1 /*
2 * Logback: the reliable, generic, fast and flexible logging framework.
3 * Copyright (C) 1999-2022, QOS.ch. All rights reserved.
4 *
5 * This program and the accompanying materials are dual-licensed under
6 * either the terms of the Eclipse Public License v1.0 as published by
7 * the Eclipse Foundation
8 *
9 * or (per the licensee's choosing)
10 *
11 * under the terms of the GNU Lesser General Public License version 2.1
12 * as published by the Free Software Foundation.
13 */
14 package ch.qos.logback.core.testUtil;
15
16 import java.util.Random;
17
18 public class RandomUtil {
19
20 private static Random random = new Random();
21
22 public static int getRandomServerPort() {
23 int r = random.nextInt(20000);
24 // the first 1024 ports are usually reserved for the OS
25 return r + 1024;
26 }
27
28 public static int getPositiveInt() {
29 int r = random.nextInt();
30 if (r < 0) {
31 r = -r;
32 }
33 return r;
34 }
35 }