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

com.hp.hpl.jena.rdf.model.InfModel
An extension to the normal Model interface that supports access to any underlying inference capability.
In Jena the primary use of inference is to generate additional entailments from a set of RDF data. These entailments just appear as additional RDF data in the inferred model and are accessed through the normal API. For example, if an inference engine can determine the class of a resource "foo" is "fooClass" then all Model API calls such as listStatements and getProperty should act as if the triple:
```
 foo rdf:type fooClass . 
```
were in the data.

A few reasoner services cannot be made directly available in this way and the InfGraph extension gives access to these - specifically access to validation/consistency checking, derivation traces and find-with-posits.

Note that this interface, and especially the interface onto ValidityReports and Derivations are not yet stable.

        Statement asserted = base.createStatement(r, p, l);
        r.addProperty(p, l);
        
        List<Rule> rules = Rule.parseRules("(?r eg:p ?v) -> (?v eg:q ?r).");
        GenericRuleReasoner reasoner = new GenericRuleReasoner(rules);
        InfModel inf = ModelFactory.createInfModel(reasoner, base);
        TestUtil.assertIteratorValues(this, inf.listStatements(), new Statement[]{asserted});
        
        Model deductions = inf.getDeductionsModel();
        TestUtil.assertIteratorValues(this, deductions.listStatements(), new Statement[]{});
        
        Graph safeGraph = deductions.getGraph();
        assertTrue(safeGraph instanceof SafeGraph);

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            // properties out of rdfs:domain and rdfs:range properties
            // A simple rdfs reasoner is enough for this task.
            Model schema = ModelFactory.createDefaultModel();
            schema.read(schemaURL);
            Reasoner reasoner = ReasonerRegistry.getRDFSSimpleReasoner().bindSchema(schema);
            InfModel inf = ModelFactory.createInfModel(reasoner, config);


            // If we do inferencing, we can easily check for consistency.
            ValidityReport reports = inf.validate();
            if (!reports.isValid())
            {
                StringBuilder sb = new StringBuilder();
                sb.append("The configuration of the MetadataConverterPlugin is ");
                sb.append("not valid regarding the schema (");

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    try {
      String aOnt = "file:" + PelletTestSuite.base + "misc/ticket-247-test-case.rdf";
  
      PelletReasoner aReasoner = (PelletReasoner) PelletReasonerFactory.theInstance().create();
  
      InfModel aModel = ModelFactory.createInfModel( aReasoner, ModelFactory.createDefaultModel() );
  
      aModel.read( aOnt );
  
      String aQuery = "PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n" +
              "PREFIX owl: <http://www.w3.org/2002/07/owl#>\n" +
              "PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n" +
              "SELECT ?x WHERE { ?y rdfs:comment ?x . }";

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    // Test case for the bug reproted in #277
    String aOnt = "file:" + PelletTestSuite.base + "misc/ticket-277-test-case.rdf";


    PelletReasoner aReasoner = (PelletReasoner) PelletReasonerFactory.theInstance().create();


    InfModel aModel = ModelFactory.createInfModel( aReasoner, ModelFactory.createDefaultModel() );


    aModel.read( aOnt );


    String aQuery = "PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n" +
            "PREFIX owl: <http://www.w3.org/2002/07/owl#>\n" +
            "PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n" +
            "SELECT ?y ?foo WHERE { ?y rdf:type ?x . }";

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      String aOnt = "file:" + PelletTestSuite.base + "misc/ticket-276-test-case.rdf";


      // Test case for #276
      PelletReasoner aReasoner = (PelletReasoner) PelletReasonerFactory.theInstance().create();


      InfModel aModel = ModelFactory.createInfModel( aReasoner, ModelFactory.createDefaultModel() );


      aModel.read( aOnt );


      String aQuery = "PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n" +
              "PREFIX owl: <http://www.w3.org/2002/07/owl#>\n" +
              "PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n" +
              "SELECT ?x WHERE { ?y rdf:type owl:Thing . ?y rdfs:comment ?x . }";

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    // Test case for #248
    String aOnt = "file:" + PelletTestSuite.base + "misc/pizza.owl";


    PelletReasoner aReasoner = (PelletReasoner) PelletReasonerFactory.theInstance().create();


    InfModel aModel = ModelFactory.createInfModel( aReasoner, ModelFactory.createDefaultModel() );


    aModel.read( aOnt );


    String aQuery = "PREFIX xsd:<http://www.w3.org/2001/XMLSchema#>\n" +
            "PREFIX rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n" +
            "PREFIX rdfs:<http://www.w3.org/2000/01/rdf-schema#>\n" +
            "PREFIX owl:<http://www.w3.org/2002/07/owl#>\n" +

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    // Test case for #196
    String aOnt = "file:" + PelletTestSuite.base + "misc/pizza.owl";


    PelletReasoner aReasoner = (PelletReasoner) PelletReasonerFactory.theInstance().create();


    InfModel aModel = ModelFactory.createInfModel( aReasoner, ModelFactory.createDefaultModel() );


    aModel.read( aOnt );


    String aQuery = "PREFIX xsd:<http://www.w3.org/2001/XMLSchema#>\n" +
            "PREFIX rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n" +
            "PREFIX rdfs:<http://www.w3.org/2000/01/rdf-schema#>\n" +
            "PREFIX owl:<http://www.w3.org/2002/07/owl#>\n" +

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  @Test
  public void test306() {
    String aOnt = "file:" + PelletTestSuite.base + "misc/longitude.ttl";
    
    PelletReasoner aReasoner = (PelletReasoner) PelletReasonerFactory.theInstance().create();
    InfModel aModel = ModelFactory.createInfModel( aReasoner, ModelFactory.createDefaultModel() );


    aModel.read( aOnt, "N3" );
    String aQuery = "PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n"
        + "PREFIX rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n"
        + "PREFIX owl: <http://www.w3.org/2002/07/owl#>\n"
        + "PREFIX mon: <http://www.semwebtech.org/mondial/10/meta#>\n"
        + "PREFIX xsd:  <http://www.w3.org/2001/XMLSchema#>\n" 
        + "PREFIX : <foo://bla/>\n"
        + "SELECT ?v0 WHERE\n" + "{ ?v0 rdf:type :EasternHemispherePlace. }\n";
    
    QueryExecution qe = SparqlDLExecutionFactory.create( QueryFactory.create(aQuery), aModel );


    Resource berlin = aModel.getResource( "foo://bla/Berlin" );
    ResultSet results = qe.execSelect();
    assertTrue( results.hasNext() );
    assertTrue( berlin.equals( results.next().getResource("v0") ) );
    assertFalse( results.hasNext() );
  }

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  @Test
  public void test253() {
    String aOnt = "file:" + PelletTestSuite.base + "misc/longitude2.ttl";
    
    PelletReasoner aReasoner = (PelletReasoner) PelletReasonerFactory.theInstance().create();
    InfModel aModel = ModelFactory.createInfModel( aReasoner, ModelFactory.createDefaultModel() );


    aModel.read( aOnt, "N3" );
    String aQuery = "PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n"
        + "PREFIX rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n"
        + "PREFIX owl: <http://www.w3.org/2002/07/owl#>\n"
        + "PREFIX mon: <http://www.semwebtech.org/mondial/10/meta#>\n"
        + "PREFIX xsd:  <http://www.w3.org/2001/XMLSchema#>\n" 
        + "PREFIX : <foo://bla/>\n"
        + "SELECT ?v0 WHERE\n" + "{ ?v0 rdf:type :EasternHemispherePlace. }\n";
    
    QueryExecution qe = SparqlDLExecutionFactory.create( QueryFactory.create(aQuery), aModel );


    Resource berlin = aModel.getResource( "foo://bla/Berlin" );
    ResultSet results = qe.execSelect();
    assertTrue( results.hasNext() );
    assertTrue( berlin.equals( results.next().getResource("v0") ) );
    assertFalse( results.hasNext() );
  }

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      ARQ.getContext().set(ARQ.optFilterPlacement, false);
      
      String aOnt = "file:" + PelletTestSuite.base + "misc/ticket-210-test-case.owl";
      
      PelletReasoner aReasoner = (PelletReasoner) PelletReasonerFactory.theInstance().create();
      InfModel aModel = ModelFactory.createInfModel( aReasoner, ModelFactory.createDefaultModel() );
  
      aModel.read(aOnt);
      String aQuery = "PREFIX : <http://www.semanticweb.org/ontologies/2010/5/ticket-210-test-case.owl#>\n"    
        + "PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n"
        + "PREFIX owl: <http://www.w3.org/2002/07/owl#>\n"
        + "SELECT ?x\n"
        + "WHERE {\n"

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