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 }