001/*
002 * Logback: the reliable, generic, fast and flexible logging framework.
003 * Copyright (C) 1999-2022, QOS.ch. All rights reserved.
004 *
005 * This program and the accompanying materials are dual-licensed under
006 * either the terms of the Eclipse Public License v1.0 as published by
007 * the Eclipse Foundation
008 *
009 *   or (per the licensee's choosing)
010 *
011 * under the terms of the GNU Lesser General Public License version 2.1
012 * as published by the Free Software Foundation.
013 */
014package ch.qos.logback.core.testUtil;
015
016import java.util.Random;
017
018public class RandomUtil {
019
020    private static Random random = new Random();
021
022    public static int getRandomServerPort() {
023        int r = random.nextInt(20000);
024        // the first 1024 ports are usually reserved for the OS
025        return r + 1024;
026    }
027
028    public static int getPositiveInt() {
029        int r = random.nextInt();
030        if (r < 0) {
031            r = -r;
032        }
033        return r;
034    }
035}