private String formatDate()

in src/main/java/org/apache/sling/scripting/sightly/impl/engine/extension/FormatFilterExtension.java [222:253]

29 lines of code
7 McCabe index (conditional complexity)


    private String formatDate(String format, Date date, Locale locale, TimeZone timezone) {
        if (date == null) {
            return null;
        }
        try {
            DateTimeFormatter formatter;
            FormatStyle formattingStyle = getPredefinedFormattingStyleFromValue(format);
            if (formattingStyle != null) {
                formatter = DateTimeFormatter.ofLocalizedDate(formattingStyle);
                if (locale != null) {
                    formatter = formatter.withLocale(locale);
                }
            } else {
                // escape reserved characters, that are allowed according to the htl-tck
                format = format.replaceAll("([{}#])", "'$1'");
                // normalized text narrow form to full form to be compatible with java.text.SimpleDateFormat
                // for example EEEEE becomes EEEE
                format = format.replaceAll("([GMLQqEec])\\1{4}", "$1$1$1$1");
                if (locale != null) {
                    formatter = DateTimeFormatter.ofPattern(format, locale);
                } else {
                    formatter = DateTimeFormatter.ofPattern(format);
                }
            }
            return formatter.format(timezone != null ? date.toInstant().atZone(timezone.toZoneId()) : date.toInstant());
        } catch (Exception e) {
            String error = String.format(
                    "Error during formatting of date %s with format %s, locale %s and timezone %s",
                    date, format, locale, timezone);
            throw new SightlyException(error, e);
        }
    }