ResourcePtr ModelMaker::readResource(Model& model, const QDomElement& el)
{
QString rdfns = RDFVocab::self()->namespaceURI();
QString about = QLatin1String("about");
QString resource = QLatin1String("resource");
QString descriptionStr = QLatin1String("Description");
ResourcePtr res;
ResourcePtr type = model.createResource(el.namespaceURI() + el.localName());
if (*type == *(RDFVocab::self()->seq()))
{
SequencePtr seq = model.createSequence(el.attribute(about));
res = seq;
}
else
{
res = model.createResource(el.attribute(about));
}
model.addStatement(res, RDFVocab::self()->type(), type);
QDomNodeList children = el.childNodes();
bool isSeq = res->isSequence();
for (uint i = 0; i < children.length(); ++i)
{
if (children.item(i).isElement())
{
QDomElement ce = children.item(i).toElement();
PropertyPtr pred = model.createProperty(ce.namespaceURI() + ce.localName());
if (ce.hasAttribute(resource)) // referenced Resource via (rdf:)resource
{
NodePtr obj = model.createResource(ce.attribute(resource));
if (isSeq && *pred == *(RDFVocab::self()->li()))
{
SequencePtr tseq = boost::static_pointer_cast<Sequence>(res);
tseq->append(obj);
}
else
model.addStatement(res, pred, obj);
}
else if (!ce.text().isEmpty() && ce.lastChildElement().isNull()) // Literal
{
NodePtr obj = model.createLiteral(ce.text());
if (isSeq && *pred == *(RDFVocab::self()->li()))
{
SequencePtr tseq = boost::static_pointer_cast<Sequence>(res);
tseq->append(obj);
}
else
model.addStatement(res, pred, obj);
}
else // embedded description
{
QDomElement re = ce.lastChildElement();
QString uri = re.attribute(about);
// read recursively
NodePtr obj = readResource(model, re);
if (isSeq && *pred == *(RDFVocab::self()->li()))
{
SequencePtr tseq = boost::static_pointer_cast<Sequence>(res);
tseq->append(obj);
}
else
model.addStatement(res, pred, obj);
}
//TODO: bag, reification (nice to have, but not important for basic RSS 1.0)
}
}
return res;
}
