下面列出了java.time.temporal.WeekFields#weekOfWeekBasedYear ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoWBYDow(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate date = LocalDate.of(2012, 12, 31);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField wowbyField = week.weekOfWeekBasedYear();
TemporalField yowbyField = week.weekBasedYear();
for (int i = 1; i <= 60; i++) {
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(yowbyField).appendLiteral(':')
.appendValue(wowbyField).appendLiteral(':')
.appendValue(dowField).toFormatter();
String str = date.get(yowbyField) + ":" + date.get(wowbyField) + ":" +
date.get(dowField);
LocalDate parsed = LocalDate.parse(str, f);
assertEquals(parsed, date, " :: " + str + " " + i);
date = date.plusDays(1);
}
}
@Test(dataProvider="weekFields")
public void test_rangeWeekOfWeekBasedYear(DayOfWeek firstDayOfWeek, int minDays) {
WeekFields weekFields = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = weekFields.dayOfWeek();
TemporalField wowByField = weekFields.weekOfWeekBasedYear();
LocalDate day1 = LocalDate.of(2012, 1, weekFields.getMinimalDaysInFirstWeek());
day1 = day1.with(wowByField, 1).with(dowField, 1);
LocalDate day2 = LocalDate.of(2013, 1, weekFields.getMinimalDaysInFirstWeek());
day2 = day2.with(wowByField, 1).with(dowField, 1);
int expectedWeeks = (int)ChronoUnit.DAYS.between(day1, day2) / 7;
ValueRange range = day1.range(wowByField);
assertEquals(range.getMaximum(), expectedWeeks, "Range incorrect");
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoWBY_lenient(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate date = LocalDate.of(2012, 12, 31);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField wowbyField = week.weekOfWeekBasedYear();
TemporalField yowbyField = week.weekBasedYear();
for (int i = 1; i <= 60; i++) {
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(yowbyField).appendLiteral(':')
.appendValue(wowbyField).appendLiteral(':')
.appendValue(DAY_OF_WEEK).toFormatter().withResolverStyle(LENIENT);
int wowby = date.get(wowbyField);
int dow = date.get(DAY_OF_WEEK);
for (int j = wowby - 60; j < wowby + 60; j++) {
String str = date.get(yowbyField) + ":" + j + ":" + dow;
LocalDate parsed = LocalDate.parse(str, f);
assertEquals(parsed, date.plusWeeks(j - wowby), " ::" + str + ": :" + i + "::" + j);
}
date = date.plusDays(1);
}
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoWBYDow(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate date = LocalDate.of(2012, 12, 31);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField wowbyField = week.weekOfWeekBasedYear();
TemporalField yowbyField = week.weekBasedYear();
for (int i = 1; i <= 60; i++) {
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(yowbyField).appendLiteral(':')
.appendValue(wowbyField).appendLiteral(':')
.appendValue(dowField).toFormatter();
String str = date.get(yowbyField) + ":" + date.get(wowbyField) + ":" +
date.get(dowField);
LocalDate parsed = LocalDate.parse(str, f);
assertEquals(parsed, date, " :: " + str + " " + i);
date = date.plusDays(1);
}
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoWBYDow_lenient(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate date = LocalDate.of(2012, 12, 31);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField wowbyField = week.weekOfWeekBasedYear();
TemporalField yowbyField = week.weekBasedYear();
for (int i = 1; i <= 60; i++) {
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(yowbyField).appendLiteral(':')
.appendValue(wowbyField).appendLiteral(':')
.appendValue(dowField).toFormatter().withResolverStyle(LENIENT);
int wowby = date.get(wowbyField);
int dow = date.get(dowField);
for (int j = wowby - 60; j < wowby + 60; j++) {
String str = date.get(yowbyField) + ":" + j + ":" + dow;
LocalDate parsed = LocalDate.parse(str, f);
assertEquals(parsed, date.plusWeeks(j - wowby), " ::" + str + ": :" + i + "::" + j);
}
date = date.plusDays(1);
}
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoWBYDow_lenient(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate date = LocalDate.of(2012, 12, 31);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField wowbyField = week.weekOfWeekBasedYear();
TemporalField yowbyField = week.weekBasedYear();
for (int i = 1; i <= 60; i++) {
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(yowbyField).appendLiteral(':')
.appendValue(wowbyField).appendLiteral(':')
.appendValue(dowField).toFormatter().withResolverStyle(LENIENT);
int wowby = date.get(wowbyField);
int dow = date.get(dowField);
for (int j = wowby - 60; j < wowby + 60; j++) {
String str = date.get(yowbyField) + ":" + j + ":" + dow;
LocalDate parsed = LocalDate.parse(str, f);
assertEquals(parsed, date.plusWeeks(j - wowby), " ::" + str + ": :" + i + "::" + j);
}
date = date.plusDays(1);
}
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoWBY_lenient(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate date = LocalDate.of(2012, 12, 31);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField wowbyField = week.weekOfWeekBasedYear();
TemporalField yowbyField = week.weekBasedYear();
for (int i = 1; i <= 60; i++) {
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(yowbyField).appendLiteral(':')
.appendValue(wowbyField).appendLiteral(':')
.appendValue(DAY_OF_WEEK).toFormatter().withResolverStyle(LENIENT);
int wowby = date.get(wowbyField);
int dow = date.get(DAY_OF_WEEK);
for (int j = wowby - 60; j < wowby + 60; j++) {
String str = date.get(yowbyField) + ":" + j + ":" + dow;
LocalDate parsed = LocalDate.parse(str, f);
assertEquals(parsed, date.plusWeeks(j - wowby), " ::" + str + ": :" + i + "::" + j);
}
date = date.plusDays(1);
}
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoWBY_strict(DayOfWeek firstDayOfWeek, int minDays) {
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField wowbyField = week.weekOfWeekBasedYear();
TemporalField yowbyField = week.weekBasedYear();
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(yowbyField).appendLiteral(':')
.appendValue(wowbyField).appendLiteral(':')
.appendValue(DAY_OF_WEEK).toFormatter().withResolverStyle(STRICT);
String str = "2012:0:1";
try {
LocalDate date = LocalDate.parse(str, f);
assertEquals(date.get(yowbyField), 2012);
assertEquals(date.get(wowbyField), 0);
assertEquals(date.get(DAY_OF_WEEK), 1);
} catch (DateTimeException ex) {
// expected
}
}
@Test(dataProvider="weekFields")
public void test_rangeWeekOfWeekBasedYear(DayOfWeek firstDayOfWeek, int minDays) {
WeekFields weekFields = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = weekFields.dayOfWeek();
TemporalField wowByField = weekFields.weekOfWeekBasedYear();
LocalDate day1 = LocalDate.of(2012, 1, weekFields.getMinimalDaysInFirstWeek());
day1 = day1.with(wowByField, 1).with(dowField, 1);
LocalDate day2 = LocalDate.of(2013, 1, weekFields.getMinimalDaysInFirstWeek());
day2 = day2.with(wowByField, 1).with(dowField, 1);
int expectedWeeks = (int)ChronoUnit.DAYS.between(day1, day2) / 7;
ValueRange range = day1.range(wowByField);
assertEquals(range.getMaximum(), expectedWeeks, "Range incorrect");
}
@Test(dataProvider="weekFields")
public void test_rangeWeekOfWeekBasedYear(DayOfWeek firstDayOfWeek, int minDays) {
WeekFields weekFields = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = weekFields.dayOfWeek();
TemporalField wowByField = weekFields.weekOfWeekBasedYear();
LocalDate day1 = LocalDate.of(2012, 1, weekFields.getMinimalDaysInFirstWeek());
day1 = day1.with(wowByField, 1).with(dowField, 1);
LocalDate day2 = LocalDate.of(2013, 1, weekFields.getMinimalDaysInFirstWeek());
day2 = day2.with(wowByField, 1).with(dowField, 1);
int expectedWeeks = (int)ChronoUnit.DAYS.between(day1, day2) / 7;
ValueRange range = day1.range(wowByField);
assertEquals(range.getMaximum(), expectedWeeks, "Range incorrect");
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoWBYDow(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate date = LocalDate.of(2012, 12, 31);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField wowbyField = week.weekOfWeekBasedYear();
TemporalField yowbyField = week.weekBasedYear();
for (int i = 1; i <= 60; i++) {
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(yowbyField).appendLiteral(':')
.appendValue(wowbyField).appendLiteral(':')
.appendValue(dowField).toFormatter();
String str = date.get(yowbyField) + ":" + date.get(wowbyField) + ":" +
date.get(dowField);
LocalDate parsed = LocalDate.parse(str, f);
assertEquals(parsed, date, " :: " + str + " " + i);
date = date.plusDays(1);
}
}
@Test(dataProvider="weekFields")
public void test_rangeWeekOfWeekBasedYear(DayOfWeek firstDayOfWeek, int minDays) {
WeekFields weekFields = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = weekFields.dayOfWeek();
TemporalField wowByField = weekFields.weekOfWeekBasedYear();
LocalDate day1 = LocalDate.of(2012, 1, weekFields.getMinimalDaysInFirstWeek());
day1 = day1.with(wowByField, 1).with(dowField, 1);
LocalDate day2 = LocalDate.of(2013, 1, weekFields.getMinimalDaysInFirstWeek());
day2 = day2.with(wowByField, 1).with(dowField, 1);
int expectedWeeks = (int)ChronoUnit.DAYS.between(day1, day2) / 7;
ValueRange range = day1.range(wowByField);
assertEquals(range.getMaximum(), expectedWeeks, "Range incorrect");
}
/**
* Gets the printerParser to use based on the field and the locale.
*
* @param locale the locale to use, not null
* @return the formatter, not null
* @throws IllegalArgumentException if the formatter cannot be found
*/
private DateTimePrinterParser printerParser(Locale locale) {
WeekFields weekDef = WeekFields.of(locale);
TemporalField field = null;
switch (chr) {
case 'Y':
field = weekDef.weekBasedYear();
if (count == 2) {
return new ReducedPrinterParser(field, 2, 2, 0, ReducedPrinterParser.BASE_DATE, 0);
} else {
return new NumberPrinterParser(field, count, 19,
(count < 4) ? SignStyle.NORMAL : SignStyle.EXCEEDS_PAD, -1);
}
case 'e':
case 'c':
field = weekDef.dayOfWeek();
break;
case 'w':
field = weekDef.weekOfWeekBasedYear();
break;
case 'W':
field = weekDef.weekOfMonth();
break;
default:
throw new IllegalStateException("unreachable");
}
return new NumberPrinterParser(field, (count == 2 ? 2 : 1), 2, SignStyle.NOT_NEGATIVE);
}
/**
* Verify that the date can be reconstructed from the DOW, WeekOfWeekBasedYear,
* and WeekBasedYear for every combination of start of week
* and minimal days in week.
* @param firstDayOfWeek the first day of the week
* @param minDays the minimum number of days in the week
*/
@Test(dataProvider="weekFields")
public void test_weekOfWeekBasedYearField(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate day = LocalDate.of(2012, 12, 31); // Known to be ISO Monday
WeekFields weekDef = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = weekDef.dayOfWeek();
TemporalField wowbyField = weekDef.weekOfWeekBasedYear();
TemporalField yowbyField = weekDef.weekBasedYear();
for (int i = 1; i <= 15; i++) {
int actualDOW = day.get(dowField);
int actualWOWBY = day.get(wowbyField);
int actualYOWBY = day.get(yowbyField);
// Verify that the combination of day of week and week of month can be used
// to reconstruct the same date.
LocalDate day1 = LocalDate.of(actualYOWBY, 1, 1);
DayOfWeek isoDOW = day1.getDayOfWeek();
int dow = (7 + isoDOW.getValue() - firstDayOfWeek.getValue()) % 7 + 1;
int weekStart = Math.floorMod(1 - dow, 7);
if (weekStart + 1 > weekDef.getMinimalDaysInFirstWeek()) {
// The previous week has the minimum days in the current month to be a 'week'
weekStart -= 7;
}
weekStart += actualDOW - 1;
weekStart += (actualWOWBY - 1) * 7;
LocalDate result = day1.plusDays(weekStart);
assertEquals(result, day, "Incorrect dayOfWeek or weekOfYear "
+ String.format("%s, ISO Dow: %s, weekStart: %s, actualDOW: %s, actualWOWBY: %s, YearOfWBY: %d, expected day: %s, result: %s%n",
weekDef, day.getDayOfWeek(), weekStart, actualDOW, actualWOWBY, actualYOWBY, day, result));
day = day.plusDays(1);
}
}
/**
* Gets the printerParser to use based on the field and the locale.
*
* @param locale the locale to use, not null
* @return the formatter, not null
* @throws IllegalArgumentException if the formatter cannot be found
*/
private DateTimePrinterParser printerParser(Locale locale) {
WeekFields weekDef = WeekFields.of(locale);
TemporalField field = null;
switch (chr) {
case 'Y':
field = weekDef.weekBasedYear();
if (count == 2) {
return new ReducedPrinterParser(field, 2, 2, 0, ReducedPrinterParser.BASE_DATE, 0);
} else {
return new NumberPrinterParser(field, count, 19,
(count < 4) ? SignStyle.NORMAL : SignStyle.EXCEEDS_PAD, -1);
}
case 'e':
case 'c':
field = weekDef.dayOfWeek();
break;
case 'w':
field = weekDef.weekOfWeekBasedYear();
break;
case 'W':
field = weekDef.weekOfMonth();
break;
default:
throw new IllegalStateException("unreachable");
}
return new NumberPrinterParser(field, (count == 2 ? 2 : 1), 2, SignStyle.NOT_NEGATIVE);
}
@Test(dataProvider="FieldPatterns")
public void test_parse_textField(String pattern, String text, int pos, int expectedPos, long expectedValue) {
WeekFields weekDef = WeekFields.of(locale);
TemporalField field = null;
switch(pattern.charAt(0)) {
case 'e' :
field = weekDef.dayOfWeek();
break;
case 'w':
field = weekDef.weekOfWeekBasedYear();
break;
case 'W':
field = weekDef.weekOfMonth();
break;
case 'Y':
field = weekDef.weekBasedYear();
break;
default:
throw new IllegalStateException("bad format letter from pattern");
}
ParsePosition ppos = new ParsePosition(pos);
DateTimeFormatterBuilder b
= new DateTimeFormatterBuilder().appendPattern(pattern);
DateTimeFormatter dtf = b.toFormatter(locale);
TemporalAccessor parsed = dtf.parseUnresolved(text, ppos);
if (ppos.getErrorIndex() != -1) {
assertEquals(ppos.getErrorIndex(), expectedPos);
} else {
assertEquals(ppos.getIndex(), expectedPos, "Incorrect ending parse position");
long value = parsed.getLong(field);
assertEquals(value, expectedValue, "Value incorrect for " + field);
}
}
@Test(dataProvider="FieldPatterns")
public void test_parse_textField(String pattern, String text, int pos, int expectedPos, long expectedValue) {
WeekFields weekDef = WeekFields.of(locale);
TemporalField field = null;
switch(pattern.charAt(0)) {
case 'e' :
field = weekDef.dayOfWeek();
break;
case 'w':
field = weekDef.weekOfWeekBasedYear();
break;
case 'W':
field = weekDef.weekOfMonth();
break;
case 'Y':
field = weekDef.weekBasedYear();
break;
default:
throw new IllegalStateException("bad format letter from pattern");
}
ParsePosition ppos = new ParsePosition(pos);
DateTimeFormatterBuilder b
= new DateTimeFormatterBuilder().appendPattern(pattern);
DateTimeFormatter dtf = b.toFormatter(locale);
TemporalAccessor parsed = dtf.parseUnresolved(text, ppos);
if (ppos.getErrorIndex() != -1) {
assertEquals(ppos.getErrorIndex(), expectedPos);
} else {
assertEquals(ppos.getIndex(), expectedPos, "Incorrect ending parse position");
long value = parsed.getLong(field);
assertEquals(value, expectedValue, "Value incorrect for " + field);
}
}
@Test(dataProvider="WeekBasedYearData")
public void test_weekBasedYears(WeekFields weekDef, int weekBasedYear,
int weekOfWeekBasedYear, int dayOfWeek, LocalDate date) {
TemporalField dowField = weekDef.dayOfWeek();
TemporalField wowbyField = weekDef.weekOfWeekBasedYear();
TemporalField yowbyField = weekDef.weekBasedYear();
assertEquals(date.get(dowField), dayOfWeek, "DayOfWeek mismatch");
assertEquals(date.get(wowbyField), weekOfWeekBasedYear, "Week of WeekBasedYear mismatch");
assertEquals(date.get(yowbyField), weekBasedYear, "Year of WeekBasedYear mismatch");
}
@Test(dataProvider="WeekBasedYearData")
public void test_weekBasedYears(WeekFields weekDef, int weekBasedYear,
int weekOfWeekBasedYear, int dayOfWeek, LocalDate date) {
TemporalField dowField = weekDef.dayOfWeek();
TemporalField wowbyField = weekDef.weekOfWeekBasedYear();
TemporalField yowbyField = weekDef.weekBasedYear();
assertEquals(date.get(dowField), dayOfWeek, "DayOfWeek mismatch");
assertEquals(date.get(wowbyField), weekOfWeekBasedYear, "Week of WeekBasedYear mismatch");
assertEquals(date.get(yowbyField), weekBasedYear, "Year of WeekBasedYear mismatch");
}
@Test(dataProvider="IsoWeekData")
public void test_WOWBY(LocalDate date, DayOfWeek dow, int week, int wby) {
WeekFields weekDef = WeekFields.ISO;
TemporalField dowField = weekDef.dayOfWeek();
TemporalField wowbyField = weekDef.weekOfWeekBasedYear();
TemporalField yowbyField = weekDef.weekBasedYear();
assertEquals(date.get(dowField), dow.getValue());
assertEquals(date.get(wowbyField), week);
assertEquals(date.get(yowbyField), wby);
}