Java Code Examples for com.hp.hpl.jena.rdf.model.Model#read()

static void readRdfFile (String pathToRdfFile) {
        // create an empty model
        Model model = ModelFactory.createDefaultModel();

        // use the FileManager to find the input file
        InputStream in = FileManager.get().open( pathToRdfFile );
        if (in == null) {
            throw new IllegalArgumentException(
                    "File: " + pathToRdfFile + " not found");
        }

// read the RDF/XML file
        model.read(in, null);

// write it to standard out
        model.write(System.out);
    }
 

@Test
public void createModelFromReified() {
	Model model = ModelFactory.createDefaultModel();
	String modelFilename = "example.rdf";
	InputStream isMap = FileManager.get().open(modelFilename);
	try {
		model.read(isMap, null, "N3");
	} catch (Exception e) {
		log.error("Error reading model.");
		System.exit(0);
	}
	
	ArrayList<Statement> stmtToAdd = new ArrayList<Statement>();
	Model newModel = ModelFactory.createDefaultModel();
	RSIterator rsIter = model.listReifiedStatements();
	while (rsIter.hasNext()) {
		ReifiedStatement rstmt = rsIter.next();
		stmtToAdd.add(rstmt.getStatement());
	}
	rsIter.close();
	newModel.add(stmtToAdd.toArray(new Statement[stmtToAdd.size()]));
	
	log.info("newModel has " + newModel.listStatements().toList().size() + " statements");
}
 

/**
 * Collects the given triples sample.
 * 
 * @param jobId the job identifier.
 * @param triples the sample triples.
 */
synchronized void collectSample(final Integer jobId, final String triples) {
	if (triples == null) {
		return;
	}
	
	Model sample = samples.get(jobId);
	if (sample == null) {
		sample = ModelFactory.createDefaultModel();
		samples.put(jobId, sample);
	}
	
	try {
		sample.read(new StringReader(triples), "http://example.org", "N-TRIPLES");
	} catch (final Exception exception) {
		log.info(MessageCatalog._00059_UNABLE_TO_PARSE_SAMPLE, exception, triples);
	}
}
 

@Test
public void testSparqlQuery() {
	ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("test-context.xml");
	Util util = (Util) context.getBean("util");
	
	Model model = ModelFactory.createDefaultModel();
	String modelFilename = "dump1-epersons.rdf";
	InputStream isMap = FileManager.get().open(modelFilename);
	try {
		model.read(isMap, null, "N3");
	} catch (Exception e) {
		log.error("Error reading model.");
		System.exit(0);
	}
	String query = "SELECT ?x ?z WHERE {?x dc:source ?z} ";
	LocalResultSet rs = util.sparql(model, query);
	log.info("found " + String.valueOf(rs.getRows().size()));
	
	context.close();
}
 

private List<String> getRemoteOntologyTriples() {
    List<String> triples = null;

    try (
            final ByteArrayOutputStream os = new ByteArrayOutputStream();
    ){
        Model model = ModelFactory.createDefaultModel();
        model.read(ontologyURI);

        model.write(os, "N-TRIPLE");

        String ontology = os.toString("UTF8");

        triples = new ArrayList<>();
        for (String t : ontology.split("\n")) {
            triples.add(t.trim());
        }
        Collections.sort(triples);

    } catch (Exception e) {
        logger.warn("Cannot download remote ontology", e);
    } finally {
        return triples;
    }
}
 

public static void write(GraphDatabaseService njgraph) {
	Logger log= Logger.getLogger(Wine.class);
	InputStream in = FileManager.get().open( inputFileName );
	if (in == null) {
           throw new IllegalArgumentException( "File: " + inputFileName + " not found");
       }
       
	Model model = ModelFactory.createDefaultModel();
       model.read(in,"","RDF");
       double triples = model.size();
       log.info("Model loaded with " +  triples + " triples");
       System.out.println("Model loaded with " +  triples + " triples");
       
	NeoGraph graph = new NeoGraph(njgraph);
	graph.startBulkLoad();
	log.info("Connection created");
	Model njmodel = ModelFactory.createModelForGraph(graph);
	log.info("NeoGraph Model initiated");
	System.out.println("NeoGraph Model initiated");
	StopWatch watch = new StopWatch();
	//log.info(njmodel.add(model));
	njmodel.add(model);
	log.info("Storing completed (ms): " + watch.stop());
	graph.stopBulkLoad();
	System.out.println("Storing completed (ms): " + watch.stop());
}
 

public static void write(GraphDatabaseService njgraph) {
	InputStream in = FileManager.get().open( inputFileName );
	if (in == null) {
           throw new IllegalArgumentException( "File: " + inputFileName + " not found");
       }
       
	Model model = ModelFactory.createDefaultModel();
       model.read(in,"","RDF");
       double triples = model.size();
       System.out.println("Model loaded with " +  triples + " triples");
       
	NeoGraph graph = new NeoGraph(njgraph);
	Model njmodel = ModelFactory.createModelForGraph(graph);
	graph.startBulkLoad();
	System.out.println("NeoGraph Model initiated");
	StopWatch watch = new StopWatch();
	//log.info(njmodel.add(model));
	njmodel.add(model);
	System.out.println("Storing completed (ms): " + watch.stop());
	graph.stopBulkLoad();
}
 

public static void main(String[] args) throws Exception {
	Dataset memoryDataset = DatasetFactory.createMem();
	Model memoryModel = ModelFactory.createDefaultModel();
	memoryModel.read(new FileReader("/work/workspaces/rdf/SolRDF/solrdf/src/test/resources/sample_data/one_triple_1.ttl"), "http://e.org", "TTL");
	memoryDataset.addNamedModel("http://grapha.com", memoryModel);
	
	memoryModel = ModelFactory.createDefaultModel();
	memoryModel.read(new FileReader("/work/workspaces/rdf/SolRDF/solrdf/src/test/resources/sample_data/one_triple_2.ttl"), "http://e.org", "TTL");
	memoryDataset.addNamedModel("http://graphb.com", memoryModel);
	
	memoryModel = ModelFactory.createDefaultModel();
	memoryModel.read(new FileReader("/work/workspaces/rdf/SolRDF/solrdf/src/test/resources/sample_data/one_triple_3.ttl"), "http://e.org", "TTL");
	memoryDataset.addNamedModel("http://graphc.com", memoryModel);
	
	memoryModel = ModelFactory.createDefaultModel();
	memoryModel.read(new FileReader("/work/workspaces/rdf/SolRDF/solrdf/src/test/resources/sample_data/one_triple_4.ttl"), "http://e.org", "TTL");
	memoryDataset.addNamedModel("http://graphd.com", memoryModel);
	
	final Query query = QueryFactory.create(q2());//"SELECT ?s FROM <http://grapha.com> WHERE { ?s <http://example.org/title> ?o }");
	
	System.out.println(ResultSetFormatter.asText(QueryExecutionFactory.create(query, memoryDataset).execSelect()));
}
 

public static void write(GraphDatabaseService njgraph) {
	InputStream in = FileManager.get().open( inputFileName );
	if (in == null) {
           throw new IllegalArgumentException( "File: " + inputFileName + " not found");
       }
       
	Model model = ModelFactory.createDefaultModel();
       model.read(in,"","TTL");
       double triples = model.size();
       log.info("Model loaded with " +  triples + " triples");
       System.out.println("Model loaded with " +  triples + " triples");
       Map<String, String> prefixMap = model.getNsPrefixMap();
      // System.out.println("Prefix Mapping: " + prefixMap);
       
	NeoGraph graph = new NeoGraph(njgraph);
	graph.getPrefixMapping().setNsPrefixes(prefixMap);
	graph.startBulkLoad();
	log.info("Connection created");
	Model njmodel = ModelFactory.createModelForGraph(graph);
	log.info("NeoGraph Model initiated");
	System.out.println("NeoGraph Model initiated");
	
	//log.info(njmodel.add(model));
	//njmodel.add(model);
	StmtIterator iterator = model.listStatements();
	StopWatch watch = new StopWatch();
	int count = 0;
	while(iterator.hasNext()){
		njmodel.add(iterator.next());
		count++;
	}
	System.out.println("Total triples loaded are:"+ count);
	graph.stopBulkLoad();
	//log.info("Storing completed (ms): " + watch.stop());
	System.out.println("Storing completed (ms): " + watch.stop());
}
 

@Override
public void importRDF(InputStream in, TopicMap map) {
    if(in != null) {
        // create an empty model
        Model model = ModelFactory.createDefaultModel();
        // read the RDF json-ld file
        model.read(in, "", "JSON-LD");
        RDF2TopicMap(model, map);
    }
}
 

@Override
public void importRDF(InputStream in, TopicMap map) {
    if(in != null) {
        // create an empty model
        Model model = ModelFactory.createDefaultModel();
        // read the RDF json-ld file
        model.read(in, "", "JSON-LD");
        RDF2TopicMap(model, map);
    }
}
 

public static void write(BatchInserter inserter) {
	InputStream in = FileManager.get().open( inputFileName );
	if (in == null) {
           throw new IllegalArgumentException( "File: " + inputFileName + " not found");
       }
       
	Model model = ModelFactory.createDefaultModel();

	StopWatch watch = new StopWatch();
       BatchHandler handler = new BatchHandler(inserter,500000,60);
       model.register(handler);
       
       model.read(in,"","TTL");	

       double triples = model.size();
       //log.info("Model loaded with " +  triples + " triples");
       System.out.println("Model loaded with " +  triples + " triples" + " time taken: " + watch.stop());
       //Map<String, String> prefixMap = model.getNsPrefixMap();
      // System.out.println("Prefix Mapping: " + prefixMap);
       
	//NeoGraph graph = new NeoGraph(njgraph);
	//graph.getPrefixMapping().setNsPrefixes(prefixMap);
	//graph.startBulkLoad();
	//log.info("Connection created");
	//Model njmodel = ModelFactory.createModelForGraph(graph);
	/*log.info("NeoGraph Model initiated");
	System.out.println("NeoGraph Model initiated");
	
	StopWatch watch = new StopWatch();
	//njmodel.add(model);
	
	long endTime = watch.stop();
	
	log.info("Total triples loaded are:"+ graph.size());
	System.out.println("Total triples loaded are:"+ graph.size());
	graph.stopBulkLoad();
	
	log.info("Storing completed (ms): " + endTime);
	System.out.println("Storing completed (ms): " + endTime);*/
}
 

/**
 * @param args ..
 */
public static void main(String[] args) throws FileNotFoundException {
	Model m = ModelFactory.createDefaultModel();
	m.read(new FileInputStream(new File(
	        "P:\\__sirdf\\rdf2go\\src\\org\\ontoware\\rdf2go\\example\\thiemann.foaf.rdf.xml")),
	        "");
	m.write(System.out, "N-TRIPLES");
}
 

public static Model loadMetadataTemplate(InputStream is) {
	try {
		Model tplModel = ModelFactory.createDefaultModel();
		tplModel.read(is, "about:prefix:", "TTL");
		return tplModel;
	} catch (JenaException e) {
		// ignore
	}
	return null;
}
 

/**
 * Loads all triples found in the datafile associated with the given name.
 * 
 * @param datafileName the name of the datafile.
 * @param graphs an optional set of target graph URIs. 
 * @throws Exception hopefully never, otherwise the test fails.
 */
protected void load(final MisteryGuest data) throws Exception {
	if (data.datasets == null || data.datasets.length == 0) {
		return;
	}
	
	final Model memoryModel = data.graphURI != null 
			? memoryDataset.getNamedModel(data.graphURI) 
			: memoryDataset.getDefaultModel();
			 
	for (final String datafileName : data.datasets) {
		final String dataURL = source(datafileName).toString();
		final String lang = datafileName.endsWith("ttl") 
				? "TTL" 
				: datafileName.endsWith("nt") 
					? "N-TRIPLES" 
					: null;
		memoryModel.read(dataURL, DUMMY_BASE_URI, lang);
	}  
 
	if (data.graphURI != null) {
		SOLRDF_CLIENT.add(data.graphURI, memoryModel.listStatements());
	} else {
		SOLRDF_CLIENT.add(memoryModel.listStatements());
	}
	
	SOLRDF_CLIENT.commit();
	
	final Iterator<Node> nodes = memoryDataset.asDatasetGraph().listGraphNodes();
	if (nodes != null) {
		while (nodes.hasNext()) {
			final Node graphNode = nodes.next();
			final String graphUri = graphNode.getURI();
			final Model inMemoryNamedModel = memoryDataset.getNamedModel(graphUri);
			assertIsomorphic(inMemoryNamedModel, SOLRDF_CLIENT.getNamedModel(graphUri), graphUri);		
		}
	}
	
	final Model model = (data.graphURI != null) ? SOLRDF_CLIENT.getNamedModel(data.graphURI) : SOLRDF_CLIENT.getDefaultModel();
	assertFalse(Arrays.toString(data.datasets) + ", " + data.query, model.isEmpty());
	assertIsomorphic(memoryModel, model, null);
}
 

public Model createRDFModel() throws IOException, DataServiceFault {
	InputStream in = DBUtils.getInputStreamFromPath(this.getRDFDataSourcePath());
	Model model = ModelFactory.createMemModelMaker().createDefaultModel();
	model.read(in,null);		
	return model;
}
 

public static void main(String[] args) throws FileNotFoundException {
	Model model = ModelFactory.createDefaultModel();
	model.read(new FileReader("???"), "http://example,org", "N3");
	
	System.out.println(model.size());
}
 

public ResultBean buildHtmlResource(String IRI, Locale locale, ConfigurationBean conf, OntologyBean ontoBean, boolean localMode) throws Exception {
	ResultBean result = new ResultBean();
	List<String> videos = new ArrayList<String>();
	List<String> audios = new ArrayList<String>();
	List<String> images = new ArrayList<String>();
	List<String> linking = new ArrayList<String>();
	SPARQLEndPoint se = new SPARQLEndPoint(conf, ontoBean, locale.getLanguage());
	result.setMainIRI(IRI);

	String preferredLanguage = conf.getPreferredLanguage();
	if (preferredLanguage.equals("auto")) {
		preferredLanguage = locale.getLanguage();
	}
	List<TripleBean> triples = new ArrayList<TripleBean>();
	if (conf.getEndPointUrl() != null && conf.getEndPointUrl().equals("<>")) {
		localMode = true;
	}
	if (localMode) {
		/* looking for data via content negotiation */
		Model m = ModelFactory.createDefaultModel();
		try {
			m.read(IRI);
		} catch (Exception e) {
			throw new Exception(messageSource.getMessage("error.noContentNegotiation", null, "sorry but content negotiation is not supported by the IRI", locale));
		}
		triples = se.doLocalQuery(m, IRI, conf.getDefaultQueries());
	} else {
		triples = se.doQuery(IRI, conf.getDefaultQueries(), null);
	}
	boolean betterTitleMatch = false, betterDescrMatch = false;
	for (TripleBean tripleBean : triples) {

		if (tripleBean.getIRI() == null) {
			tripleBean.setIRI(IRI);
			tripleBean.setNsIRI(Misc.toNsResource(tripleBean.getIRI(), conf));
		}

		if (conf.getTitleProperties().contains(tripleBean.getProperty().getNsProperty()) || conf.getTitleProperties().contains(tripleBean.getProperty().getProperty())) {
			if (tripleBean.getIRI().equals(IRI) && !betterTitleMatch && (result.getTitle() == null || result.getTitle().trim().equals("") || (tripleBean.getLang() != null && (preferredLanguage.equals(tripleBean.getLang()) || tripleBean.getLang().equals("en"))))) {
				result.setTitle(Misc.stripHTML(tripleBean.getValue()));
				if (preferredLanguage.equals(tripleBean.getLang())) {
					betterTitleMatch = true;
				}
			}
		} else if (conf.getDescriptionProperties().contains(tripleBean.getProperty().getNsProperty()) || conf.getDescriptionProperties().contains(tripleBean.getProperty().getProperty())) {
			if (tripleBean.getIRI().equals(IRI) && !betterDescrMatch && (result.getDescriptionProperty() == null || (tripleBean.getLang() != null && (preferredLanguage.equals(tripleBean.getLang()) || tripleBean.getLang().equals("en"))))) {
				result.setDescriptionProperty(tripleBean.getProperty());
				if (preferredLanguage.equals(tripleBean.getLang())) {
					betterDescrMatch = true;
				}
			}
		} else if (conf.getLatitudeProperties().contains(tripleBean.getProperty().getNsProperty()) || conf.getLatitudeProperties().contains(tripleBean.getProperty().getProperty())) {
			result.setLatitude(tripleBean.getValue());
		} else if (conf.getLongitudeProperties().contains(tripleBean.getProperty().getNsProperty()) || conf.getLongitudeProperties().contains(tripleBean.getProperty().getProperty())) {
			result.setLongitude(tripleBean.getValue());
		} else if (conf.getImageProperties().contains(tripleBean.getProperty().getNsProperty()) || conf.getImageProperties().contains(tripleBean.getProperty().getProperty())) {
			images.add(tripleBean.getValue());
		}  else if (conf.getAudioProperties().contains(tripleBean.getProperty().getNsProperty()) || conf.getAudioProperties().contains(tripleBean.getProperty().getProperty())) {
			audios.add(tripleBean.getValue());
		} else if (conf.getVideoProperties().contains(tripleBean.getProperty().getNsProperty()) || conf.getVideoProperties().contains(tripleBean.getProperty().getProperty())) {
			videos.add(tripleBean.getValue());
		}  else if (conf.getLinkingProperties().contains(tripleBean.getProperty().getNsProperty()) || conf.getLinkingProperties().contains(tripleBean.getProperty().getProperty())) {
			linking.add(tripleBean.getValue());
		} else if (conf.getTypeProperties().contains(tripleBean.getProperty().getNsProperty()) || conf.getTypeProperties().contains(tripleBean.getProperty().getProperty())) {
			result.setTypeProperty(tripleBean.getProperty());
		}

		if (tripleBean.getType().equals("iri")) {
			tripleBean.setUrl(Misc.toBrowsableUrl(tripleBean.getValue(), conf));
			tripleBean.setNsValue(Misc.toNsResource(tripleBean.getValue(), conf));
			if (!tripleBean.getUrl().equals(tripleBean.getValue()) || tripleBean.getValue().startsWith(conf.getPublicUrlPrefix())) {
				tripleBean.setLocal(true);
			}
			result.addResource(tripleBean, tripleBean.getIRI());
		} else if (tripleBean.getType().equals("literal")) {
			result.addLiteral(tripleBean, tripleBean.getIRI());
		} else if (tripleBean.getType().equals("bnode")) {
			result.addBnode(tripleBean, tripleBean.getIRI());
		}
	}

	result.setImages(images);
	result.setLinking(linking);
	result.setVideos(videos);
	result.setAudios(audios);

	return result;
}