Java WeekFields.weekOfMonth方法代码示例

import java.time.temporal.WeekFields; //导入方法依赖的package包/类
@Test(dataProvider="weekFields")
public void test_withDayOfWeek(DayOfWeek firstDayOfWeek, int minDays) {
    LocalDate day = LocalDate.of(2012, 12, 15);  // Safely in the middle of a month
    WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
    TemporalField dowField = week.dayOfWeek();
    TemporalField womField = week.weekOfMonth();
    TemporalField woyField = week.weekOfYear();

    int wom = day.get(womField);
    int woy = day.get(woyField);
    for (int dow = 1; dow <= 7; dow++) {
        LocalDate result = day.with(dowField, dow);
        assertEquals(result.get(dowField), dow, String.format("Incorrect new Day of week: %s", result));
        assertEquals(result.get(womField), wom, "Week of Month should not change");
        assertEquals(result.get(woyField), woy, "Week of Year should not change");
    }
}
 

import java.time.temporal.WeekFields; //导入方法依赖的package包/类
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWom(DayOfWeek firstDayOfWeek, int minDays) {
    LocalDate date = LocalDate.of(2012, 12, 15);
    WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
    TemporalField womField = week.weekOfMonth();

    for (int i = 1; i <= 60; i++) {
        DateTimeFormatter f = new DateTimeFormatterBuilder()
                .appendValue(YEAR).appendLiteral(':')
                .appendValue(MONTH_OF_YEAR).appendLiteral(':')
                .appendValue(womField).appendLiteral(':')
                .appendValue(DAY_OF_WEEK).toFormatter().withResolverStyle(SMART);
        String str = date.getYear() + ":" + date.getMonthValue() + ":" +
                date.get(womField) + ":" + date.get(DAY_OF_WEEK);
        LocalDate parsed = LocalDate.parse(str, f);
        assertEquals(parsed, date, " ::" + str + "::" + i);

        date = date.plusDays(1);
    }
}
 

import java.time.temporal.WeekFields; //导入方法依赖的package包/类
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWom_lenient(DayOfWeek firstDayOfWeek, int minDays) {
    LocalDate date = LocalDate.of(2012, 12, 15);
    WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
    TemporalField womField = week.weekOfMonth();

    for (int i = 1; i <= 60; i++) {
        DateTimeFormatter f = new DateTimeFormatterBuilder()
                .appendValue(YEAR).appendLiteral(':')
                .appendValue(MONTH_OF_YEAR).appendLiteral(':')
                .appendValue(womField).appendLiteral(':')
                .appendValue(DAY_OF_WEEK).toFormatter().withResolverStyle(LENIENT);
        int wom = date.get(womField);
        int dow = date.get(DAY_OF_WEEK);
        for (int j = wom - 10; j < wom + 10; j++) {
            String str = date.getYear() + ":" + date.getMonthValue() + ":" + j + ":" + dow;
            LocalDate parsed = LocalDate.parse(str, f);
            assertEquals(parsed, date.plusWeeks(j - wom), " ::" + str + ": :" + i + "::" + j);
        }

        date = date.plusDays(1);
    }
}
 

import java.time.temporal.WeekFields; //导入方法依赖的package包/类
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWom_strict(DayOfWeek firstDayOfWeek, int minDays) {
    WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
    TemporalField womField = week.weekOfMonth();
    DateTimeFormatter f = new DateTimeFormatterBuilder()
            .appendValue(YEAR).appendLiteral(':')
            .appendValue(MONTH_OF_YEAR).appendLiteral(':')
            .appendValue(womField).appendLiteral(':')
            .appendValue(DAY_OF_WEEK).toFormatter().withResolverStyle(STRICT);
    String str = "2012:1:0:1";
    try {
        LocalDate date = LocalDate.parse(str, f);
        assertEquals(date.getYear(), 2012);
        assertEquals(date.getMonthValue(), 1);
        assertEquals(date.get(womField), 0);
        assertEquals(date.get(DAY_OF_WEEK), 1);
    } catch (DateTimeException ex) {
        // expected
    }
}
 

import java.time.temporal.WeekFields; //导入方法依赖的package包/类
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWomDow(DayOfWeek firstDayOfWeek, int minDays) {
    LocalDate date = LocalDate.of(2012, 12, 15);
    WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
    TemporalField dowField = week.dayOfWeek();
    TemporalField womField = week.weekOfMonth();

    for (int i = 1; i <= 15; i++) {
        DateTimeFormatter f = new DateTimeFormatterBuilder()
                .appendValue(YEAR).appendLiteral(':')
                .appendValue(MONTH_OF_YEAR).appendLiteral(':')
                .appendValue(womField).appendLiteral(':')
                .appendValue(dowField).toFormatter();
        String str = date.getYear() + ":" + date.getMonthValue() + ":" +
                date.get(womField) + ":" + date.get(dowField);
        LocalDate parsed = LocalDate.parse(str, f);
        assertEquals(parsed, date, " :: " + str + " " + i);

        date = date.plusDays(1);
    }
}
 

import java.time.temporal.WeekFields; //导入方法依赖的package包/类
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWomDow_lenient(DayOfWeek firstDayOfWeek, int minDays) {
    LocalDate date = LocalDate.of(2012, 12, 15);
    WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
    TemporalField dowField = week.dayOfWeek();
    TemporalField womField = week.weekOfMonth();

    for (int i = 1; i <= 60; i++) {
        DateTimeFormatter f = new DateTimeFormatterBuilder()
                .appendValue(YEAR).appendLiteral(':')
                .appendValue(MONTH_OF_YEAR).appendLiteral(':')
                .appendValue(womField).appendLiteral(':')
                .appendValue(dowField).toFormatter().withResolverStyle(LENIENT);
        int wom = date.get(womField);
        int dow = date.get(dowField);
        for (int j = wom - 10; j < wom + 10; j++) {
            String str = date.getYear() + ":" + date.getMonthValue() + ":" + j + ":" + dow;
            LocalDate parsed = LocalDate.parse(str, f);
            assertEquals(parsed, date.plusWeeks(j - wom), " ::" + str + ": :" + i + "::" + j);
        }

        date = date.plusDays(1);
    }
}
 

import java.time.temporal.WeekFields; //导入方法依赖的package包/类
/**
 * 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);
}
 

import java.time.temporal.WeekFields; //导入方法依赖的package包/类
@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 'c' :
        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);
    }
}
 

import java.time.temporal.WeekFields; //导入方法依赖的package包/类
@Test(dataProvider="weekFields")
public void test_weekOfMonthField(DayOfWeek firstDayOfWeek, int minDays) {
    LocalDate day = LocalDate.of(2012, 12, 31);  // Known to be ISO Monday
    WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
    TemporalField dowField = week.dayOfWeek();
    TemporalField womField = week.weekOfMonth();

    for (int i = 1; i <= 15; i++) {
        int actualDOW = day.get(dowField);
        int actualWOM = day.get(womField);

        // Verify that the combination of day of week and week of month can be used
        // to reconstruct the same date.
        LocalDate day1 = day.withDayOfMonth(1);
        int offset = - (day1.get(dowField) - 1);

        int week1 = day1.get(womField);
        if (week1 == 0) {
            // week of the 1st is partial; start with first full week
            offset += 7;
        }

        offset += actualDOW - 1;
        offset += (actualWOM - 1) * 7;
        LocalDate result = day1.plusDays(offset);

        assertEquals(result, day, "Incorrect dayOfWeek or weekOfMonth: "
                + String.format("%s, ISO Dow: %s, offset: %s, actualDOW: %s, actualWOM: %s, expected: %s, result: %s%n",
                week, day.getDayOfWeek(), offset, actualDOW, actualWOM, day, result));
        day = day.plusDays(1);
    }
}
 

import java.time.temporal.WeekFields; //导入方法依赖的package包/类
@Test(dataProvider="weekFields")
public void test_fieldRanges(DayOfWeek firstDayOfWeek, int minDays) {
    WeekFields weekDef = WeekFields.of(firstDayOfWeek, minDays);
    TemporalField womField = weekDef.weekOfMonth();
    TemporalField woyField = weekDef.weekOfYear();

    LocalDate day = LocalDate.of(2012, 11, 30);
    LocalDate endDay = LocalDate.of(2013, 1, 2);
    while (day.isBefore(endDay)) {
        LocalDate last = day.with(DAY_OF_MONTH, day.lengthOfMonth());
        int lastWOM = last.get(womField);
        LocalDate first = day.with(DAY_OF_MONTH, 1);
        int firstWOM = first.get(womField);
        ValueRange rangeWOM = day.range(womField);
        assertEquals(rangeWOM.getMinimum(), firstWOM,
                "Range min should be same as WeekOfMonth for first day of month: "
                + first + ", " + weekDef);
        assertEquals(rangeWOM.getMaximum(), lastWOM,
                "Range max should be same as WeekOfMonth for last day of month: "
                + last + ", " + weekDef);

        last = day.with(DAY_OF_YEAR, day.lengthOfYear());
        int lastWOY = last.get(woyField);
        first = day.with(DAY_OF_YEAR, 1);
        int firstWOY = first.get(woyField);
        ValueRange rangeWOY = day.range(woyField);
        assertEquals(rangeWOY.getMinimum(), firstWOY,
                "Range min should be same as WeekOfYear for first day of Year: "
                + day + ", " + weekDef);
        assertEquals(rangeWOY.getMaximum(), lastWOY,
                "Range max should be same as WeekOfYear for last day of Year: "
                + day + ", " + weekDef);

        day = day.plusDays(1);
    }
}
 

import java.time.temporal.WeekFields; //导入方法依赖的package包/类
@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);
    }
}
 

import java.time.temporal.WeekFields; //导入方法依赖的package包/类
/**
 * 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,
                        this.subsequentWidth);
            } else {
                return new NumberPrinterParser(field, count, 19,
                        (count < 4) ? SignStyle.NORMAL : SignStyle.EXCEEDS_PAD,
                        this.subsequentWidth);
            }
        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, minWidth, maxWidth, SignStyle.NOT_NEGATIVE,
            this.subsequentWidth);
}