[IO-294] Adding FileUtils.byteCountToDisplaySize(long size, boolean useSiUnits)

• Type: New Feature
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.1
• Component/s: Utilities
• Assignee: Unassigned
• Reporter: Jean-Noel Rouvignac
• Created: 12/Dec/11 19:03
• Updated: 15/Feb/24 04:33

Description

I have written a little Utility method that might benefit Commons IO:

public class FileUtils {

    /**
     * Returns a human-readable version of the file size (original is in bytes). The implementation has the following features:
     * <ul>
     * <li>Supports the SI or IEC units.</li>
     * <li>Supports I18n</li>
     * <li>Display a one digit remainder (rounded down if less than 5, rounded up otherwise)</li>
     * <li>Once the main unit is >= 100, drops the remainder which would be over precision.</li>
     * </ul>
     * 
     * @param size The number of bytes.
     * @param useSiUnits if false, uses the IEC (International Electrotechnical Commission) units (powers of 2), else uses SI (International System of Units)
     *            units (powers of 10).
     * @return A human-readable display value (includes units).
     */
    public static String byteCountToDisplaySize(long size, boolean useSiUnits) {

Issue Links

• is duplicated by: IO-373 FileUtils.byteCountToDisplaySize improvement/rounding issues