Java Code Examples for com.hp.hpl.jena.rdf.model.ModelFactory#createModelForGraph()

private void reload() {
	loader.getMapping().connect();
	Graph graph = loader.getGraphD2RQ();
	
	datasetGraph = DatasetGraphFactory.createOneGraph(graph);
	defaultModel = ModelFactory.createModelForGraph(datasetGraph.getDefaultGraph());		

	hasTruncatedResults = false;
	for (SQLConnection db: loader.getMapping().getSQLConnections()) {
		if (db.limit() != Database.NO_LIMIT) {
			hasTruncatedResults = true;
		}
	}

	if (autoReload) {
		lastModified = watchedFile.lastModified();
		lastReload = System.currentTimeMillis();
	}
}
 

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 insertData(GraphDatabaseService njgraph){
	NeoGraph graph = new NeoGraph(njgraph);
	Model njmodel = ModelFactory.createModelForGraph(graph);
	
	String s2 = "prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> \n" +
           	"PREFIX uni: <http://seecs.edu.pk/db885#>" +
           	"PREFIX foaf: <http://xmlns.com/foaf/0.1/> " +
           "INSERT DATA "+
           "{ " +
           " <http://seecs.edu.pk/db885#KhalidLatif> rdf:type uni:Professor ."+
           "}"; 
	StopWatch watch = new StopWatch();
	UpdateAction.parseExecute(s2, njmodel);
	System.out.println("Insert query took: " + watch.stop() + " ms");
	log.info("Data inserted");
	System.out.println("Data inserted");
}
 

public static void getJob(GraphDatabaseService njgraph)
{
	NeoGraph graph = new NeoGraph(njgraph);
	Model njmodel = ModelFactory.createModelForGraph(graph);
	
	ST descJob = TemplateLoader.getQueriesGroup().getInstanceOf("getGraph");
	String queryASString = Constants.QUERY_PREFIX+ descJob.render();
	
	Query query = QueryFactory.create(queryASString, Syntax.syntaxSPARQL_11);
	QueryExecution qexec = QueryExecutionFactory.create(query, njmodel);
	ResultSet res = qexec.execSelect();
	
	int count=0;
       while(res.hasNext()){
       	//System.out.println("in while"+count);
       	QuerySolution sol = res.next();
       	System.out.println(sol.get("?Z"));
       	count++;
       }
      
      //log.info("Record fetched:"+ count);
      System.out.println("Record fetched:"+ count);
}
 

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 search(GraphDatabaseService njgraph) {
	NeoGraph graph = new NeoGraph(njgraph);
	Model njmodel = ModelFactory.createModelForGraph(graph);
	
	//long start = System.currentTimeMillis();
	String s2 = "prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> \n" +
               	"PREFIX ub: <http://swat.cse.lehigh.edu/onto/univ-bench.owl#>" +
               "SELECT ?X ?name "+
               "WHERE" +
               "{ ?X ub:name ?name ." +
                "FILTER regex(?name,\"^Publication\") ."+
               "}"; 
      	          
       Query query = QueryFactory.create(s2);
       QueryExecution qExe = QueryExecutionFactory.create(query, njmodel);
       StopWatch watch = new StopWatch();
       ResultSet results = qExe.execSelect();
       log.info("Query took (ms): "+ watch.stop());
       System.out.println("Query took (ms): "+ watch.stop());
       //ResultSetFormatter.out(System.out, results);
       
       int count=0;
       while(results.hasNext()){
       	//System.out.println("in while"+count);
       	QuerySolution sol = results.next();
       	System.out.println(sol.get("name"));
       	count++;
       }
      
      log.info("Record fetched:"+ count);
      System.out.println("Record fetched:"+ count);
      
}
 

public static void search(GraphDatabaseService njgraph) {
	NeoGraph graph = new NeoGraph(njgraph);
	Model njmodel = ModelFactory.createModelForGraph(graph);
	
	String s2 = "prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> \n" +
               	"PREFIX uni: <http://seecs.edu.pk/db885#>" +
               	"PREFIX foaf: <http://xmlns.com/foaf/0.1/> " +
               "SELECT ?X ?Z ?Y "+
               "WHERE" +
               "{ ?X ?Z ?Y ." +
               "}"; 
      	          
       Query query = QueryFactory.create(s2); 
       QueryExecution qExe = QueryExecutionFactory.create(query, njmodel);
       StopWatch watch = new StopWatch();
       ResultSet results = qExe.execSelect();
       long endTime = watch.stop();
       log.info("Query took (ms): "+endTime);
       System.out.println("Query took (ms): "+ endTime);
      // ResultSetFormatter.out(System.out, results);
       
       int count=0;
       while(results.hasNext()){
       	//System.out.println("in while"+count);
       	QuerySolution sol = results.next();
       	System.out.println(sol.get("?Z"));
       	count++;
       }
      
      log.info("Record fetched:"+ count);
      System.out.println("Record fetched:"+ count);
}
 

public static void search(GraphDatabaseService njgraph) {
	NeoGraph graph = new NeoGraph(njgraph);
	Model njmodel = ModelFactory.createModelForGraph(graph);
	      
	String s2 = "PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>" +
				"PREFIX food: <http://www.w3.org/TR/2003/PR-owl-guide-20031209/food#>"+
				"PREFIX wine: <http://www.w3.org/TR/2003/PR-owl-guide-20031209/wine#>" +
				"PREFIX owl: <http://www.w3.org/2002/07/owl#>"+
				"SELECT ?X WHERE {"+
				"?X food:SweetFruit ?Z . }";

       Query query = QueryFactory.create(s2);
       QueryExecution qExe = QueryExecutionFactory.create(query, njmodel);
       StopWatch watch = new StopWatch();
       ResultSet results = qExe.execSelect();
       System.out.println("Query took (ms): "+ watch.stop());
       //ResultSetFormatter.out(System.out, results);
       
       int count=0;
       while(results.hasNext()){
       	//System.out.println("in while"+count);
       	QuerySolution sol = results.next();
       	System.out.print(sol.get("X"));
       	count++;
       }
      System.out.println("Record fetched:"+ count);
      
}
 

public static void search(GraphDatabaseService njgraph) {
	NeoGraph graph = new NeoGraph(njgraph);
	Model njmodel = ModelFactory.createModelForGraph(graph);
	
	String s2 = "prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> \n" +
               	"PREFIX uni: <http://seecs.edu.pk/db885#>" +
               	"PREFIX foaf: <http://xmlns.com/foaf/0.1/> " +
               "SELECT ?X ?Z ?Y "+
               "WHERE" +
               "{ ?X ?Z ?Y ." +
               "}"; 
      	          
       Query query = QueryFactory.create(s2); 
       QueryExecution qExe = QueryExecutionFactory.create(query, njmodel);
       StopWatch watch = new StopWatch();
       ResultSet results = qExe.execSelect();
       log.info("Query took (ms): "+ watch.stop());
       System.out.println("Query took (ms): "+ watch.stop());
      // ResultSetFormatter.out(System.out, results);
       
       int count=0;
       while(results.hasNext()){
       	//System.out.println("in while"+count);
       	QuerySolution sol = results.next();
       	System.out.println(sol.get("?Z"));
       	count++;
       }
      
      log.info("Record fetched:"+ count);
      System.out.println("Record fetched:"+ count);
}
 

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());
}
 

public Model getModelD2RQ() {
	if (dataModel == null) {
		dataModel = ModelFactory.createModelForGraph(getGraphD2RQ());
	}
	return dataModel;
}
 

public void doGet(HttpServletRequest request, HttpServletResponse response)
		throws IOException, ServletException {
	D2RServer server = D2RServer.fromServletContext(getServletContext());
	server.checkMappingFileChanged();
	String relativeResourceURI = request.getRequestURI().substring(
			request.getContextPath().length()
					+ request.getServletPath().length());
	// Some servlet containers keep the leading slash, some don't
	if (!"".equals(relativeResourceURI)
			&& "/".equals(relativeResourceURI.substring(0, 1))) {
		relativeResourceURI = relativeResourceURI.substring(1);
	}
	if (request.getQueryString() != null) {
		relativeResourceURI = relativeResourceURI + "?"
				+ request.getQueryString();
	}

	/* Determine service stem, i.e. vocab/ in /[vocab/]page */
	int servicePos;
	if (-1 == (servicePos = request.getServletPath().indexOf(
			"/" + D2RServer.getPageServiceName())))
		throw new ServletException("Expected to find service path /"
				+ D2RServer.getPageServiceName());
	String serviceStem = request.getServletPath().substring(1,
			servicePos + 1);

	String resourceURI = server.resourceBaseURI(serviceStem)
			+ relativeResourceURI;
	String documentURL = server.dataURL(serviceStem, relativeResourceURI);
	String pageURL = server.pageURL(serviceStem, relativeResourceURI);

	VelocityWrapper velocity = new VelocityWrapper(this, request, response);
	Context context = velocity.getContext();
	context.put("uri", resourceURI);

	// Build resource description
	Resource resource = ResourceFactory.createResource(resourceURI);
	boolean outgoingTriplesOnly = server.isVocabularyResource(resource)
			&& !server.getConfig().getVocabularyIncludeInstances();
	int limit = server.getConfig().getLimitPerPropertyBridge();
	Model description = null;
	try {
		ResourceDescriber describer = new ResourceDescriber(
				server.getMapping(), resource.asNode(), outgoingTriplesOnly,
				limit, Math.round(server.getConfig().getPageTimeout() * 1000));
		description = ModelFactory.createModelForGraph(describer.description());
	} catch (QueryCancelledException ex) {
		velocity.reportError(
				504, "504 Gateway Timeout", "The operation timed out.");
		return;
	}
	if (description.size() == 0) {
		velocity.reportError(404, "404 Not Found", "No resource with this identifier exists in the database.");
		return;
	}
	// Get a Resource that is attached to the description model
	resource = description.getResource(resourceURI);

	this.prefixes = server.getPrefixes(); // model();

	if (server.getConfig().serveMetadata()) {
		// create and add metadata to context
		MetadataCreator resourceMetadataCreator = new MetadataCreator(
				server, server.getConfig().getResourceMetadataTemplate(
						server, getServletContext()));

		Model metadata = resourceMetadataCreator.addMetadataFromTemplate(
				resourceURI, documentURL, pageURL);
		if (!metadata.isEmpty()) {
			List<Statement> mList = metadata.getResource(documentURL)
					.listProperties().toList();
			Collections.sort(mList, MetadataCreator.subjectSorter);
			context.put("metadata", mList);

			context.put("metadataroot", metadata.getResource(documentURL));

			// add prefixes to context
			Map<String, String> nsSet = metadata.getNsPrefixMap();
			nsSet.putAll(description.getNsPrefixMap());

			context.put("prefixes", nsSet.entrySet());
			context.put("renderedNodesMap",
					new HashMap<Resource, Boolean>());

			// add a empty map for keeping track of blank nodes aliases
			context.put("blankNodesMap", new HashMap<Resource, String>());
		} else {
			context.put("metadata", Boolean.FALSE);
		}
	} else {
		context.put("metadata", Boolean.FALSE);
	}

	context.put("rdf_link", documentURL);
	context.put("label", getBestLabel(resource));
	context.put("properties", collectProperties(description, resource));
	context.put("classmap_links", classmapLinks(resource));
	context.put("limit_per_property_bridge", limit > 0 ? limit : null);
	velocity.mergeTemplateXHTML("resource_page.vm");
}