src.main.java.com.vincomobile.fw.basic.tools.IDUtil Maven / Gradle / Ivy

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Vincomobile framework (Basic components)

There is a newer version: 5.1.0-RELEASE

package com.vincomobile.fw.basic.tools;

import org.apache.commons.lang.RandomStringUtils;

import java.util.Calendar;
import java.util.Date;
import java.util.Random;

public final class IDUtil {

    private IDUtil() {
        throw new AssertionError();
    }

    // API

    public final static String randomPositiveLongAsString() {
        return Long.toString(randomPositiveLong());
    }

    public final static String randomNegativeLongAsString() {
        return Long.toString(randomNegativeLong());
    }

    public final static long randomPositiveLong() {
        long id = new Random().nextLong() * 10000;
        id = (id < 0) ? (-1 * id) : id;
        return id;
    }

    public final static long randomNegativeLong() {
        long id = new Random().nextLong() * 10000;
        id = (id > 0) ? (-1 * id) : id;
        return id;
    }

    public final static String randomPositiveIntAsString() {
        return Integer.toString(randomPositiveInt());
    }

    public final static String randomNegativeIntAsString() {
        return Integer.toString(randomNegativeInt());
    }

    public final static int randomPositiveInt() {
        int id = new Random().nextInt() * 10000;
        id = (id < 0) ? (-1 * id) : id;
        return id;
    }

    public final static int randomNegativeInt() {
        int id = new Random().nextInt() * 10000;
        id = (id > 0) ? (-1 * id) : id;
        return id;
    }

    public final static double randomPositiveDouble() {
        double id = new Random().nextDouble() * 10000;
        id = (id < 0) ? (-1 * id) : id;
        return id;
    }

    public final static double randomNegativeDouble() {
        double id = new Random().nextDouble() * 10000;
        id = (id > 0) ? (-1 * id) : id;
        return id;
    }

    public final static String randomString(int count) {
        return RandomStringUtils.randomAlphanumeric(count);
    }

    public final static String randomString() {
        return RandomStringUtils.randomAlphanumeric(10);
    }

    public final static boolean randomBoolean() {
        return randomPositiveInt() % 2 == 0;
    }

    public final static Date randomDate() {
        int days = randomPositiveInt() % 365;
        Calendar cal = Calendar.getInstance();
        cal.setTime(new Date());
        cal.add(Calendar.DAY_OF_YEAR, days);
        return cal.getTime();
    }
}