src/share/classes/java/time/chrono/MinguoDate.java
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@@ -70,16 +70,17 @@
import java.time.LocalDate;
import java.time.LocalTime;
import java.time.Period;
import java.time.ZoneId;
import java.time.temporal.ChronoField;
-import java.time.temporal.TemporalQuery;
import java.time.temporal.TemporalAccessor;
import java.time.temporal.TemporalAdjuster;
import java.time.temporal.TemporalAmount;
import java.time.temporal.TemporalField;
+import java.time.temporal.TemporalQuery;
import java.time.temporal.TemporalUnit;
+import java.time.temporal.UnsupportedTemporalTypeException;
import java.time.temporal.ValueRange;
import java.util.Objects;
/**
* A date in the Minguo calendar system.
@@ -203,20 +204,50 @@
Objects.requireNonNull(isoDate, "isoDate");
this.isoDate = isoDate;
}
//-----------------------------------------------------------------------
+ /**
+ * Gets the chronology of this date, which is the Minguo calendar system.
+ * <p>
+ * The {@code Chronology} represents the calendar system in use.
+ * The era and other fields in {@link ChronoField} are defined by the chronology.
+ *
+ * @return the Minguo chronology, not null
+ */
@Override
public MinguoChronology getChronology() {
return MinguoChronology.INSTANCE;
}
+ /**
+ * Gets the era applicable at this date.
+ * <p>
+ * The Minguo calendar system has two eras, 'ROC' and 'BEFORE_ROC',
+ * defined by {@link MinguoEra}.
+ *
+ * @return the era applicable at this date, not null
+ */
+ @Override
+ public MinguoEra getEra() {
+ return (getProlepticYear() >= 1 ? MinguoEra.ROC : MinguoEra.BEFORE_ROC);
+ }
+
+ /**
+ * Returns the length of the month represented by this date.
+ * <p>
+ * This returns the length of the month in days.
+ * Month lengths match those of the ISO calendar system.
+ *
+ * @return the length of the month in days
+ */
@Override
public int lengthOfMonth() {
return isoDate.lengthOfMonth();
}
+ //-----------------------------------------------------------------------
@Override
public ValueRange range(TemporalField field) {
if (field instanceof ChronoField) {
if (isSupported(field)) {
ChronoField f = (ChronoField) field;
@@ -231,19 +262,21 @@
return ValueRange.of(1, max);
}
}
return getChronology().range(f);
}
- throw new DateTimeException("Unsupported field: " + field.getName());
+ throw new UnsupportedTemporalTypeException("Unsupported field: " + field.getName());
}
return field.rangeRefinedBy(this);
}
@Override
public long getLong(TemporalField field) {
if (field instanceof ChronoField) {
switch ((ChronoField) field) {
+ case PROLEPTIC_MONTH:
+ return getProlepticMonth();
case YEAR_OF_ERA: {
int prolepticYear = getProlepticYear();
return (prolepticYear >= 1 ? prolepticYear : 1 - prolepticYear);
}
case YEAR:
@@ -254,10 +287,14 @@
return isoDate.getLong(field);
}
return field.getFrom(this);
}
+ private long getProlepticMonth() {
+ return getProlepticYear() * 12L + isoDate.getMonthValue() - 1;
+ }
+
private int getProlepticYear() {
return isoDate.getYear() - YEARS_DIFFERENCE;
}
//-----------------------------------------------------------------------
@@ -267,15 +304,17 @@
ChronoField f = (ChronoField) field;
if (getLong(f) == newValue) {
return this;
}
switch (f) {
+ case PROLEPTIC_MONTH:
+ getChronology().range(f).checkValidValue(newValue, f);
+ return plusMonths(newValue - getProlepticMonth());
case YEAR_OF_ERA:
case YEAR:
case ERA: {
- f.checkValidValue(newValue);
- int nvalue = (int) newValue;
+ int nvalue = getChronology().range(f).checkValidIntValue(newValue, f);
switch (f) {
case YEAR_OF_ERA:
return with(isoDate.withYear(getProlepticYear() >= 1 ? nvalue + YEARS_DIFFERENCE : (1 - nvalue) + YEARS_DIFFERENCE));
case YEAR:
return with(isoDate.withYear(nvalue + YEARS_DIFFERENCE));
@@ -284,41 +323,41 @@
}
}
}
return with(isoDate.with(field, newValue));
}
- return (MinguoDate) ChronoLocalDate.super.with(field, newValue);
+ return ChronoLocalDate.super.with(field, newValue);
}
/**
* {@inheritDoc}
* @throws DateTimeException {@inheritDoc}
* @throws ArithmeticException {@inheritDoc}
*/
@Override
public MinguoDate with(TemporalAdjuster adjuster) {
- return (MinguoDate)super.with(adjuster);
+ return super.with(adjuster);
}
/**
* {@inheritDoc}
* @throws DateTimeException {@inheritDoc}
* @throws ArithmeticException {@inheritDoc}
*/
@Override
public MinguoDate plus(TemporalAmount amount) {
- return (MinguoDate)super.plus(amount);
+ return super.plus(amount);
}
/**
* {@inheritDoc}
* @throws DateTimeException {@inheritDoc}
* @throws ArithmeticException {@inheritDoc}
*/
@Override
public MinguoDate minus(TemporalAmount amount) {
- return (MinguoDate)super.minus(amount);
+ return super.minus(amount);
}
//-----------------------------------------------------------------------
@Override
MinguoDate plusYears(long years) {
@@ -335,50 +374,50 @@
return with(isoDate.plusDays(days));
}
@Override
public MinguoDate plus(long amountToAdd, TemporalUnit unit) {
- return (MinguoDate)super.plus(amountToAdd, unit);
+ return super.plus(amountToAdd, unit);
}
@Override
public MinguoDate minus(long amountToAdd, TemporalUnit unit) {
- return (MinguoDate)super.minus(amountToAdd, unit);
+ return super.minus(amountToAdd, unit);
}
@Override
MinguoDate plusWeeks(long weeksToAdd) {
- return (MinguoDate)super.plusWeeks(weeksToAdd);
+ return super.plusWeeks(weeksToAdd);
}
@Override
MinguoDate minusYears(long yearsToSubtract) {
- return (MinguoDate)super.minusYears(yearsToSubtract);
+ return super.minusYears(yearsToSubtract);
}
@Override
MinguoDate minusMonths(long monthsToSubtract) {
- return (MinguoDate)super.minusMonths(monthsToSubtract);
+ return super.minusMonths(monthsToSubtract);
}
@Override
MinguoDate minusWeeks(long weeksToSubtract) {
- return (MinguoDate)super.minusWeeks(weeksToSubtract);
+ return super.minusWeeks(weeksToSubtract);
}
@Override
MinguoDate minusDays(long daysToSubtract) {
- return (MinguoDate)super.minusDays(daysToSubtract);
+ return super.minusDays(daysToSubtract);
}
private MinguoDate with(LocalDate newDate) {
return (newDate.equals(isoDate) ? this : new MinguoDate(newDate));
}
@Override // for javadoc and covariant return type
public final ChronoLocalDateTime<MinguoDate> atTime(LocalTime localTime) {
- return (ChronoLocalDateTime<MinguoDate>)super.atTime(localTime);
+ return super.atTime(localTime);
}
@Override
public Period periodUntil(ChronoLocalDate<?> endDate) {
return isoDate.periodUntil(endDate);
@@ -417,11 +456,11 @@
out.writeInt(get(YEAR));
out.writeByte(get(MONTH_OF_YEAR));
out.writeByte(get(DAY_OF_MONTH));
}
- static ChronoLocalDate readExternal(DataInput in) throws IOException {
+ static ChronoLocalDate<?> readExternal(DataInput in) throws IOException {
int year = in.readInt();
int month = in.readByte();
int dayOfMonth = in.readByte();
return MinguoChronology.INSTANCE.date(year, month, dayOfMonth);
}