Examples of org.apache.clerezza.rdf.core.Graph

org.apache.clerezza.rdf.core.Graph
A graph, modeled as a set of triples. This interface does not extend java.util.Set because of the different identity constraints, i.e. two Graphs may be equal (isomorphic) even if the set of triples are not. Implementations MUST be immutable and throw respective exceptions, when add/remove-methods are called. @see org.apache.clerezza.rdf.core.impl.AbstractGraph @author reto

            // Set the ontology ID
            root.add(new TripleImpl(iri, RDF.type, OWL.Ontology));


            if (merge) {


                Graph custom, core;


                // Get the subjects of "bad" triples (those with subjects of type owl:Ontology).
                Iterator<Triple> it;
                Set<NonLiteral> ontologies = new HashSet<NonLiteral>();
                Set<Resource> importTargets = new HashSet<Resource>();
                custom = this.getCustomSpace().export(Graph.class, merge);
                // root.addAll(space);
                it = custom.filter(null, RDF.type, OWL.Ontology);
                while (it.hasNext())
                    ontologies.add(it.next().getSubject());
                it = custom.filter(null, OWL.imports, null);
                while (it.hasNext())
                    importTargets.add(it.next().getObject());
                core = this.getCoreSpace().export(Graph.class, merge);
                // root.addAll(space);
                it = core.filter(null, RDF.type, OWL.Ontology);

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            if (merge) {
                log.warn("Merging of Clerezza triple collections is only implemented one level down. Import statements will be preserved for further levels.");
                Iterator<Triple> it;
                Set<Resource> importTargets = new HashSet<Resource>();
                for (OWLOntologyID ontologyId : managedOntologies) {
                    Graph g = getOntology(ontologyId, Graph.class, false);
                    root.addAll(g);


                    it = g.filter(null, OWL.imports, null);
                    while (it.hasNext()) {
                        IRI tgt;
                        Resource r = it.next().getObject();
                        try {
                            if (r instanceof UriRef) tgt = IRI.create(((UriRef) r).getUnicodeString());
                            else if (r instanceof Literal) tgt = IRI.create(((Literal) r).getLexicalForm());
                            else tgt = IRI.create(r.toString());
                            tgt = URIUtils.sanitize(tgt);
                            importTargets.add(new UriRef(tgt.toString()));
                        } catch (Exception ex) {
                            log.error("FAILED to obtain import target from resource {}", r);
                            continue;
                        }


                    }


                    it = g.filter(null, RDF.type, OWL.Ontology);
                    while (it.hasNext()) {
                        NonLiteral ontology = it.next().getSubject();
                        log.debug("Removing all triples related to {} from {}", ontology, iri);
                        Iterator<Triple> it2 = g.filter(ontology, null, null);
                        while (it2.hasNext())
                            root.remove(it2.next());
                    }


                    /*

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     * 
     * @return
     */
    public Set<ExecutionNode> getExecutionNodes() {
        if (_executionNodes == null) {
            Graph ep;
            try {
                ep = chain.getExecutionPlan();
            } catch (ChainException e) {
                ep = null;
            }

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                                      @DefaultValue("false") @QueryParam("merge") boolean merge,
                                      @Context UriInfo uriInfo,
                                      @Context HttpHeaders headers) {
        OntologySpace space = scope.getCoreSpace();
        IRI prefix = IRI.create(getPublicBaseUri() + "ontonet/ontology/");
        Graph o = space.export(Graph.class, merge, prefix);
        ResponseBuilder rb = Response.ok(o);
        addCORSOrigin(servletContext, rb, headers);
        return rb.build();
    }

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                                        @DefaultValue("false") @QueryParam("merge") boolean merge,
                                        @Context UriInfo uriInfo,
                                        @Context HttpHeaders headers) {
        OntologySpace space = scope.getCustomSpace();
        IRI prefix = IRI.create(getPublicBaseUri() + "ontonet/ontology/");
        Graph o = space.export(Graph.class, merge, prefix);
        ResponseBuilder rb = Response.ok(o);
        addCORSOrigin(servletContext, rb, headers);
        return rb.build();
    }

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        log.debug("Ontology ID {}", ontologyId);
        ResponseBuilder rb;
        if (scope == null) rb = Response.status(NOT_FOUND);
        else {
            IRI prefix = IRI.create(getPublicBaseUri() + "ontonet/ontology/");
            Graph o = null;
            OWLOntologyID id = OntologyUtils.decode(ontologyId);
            OntologySpace spc = scope.getCustomSpace();
            if (spc != null && spc.hasOntology(id)) {
                o = spc.getOntology(id, Graph.class, merge, prefix);
            } else {

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    @Test
    public void testImportModelFromSKOS() throws Exception {
        log.info(" --- testImportModelFromSKOS --- ");
        Parser parser = Parser.getInstance();
        parser.bindParsingProvider(new JenaParserProvider());
        Graph graph = parser.parse(getClass().getResourceAsStream("/sample-scheme.skos.rdf.xml"),
            SupportedFormat.RDF_XML);
        int imported = classifier.importConceptsFromGraph(graph, OntologicalClasses.SKOS_CONCEPT,
            Properties.SKOS_BROADER);
        assertEquals(imported, 4);
        assertEquals(0, classifier.getBroaderConcepts("http://example.com/ns#someconceptscheme/100").size());

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                                            @DefaultValue("false") @QueryParam("merge") boolean merge,
                                            @Context UriInfo uriInfo,
                                            @Context HttpHeaders headers) {
        if (session == null) return Response.status(NOT_FOUND).build();
        IRI prefix = IRI.create(getPublicBaseUri() + "ontonet/session/");
        Graph o = session.getOntology(OntologyUtils.decode(ontologyId), Graph.class, merge, prefix);
        ResponseBuilder rb = (o != null) ? Response.ok(o) : Response.status(NOT_FOUND);
        addCORSOrigin(servletContext, rb, headers);
        return rb.build();
    }

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        if (session == null) rb = Response.status(NOT_FOUND);
        else {
            IRI prefix = IRI.create(getPublicBaseUri() + "ontonet/session/");
            OWLOntologyID id = OntologyUtils.decode(ontologyId);
            if (merge) {
                Graph g = session.getOntology(id, Graph.class, merge, prefix);
                rb = (g != null) ? Response.ok(g) : Response.status(NOT_FOUND);
            } else {
                OWLOntology o = session.getOntology(id, OWLOntology.class, merge, prefix);
                rb = (o != null) ? Response.ok(o) : Response.status(NOT_FOUND);
            }

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     * Assert union graph on an empty dataset
     */
    @Test
    public void testEmptyUnionGraph(){
        TcProvider provider = getInstance();
        Graph graph = provider.getGraph(UNION_GRAPH_NAME);
        Assert.assertNotNull(graph);
    }

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