- * The Hijrah calendar system has two eras.
- * The date {@code 0001-01-01 (Hijrah)} is {@code 622-06-19 (ISO)}.
- *
{
-
- /**
- * The singleton instance for the era before the current one, 'Before Anno Hegirae',
- * which has the value 0.
- */
- BEFORE_AH,
- /**
- * The singleton instance for the current era, 'Anno Hegirae', which has the value 1.
- */
- AH;
-
- //-----------------------------------------------------------------------
- /**
- * Obtains an instance of {@code HijrahEra} from a value.
- *
- * The current era (from ISO date 622-06-19 onwards) has the value 1
- * The previous era has the value 0.
- *
- * @param hijrahEra the era to represent, from 0 to 1
- * @return the HijrahEra singleton, never null
- * @throws DateTimeException if the era is invalid
- */
- public static HijrahEra of(int hijrahEra) {
- switch (hijrahEra) {
- case 0:
- return BEFORE_AH;
- case 1:
- return AH;
- default:
- throw new DateTimeException("HijrahEra not valid");
- }
- }
-
- //-----------------------------------------------------------------------
- /**
- * Gets the era numeric value.
- *
- * The current era (from ISO date 622-06-19 onwards) has the value 1.
- * The previous era has the value 0.
- *
- * @return the era value, from 0 (BEFORE_AH) to 1 (AH)
- */
- @Override
- public int getValue() {
- return ordinal();
- }
-
- @Override
- public HijrahChrono getChrono() {
- return HijrahChrono.INSTANCE;
- }
-
- // JDK8 default methods:
- //-----------------------------------------------------------------------
- @Override
- public ChronoLocalDate date(int year, int month, int day) {
- return getChrono().date(this, year, month, day);
- }
-
- @Override
- public ChronoLocalDate dateYearDay(int year, int dayOfYear) {
- return getChrono().dateYearDay(this, year, dayOfYear);
- }
-
- //-----------------------------------------------------------------------
- @Override
- public boolean isSupported(TemporalField field) {
- if (field instanceof ChronoField) {
- return field == ERA;
- }
- return field != null && field.doIsSupported(this);
- }
-
- @Override
- public ValueRange range(TemporalField field) {
- if (field == ERA) {
- return field.range();
- } else if (field instanceof ChronoField) {
- throw new DateTimeException("Unsupported field: " + field.getName());
- }
- return field.doRange(this);
- }
-
- @Override
- public int get(TemporalField field) {
- if (field == ERA) {
- return getValue();
- }
- return range(field).checkValidIntValue(getLong(field), field);
- }
-
- @Override
- public long getLong(TemporalField field) {
- if (field == ERA) {
- return getValue();
- } else if (field instanceof ChronoField) {
- throw new DateTimeException("Unsupported field: " + field.getName());
- }
- return field.doGet(this);
- }
-
- //-------------------------------------------------------------------------
- @Override
- public Temporal adjustInto(Temporal temporal) {
- return temporal.with(ERA, getValue());
- }
-
- //-----------------------------------------------------------------------
- @Override
- public String getText(TextStyle style, Locale locale) {
- return new DateTimeFormatterBuilder().appendText(ERA, style).toFormatter(locale).print(this);
- }
-
- /**
- * Returns the proleptic year from this era and year of era.
- *
- * @param yearOfEra the year of Era
- * @return the computed prolepticYear
- */
- int prolepticYear(int yearOfEra) {
- return (this == HijrahEra.AH ? yearOfEra : 1 - yearOfEra);
- }
-
- //-----------------------------------------------------------------------
- private Object writeReplace() {
- return new Ser(Ser.HIJRAH_ERA_TYPE, this);
- }
-
- void writeExternal(DataOutput out) throws IOException {
- out.writeByte(this.getValue());
- }
-
- static HijrahEra readExternal(DataInput in) throws IOException {
- byte eraValue = in.readByte();
- return HijrahEra.of(eraValue);
- }
-
-}