com.hp.hpl.jena.rdf.model.Literal Java Examples
The following examples show how to use
com.hp.hpl.jena.rdf.model.Literal.
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Example #1
Source File: JenaSesameUtils.java From anno4j with Apache License 2.0 | 6 votes |
/** * Convert the given Jena Literal to a Sesame Literal * @param theLiteral the Jena Literal to convert * @return the Jena Literal as a Sesame Literal */ public static org.openrdf.model.Literal asSesameLiteral(Literal theLiteral) { if (theLiteral == null) { return null; } else if (theLiteral.getLanguage() != null && !theLiteral.getLanguage().equals("")) { return FACTORY.createLiteral(theLiteral.getLexicalForm(), theLiteral.getLanguage()); } else if (theLiteral.getDatatypeURI() != null) { return FACTORY.createLiteral(theLiteral.getLexicalForm(), FACTORY.createURI(theLiteral.getDatatypeURI())); } else { return FACTORY.createLiteral(theLiteral.getLexicalForm()); } }
Example #2
Source File: OntologyBean.java From LodView with MIT License | 6 votes |
private String getSingleValue(String preferredLanguage, Resource IRI, String prop, String defaultValue) { NodeIterator iter = model.listObjectsOfProperty(IRI, model.createProperty(prop)); String result = defaultValue; boolean betterTitleMatch = false; while (iter.hasNext()) { RDFNode node = iter.nextNode(); Literal l = node.asLiteral(); //System.out.println(IRI + " " + preferredLanguage + " --> " + l.getLanguage() + " --> " + l.getLexicalForm()); if (!betterTitleMatch && (result.equals(defaultValue) || l.getLanguage().equals("en") || l.getLanguage().equals(preferredLanguage))) { if (preferredLanguage.equals(l.getLanguage())) { betterTitleMatch = true; } result = l.getLexicalForm(); } } return result; }
Example #3
Source File: JenaSesameUtils.java From anno4j with Apache License 2.0 | 6 votes |
/** * Convert a Sesame Literal to a Jena Literal * @param theLiteral the Sesame literal * @return the sesame literal converted to Jena */ public static com.hp.hpl.jena.rdf.model.Literal asJenaLiteral(org.openrdf.model.Literal theLiteral) { if (theLiteral == null) { return null; } else if (theLiteral.getLanguage() != null) { return mInternalModel.createLiteral(theLiteral.getLabel(), theLiteral.getLanguage()); } else if (theLiteral.getDatatype() != null) { return mInternalModel.createTypedLiteral(theLiteral.getLabel(), theLiteral.getDatatype().toString()); } else { return mInternalModel.createLiteral(theLiteral.getLabel()); } }
Example #4
Source File: WP2RDFXMLWriter.java From GeoTriples with Apache License 2.0 | 6 votes |
protected void writePredicate(Statement stmt, final PrintWriter writer) { final Property predicate = stmt.getPredicate(); final RDFNode object = stmt.getObject(); writer.print(space + space + "<" + startElementTag(predicate.getNameSpace(), predicate.getLocalName())); if (object instanceof Resource) { writer.print(" "); writeResourceReference(((Resource) object), writer); writer.println("/>"); } else { writeLiteral((Literal) object, writer); writer.println("</" + endElementTag(predicate.getNameSpace(), predicate.getLocalName()) + ">"); } }
Example #5
Source File: WP2RDFXMLWriter.java From GeoTriples with Apache License 2.0 | 6 votes |
protected void writeLiteral(Literal l, PrintWriter writer) { String lang = l.getLanguage(); String form = l.getLexicalForm(); if (!lang.equals("")) { writer.print(" xml:lang=" + attributeQuoted(lang)); } if (l.isWellFormedXML() && !blockLiterals) { writer.print(" " + rdfAt("parseType") + "=" + attributeQuoted("Literal") + ">"); writer.print(form); } else { String dt = l.getDatatypeURI(); if (dt != null) writer.print(" " + rdfAt("datatype") + "=" + substitutedAttribute(dt)); writer.print(">"); writer.print(Util.substituteEntitiesInElementContent(form)); } }
Example #6
Source File: RDFFileManager.java From Benchmark with GNU General Public License v3.0 | 5 votes |
private static String extractEventType(String edID, Dataset dataset) { String queryStr = queryPrefix + " select ?name where {<" + edID + "> owls:presents ?profile. ?profile owlssc:serviceCategory ?z. ?z owlssc:serviceCategoryName ?name}"; QueryExecution qe = QueryExecutionFactory.create(queryStr, dataset); ResultSet results = qe.execSelect(); String type = ""; if (results.hasNext()) { Literal l = results.next().getLiteral("name"); type = l.getString(); } return type; }
Example #7
Source File: ShpConnector.java From TripleGeo with GNU General Public License v3.0 | 5 votes |
/** * * Handle string literals for 'name' attribute */ private void insertResourceNameLiteral(String s, String p, String o, String lang) { Resource resource = model.createResource(s); Property property = model.createProperty(p); if (lang != null) { Literal literal = model.createLiteral(o, lang); resource.addLiteral(property, literal); } else { resource.addProperty(property, o); } }
Example #8
Source File: ShpConnector.java From TripleGeo with GNU General Public License v3.0 | 5 votes |
/** * * Handle triples for string literals */ private void insertLiteralTriplet(String s, String p, String o, String x) { Resource resourceGeometry = model.createResource(s); Property property = model.createProperty(p); if (x != null) { Literal literal = model.createTypedLiteral(o, x); resourceGeometry.addLiteral(property, literal); } else { resourceGeometry.addProperty(property, o); } }
Example #9
Source File: RdbToRdf.java From TripleGeo with GNU General Public License v3.0 | 5 votes |
/** * * Insert a triple for a literal value */ private void insertLiteralTriplet(String s, String p, String o, String x) { Resource resourceGeometry = model.createResource(s); Property property = model.createProperty(p); if (x != null) { Literal literal = model.createTypedLiteral(o, x); resourceGeometry.addLiteral(property, literal); } else { resourceGeometry.addProperty(property, o); } }
Example #10
Source File: RdbToRdf.java From TripleGeo with GNU General Public License v3.0 | 5 votes |
/** * * Insert a triple for the 'name' attribute of a feature */ private void insertResourceNameLiteral(String s, String p, String o, String lang) { Resource resource = model.createResource(s); Property property = model.createProperty(p); if (lang != null) { Literal literal = model.createLiteral(o, lang); resource.addLiteral(property, literal); } else { resource.addProperty(property, o); } }
Example #11
Source File: Template.java From r2rml-parser with Apache License 2.0 | 5 votes |
public Template(Literal literal, TermType termType, String namespace, Model model) { this.text = literal.getString(); this.language = literal.getLanguage(); this.fields = createTemplateFields(); this.termType = termType; this.namespace = namespace; this.model = model; }
Example #12
Source File: LocalResource.java From r2rml-parser with Apache License 2.0 | 5 votes |
/** * Create a literal resource */ public LocalResource(Literal l) { this.literal = Boolean.TRUE; this.localName = l.getLexicalForm(); //System.out.println("f from l" + localName); }
Example #13
Source File: QueryHelper.java From ldp4j with Apache License 2.0 | 5 votes |
public final Literal literal(String binding) { if(!this.solution.contains(binding)) { return null; } RDFNode node = this.solution.get(binding); if(!node.canAs(Literal.class)) { throw new IllegalStateException("Binding '"+binding+"' is not a literal"); } return node.asLiteral(); }
Example #14
Source File: ModelImplJena.java From semweb4j with BSD 2-Clause "Simplified" License | 5 votes |
@Override public void addStatement(org.ontoware.rdf2go.model.node.Resource subject, URI predicate, org.ontoware.rdf2go.model.node.Node object) throws ModelRuntimeException { assertModel(); try { log.debug("adding a statement (" + subject + "," + predicate + "," + object + ")"); this.modificationCount++; if(!(object instanceof DatatypeLiteral)) { this.jenaModel.getGraph().add( new Triple(TypeConversion.toJenaNode(subject, this.jenaModel), TypeConversion.toJenaNode(predicate, this.jenaModel), TypeConversion.toJenaNode(object, this.jenaModel))); } else // DatatypeLiteral { // build Resources/Literals Resource s = null; if(subject instanceof URI) { s = this.jenaModel.createResource(subject.toString()); } else // subject is a BlankNode { s = this.jenaModel.createResource(((Node)((AbstractBlankNodeImpl)subject) .getUnderlyingBlankNode()).getBlankNodeId()); } Property p = this.jenaModel.createProperty(predicate.toString()); String datatypeValue = ((DatatypeLiteral)object).getValue(); String datatypeURI = ((DatatypeLiteral)object).getDatatype().toString(); Literal o = this.jenaModel.createTypedLiteral(datatypeValue, datatypeURI); // Add the statement to the model this.jenaModel.add(s, p, o); } } catch(BadURIException e) { throw new ModelRuntimeException(e); } }
Example #15
Source File: RDFReader.java From marklogic-contentpump with Apache License 2.0 | 5 votes |
private String object(RDFNode node) { if (node.isLiteral()) { Literal lit = node.asLiteral(); String text = lit.getString(); String lang = lit.getLanguage(); String type = lit.getDatatypeURI(); if (lang == null || "".equals(lang)) { lang = ""; } else { lang = " xml:lang='" + escapeXml(lang) + "'"; } if ("".equals(lang)) { if (type == null) { type = "http://www.w3.org/2001/XMLSchema#string"; } type = " datatype='" + escapeXml(type) + "'"; } else { type = ""; } return "<sem:object" + type + lang + ">" + escapeXml(text) + "</sem:object>"; } else if (node.isAnon()) { return "<sem:object>http://marklogic.com/semantics/blank/" + Long.toHexString( hash64(fuse(scramble(milliSecs),randomValue), node.toString())) +"</sem:object>"; } else { return "<sem:object>" + escapeXml(node.toString()) + "</sem:object>"; } }
Example #16
Source File: Mapping.java From GeoTriples with Apache License 2.0 | 5 votes |
/** * Helper method to add definitions from a ResourceMap to its underlying resource * @param map * @param targetResource */ private void addDefinitions(ResourceMap map, Resource targetResource) { /* Infer rdfs:Class or rdf:Property type */ Statement s = vocabularyModel.createStatement(targetResource, RDF.type, map instanceof ClassMap ? RDFS.Class : RDF.Property); if (!this.vocabularyModel.contains(s)) this.vocabularyModel.add(s); /* Apply labels */ for (Literal propertyLabel: map.getDefinitionLabels()) { s = vocabularyModel.createStatement(targetResource, RDFS.label, propertyLabel); if (!this.vocabularyModel.contains(s)) this.vocabularyModel.add(s); } /* Apply comments */ for (Literal propertyComment: map.getDefinitionComments()) { s = vocabularyModel.createStatement(targetResource, RDFS.comment, propertyComment); if (!this.vocabularyModel.contains(s)) this.vocabularyModel.add(s); } /* Apply additional properties */ for (Resource additionalProperty: map.getAdditionalDefinitionProperties()) { s = vocabularyModel.createStatement(targetResource, (Property)(additionalProperty.getProperty(D2RQ.propertyName).getResource().as(Property.class)), additionalProperty.getProperty(D2RQ.propertyValue).getObject()); if (!this.vocabularyModel.contains(s)) this.vocabularyModel.add(s); } }
Example #17
Source File: JenaSesameUtils.java From anno4j with Apache License 2.0 | 5 votes |
/** * Convert the sesame value to a Jena Node * @param theValue the Sesame value * @return the sesame value as a Jena node */ public static RDFNode asJenaNode(Value theValue) { if (theValue instanceof org.openrdf.model.Literal) { return asJenaLiteral( (org.openrdf.model.Literal) theValue); } else { return asJenaResource( (org.openrdf.model.Resource) theValue); } }
Example #18
Source File: JenaSesameUtils.java From anno4j with Apache License 2.0 | 5 votes |
/** * Convert the given Jena node as a Sesame Value * @param theNode the Jena node to convert * @return the jena node as a Sesame Value */ public static Value asSesameValue(RDFNode theNode) { if (theNode == null) { return null; } else if (theNode.canAs(Literal.class)) { return asSesameLiteral(theNode.as(Literal.class)); } else { return asSesameResource(theNode.as(Resource.class)); } }
Example #19
Source File: DataTypeTesting.java From semweb4j with BSD 2-Clause "Simplified" License | 4 votes |
@Test public void testOldDataTypesUsedAsIntended() throws Exception { // laut der jena-dev Mailingliste, sollte man Datentypen so erzeugen: // siehe http://groups.yahoo.com/group/jena-dev/message/14052 // String dtURI = tmpProp.getRange().getURI(); // RDFDatatype dt = TypeMapper.getInstance().getTypeByName(dtURI); // Literal tmpLit = tmpModel.createTypedLiteral("123", dt ); // leider f�hrt das dann dazu das "test"^^xsd:funky equal zu "test" ist, // da dann xsd:funky ein unknown data type ist und // somit "test"^^xsd:funky genau wie ein plain literal behandelt wird. // die erste DatenTyp URI // URI testA = URIUtils.createURI("test://somedata-A"); String strTestA = new String("test://somedata-A"); // die zweite DatenTyp URI // URI testB = URIUtils.createURI("test://somedata-B"); String strTestB = new String("test://somedata-B"); // der erste BaseDatatype wird von der ersten DatenTyp URI erzeugt RDFDatatype DTtestA1 = TypeMapper.getInstance().getTypeByName(strTestA); // der zweite BaseDatatype ebenso RDFDatatype DTtestA2 = TypeMapper.getInstance().getTypeByName(strTestA); // f�r den dritten BaseDatatype nehmen wir eine neue Datentyp URI RDFDatatype DTtestB = TypeMapper.getInstance().getTypeByName(strTestB); com.hp.hpl.jena.rdf.model.Model model = ModelFactory.createDefaultModel(); Literal litA11 = model.createTypedLiteral("teststring", DTtestA1); Literal litA12 = model.createTypedLiteral("teststring", DTtestA1); Literal litA2 = model.createTypedLiteral("teststring", DTtestA2); @SuppressWarnings("unused") Literal litB = model.createTypedLiteral("teststring", DTtestB); // alle Literals haben den gleichen Wert ! // dann wollen wir mal schauen was passiert: // reflexivit�t: A == A , passt assertTrue(litA11.equals(litA11)); // gleicher Inhalt, in zwei versch. Objekten, passt auch assertTrue(litA11.equals(litA12)); // zwei Objekte, mit untersch. BaseDatatypes, von der gleichen Datatype // URI: assertTrue(litA11.equals(litA2)); // und zur sicherheit: 2 versch Datentyp URIs: // -> das sollte eigentlich nicht sein // TODO jena bug assertFalse(litA11.equals(litB)); }
Example #20
Source File: DataTypeTesting.java From semweb4j with BSD 2-Clause "Simplified" License | 4 votes |
@Test public void testDataTypesWithUnknownType() throws Exception { // siehe dazu com.hp.hpl.jena.graph.test.TestTypedLiterals.java, // Funktion testUnknown() // das ganze funktioniert sowohl mit Jena2.2 als auch mit dem jena aus // dem cvs // das ganze Problem scheint wohl zu sein das Jena ziemlich abgefahrene // Sachen machen kann // mit daten typen und der valdierung und solchen advanced topics. // die Erwaeaehnte Test Datei zeigt das ziemlich eindrucksvoll. // Dieser gesamte Test testet direkt die Funktion von Jena, nicht von // rdf2go. (SG) // die erste DatenTyp URI String strTestA = new String("test://somedata-A"); // die zweite DatenTyp URI String strTestB = new String("test://somedata-B"); com.hp.hpl.jena.rdf.model.Model model = ModelFactory.createDefaultModel(); // das hier scheint alles zu sein was notwendig ist damit Jena die data // typed literals // semantisch so behandelt wie wir es wollen // Behold !! JenaParameters.enableSilentAcceptanceOfUnknownDatatypes = true; Literal litA1 = model.createTypedLiteral("teststring", strTestA); Literal litA2 = model.createTypedLiteral("teststring", strTestA); Literal litB = model.createTypedLiteral("teststring", strTestB); // dann wollen wir mal schauen was passiert: // reflexivit�t: A == A , passt assertTrue(litA1.equals(litA1)); // gleicher Inhalt, in zwei versch. Objekten, passt auch assertTrue(litA1.equals(litA2)); // und zur sicherheit: 2 versch Datentyp URIs: nein assertFalse(litA1.equals(litB)); // und nochmal der negativ Test: assertTrue(litB.equals(litB)); assertFalse(litB.equals(litA1)); assertFalse(litB.equals(litA2)); assertEquals("Extract Datatype URI", litA1.getDatatypeURI(), strTestA); assertEquals("Extract value", "teststring", litA1.getLexicalForm()); // im jena cvs geht auch folgendes, damit kann man das Object des Daten // Typs besser manipulieren // assertEquals("Extract value", l1.getValue(), new // BaseDatatype.TypedValue("foo", typeURI)); }
Example #21
Source File: R2RMLReader.java From GeoTriples with Apache License 2.0 | 4 votes |
public boolean isTypeOf(RDFNode node) { if (!node.isLiteral()) return false; Literal l = node.asLiteral(); return XSD.xstring.getURI().equals(l.getDatatypeURI()) || (l.getDatatypeURI() == null && "".equals(l.getLanguage())); }
Example #22
Source File: ResourceMap.java From GeoTriples with Apache License 2.0 | 4 votes |
public void addDefinitionComment(Literal definitionComment) { definitionComments.add(definitionComment); }
Example #23
Source File: ResourceMap.java From GeoTriples with Apache License 2.0 | 4 votes |
public void addDefinitionLabel(Literal definitionLabel) { definitionLabels.add(definitionLabel); }
Example #24
Source File: ResourceMap.java From GeoTriples with Apache License 2.0 | 4 votes |
public Collection<Literal> getDefinitionComments() { return definitionComments; }
Example #25
Source File: ResourceMap.java From GeoTriples with Apache License 2.0 | 4 votes |
public Collection<Literal> getDefinitionLabels() { return definitionLabels; }
Example #26
Source File: Util.java From semanticMDR with GNU General Public License v3.0 | 3 votes |
/** * Creates {@link Literal} from Object * * @param o * is the Object which will be {@link Literal} * @return {@link Literal} object created from the Object, or null if the * Object is null */ public Literal createTypedLiteral(Object o) { if (o == null) { return null; } return ontModel.createTypedLiteral(o); }