Mega Code Archive
Size formatting utility
<![CDATA[
//package freenet.support;
/**
* Size formatting utility.
*/
public class SizeUtil {
public final static String[] suffixes = { "B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB" };
public static String formatSize(long sz) {
return formatSize(sz, false);
}
public static String formatSizeWithoutSpace(long sz) {
String[] result = _formatSize(sz);
return result[0].concat(result[1]);
}
public static String formatSize(long sz, boolean useNonBreakingSpace) {
String[] result = _formatSize(sz);
return result[0].concat((useNonBreakingSpace ? "\u00a0" : " ")).concat(result[1]);
}
public static String[] _formatSize(long sz) {
long s = 1;
int i;
for(i=0;i<SizeUtil.suffixes.length;i++) {
s *= 1024;
if(s > sz) {
break;
// Smaller than multiplier [i] - use the previous one
}
}
s /= 1024; // we use the previous unit
if (s == 1) // Bytes? Then we don't need real numbers with a comma
{
return new String[] { String.valueOf(sz), SizeUtil.suffixes[0] };
}
else
{
double mantissa = (double)sz / (double)s;
String o = String.valueOf(mantissa);
if(o.indexOf('.') == 3)
o = o.substring(0, 3);
else if((o.indexOf('.') > -1) && (o.indexOf('E') == -1) && (o.length() > 4))
o = o.substring(0, 4);
if(i < SizeUtil.suffixes.length) // handle the case where the mantissa is Infinity
return new String[] { o , SizeUtil.suffixes[i] };
return new String[] { o , "" };
}
}
}
]]>