60 lines
1.8 KiB
Java
60 lines
1.8 KiB
Java
public final class Duration {
|
|
public static final Duration ZERO = new Duration(0, 0);
|
|
static final int MINUTES_PER_HOUR = 60;
|
|
static final int SECONDS_PER_MINUTE = 60;
|
|
static final int SECONDS_PER_HOUR = SECONDS_PER_MINUTE * MINUTES_PER_HOUR;
|
|
static final long NANOS_PER_SECOND = 1000_000_000L;
|
|
|
|
private final long seconds;
|
|
private final int nanos;
|
|
|
|
public Duration(long seconds, int nanos) {
|
|
this.seconds = seconds;
|
|
this.nanos = nanos;
|
|
}
|
|
|
|
@Override
|
|
public String toString() {
|
|
if (this == ZERO) {
|
|
return "PT0S";
|
|
}
|
|
long hours = seconds / SECONDS_PER_HOUR;
|
|
int minutes = (int) ((seconds % SECONDS_PER_HOUR) / SECONDS_PER_MINUTE);
|
|
int secs = (int) (seconds % SECONDS_PER_MINUTE);
|
|
StringBuilder buf = new StringBuilder(24);
|
|
buf.append("PT");
|
|
if (hours != 0) {
|
|
buf.append(hours).append('H');
|
|
}
|
|
if (minutes != 0) {
|
|
buf.append(minutes).append('M');
|
|
}
|
|
if (secs == 0 && nanos == 0 && buf.length() > 2) {
|
|
return buf.toString();
|
|
}
|
|
if (secs < 0 && nanos > 0) {
|
|
if (secs == -1) {
|
|
buf.append("-0");
|
|
} else {
|
|
buf.append(secs + 1);
|
|
}
|
|
} else {
|
|
buf.append(secs);
|
|
}
|
|
if (nanos > 0) {
|
|
int pos = buf.length();
|
|
if (secs < 0) {
|
|
buf.append(2 * NANOS_PER_SECOND - nanos);
|
|
} else {
|
|
buf.append(nanos + NANOS_PER_SECOND);
|
|
}
|
|
while (buf.charAt(buf.length() - 1) == '0') {
|
|
buf.setLength(buf.length() - 1);
|
|
}
|
|
buf.setCharAt(pos, '.');
|
|
}
|
|
buf.append('S');
|
|
return buf.toString();
|
|
}
|
|
}
|