java.time.temporal.ChronoField#DAY_OF_MONTH源码实例Demo

public static ChronoField getPrecision(TemporalAccessor temporalAccessor, String text) {
    if (temporalAccessor instanceof Year) {
        return ChronoField.YEAR;
    }

    if (temporalAccessor instanceof YearMonth) {
        return ChronoField.MONTH_OF_YEAR;
    }

    if (temporalAccessor instanceof LocalDate) {
        return ChronoField.DAY_OF_MONTH;
    }

    if (temporalAccessor instanceof LocalDateTime ||
            temporalAccessor instanceof ZonedDateTime ||
            temporalAccessor instanceof LocalTime) {
        if (text != null) {
            return getPrecision(text);
        }

        return (temporalAccessor instanceof ZonedDateTime) ?
                ChronoField.OFFSET_SECONDS : ChronoField.MICRO_OF_SECOND;
    }

    throw new IllegalArgumentException();
}
 

@DataProvider(name = "localeDisplayNames")
Object[][] data_localeDisplayNames() {
    return new Object[][] {
            {ChronoField.ERA},
            {ChronoField.YEAR},
            {ChronoField.MONTH_OF_YEAR},
            {ChronoField.DAY_OF_WEEK},
            // {ChronoField.ALIGNED_WEEK_OF_YEAR},
            {ChronoField.DAY_OF_MONTH},
            {ChronoField.AMPM_OF_DAY},
            {ChronoField.HOUR_OF_DAY},
            {ChronoField.MINUTE_OF_HOUR},
            {ChronoField.SECOND_OF_MINUTE},
    };
}
 

@DataProvider(name = "localeDisplayNames")
Object[][] data_localeDisplayNames() {
    return new Object[][] {
            {ChronoField.ERA},
            {ChronoField.YEAR},
            {ChronoField.MONTH_OF_YEAR},
            {ChronoField.DAY_OF_WEEK},
            // {ChronoField.ALIGNED_WEEK_OF_YEAR},
            {ChronoField.DAY_OF_MONTH},
            {ChronoField.AMPM_OF_DAY},
            {ChronoField.HOUR_OF_DAY},
            {ChronoField.MINUTE_OF_HOUR},
            {ChronoField.SECOND_OF_MINUTE},
    };
}
 

@DataProvider(name = "localeDisplayNames")
Object[][] data_localeDisplayNames() {
    return new Object[][] {
            {ChronoField.ERA},
            {ChronoField.YEAR},
            {ChronoField.MONTH_OF_YEAR},
            {ChronoField.DAY_OF_WEEK},
            // {ChronoField.ALIGNED_WEEK_OF_YEAR},
            {ChronoField.DAY_OF_MONTH},
            {ChronoField.AMPM_OF_DAY},
            {ChronoField.HOUR_OF_DAY},
            {ChronoField.MINUTE_OF_HOUR},
            {ChronoField.SECOND_OF_MINUTE},
    };
}
 

@DataProvider(name = "localeDisplayNames")
Object[][] data_localeDisplayNames() {
    return new Object[][] {
            {ChronoField.ERA},
            {ChronoField.YEAR},
            {ChronoField.MONTH_OF_YEAR},
            {ChronoField.DAY_OF_WEEK},
            // {ChronoField.ALIGNED_WEEK_OF_YEAR},
            {ChronoField.DAY_OF_MONTH},
            {ChronoField.AMPM_OF_DAY},
            {ChronoField.HOUR_OF_DAY},
            {ChronoField.MINUTE_OF_HOUR},
            {ChronoField.SECOND_OF_MINUTE},
    };
}
 

@DataProvider(name = "localeDisplayNames")
Object[][] data_localeDisplayNames() {
    return new Object[][] {
            {ChronoField.ERA},
            {ChronoField.YEAR},
            {ChronoField.MONTH_OF_YEAR},
            {ChronoField.DAY_OF_WEEK},
            // {ChronoField.ALIGNED_WEEK_OF_YEAR},
            {ChronoField.DAY_OF_MONTH},
            {ChronoField.AMPM_OF_DAY},
            {ChronoField.HOUR_OF_DAY},
            {ChronoField.MINUTE_OF_HOUR},
            {ChronoField.SECOND_OF_MINUTE},
    };
}
 

@DataProvider(name = "localeDisplayNames")
Object[][] data_localeDisplayNames() {
    return new Object[][] {
            {ChronoField.ERA},
            {ChronoField.YEAR},
            {ChronoField.MONTH_OF_YEAR},
            {ChronoField.DAY_OF_WEEK},
            // {ChronoField.ALIGNED_WEEK_OF_YEAR},
            {ChronoField.DAY_OF_MONTH},
            {ChronoField.AMPM_OF_DAY},
            {ChronoField.HOUR_OF_DAY},
            {ChronoField.MINUTE_OF_HOUR},
            {ChronoField.SECOND_OF_MINUTE},
    };
}
 

@DataProvider(name = "localeDisplayNames")
Object[][] data_localeDisplayNames() {
    return new Object[][] {
            {ChronoField.ERA},
            {ChronoField.YEAR},
            {ChronoField.MONTH_OF_YEAR},
            {ChronoField.DAY_OF_WEEK},
            // {ChronoField.ALIGNED_WEEK_OF_YEAR},
            {ChronoField.DAY_OF_MONTH},
            {ChronoField.AMPM_OF_DAY},
            {ChronoField.HOUR_OF_DAY},
            {ChronoField.MINUTE_OF_HOUR},
            {ChronoField.SECOND_OF_MINUTE},
    };
}
 

private LocalDate tryParse(String token, int currentYear, DateTimeFormatter fmt)
{
  try
  {
    // workaround for migrating jodatime 'withDefault...' see:
    // https://stackoverflow.com/a/49815584/6122976

    // init the defaults
    LocalDate defaults = LocalDate.of(currentYear, Month.JANUARY, 1);
    // parse string
    TemporalAccessor parsed = fmt.parse(token);
    // override defaults with parsed values
    ChronoField[] fieldsToOverride = { ChronoField.YEAR, ChronoField.MONTH_OF_YEAR, ChronoField.DAY_OF_MONTH };
    for (TemporalField fieldToOverride : fieldsToOverride)
    {
      if (parsed.isSupported(fieldToOverride))
      {
        defaults = defaults.with(fieldToOverride, parsed.getLong(fieldToOverride));
      }
    }

    return defaults;
  }
  catch (DateTimeParseException e)
  {
    return null;
  }
}
 

@DataProvider(name = "localeDisplayNames")
Object[][] data_localeDisplayNames() {
    return new Object[][] {
            {ChronoField.ERA},
            {ChronoField.YEAR},
            {ChronoField.MONTH_OF_YEAR},
            {ChronoField.DAY_OF_WEEK},
            // {ChronoField.ALIGNED_WEEK_OF_YEAR},
            {ChronoField.DAY_OF_MONTH},
            {ChronoField.AMPM_OF_DAY},
            {ChronoField.HOUR_OF_DAY},
            {ChronoField.MINUTE_OF_HOUR},
            {ChronoField.SECOND_OF_MINUTE},
    };
}
 

@DataProvider(name = "localeDisplayNames")
Object[][] data_localeDisplayNames() {
    return new Object[][] {
            {ChronoField.ERA},
            {ChronoField.YEAR},
            {ChronoField.MONTH_OF_YEAR},
            {ChronoField.DAY_OF_WEEK},
            // {ChronoField.ALIGNED_WEEK_OF_YEAR},
            {ChronoField.DAY_OF_MONTH},
            {ChronoField.AMPM_OF_DAY},
            {ChronoField.HOUR_OF_DAY},
            {ChronoField.MINUTE_OF_HOUR},
            {ChronoField.SECOND_OF_MINUTE},
    };
}
 

Object[][] data_localeDisplayNames() {
    return new Object[][] {
            {ChronoField.ERA},
            {ChronoField.YEAR},
            {ChronoField.MONTH_OF_YEAR},
            {ChronoField.DAY_OF_WEEK},
            // {ChronoField.ALIGNED_WEEK_OF_YEAR},
            {ChronoField.DAY_OF_MONTH},
            {ChronoField.AMPM_OF_DAY},
            {ChronoField.HOUR_OF_DAY},
            {ChronoField.MINUTE_OF_HOUR},
            {ChronoField.SECOND_OF_MINUTE},
    };
}
 

@Test
public void test_with_TemporalField_long_invalidField() {
    ChronoField[] invalidFields = new ChronoField[] {
            ChronoField.ALIGNED_DAY_OF_WEEK_IN_MONTH,
            ChronoField.ALIGNED_DAY_OF_WEEK_IN_YEAR,
            ChronoField.ALIGNED_WEEK_OF_MONTH,
            ChronoField.ALIGNED_WEEK_OF_YEAR,
            ChronoField.AMPM_OF_DAY,
            ChronoField.CLOCK_HOUR_OF_AMPM,
            ChronoField.CLOCK_HOUR_OF_DAY,
            ChronoField.DAY_OF_MONTH,
            ChronoField.DAY_OF_WEEK,
            ChronoField.DAY_OF_YEAR,
            ChronoField.EPOCH_DAY,
            ChronoField.HOUR_OF_AMPM,
            ChronoField.HOUR_OF_DAY,
            ChronoField.INSTANT_SECONDS,
            ChronoField.MICRO_OF_DAY,
            ChronoField.MICRO_OF_SECOND,
            ChronoField.MILLI_OF_DAY,
            ChronoField.MILLI_OF_SECOND,
            ChronoField.MINUTE_OF_DAY,
            ChronoField.MINUTE_OF_HOUR,
            ChronoField.NANO_OF_DAY,
            ChronoField.NANO_OF_SECOND,
            ChronoField.OFFSET_SECONDS,
            ChronoField.SECOND_OF_DAY,
            ChronoField.SECOND_OF_MINUTE,
    };

    YearMonth ym = YearMonth.of(2000, Month.JANUARY);
    for (ChronoField invalidField : invalidFields) {
        // Get a valid value to ensure we fail to due invalid field, not due to invalid value.
        long value = invalidField.range().getMinimum();
        try {
            ym.with(invalidField, value);
            fail("TemporalField.with() should not accept " + invalidField);
        } catch (UnsupportedTemporalTypeException expected) {
        }
    }

}
 

/**
 * Creates a matcher that matches when the examined date is on the first day of the month
 * <p/>
 * For example:
 *
 * <pre>
 * assertThat(myDate, isFirstDayOfMonth());
 * </pre>
 */
public static Matcher<ZonedDateTime> isFirstDayOfMonth() {
    return new IsMinimum<ZonedDateTime>(ChronoField.DAY_OF_MONTH,
            t -> t,
            new DatePartFormatter(),
            () -> "the date is the first day of the month");
}
 

/**
 * Creates a matcher that matches when the examined date is on the first day of the month
 * <p/>
 * For example:
 *
 * <pre>
 * assertThat(myDate, isFirstDayOfMonth());
 * </pre>
 */
public static Matcher<ZonedDateTime> isLastDayOfMonth() {
    return new IsMaximum<ZonedDateTime>(ChronoField.DAY_OF_MONTH,
            t -> t,
            new DatePartFormatter(),
            () -> "the date is the last day of the month");
}
 

/**
 * Creates a matcher that matches when the examined date is on the first day of the month
 * <p/>
 * For example:
 *
 * <pre>
 * assertThat(myDate, isFirstDayOfMonth());
 * </pre>
 */
public static Matcher<Date> isLastDayOfMonth() {
    return new IsMaximum<Date>(ChronoField.DAY_OF_MONTH, DateMatchers::dateToZoneDateTime,
            new DatePartFormatter(),
            () -> "the date is the last day of the month");
}
 

/**
 * Creates a matcher that matches when the examined date is on the first day of the month
 * <p/>
 * For example:
 *
 * <pre>
 * assertThat(myDate, isFirstDayOfMonth());
 * </pre>
 */
public static Matcher<LocalDateTime> isLastDayOfMonth() {
    return new IsMaximum<LocalDateTime>(ChronoField.DAY_OF_MONTH, t -> t,
            new DatePartFormatter(),
            () -> "the date is the last day of the month");
}
 

/**
 * Creates a matcher that matches when the examined date is on the first day of the month
 * <p/>
 * For example:
 *
 * <pre>
 * assertThat(myDate, isFirstDayOfMonth());
 * </pre>
 */
public static Matcher<LocalDate> isFirstDayOfMonth() {
    return new IsMinimum<LocalDate>(ChronoField.DAY_OF_MONTH, t -> t,
            new DatePartFormatter(),
            () -> "the date is the first day of the month");
}
 

/**
 * Creates a matcher that matches when the examined date is on the first day of the month
 * <p/>
 * For example:
 *
 * <pre>
 * assertThat(myDate, isFirstDayOfMonth());
 * </pre>
 */
public static Matcher<LocalDate> isLastDayOfMonth() {
    return new IsMaximum<LocalDate>(ChronoField.DAY_OF_MONTH, t -> t,
            new DatePartFormatter(),
            () -> "the date is the last day of the month");
}
 

/**
 * Creates a matcher that matches when the examined date is on the first day of the month
 * <p/>
 * For example:
 *
 * <pre>
 * assertThat(myDate, isFirstDayOfMonth());
 * </pre>
 */
public static Matcher<Date> isFirstDayOfMonth() {
    return new IsMinimum<Date>(ChronoField.DAY_OF_MONTH, DateMatchers::dateToZoneDateTime,
            new DatePartFormatter(),
            () -> "the date is the first day of the month");
}