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Assignment3/v130023-jlcastanon/Task06.java

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+package upm.oeg.wsld.jena;
+
+import java.io.InputStream;
+import org.apache.jena.ontology.Individual;
+import org.apache.jena.ontology.OntClass;
+import org.apache.jena.ontology.OntModel;
+import org.apache.jena.ontology.OntModelSpec;
+import org.apache.jena.rdf.model.ModelFactory;
+import org.apache.jena.rdf.model.Property;
+import org.apache.jena.util.FileManager;
+import org.apache.jena.vocabulary.VCARD;
+
+/**
+ * Task 06: Modifying ontologies (RDFs)
+
+ */
+
+public class Task06 {
+	public static String ns = "http://somewhere#";
+	public static String foafNS = "http://xmlns.com/foaf/0.1/";
+	public static String foafEmailURI = foafNS+"email";
+	public static String foafKnowsURI = foafNS+"knows";
+	public static String stringTypeURI = "http://www.w3.org/2001/XMLSchema#string";
+
+	public static void main (String[]args){
+
+		String filename = "resources/example5.rdf";		
+		OntModel model = ModelFactory.createOntologyModel(OntModelSpec.RDFS_MEM);
+		InputStream in = FileManager.get().open(filename);
+
+		if (in == null)
+			throw new IllegalArgumentException("File: " + filename + " not found");
+
+		model.read(in, null);
+
+		OntClass researcher = model.createClass(ns+"Researcher");
+
+		OntClass university = model.createClass(ns+"University");
+
+		model.getOntClass(ns+"Person").addSubClass(researcher);
+
+		Property worksIn = model.createProperty(ns + "worksIn");
+
+
+		Individual janeSmith = researcher.createIndividual(ns + "Jane Smith");
+
+
+		janeSmith.addProperty(VCARD.FN, "Jane Smith");
+		janeSmith.addProperty(VCARD.Given, "Jane");
+		janeSmith.addProperty(VCARD.Family, "Smith");
+
+
+		Individual upm = university.createIndividual(ns + "UPM");
+		Individual johnSmith = model.getIndividual(ns + "JohnSmith");
+		johnSmith.addProperty(worksIn, upm);
+
+		model.write(System.out, "RDF/XML-ABBREV");
+	}
+}

Assignment3/v130023-jlcastanon/Task07.java

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+package upm.oeg.wsld.jena;
+
+import java.io.InputStream;
+import org.apache.jena.ontology.Individual;
+import org.apache.jena.ontology.OntClass;
+import org.apache.jena.ontology.OntModel;
+import org.apache.jena.ontology.OntModelSpec;
+import org.apache.jena.rdf.model.ModelFactory;
+import org.apache.jena.util.FileManager;
+import org.apache.jena.util.iterator.ExtendedIterator;
+
+/**
+ * Task 07: Querying ontologies (RDFs)
+ *
+ */
+public class Task07 {
+	public static String ns = "http://somewhere#";
+
+	public static void main(String args[]) {
+
+		String filename = "resources/example6.rdf";
+
+
+		OntModel model = ModelFactory.createOntologyModel(OntModelSpec.RDFS_MEM);
+
+		InputStream in = FileManager.get().open(filename);
+
+		if (in == null)
+			throw new IllegalArgumentException("File: "+filename+" not found");
+
+		model.read(in, null);
+
+		System.out.println("----------Task7.1----------");
+
+		ExtendedIterator<Individual> it = model.listIndividuals();
+		OntClass person = model.getOntClass(ns + "Person");
+
+		while (it.hasNext()) {
+			Individual ind = it.next();
+			if (ind.hasOntClass(person))
+				System.out.println("|-- Individual: " + ind.getURI());			
+		}
+
+		System.out.println("----------Task7.2----------");
+
+		ExtendedIterator<OntClass> it2 = person.listSubClasses();
+
+		while (it2.hasNext()) {
+			OntClass ind2 = it2.next();
+			System.out.println("|-- Subclass: " + ind2.getURI());
+		}
+
+		System.out.println("----------Task7.3----------");
+
+		OntModel modelo = ModelFactory.createOntologyModel(OntModelSpec.OWL_DL_MEM_RDFS_INF,model);
+		OntClass persona = modelo.getOntClass(ns+"Person");
+		ExtendedIterator<OntClass> it3 = persona.listSubClasses();
+		ExtendedIterator<Individual> it4 = modelo.listIndividuals(persona);
+		while (it3.hasNext()) {
+			OntClass ind3 = it3.next();
+			System.out.println("|-- Subclasses: " + ind3.getURI());
+		}
+
+		while (it4.hasNext()) {
+			Individual indiv_instance = (Individual) it4.next();
+			System.out.println("|-- Instances: " + indiv_instance.getURI());
+		}
+
+	}
+}