/// <summary>
/// Evaluate the function using the arguments passed.
/// </summary>
/// <param name="args">
/// Result from the expressions evaluation. </param>
/// <param name="sc">
/// Result of static context operation. </param>
/// <exception cref="DynamicError">
/// Dynamic error. </exception>
/// <returns> Result of the fn:dateTime operation. </returns>
public static ResultSequence dateTime(ICollection args, StaticContext sc)
{
ICollection cargs = Function.convert_arguments(args, expected_args());
// get args
IEnumerator argiter = cargs.GetEnumerator();
argiter.MoveNext();
ResultSequence arg1 = (ResultSequence)argiter.Current;
argiter.MoveNext();
ResultSequence arg2 = (ResultSequence)argiter.Current;
// if either of the parameter is an empty sequence, the result
// is an empty sequence
if (arg1 == null || arg2 == null || arg1.empty() || arg2.empty())
{
return(ResultBuffer.EMPTY);
}
XSDate param1 = (XSDate)arg1.first();
XSTime param2 = (XSTime)arg2.first();
Calendar cal = Calendar.getInstance();
cal.set(param1.year(), param1.month() - 1, param1.day());
cal.set(Calendar.HOUR_OF_DAY, param2.hour());
cal.set(Calendar.MINUTE, param2.minute());
cal.set(Calendar.SECOND, (int)Math.Floor(param2.second()));
cal.set(Calendar.MILLISECOND, 0);
XSDuration dateTimeZone = param1.tz();
XSDuration timeTimeZone = param2.tz();
if ((dateTimeZone != null && timeTimeZone != null) && !dateTimeZone.StringValue.Equals(timeTimeZone.StringValue))
{
// it's an error, if the arguments have different timezones
throw DynamicError.inconsistentTimeZone();
}
else if (dateTimeZone == null && timeTimeZone != null)
{
return(new XSDateTime(cal, timeTimeZone));
}
else if (dateTimeZone != null && timeTimeZone == null)
{
return(new XSDateTime(cal, dateTimeZone));
}
else if ((dateTimeZone != null && timeTimeZone != null) && dateTimeZone.StringValue.Equals(timeTimeZone.StringValue))
{
return(new XSDateTime(cal, dateTimeZone));
}
else
{
return(new XSDateTime(cal, null));
}
}