org.duracloud.syncui.util.FormatUtil Maven / Gradle / Ivy
/*
* The contents of this file are subject to the license and copyright
* detailed in the LICENSE and NOTICE files at the root of the source
* tree and available online at
*
* http://duracloud.org/license/
*/
package org.duracloud.syncui.util;
import java.text.DecimalFormat;
public class FormatUtil {
private FormatUtil() {
// Ensures no instances are made of this class, as there are only static members.
}
public static String readableFileSize(long size) {
if (size <= 0) {
return "0";
}
final String[] units = new String[] {"B", "KB", "MB", "GB", "TB"};
int digitGroups = (int) (Math.log10(size) / Math.log10(1000));
return new DecimalFormat("#,##0.#").format(size / Math.pow(1000, digitGroups)) + " " + units[digitGroups];
}
}