39 lines
1.2 KiB
Java
39 lines
1.2 KiB
Java
package de.mc8051.arma3launcher.utils;
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import java.text.DecimalFormat;
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/**
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* Created by gurkengewuerz.de on 27.03.2020.
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*/
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public class Humanize {
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private static final long K = 1024;
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private static final long M = K * K;
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private static final long G = M * K;
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private static final long T = G * K;
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public static String binaryPrefix(final long value){
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final long[] dividers = new long[] { T, G, M, K, 1 };
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final String[] units = new String[] { "TB", "GB", "MB", "KB", "B" };
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if(value < 1)
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throw new IllegalArgumentException("Invalid file size: " + value);
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String result = null;
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for(int i = 0; i < dividers.length; i++){
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final long divider = dividers[i];
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if(value >= divider){
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result = format(value, divider, units[i]);
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break;
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}
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}
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return result;
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}
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private static String format(final long value,
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final long divider,
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final String unit){
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final double result =
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divider > 1 ? (double) value / (double) divider : (double) value;
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return new DecimalFormat("#,##0.#").format(result) + " " + unit;
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}
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}
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