protected int getMaxInputLength()

in empire-db-jakarta-faces/src/main/java/org/apache/empire/jakarta/controls/TextInputControl.java [502:554]
46 lines of code
20 McCabe index (conditional complexity)

    protected int getMaxInputLength(InputInfo ii)
    {
        // check custom
        String maxlen = getFormatOption(ii, "maxlength:");
        if (StringUtils.isNotEmpty(maxlen))
        {
            int ml = ObjectUtils.getInteger(maxlen);
            if (ml > 0)
                return ml;
        }
        Column col = ii.getColumn();
        // cast to DBTableColumn 
        DataType type = col.getDataType();
        if (type == DataType.CHAR || type == DataType.VARCHAR)
            return (int) Math.round(col.getSize());
        if (type == DataType.AUTOINC || type == DataType.INTEGER)
            return 10;
        if (type == DataType.FLOAT)
            return 18;
        if (type == DataType.DECIMAL)
        { // check precision and scale
            double size = col.getSize();
            int prec = (int) Math.round(size);
            if (prec == 0)
                return 0;
            int len = prec;
            // scale
            int scale = ((int) (size * 10) - (prec * 10));
            if (scale > 0)
                len++; // Dezimaltrenner
            // thousand separator ?
            Object groupSep = col.getAttribute(Column.COLATTR_NUMBER_GROUPSEP);
            if (groupSep != null && ObjectUtils.getBoolean(groupSep))
                len += ((prec - scale - 1) / 3);
            // sign?
            Object minVal = col.getAttribute(Column.COLATTR_MINVALUE);
            if (minVal == null || ObjectUtils.getInteger(minVal) < 0)
                len++; // Vorzeichen
            // fertig
            return len;
        }
        if (type == DataType.BOOL)
            return 1;
        if (type == DataType.DATE)
            return 10;
        if (type == DataType.DATETIME || type == DataType.TIMESTAMP)
            return 16;
        if (type == DataType.CLOB)
            return 0; // unlimited (use 0x7FFFFFFF instead?)
        // undefined!
        log.info("No max-length available for data type {}.", type);
        return 0;
    }