Examples of com.hp.hpl.jena.rdf.model.Model

com.hp.hpl.jena.rdf.model.Model
An RDF Model.
An RDF model is a set of Statements. Methods are provided for creating resources, properties and literals and the Statements which link them, for adding statements to and removing them from a model, for querying a model and set operations for combining models.
Models may create Resources [URI nodes and bnodes]. Creating a Resource does not make the Resource visible to the model; Resources are only "in" Models if Statements about them are added to the Model. Similarly the only way to "remove" a Resource from a Model is to remove all the Statements that mention it.
When a Resource or Literal is created by a Model, the Model is free to re-use an existing Resource or Literal object with the correct values, or it may create a fresh one. [All Jena RDFNodes and Statements are immutable, so this is generally safe.]
This interface defines a set of primitive methods. A set of convenience methods which extends this interface, e.g. performing automatic type conversions and support for enhanced resources, is defined in {@link ModelCon}.

System Properties

Firewalls and Proxies
Some of the methods, e.g. the read methods, may have to traverse a firewall. This can be accomplished using the standard java method of setting system properties. To use a socks proxy, include on the java command line:

-DsocksProxyHost=[your-proxy-domain-name-or-ip-address]

To use an http proxy, include on the command line:

-DproxySet=true -DproxyHost=[your-proxy] -DproxyPort=[your-proxy-port-number]

Alternatively, these properties can be set programatically, e.g.
System.getProperties().put("proxySet","true"); System.getProperties().put("proxyHost","proxy.hostname"); System.getProperties().put("proxyPort",port_number);

    if (trustedSources.contains(defaultConfigSource)) {
      ensureDefaultConfigLoaded(store);
    }
    Graph serviceConfig = store.getGraphOverTime(trustedSources).getGraph(
        new Date());
    Model serviceConfigModel = JenaUtil.getModelFromGraph(serviceConfig);
    serviceConfigModel.write(System.out);
    ResIterator servicesIter = serviceConfigModel.listSubjectsWithProperty(RDF.type, SERVICES.Service);
    while (servicesIter.hasNext()) {
      try {
        launchService(store, servicesIter.nextResource());
      } catch (Exception e) {
        log.error("Error launching service", e);

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          Resource user = getUserByUsernameInIdentityGOT(loginData.userName);
          FCAGraph revokeGraphTmp = null;
          if (user != null) {
            log
                .info("Username already exist, removing previous password");
            Model revokeModel = ModelFactory.createDefaultModel();
            revokeModel.add(user
                .listProperties(ACCOUNTMANAGER.passwordSha1));
            revokeModel.add(user.listProperties(FOAF.mbox_sha1sum));
            revokeModel.add(user
                .listProperties(ACCOUNTMANAGER.userName));
            revokeGraphTmp = new FCAGraphImpl(revokeModel);
            // store.revokeGraph(identity, new
            // FCAGraphImpl(revokeModel), now);
          }

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  /**
   * @param store
   * 
   */
  private void ensureDefaultConfigLoaded(Store store) {
    Model cannedDefaultConfigModel = ModelFactory.createDefaultModel();
    URL cannedDefaultConfigURL = getClass()
        .getResource("defaultconfig.rdf");
    String cannedDefaultConfigURLString = cannedDefaultConfigURL.toString();
    try {
      InputStream cannedDefaultConfigInputStream = cannedDefaultConfigURL
          .openStream();
      cannedDefaultConfigModel.read(cannedDefaultConfigInputStream,
          cannedDefaultConfigURLString);
      cannedDefaultConfigInputStream.close();
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
    Resource cannedDefaultConfigResource = cannedDefaultConfigModel
        .getResource(cannedDefaultConfigURLString+"#");
    Statement cannedVersionDateStmt = cannedDefaultConfigResource
        .getRequiredProperty(DC.date);
    final Date cannedVersionDate = ((XSDDateTime) cannedVersionDateStmt
        .getLiteral().getValue()).asCalendar().getTime();

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   * @param username
   * @return
   */
  private Resource getUserByUsername(String username) {
    Graph graph = configGOT.getGraph(new Date());
    Model model = JenaUtil.getModelFromGraph(graph);
    ResIterator subjectIter = model.listSubjectsWithProperty(
        ACCOUNTMANAGER.userName, username);
    if (!subjectIter.hasNext()) {
      return null;
    }
    Resource subject = subjectIter.nextResource();

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  }


  private Resource getUserByUsernameInIdentityGOT(String username) {
    Graph graph = store.getGraphOverTime(Collections.singleton(identity))
        .getGraph(new Date());
    Model model = JenaUtil.getModelFromGraph(graph);
    ResIterator subjectIter = model.listSubjectsWithProperty(
        ACCOUNTMANAGER.userName, username);
    if (!subjectIter.hasNext()) {
      return null;
    }
    Resource subject = subjectIter.nextResource();

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    resultBuffer.append("/user/");
    resultBuffer.append(userName);
    // resultBuffer.append('#');
    String result = resultBuffer.toString();
    Model creationModel = ModelFactory.createDefaultModel();
    creationModel.createResource(result).addProperty(RDFS.comment,
        "login Link sent at " + new Date());
    store.assertGraph(new SourceImpl(result), new FCAGraphImpl(
        creationModel));
    return result;
  }

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   * @param now
   * @return
   */
  private static Set<Source> getDueSources(Graph currentConfiguration,
      Graph currentLog, Date now) {
    Model configurationModel = JenaUtil
        .getModelFromGraph(currentConfiguration);
    Model logModel = JenaUtil.getModelFromGraph(currentLog);
    Set<Source> result = new HashSet<Source>();
    ResIterator sourceIter = configurationModel.listSubjectsWithProperty(
        RDF.type, AGGREGATOR.AggregatedSource);
    while (sourceIter.hasNext()) {
      Resource aggregatedSource = sourceIter.nextResource();

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  /**
   * @param node
   * @return the Date of the last AggragationAttempt or null if none exist
   */
  private static Date getLastAggregationDate(Resource aggregatedSource) {
    Model model = aggregatedSource.getModel();
    ResIterator downloadAttempts = model
        .listSubjectsWithProperty(AGGREGATOR.aggregatedSource, aggregatedSource);
    Date result = null;
    while (downloadAttempts.hasNext()) {
      Resource downloadAtttempt = downloadAttempts.nextResource();
      Date time;

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    } catch (MalformedURLException e) {
      throw new RuntimeException(e);
    }
    Date now = new Date();


    Model logEntryModel = ModelFactory.createDefaultModel();
    Resource downloadAttempt = logEntryModel
        .createResource(AGGREGATOR.DownloadAttempt);
    downloadAttempt.addProperty(AGGREGATOR.time, new W3CDateFormat()
        .format(now), XSDDatatype.XSDdateTime);
    downloadAttempt.addProperty(AGGREGATOR.aggregatedSource, logEntryModel
        .createResource(aggregatedSource.getURIRef()));
    downloadAttempt.addProperty(AGGREGATOR.aggregator, logEntryModel
        .createResource(identity.getURIRef()));
    Graph logEntryGraph = JenaUtil.getGraphFromModel(logEntryModel, true);
    final StringWriter aggregationWarningWriter = new StringWriter();
    final StringWriter aggregationErrorWriter = new StringWriter();
    try {
      Model model = ModelFactory.createDefaultModel();
      // model.read(url.toString());
      JenaReader jenaReader = new JenaReader();
      jenaReader.setErrorHandler(new RDFErrorHandler() {


        public void error(Exception e) {

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  /**
   * @param moleculeStore 
   * @param string
   */
  private void addData(MoleculeStore moleculeStore, String modelName) {
    Model model = ModelFactory.createDefaultModel();
    model.read(StoreTest.class.getResource(modelName).toString());
    Graph graph = JenaUtil.getGraphFromModel(model , true);
    ModelReferencingDecomposition modelReferencingDecomposition = new ModelReferencingDecompositionImpl(graph);
    ReferenceGroundedDecomposition dec = new ReferenceGroundedDecompositionImpl(modelReferencingDecomposition);
    for (FunctionallyGroundedNode fgNode : dec.getFunctionallyGroundedNodes()) {
      moleculeStore.addFunctionallyGroundedNode(fgNode);

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Examples of com.hp.hpl.jena.rdf.model.Model

System Properties

Firewalls and Proxies

Related Classes of com.hp.hpl.jena.rdf.model.Model