Examples with Property org.apache.jena.rdf.model.Property used on opensource projects

Example 76 with Property

use of org.apache.jena.rdf.model.Property in project jena by apache.

the class TestDatasetTDB method load3.

private static void load3(Model model) {
    Resource r3 = model.createResource(base1 + "r3");
    Property p1 = model.createProperty(baseNS + "p2");
    model.add(r3, p1, "x1");
    model.add(r3, p1, "x2");
}

Example 77 with Property

use of org.apache.jena.rdf.model.Property in project jena by apache.

the class GeoSPARQLOperations method convertGeometryStructure.

/**
 * Convert Geometry Datatypes (WKT, GML, etc.) in Model to GeoSPARQL
 * structure.<br>
 * (Subject-property-GeometryLiteral) becomes (Feature-hasGeometry-Geometry)
 * and (Geometry-hasSerialization-GeometryLiteral).<br>
 * Original property will be removed from resulting Model.
 *
 * @param model
 * @return Converted model.
 */
public static final Model convertGeometryStructure(Model model) {
    Model outputModel = ModelFactory.createDefaultModel();
    outputModel.add(model);
    outputModel.setNsPrefixes(model.getNsPrefixMap());
    List<Statement> additionalStatements = new ArrayList<>();
    StmtIterator stmtIter = outputModel.listStatements();
    while (stmtIter.hasNext()) {
        Statement stmt = stmtIter.nextStatement();
        RDFNode object = stmt.getObject();
        if (object.isLiteral()) {
            Literal literal = object.asLiteral();
            RDFDatatype datatype = literal.getDatatype();
            if (GeometryDatatype.check(datatype)) {
                Property property = stmt.getPredicate();
                if (property.equals(Geo.HAS_SERIALIZATION_PROP) || property.equals(Geo.AS_WKT_PROP) || property.equals(Geo.AS_GML_PROP)) {
                    // Model already contains the GeoSPARQL properties for this literal so skipping.
                    continue;
                }
                if (outputModel.contains(property, RDFS.subPropertyOf, Geo.HAS_SERIALIZATION_PROP)) {
                    // The property is a sub property of hasSerialization so skipping. Only RDFS inferencing needs to be applied.
                    continue;
                }
                Resource feature = stmt.getSubject();
                Resource geometry = createGeometry(feature);
                additionalStatements.add(ResourceFactory.createStatement(feature, Geo.HAS_GEOMETRY_PROP, geometry));
                additionalStatements.add(ResourceFactory.createStatement(geometry, Geo.HAS_SERIALIZATION_PROP, literal));
                stmtIter.remove();
            }
        }
    }
    outputModel.add(additionalStatements);
    return outputModel;
}

Example 78 with Property

use of org.apache.jena.rdf.model.Property in project jena by apache.

the class GeoSPARQLOperations method handleLiteral.

private static void handleLiteral(Statement statement, Model outputModel, String outputSrsURI, GeometryDatatype outputDatatype) {
    Literal literal = statement.getLiteral();
    RDFDatatype datatype = literal.getDatatype();
    // Check whether a supported geometry literal.
    if (GeometryDatatype.check(datatype)) {
        GeometryWrapper originalGeom = GeometryWrapper.extract(literal);
        GeometryWrapper convertedGeom;
        try {
            if (outputSrsURI != null) {
                convertedGeom = originalGeom.convertSRS(outputSrsURI);
            } else {
                convertedGeom = originalGeom;
            }
        } catch (FactoryException | MismatchedDimensionException | TransformException ex) {
            LOGGER.error("SRS Conversion Exception: {} - Literal: {}, Output SRS URI: {}. Reusing original literal for output.", ex.getMessage(), literal, outputSrsURI);
            convertedGeom = originalGeom;
        }
        if (outputDatatype == null) {
            outputDatatype = GeometryDatatype.get(datatype);
        }
        Literal convertedGeometryLiteral = convertedGeom.asLiteral(outputDatatype);
        // Assign the existing property unless it needs to be switched for asGML and asWKT.
        Property outputProperty = statement.getPredicate();
        if (outputProperty.equals(Geo.AS_GML_PROP) && outputDatatype.equals(WKTDatatype.INSTANCE)) {
            outputProperty = Geo.AS_WKT_PROP;
        } else if (outputProperty.equals(Geo.AS_WKT_PROP) && outputDatatype.equals(GMLDatatype.INSTANCE)) {
            outputProperty = Geo.AS_GML_PROP;
        }
        Statement outputStatement = ResourceFactory.createStatement(statement.getSubject(), outputProperty, convertedGeometryLiteral);
        outputModel.add(outputStatement);
    } else {
        // Not a statement of interest so store for output.
        outputModel.add(statement);
    }
}

Example 79 with Property

use of org.apache.jena.rdf.model.Property in project jena by apache.

the class TestReasoners method testModelFactoryRDFS.

/**
 * Test the ModelFactory interface
 */
public void testModelFactoryRDFS() {
    Model data = ModelFactory.createDefaultModel();
    Property p = data.createProperty("urn:x-hp:ex/p");
    Resource a = data.createResource("urn:x-hp:ex/a");
    Resource b = data.createResource("urn:x-hp:ex/b");
    Resource C = data.createResource("urn:x-hp:ex/c");
    data.add(p, RDFS.range, C).add(a, p, b);
    Model result = ModelFactory.createRDFSModel(data);
    StmtIterator i = result.listStatements(b, RDF.type, (RDFNode) null);
    TestUtil.assertIteratorValues(this, i, new Object[] { data.createStatement(b, RDF.type, RDFS.Resource), data.createStatement(b, RDF.type, C) });
}

Example 80 with Property

use of org.apache.jena.rdf.model.Property in project jena by apache.

the class TestReasoners method testTransitiveReduction.

/**
 * Check a complex graph's transitive reduction.
 */
public void testTransitiveReduction() {
    Model test = FileManager.getInternal().loadModelInternal("testing/reasoners/bugs/subpropertyModel.n3");
    Property dp = test.getProperty(TransitiveReasoner.directSubPropertyOf.getURI());
    doTestTransitiveReduction(test, dp);
}