Java Code Examples for org.apache.jena.graph.NodeFactory#createURI()

private void addNamedGraph(Binding binding, Context context, DatasetGraph dsg, Expr sourceExpr) {
	String sourceURI = evalSourceURI(binding, context, sourceExpr);
	final String absURI = baseURI(sourceURI, baseURI);
	Dataset dataset = ContextUtils.getDataset(context);
	Node n = NodeFactory.createURI(absURI);
	Graph g = dsg.getGraph(n);
	if (g == null) {
		g = GraphFactory.createJenaDefaultGraph();
		dsg.addGraph(n, g);
	}
	// default: check the dataset
	if (dataset.containsNamedModel(absURI)) {
		Graph dg = dataset.getNamedModel(absURI).getGraph();
		GraphUtil.addInto(g, dg);
		return;
	}
	// fallback: load as RDF graph
	StreamRDF dest = StreamRDFLib.graph(g);
	ContextUtils.loadGraph(context, sourceURI, absURI, dest);
}
 

public static Set<ConjunctiveQuery> getMembershipQuery(OWLOntology ont) {
	Set<ConjunctiveQuery> ret = new HashSet<ConjunctiveQuery>();
	for (OWLClass owlclass: ont.getClassesInSignature(true)) {
		ElementTriplesBlock p = new ElementTriplesBlock();
		String x = "x";
		Node sub = NodeFactory.createVariable(x);
		Node pred = NodeFactory.createURI(RDFConstants.RDF_TYPE);
		Node obj = NodeFactory.createURI(owlclass.getIRI().toString());
		Triple qt = new Triple(sub, pred, obj);
		p.getPattern().add(qt);
		ConjunctiveQuery cq = new ConjunctiveQuery();
		cq.setQueryPattern(p);
		cq.addResultVar(x);
		cq.setDistinct(true);
		ret.add(cq);
	}
	return ret;
}
 

@Override
public List<Node> getResultURIs() {
	List<Node> list = new ArrayList<Node>();
	if (describeQuery != null) {
		List<BinaryUnion<Variable, IRI>> binaryUnions = describeQuery
				.getResources();
		if (binaryUnions != null) {
			for (BinaryUnion<Variable, IRI> binaryUnion : binaryUnions) {
				if (binaryUnion.getSecond() != null) {
					String v = binaryUnion.getSecond().toString();
					Node e = NodeFactory.createURI(v);
					list.add(e);
				}
			}
		}
	}
	return list;
}
 

@Test
public void withBaseIRIandPrefixMap() {
	final Node u = NodeFactory.createURI("http://example.com/i");
	final Node n = new Node_Triple(new Triple(u, u, u));
	final String result = serialize( n, u, u, "http://example.com/", getPrefixMapForTests() );
	assertEquals("<<ex:i ex:i ex:i>> ex:i ex:i .\n", result);
}
 

@Test
public void triple() {
	final Node u = NodeFactory.createURI("http://example.com");
	final Node n = new Node_Triple(new Triple(u, u, u));
	final String s = serialize(n);
	assertEquals("<<<http://example.com> <http://example.com> <http://example.com>>>", s);
}
 

private void addNamedGraph(Binding binding, Context context, DatasetGraph dsg, SPARQLExtQuery generate, Expr name) {
	String sourceURI = evalSourceURI(binding, context, name);
	final String absURI = baseURI(sourceURI, baseURI);
	Node n = NodeFactory.createURI(absURI);
	Graph g = dsg.getGraph(n);
	if (g == null) {
		g = GraphFactory.createJenaDefaultGraph();
		dsg.addGraph(n, g);
	}
	loadGraph(binding, context, generate, g);
}
 

@Test
public void triple() {
	final Node u = NodeFactory.createURI("http://example.com");
	final Node n = new Node_Triple(new Triple(u, u, u));
	final String s = serialize(n);
	assertEquals("<<<http://example.com> <http://example.com> <http://example.com>>>", s);
}
 

private Node convert(AResource r) {
  if (!r.isAnonymous()) {
    // URI.
    String uriStr = r.getURI();
    if (errorForSpaceInURI) {
      // Special check for spaces in a URI.
      // Convert to an error like TokernizerText.
      if (uriStr.contains(" ")) {
        int i = uriStr.indexOf(' ');
        String s = uriStr.substring(0, i);
        String msg = String.format("Bad character in IRI (space): <%s[space]...>", s);
        int line = arp.getLocator().getLineNumber();
        int col = arp.getLocator().getColumnNumber();
        riotErrorHandler.error(msg, line, col);// NOPMD
        throw new RiotParseException(msg, line, col);
      }
    }
    return NodeFactory.createURI(uriStr);
  }

  // String id = r.getAnonymousID();
  Node rr = (Node) r.getUserData();
  if (rr == null) {
    rr = NodeFactory.createBlankNode();
    r.setUserData(rr);
  }
  return rr;
}
 

private List<Map<String, Node>> process(SolrDocumentList solrResults) {
	List<Map<String, Node>> records = new ArrayList<>() ;

	for ( SolrDocument sd : solrResults ) {
		Map<String, Node> record = new HashMap<>() ;
		String uriStr = (String)sd.getFieldValue(docDef.getEntityField()) ;
		Node entity = NodeFactory.createURI(uriStr) ;
		record.put(docDef.getEntityField(), entity) ;

		for ( String f : docDef.fields() ) {
			// log.info("Field: "+f) ;
			Object obj = sd.getFieldValue(f) ;
			// log.info("Value: "+obj) ;
			if ( obj == null )
				continue ;
			// Multivalued -> array.
			// Null means "not stored" or "not present"
			if ( obj instanceof List<? > ) {
				@SuppressWarnings("unchecked")
				List<String> vals = (List<String>)obj ;
				continue ;
			}

			String v = (String)obj ;
			Node n = entryToNode(v) ;
			record.put(f, n) ;
		}

		// log.info("Entity: "+uriStr) ;
		records.add(record) ;
	}
	return records ;
}
 

@Test
public void nested1() {
	final MyTextOutput o = new MyTextOutput( getPrefixMappingForTests() );
	
	final Node u = NodeFactory.createURI("http://example.com/i");
	final Node n1 = new Node_Triple(new Triple(u, u, u));
	final Node n2 = new Node_Triple(new Triple(n1, u, u));
	final QuerySolution s = createQuerySolution( "?t", n2 );		
	final String result = o.get(s, "?t");

	assertEquals("<< ex:i ex:i ex:i >> ex:i ex:i ", result);
}
 

@Test
public void neitherBaseIRInotPrefixMap() {
	final Node u = NodeFactory.createURI("http://example.com/i");
	final Node n = new Node_Triple(new Triple(u, u, u));
	final String result = serialize( n, u, u, null, null );
	assertEquals("<<<http://example.com/i> <http://example.com/i> <http://example.com/i>>> <http://example.com/i> <http://example.com/i> .\n", result);
}
 

@Test
public void createWithoutNestedTP()
{
	final Node u = NodeFactory.createURI("http://example.com/i");
	final Triple tp = new Triple( u, u, u );
	final QueryIterator input = new QueryIterNullIterator(null);

	final QueryIterator it = QueryIterTripleStarPattern.create(input, tp, null);
	assertTrue( it instanceof QueryIterTriplePattern );
	it.close();
}
 

@Test
public void nestedTripleO() {
	final Node u = NodeFactory.createURI("http://example.com");
	final Node n1 = new Node_Triple(new Triple(u, u, u));
	final Node n2 = new Node_Triple(new Triple(u, u, n1));
	final String s = serialize(n2);
	assertEquals("<<<http://example.com> <http://example.com> <<<http://example.com> <http://example.com> <http://example.com>>>>>", s);
}
 

@Test
public void nested2() {
	final MyTextOutput o = new MyTextOutput( getPrefixMappingForTests() );
	
	final Node u = NodeFactory.createURI("http://example.com/i");
	final Node n1 = new Node_Triple(new Triple(u, u, u));
	final Node n2 = new Node_Triple(new Triple(u, u, n1));
	final QuerySolution s = createQuerySolution( "?t", n2 );		
	final String result = o.get(s, "?t");

	assertEquals("ex:i ex:i << ex:i ex:i ex:i >> ", result);
}
 

public JSNamedNode namedNode(String value) {
	Node node = NodeFactory.createURI(value);
	return new JSNamedNode(node);
}
 

public String getResult( MyTextOutput o ) {
	final Node u = NodeFactory.createURI("http://example.com/i");
	final Node n = new Node_Triple(new Triple(u, u, u));
	final QuerySolution s = createQuerySolution( "?t", n );		
	return o.get(s, "?t");
}
 

static protected Node $o()  { return NodeFactory.createURI("http://example.com/o"); } 

static protected Node $x1() { return NodeFactory.createURI("http://example.com/x1"); } 

static protected Node $x2() { return NodeFactory.createURI("http://example.com/x2"); } 

static protected Node $s()  { return NodeFactory.createURI("http://example.com/s"); }