public static Duration parse(CharSequence text) {
Objects.requireNonNull(text, "text");
Matcher matcher = PATTERN.matcher(text);
if (matcher.matches()) {
if ("T".equals(matcher.group(3)) == false) {
boolean negate = "-".equals(matcher.group(1));
String dayMatch = matcher.group(2);
String hourMatch = matcher.group(4);
String minuteMatch = matcher.group(5);
String secondMatch = matcher.group(6);
String fractionMatch = matcher.group(7);
if (dayMatch != null || hourMatch != null || minuteMatch != null || secondMatch != null) {
long daysAsSecs = parseNumber(text, dayMatch, SECONDS_PER_DAY, "days");
long hoursAsSecs = parseNumber(text, hourMatch, SECONDS_PER_HOUR, "hours");
long minsAsSecs = parseNumber(text, minuteMatch, SECONDS_PER_MINUTE, "minutes");
long seconds = parseNumber(text, secondMatch, 1, "seconds");
int nanos = parseFraction(text, fractionMatch, seconds < 0 ? -1 : 1);
try {
return create(negate, daysAsSecs, hoursAsSecs, minsAsSecs, seconds, nanos);
} catch (ArithmeticException ex) {
throw (DateTimeParseException)
new DateTimeParseException("Text cannot be parsed to a Duration: overflow", text, 0)
.initCause(ex);
}
}
}
}
throw new DateTimeParseException("Text cannot be parsed to a Duration", text, 0);
}
public final class Duration implements TemporalAmount, Comparable<Duration>, Serializable {
public static final Duration ZERO = new Duration(0, 0);
private static final long serialVersionUID = 3078945930695997490L;
private static final BigInteger BI_NANOS_PER_SECOND = BigInteger.valueOf(NANOS_PER_SECOND);
private static final Pattern PATTERN =
Pattern.compile(
"([-+]?)P(?:([-+]?[0-9]+)D)?"
+ "(T(?:([-+]?[0-9]+)H)?(?:([-+]?[0-9]+)M)?(?:([-+]?[0-9]+)(?:[.,]([0-9]{0,9}))?S)?)?",
Pattern.CASE_INSENSITIVE);
private final long seconds;
private final int nanos;
private Duration(long seconds, int nanos) {
super();
this.seconds = seconds;
this.nanos = nanos;
}
public static Duration ofDays(long days) {
return create(Math.multiplyExact(days, SECONDS_PER_DAY), 0);
}
public static Duration ofHours(long hours) {
return create(Math.multiplyExact(hours, SECONDS_PER_HOUR), 0);
}
public static Duration ofMinutes(long minutes) {
return create(Math.multiplyExact(minutes, SECONDS_PER_MINUTE), 0);
}
public static Duration ofSeconds(long seconds) {
return create(seconds, 0);
}
public static Duration ofSeconds(long seconds, long nanoAdjustment) {
long secs = Math.addExact(seconds, Math.floorDiv(nanoAdjustment, NANOS_PER_SECOND));
int nos = (int) Math.floorMod(nanoAdjustment, NANOS_PER_SECOND);
return create(secs, nos);
}
public static Duration ofMillis(long millis) {
long secs = millis / 1000;
int mos = (int) (millis % 1000);
if (mos < 0) {
mos += 1000;
secs--;
}
return create(secs, mos * 1000_000);
}
public static Duration ofNanos(long nanos) {
long secs = nanos / NANOS_PER_SECOND;
int nos = (int) (nanos % NANOS_PER_SECOND);
if (nos < 0) {
nos += NANOS_PER_SECOND;
secs--;
}
return create(secs, nos);
}
public static Duration of(long amount, TemporalUnit unit) {
return ZERO.plus(amount, unit);
}
public static Duration from(TemporalAmount amount) {
Objects.requireNonNull(amount, "amount");
Duration duration = ZERO;
for (TemporalUnit unit : amount.getUnits()) {
duration = duration.plus(amount.get(unit), unit);
}
return duration;
}
public static Duration parse(CharSequence text) {
Objects.requireNonNull(text, "text");
Matcher matcher = PATTERN.matcher(text);
if (matcher.matches()) {
if ("T".equals(matcher.group(3)) == false) {
boolean negate = "-".equals(matcher.group(1));
String dayMatch = matcher.group(2);
String hourMatch = matcher.group(4);
String minuteMatch = matcher.group(5);
String secondMatch = matcher.group(6);
String fractionMatch = matcher.group(7);
if (dayMatch != null || hourMatch != null || minuteMatch != null || secondMatch != null) {
long daysAsSecs = parseNumber(text, dayMatch, SECONDS_PER_DAY, "days");
long hoursAsSecs = parseNumber(text, hourMatch, SECONDS_PER_HOUR, "hours");
long minsAsSecs = parseNumber(text, minuteMatch, SECONDS_PER_MINUTE, "minutes");
long seconds = parseNumber(text, secondMatch, 1, "seconds");
int nanos = parseFraction(text, fractionMatch, seconds < 0 ? -1 : 1);
try {
return create(negate, daysAsSecs, hoursAsSecs, minsAsSecs, seconds, nanos);
} catch (ArithmeticException ex) {
throw (DateTimeParseException)
new DateTimeParseException("Text cannot be parsed to a Duration: overflow", text, 0)
.initCause(ex);
}
}
}
}
throw new DateTimeParseException("Text cannot be parsed to a Duration", text, 0);
}
private static long parseNumber(
CharSequence text, String parsed, int multiplier, String errorText) {
if (parsed == null) {
return 0;
}
try {
long val = Long.parseLong(parsed);
return Math.multiplyExact(val, multiplier);
} catch (NumberFormatException | ArithmeticException ex) {
throw (DateTimeParseException)
new DateTimeParseException("Text cannot be parsed to a Duration: " + errorText, text, 0)
.initCause(ex);
}
}
private static int parseFraction(CharSequence text, String parsed, int negate) {
if (parsed == null || parsed.length() == 0) {
return 0;
}
try {
parsed = (parsed + "000000000").substring(0, 9);
return Integer.parseInt(parsed) * negate;
} catch (NumberFormatException | ArithmeticException ex) {
throw (DateTimeParseException)
new DateTimeParseException("Text cannot be parsed to a Duration: fraction", text, 0)
.initCause(ex);
}
}
private static Duration create(
boolean negate, long daysAsSecs, long hoursAsSecs, long minsAsSecs, long secs, int nanos) {
long seconds =
Math.addExact(daysAsSecs, Math.addExact(hoursAsSecs, Math.addExact(minsAsSecs, secs)));
if (negate) {
return ofSeconds(seconds, nanos).negated();
}
return ofSeconds(seconds, nanos);
}
public static Duration between(Temporal startInclusive, Temporal endExclusive) {
try {
return ofNanos(startInclusive.until(endExclusive, NANOS));
} catch (DateTimeException | ArithmeticException ex) {
long secs = startInclusive.until(endExclusive, SECONDS);
long nanos;
try {
nanos = endExclusive.getLong(NANO_OF_SECOND) - startInclusive.getLong(NANO_OF_SECOND);
if (secs > 0 && nanos < 0) {
secs++;
} else if (secs < 0 && nanos > 0) {
secs--;
}
} catch (DateTimeException ex2) {
nanos = 0;
}
return ofSeconds(secs, nanos);
}
}
private static Duration create(long seconds, int nanoAdjustment) {
if ((seconds | nanoAdjustment) == 0) {
return ZERO;
}
return new Duration(seconds, nanoAdjustment);
}
private static Duration create(BigDecimal seconds) {
BigInteger nanos = seconds.movePointRight(9).toBigIntegerExact();
BigInteger[] divRem = nanos.divideAndRemainder(BI_NANOS_PER_SECOND);
if (divRem[0].bitLength() > 63) {
throw new ArithmeticException("Exceeds capacity of Duration: " + nanos);
}
return ofSeconds(divRem[0].longValue(), divRem[1].intValue());
}
static Duration readExternal(DataInput in) throws IOException {
long seconds = in.readLong();
int nanos = in.readInt();
return Duration.ofSeconds(seconds, nanos);
}
@Override
public long get(TemporalUnit unit) {
if (unit == SECONDS) {
return seconds;
} else if (unit == NANOS) {
return nanos;
} else {
throw new UnsupportedTemporalTypeException("Unsupported unit: " + unit);
}
}
@Override
public List<TemporalUnit> getUnits() {
return DurationUnits.UNITS;
}
public boolean isZero() {
return (seconds | nanos) == 0;
}
public boolean isNegative() {
return seconds < 0;
}
public long getSeconds() {
return seconds;
}
public int getNano() {
return nanos;
}
public Duration withSeconds(long seconds) {
return create(seconds, nanos);
}
public Duration withNanos(int nanoOfSecond) {
NANO_OF_SECOND.checkValidIntValue(nanoOfSecond);
return create(seconds, nanoOfSecond);
}
public Duration plus(Duration duration) {
return plus(duration.getSeconds(), duration.getNano());
}
public Duration plus(long amountToAdd, TemporalUnit unit) {
Objects.requireNonNull(unit, "unit");
if (unit == DAYS) {
return plus(Math.multiplyExact(amountToAdd, SECONDS_PER_DAY), 0);
}
if (unit.isDurationEstimated()) {
throw new UnsupportedTemporalTypeException("Unit must not have an estimated duration");
}
if (amountToAdd == 0) {
return this;
}
if (unit instanceof ChronoUnit) {
switch ((ChronoUnit) unit) {
case NANOS:
return plusNanos(amountToAdd);
case MICROS:
return plusSeconds((amountToAdd / (1000_000L * 1000)) * 1000)
.plusNanos((amountToAdd % (1000_000L * 1000)) * 1000);
case MILLIS:
return plusMillis(amountToAdd);
case SECONDS:
return plusSeconds(amountToAdd);
}
return plusSeconds(Math.multiplyExact(unit.getDuration().seconds, amountToAdd));
}
Duration duration = unit.getDuration().multipliedBy(amountToAdd);
return plusSeconds(duration.getSeconds()).plusNanos(duration.getNano());
}
public Duration plusDays(long daysToAdd) {
return plus(Math.multiplyExact(daysToAdd, SECONDS_PER_DAY), 0);
}
public Duration plusHours(long hoursToAdd) {
return plus(Math.multiplyExact(hoursToAdd, SECONDS_PER_HOUR), 0);
}
public Duration plusMinutes(long minutesToAdd) {
return plus(Math.multiplyExact(minutesToAdd, SECONDS_PER_MINUTE), 0);
}
public Duration plusSeconds(long secondsToAdd) {
return plus(secondsToAdd, 0);
}
public Duration plusMillis(long millisToAdd) {
return plus(millisToAdd / 1000, (millisToAdd % 1000) * 1000_000);
}
public Duration plusNanos(long nanosToAdd) {
return plus(0, nanosToAdd);
}
private Duration plus(long secondsToAdd, long nanosToAdd) {
if ((secondsToAdd | nanosToAdd) == 0) {
return this;
}
long epochSec = Math.addExact(seconds, secondsToAdd);
epochSec = Math.addExact(epochSec, nanosToAdd / NANOS_PER_SECOND);
nanosToAdd = nanosToAdd % NANOS_PER_SECOND;
long nanoAdjustment = nanos + nanosToAdd;
return ofSeconds(epochSec, nanoAdjustment);
}
public Duration minus(Duration duration) {
long secsToSubtract = duration.getSeconds();
int nanosToSubtract = duration.getNano();
if (secsToSubtract == Long.MIN_VALUE) {
return plus(Long.MAX_VALUE, -nanosToSubtract).plus(1, 0);
}
return plus(-secsToSubtract, -nanosToSubtract);
}
public Duration minus(long amountToSubtract, TemporalUnit unit) {
return (amountToSubtract == Long.MIN_VALUE
? plus(Long.MAX_VALUE, unit).plus(1, unit)
: plus(-amountToSubtract, unit));
}
public Duration minusDays(long daysToSubtract) {
return (daysToSubtract == Long.MIN_VALUE
? plusDays(Long.MAX_VALUE).plusDays(1)
: plusDays(-daysToSubtract));
}
public Duration minusHours(long hoursToSubtract) {
return (hoursToSubtract == Long.MIN_VALUE
? plusHours(Long.MAX_VALUE).plusHours(1)
: plusHours(-hoursToSubtract));
}
public Duration minusMinutes(long minutesToSubtract) {
return (minutesToSubtract == Long.MIN_VALUE
? plusMinutes(Long.MAX_VALUE).plusMinutes(1)
: plusMinutes(-minutesToSubtract));
}
public Duration minusSeconds(long secondsToSubtract) {
return (secondsToSubtract == Long.MIN_VALUE
? plusSeconds(Long.MAX_VALUE).plusSeconds(1)
: plusSeconds(-secondsToSubtract));
}
public Duration minusMillis(long millisToSubtract) {
return (millisToSubtract == Long.MIN_VALUE
? plusMillis(Long.MAX_VALUE).plusMillis(1)
: plusMillis(-millisToSubtract));
}
public Duration minusNanos(long nanosToSubtract) {
return (nanosToSubtract == Long.MIN_VALUE
? plusNanos(Long.MAX_VALUE).plusNanos(1)
: plusNanos(-nanosToSubtract));
}
public Duration multipliedBy(long multiplicand) {
if (multiplicand == 0) {
return ZERO;
}
if (multiplicand == 1) {
return this;
}
return create(toSeconds().multiply(BigDecimal.valueOf(multiplicand)));
}
public Duration dividedBy(long divisor) {
if (divisor == 0) {
throw new ArithmeticException("Cannot divide by zero");
}
if (divisor == 1) {
return this;
}
return create(toSeconds().divide(BigDecimal.valueOf(divisor), RoundingMode.DOWN));
}
private BigDecimal toSeconds() {
return BigDecimal.valueOf(seconds).add(BigDecimal.valueOf(nanos, 9));
}
public Duration negated() {
return multipliedBy(-1);
}
public Duration abs() {
return isNegative() ? negated() : this;
}
@Override
public Temporal addTo(Temporal temporal) {
if (seconds != 0) {
temporal = temporal.plus(seconds, SECONDS);
}
if (nanos != 0) {
temporal = temporal.plus(nanos, NANOS);
}
return temporal;
}
@Override
public Temporal subtractFrom(Temporal temporal) {
if (seconds != 0) {
temporal = temporal.minus(seconds, SECONDS);
}
if (nanos != 0) {
temporal = temporal.minus(nanos, NANOS);
}
return temporal;
}
public long toDays() {
return seconds / SECONDS_PER_DAY;
}
public long toHours() {
return seconds / SECONDS_PER_HOUR;
}
public long toMinutes() {
return seconds / SECONDS_PER_MINUTE;
}
public long toMillis() {
long millis = Math.multiplyExact(seconds, 1000);
millis = Math.addExact(millis, nanos / 1000_000);
return millis;
}
public long toNanos() {
long totalNanos = Math.multiplyExact(seconds, NANOS_PER_SECOND);
totalNanos = Math.addExact(totalNanos, nanos);
return totalNanos;
}
@Override
public int compareTo(Duration otherDuration) {
int cmp = Long.compare(seconds, otherDuration.seconds);
if (cmp != 0) {
return cmp;
}
return nanos - otherDuration.nanos;
}
@Override
public boolean equals(Object otherDuration) {
if (this == otherDuration) {
return true;
}
if (otherDuration instanceof Duration) {
Duration other = (Duration) otherDuration;
return this.seconds == other.seconds && this.nanos == other.nanos;
}
return false;
}
@Override
public int hashCode() {
return ((int) (seconds ^ (seconds >>> 32))) + (51 * 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();
}
private Object writeReplace() {
return new Ser(Ser.DURATION_TYPE, this);
}
private void readObject(ObjectInputStream s) throws InvalidObjectException {
throw new InvalidObjectException("Deserialization via serialization delegate");
}
void writeExternal(DataOutput out) throws IOException {
out.writeLong(seconds);
out.writeInt(nanos);
}
private static class DurationUnits {
static final List<TemporalUnit> UNITS =
Collections.unmodifiableList(Arrays.<TemporalUnit>asList(SECONDS, NANOS));
}
}