public Object toObject()

in tapestry-framework/src/org/apache/tapestry/valid/DateValidator.java [128:187]
36 lines of code
10 McCabe index (conditional complexity)

    public Object toObject(IFormComponent field, String value) throws ValidatorException
    {
        if (checkRequired(field, value))
            return null;

        DateFormat format = getEffectiveFormat();

        Date result;

        try
        {
            // DateFormat is not threadsafe, so guard access
            // to it.

            synchronized (format)
            {
                result = format.parse(value);
            }

            if (_calendar == null)
                _calendar = new GregorianCalendar();

            _calendar.setTime(result);

            // SimpleDateFormat allows two-digit dates to be
            // entered, i.e., 12/24/66 is Dec 24 0066 ... that's
            // probably not what is really wanted, so treat
            // it as an invalid date.

            if (_calendar.get(Calendar.YEAR) < 1000)
                result = null;

        }
        catch (ParseException ex)
        {
            // ParseException does not include a useful error message
            // about what's wrong.
            result = null;
        }

        if (result == null)
            throw new ValidatorException(
                buildInvalidDateFormatMessage(field),
                ValidationConstraint.DATE_FORMAT);

        // OK, check that the date is in range.

        if (_minimum != null && _minimum.compareTo(result) > 0)
            throw new ValidatorException(
                buildDateTooEarlyMessage(field, format.format(_minimum)),
                ValidationConstraint.TOO_SMALL);

        if (_maximum != null && _maximum.compareTo(result) < 0)
            throw new ValidatorException(
                buildDateTooLateMessage(field, format.format(_maximum)),
                ValidationConstraint.TOO_LARGE);

        return result;

    }