33 public RandomMaskGen(Random random)
34 {
35 _random=random;
36 }
37
38 public void genMask(byte[] mask)
39 {
40 // The assumption is that this code is always called
41 // with an external lock held to prevent concurrent access
42 // Otherwise we need to synchronize on the _random.
43 _random.nextBytes(mask);
44 }
45 }