private Strategy getStrategy()

in log4j-core/src/main/java/org/apache/logging/log4j/core/util/datetime/FastDateParser.java [558:609]
51 lines of code
26 McCabe index (conditional complexity)

    private Strategy getStrategy(final char f, final int width, final Calendar definingCalendar) {
        switch(f) {
        default:
            throw new IllegalArgumentException("Format '"+f+"' not supported");
        case 'D':
            return DAY_OF_YEAR_STRATEGY;
        case 'E':
            return getLocaleSpecificStrategy(Calendar.DAY_OF_WEEK, definingCalendar);
        case 'F':
            return DAY_OF_WEEK_IN_MONTH_STRATEGY;
        case 'G':
            return getLocaleSpecificStrategy(Calendar.ERA, definingCalendar);
        case 'H':  // Hour in day (0-23)
            return HOUR_OF_DAY_STRATEGY;
        case 'K':  // Hour in am/pm (0-11)
            return HOUR_STRATEGY;
        case 'M':
            return width >= 3 ? getLocaleSpecificStrategy(Calendar.MONTH, definingCalendar) : NUMBER_MONTH_STRATEGY;
        case 'S':
            return MILLISECOND_STRATEGY;
        case 'W':
            return WEEK_OF_MONTH_STRATEGY;
        case 'a':
            return getLocaleSpecificStrategy(Calendar.AM_PM, definingCalendar);
        case 'd':
            return DAY_OF_MONTH_STRATEGY;
        case 'h':  // Hour in am/pm (1-12), i.e. midday/midnight is 12, not 0
            return HOUR12_STRATEGY;
        case 'k':  // Hour in day (1-24), i.e. midnight is 24, not 0
            return HOUR24_OF_DAY_STRATEGY;
        case 'm':
            return MINUTE_STRATEGY;
        case 's':
            return SECOND_STRATEGY;
        case 'u':
            return DAY_OF_WEEK_STRATEGY;
        case 'w':
            return WEEK_OF_YEAR_STRATEGY;
        case 'y':
        case 'Y':
            return width > 2 ? LITERAL_YEAR_STRATEGY : ABBREVIATED_YEAR_STRATEGY;
        case 'X':
            return ISO8601TimeZoneStrategy.getStrategy(width);
        case 'Z':
            if (width==2) {
                return ISO8601TimeZoneStrategy.ISO_8601_3_STRATEGY;
            }
            //$FALL-THROUGH$
        case 'z':
            return getLocaleSpecificStrategy(Calendar.ZONE_OFFSET, definingCalendar);
        }
    }