/**
* Pretty-formatting for duration.
*
* @param ms Millisecond to format.
* @return Formatted presentation.
*/
private static String formatDuration(long ms) {
assert ms >= 0;
if (ms == 0) return "< 1 ms";
SB sb = new SB();
long dd = ms / 1440000; // 1440 mins = 60 mins * 24 hours
if (dd > 0) sb.a(dd).a(dd == 1 ? " day " : " days ");
ms %= 1440000;
long hh = ms / 60000;
if (hh > 0) sb.a(hh).a(hh == 1 ? " hour " : " hours ");
long min = ms / 60000;
if (min > 0) sb.a(min).a(min == 1 ? " min " : " mins ");
ms %= 60000;
if (ms > 0) sb.a(ms).a(" ms ");
return sb.toString().trim();
}
/**
* @param flags Flags.
* @return String builder containing all flags.
*/
static String toString(short flags) {
SB sb = new SB();
for (Mask m : MASKS) {
if (m.ordinal() != 0) sb.a('|');
sb.a(m.name().toLowerCase()).a('=').a(m.bit(flags));
}
return sb.toString();
}