Examples with StatementMetadata org.apache.rya.api.domain.StatementMetadata used on opensource projects

Example 26 with StatementMetadata

use of org.apache.rya.api.domain.StatementMetadata in project incubator-rya by apache.

the class MongoStatementMetadataNodeIT method simpleQueryWithoutBindingSetInvalidProperty.

/**
 * Tests if results are filtered correctly using the metadata properties. In
 * this case, the date for the ingested RyaStatement differs from the date
 * specified in the query.
 */
@Test
public void simpleQueryWithoutBindingSetInvalidProperty() throws Exception {
    MongoDBRyaDAO dao = new MongoDBRyaDAO();
    try {
        dao.setConf(conf);
        dao.init();
        StatementMetadata metadata = new StatementMetadata();
        metadata.addMetadata(new RyaURI("http://createdBy"), new RyaType("Doug"));
        metadata.addMetadata(new RyaURI("http://createdOn"), new RyaType(XMLSchema.DATE, "2017-02-15"));
        RyaStatement statement = new RyaStatement(new RyaURI("http://Joe"), new RyaURI("http://worksAt"), new RyaType("CoffeeShop"), new RyaURI("http://context"), "", metadata);
        dao.add(statement);
        SPARQLParser parser = new SPARQLParser();
        ParsedQuery pq = parser.parseQuery(query, null);
        List<StatementPattern> spList = StatementPatternCollector.process(pq.getTupleExpr());
        StatementMetadataNode<MongoDBRdfConfiguration> node = new StatementMetadataNode<>(spList, conf);
        CloseableIteration<BindingSet, QueryEvaluationException> iteration = node.evaluate(new QueryBindingSet());
        List<BindingSet> bsList = new ArrayList<>();
        while (iteration.hasNext()) {
            bsList.add(iteration.next());
        }
        Assert.assertEquals(0, bsList.size());
        dao.delete(statement, conf);
    } finally {
        dao.destroy();
    }
}

Example 27 with StatementMetadata

use of org.apache.rya.api.domain.StatementMetadata in project incubator-rya by apache.

the class MongoStatementMetadataNodeIT method simpleQueryWithBindingSetJoinPropertyToSubject.

/**
 * Tests to see if correct result is passed back when a metadata statement
 * is joined with a StatementPattern statement (i.e. a common variable
 * appears in a StatementPattern statement and a metadata statement).
 * StatementPattern statements have either rdf:subject, rdf:predicate, or
 * rdf:object as the predicate while a metadata statement is any statement
 * in the reified query whose predicate is not rdf:type and not a
 * StatementPattern predicate.
 */
@Test
public void simpleQueryWithBindingSetJoinPropertyToSubject() throws Exception {
    MongoDBRyaDAO dao = new MongoDBRyaDAO();
    try {
        dao.setConf(conf);
        dao.init();
        StatementMetadata metadata = new StatementMetadata();
        metadata.addMetadata(new RyaURI("http://createdBy"), new RyaURI("http://Joe"));
        metadata.addMetadata(new RyaURI("http://createdOn"), new RyaType(XMLSchema.DATE, "2017-01-04"));
        RyaStatement statement1 = new RyaStatement(new RyaURI("http://Joe"), new RyaURI("http://worksAt"), new RyaType("CoffeeShop"), new RyaURI("http://context"), "", metadata);
        RyaStatement statement2 = new RyaStatement(new RyaURI("http://Bob"), new RyaURI("http://worksAt"), new RyaType("HardwareStore"), new RyaURI("http://context"), "", metadata);
        dao.add(statement1);
        dao.add(statement2);
        SPARQLParser parser = new SPARQLParser();
        ParsedQuery pq = parser.parseQuery(query2, null);
        List<StatementPattern> spList = StatementPatternCollector.process(pq.getTupleExpr());
        StatementMetadataNode<MongoDBRdfConfiguration> node = new StatementMetadataNode<>(spList, conf);
        List<BindingSet> bsCollection = new ArrayList<>();
        QueryBindingSet bsConstraint1 = new QueryBindingSet();
        bsConstraint1.addBinding("y", new LiteralImpl("CoffeeShop"));
        bsConstraint1.addBinding("z", new LiteralImpl("Virginia"));
        QueryBindingSet bsConstraint2 = new QueryBindingSet();
        bsConstraint2.addBinding("y", new LiteralImpl("HardwareStore"));
        bsConstraint2.addBinding("z", new LiteralImpl("Maryland"));
        bsCollection.add(bsConstraint1);
        bsCollection.add(bsConstraint2);
        CloseableIteration<BindingSet, QueryEvaluationException> iteration = node.evaluate(bsCollection);
        QueryBindingSet expected = new QueryBindingSet();
        expected.addBinding("y", new LiteralImpl("CoffeeShop"));
        expected.addBinding("x", new URIImpl("http://Joe"));
        expected.addBinding("z", new LiteralImpl("Virginia"));
        List<BindingSet> bsList = new ArrayList<>();
        while (iteration.hasNext()) {
            bsList.add(iteration.next());
        }
        Assert.assertEquals(1, bsList.size());
        Assert.assertEquals(expected, bsList.get(0));
        dao.delete(statement1, conf);
        dao.delete(statement2, conf);
    } finally {
        dao.destroy();
    }
}

Example 28 with StatementMetadata

use of org.apache.rya.api.domain.StatementMetadata in project incubator-rya by apache.

the class MongoStatementMetadataNodeIT method simpleQueryWithBindingSetCollection.

/**
 * Tests if StatementMetadataNode joins BindingSet values correctly for
 * variables appearing as the object in one of the StatementPattern
 * statements (in the case ?x appears as the Object in the statement
 * _:blankNode rdf:object ?x). StatementPattern statements have either
 * rdf:subject, rdf:predicate, or rdf:object as the predicate.
 */
@Test
public void simpleQueryWithBindingSetCollection() throws Exception {
    MongoDBRyaDAO dao = new MongoDBRyaDAO();
    try {
        dao.setConf(conf);
        dao.init();
        StatementMetadata metadata = new StatementMetadata();
        metadata.addMetadata(new RyaURI("http://createdBy"), new RyaType("Joe"));
        metadata.addMetadata(new RyaURI("http://createdOn"), new RyaType(XMLSchema.DATE, "2017-01-04"));
        RyaStatement statement1 = new RyaStatement(new RyaURI("http://Joe"), new RyaURI("http://worksAt"), new RyaType("CoffeeShop"), new RyaURI("http://context"), "", metadata);
        RyaStatement statement2 = new RyaStatement(new RyaURI("http://Joe"), new RyaURI("http://worksAt"), new RyaType("HardwareStore"), new RyaURI("http://context"), "", metadata);
        dao.add(statement1);
        dao.add(statement2);
        SPARQLParser parser = new SPARQLParser();
        ParsedQuery pq = parser.parseQuery(query, null);
        List<StatementPattern> spList = StatementPatternCollector.process(pq.getTupleExpr());
        StatementMetadataNode<MongoDBRdfConfiguration> node = new StatementMetadataNode<>(spList, conf);
        List<BindingSet> bsCollection = new ArrayList<>();
        QueryBindingSet bsConstraint1 = new QueryBindingSet();
        bsConstraint1.addBinding("x", new LiteralImpl("CoffeeShop"));
        bsConstraint1.addBinding("z", new LiteralImpl("Virginia"));
        QueryBindingSet bsConstraint2 = new QueryBindingSet();
        bsConstraint2.addBinding("x", new LiteralImpl("HardwareStore"));
        bsConstraint2.addBinding("z", new LiteralImpl("Maryland"));
        QueryBindingSet bsConstraint3 = new QueryBindingSet();
        bsConstraint3.addBinding("x", new LiteralImpl("BurgerShack"));
        bsConstraint3.addBinding("z", new LiteralImpl("Delaware"));
        bsCollection.add(bsConstraint1);
        bsCollection.add(bsConstraint2);
        bsCollection.add(bsConstraint3);
        CloseableIteration<BindingSet, QueryEvaluationException> iteration = node.evaluate(bsCollection);
        Set<BindingSet> expected = new HashSet<>();
        QueryBindingSet expected1 = new QueryBindingSet();
        expected1.addBinding("x", new LiteralImpl("CoffeeShop"));
        expected1.addBinding("y", new LiteralImpl("Joe"));
        expected1.addBinding("z", new LiteralImpl("Virginia"));
        QueryBindingSet expected2 = new QueryBindingSet();
        expected2.addBinding("x", new LiteralImpl("HardwareStore"));
        expected2.addBinding("y", new LiteralImpl("Joe"));
        expected2.addBinding("z", new LiteralImpl("Maryland"));
        expected.add(expected1);
        expected.add(expected2);
        Set<BindingSet> bsSet = new HashSet<>();
        while (iteration.hasNext()) {
            bsSet.add(iteration.next());
        }
        Assert.assertEquals(expected, bsSet);
        dao.delete(statement1, conf);
        dao.delete(statement2, conf);
    } finally {
        dao.destroy();
    }
}

Example 29 with StatementMetadata

use of org.apache.rya.api.domain.StatementMetadata in project incubator-rya by apache.

the class MongoStatementMetadataNodeIT method simpleQueryWithBindingSet.

@Test
public void simpleQueryWithBindingSet() throws Exception {
    MongoDBRyaDAO dao = new MongoDBRyaDAO();
    try {
        dao.setConf(conf);
        dao.init();
        StatementMetadata metadata = new StatementMetadata();
        metadata.addMetadata(new RyaURI("http://createdBy"), new RyaType("Joe"));
        metadata.addMetadata(new RyaURI("http://createdOn"), new RyaType(XMLSchema.DATE, "2017-01-04"));
        RyaStatement statement1 = new RyaStatement(new RyaURI("http://Joe"), new RyaURI("http://worksAt"), new RyaType("CoffeeShop"), new RyaURI("http://context"), "", metadata);
        RyaStatement statement2 = new RyaStatement(new RyaURI("http://Joe"), new RyaURI("http://worksAt"), new RyaType("HardwareStore"), new RyaURI("http://context"), "", metadata);
        dao.add(statement1);
        dao.add(statement2);
        SPARQLParser parser = new SPARQLParser();
        ParsedQuery pq = parser.parseQuery(query, null);
        List<StatementPattern> spList = StatementPatternCollector.process(pq.getTupleExpr());
        StatementMetadataNode<MongoDBRdfConfiguration> node = new StatementMetadataNode<>(spList, conf);
        QueryBindingSet bsConstraint = new QueryBindingSet();
        bsConstraint.addBinding("x", new LiteralImpl("CoffeeShop"));
        bsConstraint.addBinding("z", new LiteralImpl("Virginia"));
        CloseableIteration<BindingSet, QueryEvaluationException> iteration = node.evaluate(bsConstraint);
        QueryBindingSet expected = new QueryBindingSet();
        expected.addBinding("x", new LiteralImpl("CoffeeShop"));
        expected.addBinding("y", new LiteralImpl("Joe"));
        expected.addBinding("z", new LiteralImpl("Virginia"));
        List<BindingSet> bsList = new ArrayList<>();
        while (iteration.hasNext()) {
            bsList.add(iteration.next());
        }
        Assert.assertEquals(1, bsList.size());
        Assert.assertEquals(expected, bsList.get(0));
        dao.delete(statement1, conf);
        dao.delete(statement2, conf);
    } finally {
        dao.destroy();
    }
}

Example 30 with StatementMetadata

use of org.apache.rya.api.domain.StatementMetadata in project incubator-rya by apache.

the class StatementMetadataExample method example2.

/**
 * This example demonstrates how a reified query can be used to return
 * metadata and that a query can contain a mix of reified metadata triple
 * patterns and non-reified triple patterns. In the query below, all patterns
 * containing _:blankNode in the subject will be grouped into a
 * {@link StatementMetadataNode}, so the resulting query plan will consist
 * of this metadata node joined along the variable ?x
 * with the non-reified pattern ?x <http://locatedWithin> <http://UnitedState>.
 * In the example below, the query returns all locations that Doug
 * travels to in the UnitedStates and the timeStamp of the triples containing
 * that information.  This example further demonstrates that any number
 * of registered metadata properties can be queried using the contextual metadata index.
 *
 * @throws Exception
 */
private void example2() throws Exception {
    String query2 = "PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> \n" + "PREFIX owl: <http://www.w3.org/2002/07/owl#> \n" + "SELECT ?x ?y \n" + "WHERE {\n" + "_:blankNode rdf:type owl:Annotation. \n" + "_:blankNode owl:annotatedSource <http://Doug>. \n" + "_:blankNode owl:annotatedProperty <http://travelsTo>. \n" + "_:blankNode owl:annotatedTarget ?x. \n" + "?x <http://locatedWithin> <http://UnitedStates> . \n" + "_:blankNode <http://hasTimeStamp> ?y }\n";
    StatementMetadata metadata = new StatementMetadata();
    metadata.addMetadata(new RyaURI("http://hasTimeStamp"), new RyaType(XMLSchema.TIME, "09:30:10.5"));
    RyaStatement statement1 = new RyaStatement(new RyaURI("http://Doug"), new RyaURI("http://travelsTo"), new RyaURI("http://NewMexico"), new RyaURI("http://context"), "", metadata);
    RyaStatement statement2 = new RyaStatement(new RyaURI("http://NewMexico"), new RyaURI("http://locatedWithin"), new RyaType("http://UnitedStates"), new RyaURI("http://context"), "", new StatementMetadata());
    // add statements for querying
    dao.add(statement1);
    dao.add(statement2);
    System.out.println("**************************************************************************");
    System.out.println("                            RUNNING EXAMPLE 2");
    System.out.println("**************************************************************************");
    System.out.println("");
    // issue query - 1 results expected
    query(query2, 1);
    // delete statements to run next example
    dao.delete(Arrays.asList(statement1, statement2).iterator(), getConf());
}