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


        TripleCollection triples = createTestTripleCollection(createTestTriple());


        TcProvider provider = getInstance();
        UriRef name1 = new UriRef("http://myGraph1");
        Graph graph = provider.createGraph(name1, triples);


        UriRef name2 = new UriRef("http://myGraph2");
        Graph secondGraph = provider.createGraph(name2, triples);


        //if we delete graph with name1, the second graph should still be there
        provider.deleteTripleCollection(name1);


        provider = getInstance();
        Graph firstGraph = provider.getGraph(name2);
        assertNotNull(firstGraph);


        //check second name is not there
        boolean expThrown = false;


        try {
            Graph g = provider.getGraph(name1);
        } catch(NoSuchEntityException nses) {
            expThrown = true;
        }


        assertTrue(expThrown);

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    @Test
    public void testGetTriplesGraph() throws Exception {
        TcProvider provider = getInstance();
        Graph graph = provider.createGraph(graphUriRef,
                createTestTripleCollection(createTestTriple()));
        TripleCollection tc = provider.getTriples(graphUriRef);
        assertNotNull(tc);
    }

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  @Test
  public void serviceExecutionTest() {
    try {
      OpenNLPNERAOService service = new OpenNLPNERAOService();
      Graph graph = service.extractPersons(getClass().getResource("/ner_test_page.html").toURI().toString());
      assertNotNull(graph);
    } catch (Exception e) {
      fail(e.getLocalizedMessage());
    }
  }

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  @Path("post")
  public void postDiscobit(@QueryParam("graph") UriRef graphUri,
      @FormParam("assert") String assertedString,
      @FormParam("revoke") String revokedString) {
    MessageBodyReader<Graph> graphReader = providers.getMessageBodyReader(Graph.class, Graph.class, null,rdfXmlType);
    final Graph assertedGraph;
    final Graph revokedGraph;
    try {
      assertedGraph = graphReader.readFrom(Graph.class, Graph.class, new Annotation[0], rdfXmlType, null, new ByteArrayInputStream(assertedString.getBytes()));
      revokedGraph = graphReader.readFrom(Graph.class, Graph.class, new Annotation[0], rdfXmlType, null, new ByteArrayInputStream(revokedString.getBytes()));
    } catch (IOException ex) {
      logger.error("reading graph {}", ex);

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    } catch (IOException ex) {
      throw new RuntimeException(ex);
    }
    MGraph mGraph = getMGraph(tcDir);
    mGraph.addAll(triples);
    Graph result = mGraph.getGraph();
    
    graphMap.put(name, result);
    return result;
  }

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        bundle.getSymbolicName());
  }


  private MGraph getDocumentationMGraph(URL docUrl, String symbolicName) {
    try {
      Graph parsedGraph = parser.parse(docUrl.openStream(),
          SupportedFormat.N_TRIPLE);
      UriRef baseUri = config.getDefaultBaseUri();
      return new SimpleMGraph(new UriMutatorIterator(
          parsedGraph.iterator(), baseUri.getUnicodeString(), symbolicName));
    } catch (IOException ex) {
      logger.warn("Cannot parse documentation at URL: {}", docUrl);
      throw new RuntimeException(ex);
    }
  }

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      System.out.println("clazz : " + clazz);
      System.out.println("clazz.getMethods().length : " + clazz.getMethods().length);
      //System.out.println("clazz : "+clazz.n);
      System.out.println("processing " + ntFile);
      InputStream in = null;
      Graph documentationGraph = null;
      try {
        in = new FileInputStream(ntFile);
        documentationGraph = parser.parse(in, SupportedFormat.N_TRIPLE);
      } finally {
        in.close();

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  public void testCreateGraph() {
    TcProvider simpleTcmProvider = getInstance();
    MGraph mGraph = new SimpleMGraph();
    mGraph.add(new TripleImpl(uriRefA, uriRefA, uriRefA));


    Graph createdGraph = simpleTcmProvider.createGraph(uriRefA, mGraph);


    Iterator<Triple> iteratorInput = mGraph.iterator();
    Iterator<Triple> iteratorCreated = createdGraph.iterator();
    assertEquals(iteratorInput.next(), iteratorCreated.next());
    assertFalse(iteratorCreated.hasNext());


    try {
      simpleTcmProvider.createGraph(uriRefA, mGraph);

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    simpleTcmProvider.createGraph(uriRefB, mGraph);
    mGraph = new SimpleMGraph();
    mGraph.add(new TripleImpl(uriRefB1, uriRefB1, uriRefB1));
    simpleTcmProvider.createGraph(uriRefB1, mGraph);


    Graph bGraph = simpleTcmProvider.getGraph(uriRefB);
    Iterator<Triple> iterator = bGraph.iterator();
    assertEquals(new TripleImpl(uriRefB, uriRefB, uriRefB), iterator.next());
    assertFalse(iterator.hasNext());
  }

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  @Test
  public void testDeleteEntity() {
    TcProvider simpleTcmProvider = getInstance();
    MGraph mGraph = new SimpleMGraph();
    mGraph.add(new TripleImpl(uriRefA, uriRefA, uriRefA));
    Graph graph = mGraph.getGraph();
    simpleTcmProvider.createGraph(uriRefA, graph);
    simpleTcmProvider.createGraph(uriRefC, graph);


    simpleTcmProvider.deleteTripleCollection(uriRefA);
    try {
      simpleTcmProvider.getGraph(uriRefA);
      assertTrue(false);
    } catch (NoSuchEntityException e) {
      assertTrue(true);
    }


    // Check that graph is still available under uriRefC
    Graph cGraph = simpleTcmProvider.getGraph(uriRefC);
    assertNotNull(cGraph);
  }

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