throws AlgebricksException {
final XSDatePointable datep = (XSDatePointable) XSDatePointable.FACTORY.createPointable();
final XSTimePointable timep = (XSTimePointable) XSTimePointable.FACTORY.createPointable();
final SequencePointable seqp = (SequencePointable) SequencePointable.FACTORY.createPointable();
final ArrayBackedValueStorage abvs = new ArrayBackedValueStorage();
final DataOutput dOut = abvs.getDataOutput();
return new AbstractTaggedValueArgumentScalarEvaluator(args) {
@Override
protected void evaluate(TaggedValuePointable[] args, IPointable result) throws SystemException {
TaggedValuePointable tvp1 = args[0];
if (tvp1.getTag() == ValueTag.SEQUENCE_TAG) {
tvp1.getValue(seqp);
if (seqp.getEntryCount() == 0) {
XDMConstants.setEmptySequence(result);
return;
}
}
if (tvp1.getTag() != ValueTag.XS_DATE_TAG) {
throw new SystemException(ErrorCode.FORG0006);
}
tvp1.getValue(datep);
TaggedValuePointable tvp2 = args[1];
if (tvp2.getTag() == ValueTag.SEQUENCE_TAG) {
tvp2.getValue(seqp);
if (seqp.getEntryCount() == 0) {
XDMConstants.setEmptySequence(result);
return;
}
}
if (tvp2.getTag() != ValueTag.XS_TIME_TAG) {
throw new SystemException(ErrorCode.FORG0006);
}
tvp2.getValue(timep);
// Set the timezone.
byte timezoneHour, timezoneMinute;
if (datep.getTimezoneHour() == DateTime.TIMEZONE_HOUR_NULL
&& datep.getTimezoneMinute() == DateTime.TIMEZONE_MINUTE_NULL
&& timep.getTimezoneHour() == DateTime.TIMEZONE_HOUR_NULL
&& timep.getTimezoneMinute() == DateTime.TIMEZONE_MINUTE_NULL) {
// both null.
timezoneHour = DateTime.TIMEZONE_HOUR_NULL;
timezoneMinute = DateTime.TIMEZONE_MINUTE_NULL;
} else if (datep.getTimezoneHour() == DateTime.TIMEZONE_HOUR_NULL
&& datep.getTimezoneMinute() == DateTime.TIMEZONE_MINUTE_NULL
&& timep.getTimezoneHour() != DateTime.TIMEZONE_HOUR_NULL
&& timep.getTimezoneMinute() != DateTime.TIMEZONE_MINUTE_NULL) {
// date is null.
timezoneHour = (byte) timep.getTimezoneHour();
timezoneMinute = (byte) timep.getTimezoneMinute();
} else if (datep.getTimezoneHour() != DateTime.TIMEZONE_HOUR_NULL
&& datep.getTimezoneMinute() != DateTime.TIMEZONE_MINUTE_NULL
&& timep.getTimezoneHour() == DateTime.TIMEZONE_HOUR_NULL
&& timep.getTimezoneMinute() == DateTime.TIMEZONE_MINUTE_NULL) {
// time is null.
timezoneHour = (byte) datep.getTimezoneHour();
timezoneMinute = (byte) datep.getTimezoneMinute();
} else if (datep.getTimezoneHour() == timep.getTimezoneHour()
&& datep.getTimezoneMinute() == timep.getTimezoneMinute()) {
// timezones are the same.
timezoneHour = (byte) datep.getTimezoneHour();
timezoneMinute = (byte) datep.getTimezoneMinute();
} else {
// Neither match.
throw new SystemException(ErrorCode.FORG0008);
}
try {
abvs.reset();
dOut.write(ValueTag.XS_DATETIME_TAG);
dOut.write(datep.getByteArray(), datep.getStartOffset(),
XSDatePointable.TYPE_TRAITS.getFixedLength() - 2);
dOut.write(timep.getByteArray(), timep.getStartOffset(),
XSTimePointable.TYPE_TRAITS.getFixedLength() - 2);
dOut.write(timezoneHour);
dOut.write(timezoneMinute);
result.set(abvs.getByteArray(), abvs.getStartOffset(),
XSDateTimePointable.TYPE_TRAITS.getFixedLength() + 1);
} catch (IOException e) {
throw new SystemException(ErrorCode.SYSE0001, e);