Soprano::Node NG::CopyVisitor::vertexProxy(const Soprano::Node & node)
{
if(node.isBlank())
return node;
if(node.isLiteral())
return node;
Soprano::Node answer;
QHash< QUrl, QUrl >::const_iterator it =
d->proxyUrls->find(node.uri());
if(it == d->proxyUrls->end()) {
// Create new
// Create new url
// FIXME What label should be passed to the generateUniqueUri
answer = Soprano::Node(
d->targetManager->generateUniqueUri("unknown")
);
Q_ASSERT(!answer.uri().isEmpty());
// Add to table
//kDebug() << "Adding proxy to " << node.uri() << " : " << answer.uri();
d->proxyUrls->insert(node.uri(), answer.uri());
} else {
answer = Soprano::Node(it.value());
}
return answer;
}
void NG::DotVisitor::enter_edge(const Soprano::Node & currentNode, const Soprano::Node & propertyNode, const Soprano::Node & childNode)
{
static QString edgeTemplate = QString(" v%1 -> v%2 [label=\"%3\"]\n");
*d->stream << edgeTemplate.arg(
vertexID(currentNode),
vertexID(childNode),
propertyNode.uri().fragment()
);
}
QString getId( const Soprano::Node& node ) {
if ( node.isResource() ) {
return QString::fromLatin1( node.uri().toEncoded() );
}
else if ( node.isBlank() ) {
return bnodeIdPrefix() + node.toString();
}
else {
return QString();
}
}
QString NG::DotVisitor::vertexDescription(const Soprano::Node & node)
{
if(node.isBlank()) {
static QString blank("blank");
return blank;
} else if(node.isLiteral())
return node.toString().replace('\"', "'");
else { // Node is resource
return node.uri().toString();
}
}
bool Nepomuk::Types::PropertyPrivate::addProperty( const QUrl& property, const Soprano::Node& value )
{
// we avoid subclassing loops (as created for crappy inferencing) by checking for our own uri
if( value.isResource() &&
value.uri() != uri &&
property == Soprano::Vocabulary::RDFS::subPropertyOf() ) {
parents.append( value.uri() );
return true;
}
else if( property == Soprano::Vocabulary::RDFS::domain() ) {
domain = value.uri();
return true;
}
else if( property == Soprano::Vocabulary::RDFS::range() ) {
if ( value.toString().startsWith( Soprano::Vocabulary::XMLSchema::xsdNamespace().toString() ) ) {
literalRange = Literal( value.uri() );
}
else if ( value.uri() == Soprano::Vocabulary::RDFS::Literal()) {
literalRange = Literal( value.uri() );
}
else {
range = value.uri();
}
return true;
}
else if( property == Soprano::Vocabulary::NRL::minCardinality() ) {
minCardinality = value.literal().toInt();
return true;
}
else if( property == Soprano::Vocabulary::NRL::maxCardinality() ) {
maxCardinality = value.literal().toInt();
return true;
}
else if ( property == Soprano::Vocabulary::NRL::cardinality() ) {
cardinality = value.literal().toInt();
return true;
}
else if ( property == Soprano::Vocabulary::NRL::inverseProperty() ) {
inverse = value.uri();
return true;
}
return false;
}