public static DateFormat getDateFormat()

in velocity-tools-generic/src/main/java/org/apache/velocity/tools/ConversionUtils.java [469:546]
74 lines of code
18 McCabe index (conditional complexity)

    public static DateFormat getDateFormat(int dateStyle, int timeStyle,
                                           Locale locale, TimeZone timezone)
    {
        try
        {
            DateFormat df;
            if (dateStyle < 0 && timeStyle < 0)
            {
                // no style was specified, use default instance
                df = DateFormat.getDateInstance();
            }
            else if (timeStyle < 0)
            {
                // only a date style was specified
                switch (dateStyle)
                {
                    case STYLE_ISO:
                    case STYLE_ISO_TZ: /* ignore TZ */
                    case STYLE_INTL:
                    case STYLE_INTL_TZ:  /* ignore TZ */
                        df = (DateFormat)isoDateFormat.clone();
                        break;
                    default:
                        df = DateFormat.getDateInstance(dateStyle, locale);
                        break;
                }
            }
            else if (dateStyle < 0)
            {
                // only a time style was specified
                switch (timeStyle)
                {
                    case STYLE_ISO:
                    case STYLE_INTL:
                        df = (DateFormat)isoTimeFormat.clone();
                        break;
                    case STYLE_ISO_TZ:
                        df = (DateFormat)isoTimeTzFormat.clone();
                        break;
                    case STYLE_INTL_TZ:
                        df = new TimeZoneIDSuffixFormat((DateFormat)intlTimeTzFormat_base.clone());
                        break;
                    default:
                        df = DateFormat.getTimeInstance(timeStyle, locale);
                        break;
                }
            }
            else
            {
                switch (dateStyle)
                {
                    case STYLE_ISO:
                        df = isoTimestampFormat;
                        break;
                    case STYLE_ISO_TZ:
                        df = (DateFormat)isoTimestampTzFormat.clone();
                        break;
                    case STYLE_INTL:
                        df = (DateFormat)intlTimestampFormat.clone();
                        break;
                    case STYLE_INTL_TZ:
                        df = new TimeZoneIDSuffixFormat((DateFormat)intlTimestampTzFormat_base.clone());
                        break;
                    default:
                        df = DateFormat.getDateTimeInstance(dateStyle, timeStyle, locale);
                        break;
                }
            }
            df.setTimeZone(timezone);
            return df;
        }
        catch (Exception suppressed)
        {
            LoggerFactory.getLogger(ConversionUtils.class).error("could not get date/time format", suppressed);
            // let it go...
            return null;
        }
    }