public double evalAsDouble(Focus focus, EvalContext context) throws EvaluationException {
context.at(this);
XQItem v = args[0].evalAsOptItem(focus, context);
if (v == null) throw EmptyException.instance();
if (v instanceof MomentValue) {
MomentValue mv = (MomentValue) v;
return mv.getValue().getSecond();
}
try {
DateTime dt = DateTime.parseDateTime(v.getString());
return dt.getSecond();
} catch (DateTimeException e) {
context.error(Conversion.ERR_CAST, this, "cannot cast to xs:dateTime : " + e.getMessage());
return 0;
}
}
