View Javadoc

1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2014 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  }