Java Code Examples for java.time.Month#getValue()

/**
 * getStandaloneMonthName, This returns a "standalone version" month name for the specified
 * month, in the specified locale. In some languages, including Russian and Czech, the
 * standalone version of the month name is different from the version of the month name you
 * would use as part of a full date. (Is different from the formatting version).
 *
 * This tries to get the standalone version first. If no mapping is found for a standalone
 * version (Presumably because the supplied language has no standalone version), then this will
 * return the formatting version of the month name.
 */
private static String getStandaloneMonthName(Month month, Locale locale, boolean capitalize,
        boolean shortVersion) {
    // Attempt to get the standalone version of the month name.
    TextStyle style = (shortVersion) ? TextStyle.SHORT_STANDALONE : TextStyle.FULL_STANDALONE;
    String monthName = month.getDisplayName(style, locale);
    String monthNumber = "" + month.getValue();
    // If no mapping was found, then get the "formatting version" of the month name.
    if (monthName.equals(monthNumber)) {
        DateFormatSymbols dateSymbols = DateFormatSymbols.getInstance(locale);
        if (shortVersion) {
            monthName = dateSymbols.getShortMonths()[month.getValue() - 1];
        } else {
            monthName = dateSymbols.getMonths()[month.getValue() - 1];
        }
    }
    // If needed, capitalize the month name.
    if ((capitalize) && (monthName != null) && (monthName.length() > 0)) {
        monthName = monthName.substring(0, 1).toUpperCase(locale) + monthName.substring(1);
    }
    return monthName;
}
 

/**
 * getFormattingMonthName, This returns a "formatting version" month name for the specified
 * month, in the specified locale. In some languages, including Russian and Czech, the
 * standalone version of the month name is different from the version of the month name you
 * would use as part of a full date. (Is different from the formatting version).
 */
private static String getFormattingMonthName(Month month, Locale locale, boolean capitalize,
        boolean shortVersion) {
    // Get the "formatting version" of the month name.
    DateFormatSymbols dateSymbols = DateFormatSymbols.getInstance(locale);
    String monthName;
    if (shortVersion) {
        monthName = dateSymbols.getShortMonths()[month.getValue() - 1];
    } else {
        monthName = dateSymbols.getMonths()[month.getValue() - 1];
    }
    // If needed, capitalize the month name.
    if ((capitalize) && (monthName != null) && (monthName.length() > 0)) {
        monthName = monthName.substring(0, 1).toUpperCase(locale) + monthName.substring(1);
    }
    return monthName;
}
 

@SuppressWarnings({"unchecked"})
@Override
public <X> X unwrap(Month value, Class<X> type, WrapperOptions options) {
    if (value == null) {
        return null;
    }
    if (Number.class.isAssignableFrom(type)) {
        return (X) (Number) value.getValue();
    }
    throw unknownUnwrap(type);
}
 

private LocalDate calculateIMMMonth(final boolean requestNextIMM, final LocalDate startDate, final Month month) {
    int monthOffset;
    LocalDate date = startDate;
    switch (month) {
    case MARCH:
    case JUNE:
    case SEPTEMBER:
    case DECEMBER:
        final LocalDate immDate = calculate3rdWednesday(date);
        if (requestNextIMM && !date.isBefore(immDate)) {
            date = date.plusMonths(MONTHS_IN_QUARTER);
        } else if (!requestNextIMM && !date.isAfter(immDate)) {
            date = date.minusMonths(MONTHS_IN_QUARTER);
        }
        break;

    default:
        if (requestNextIMM) {
            monthOffset = (MONTH_IN_YEAR - month.getValue()) % MONTHS_IN_QUARTER;
            date = date.plusMonths(monthOffset);
        } else {
            monthOffset = month.getValue() % MONTHS_IN_QUARTER;
            date = date.minusMonths(monthOffset);
        }
        break;
    }
    return date;
}
 

public void setMonth(Month month) {
    this.month = month.getValue()-1;
}
 

@Override
public String toNonNullString(Month value) {
    return "" + value.getValue();
}
 

@Override
public Integer toNonNullValue(Month value) {
    return value.getValue();
}
 

@ParameterizedTest
@EnumSource(Month.class)
void getValueForAMonth_IsAlwaysBetweenOneAndTwelve(Month month) {
    int monthNumber = month.getValue();
    assertTrue(monthNumber >= 1 && monthNumber <= 12);
}
 

/**
 * Returns the {@link java.time.Month} that is {@code months} months after this month.
 *
 * @param self   a Month
 * @param months the number of months move forward
 * @return the Month
 * @since 2.5.0
 */
public static Month plus(final Month self, int months) {
    int monthsPerYear = Month.values().length;
    int val = ((self.getValue() + months - 1) % monthsPerYear) + 1;
    return Month.of(val > 0 ? val : monthsPerYear + val);
}