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

Example 41 with RyaStatement

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

the class MergeToolMapper method nextRyaStatement.

private static RyaStatement nextRyaStatement(final Iterator<Entry<Key, Value>> iterator, final RyaTripleContext ryaContext) {
    RyaStatement ryaStatement = null;
    if (iterator.hasNext()) {
        final Entry<Key, Value> entry = iterator.next();
        final Key key = entry.getKey();
        final Value value = entry.getValue();
        try {
            ryaStatement = createRyaStatement(key, value, ryaContext);
        } catch (final TripleRowResolverException e) {
            log.error("TripleRowResolverException encountered while creating statement", e);
        }
    }
    return ryaStatement;
}

Example 42 with RyaStatement

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

the class AccumuloStatementMetadataNodeTest method simpleQueryWithBindingSetJoinOnProperty.

/**
 * Tests if the StatementMetadataNode joins BindingSet correctly for
 * variables appearing in metadata statements. In this case, the metadata
 * statements are (_:blankNode <http://createdOn 2017-01-04 ) and
 * (_:blankNode <http://createdBy> ?y). The variable ?y appears as the
 * object in the above metadata statement and its values are joined to the
 * constraint BindingSets in the example below.
 *
 * @throws MalformedQueryException
 * @throws QueryEvaluationException
 * @throws RyaDAOException
 */
@Test
public void simpleQueryWithBindingSetJoinOnProperty() throws MalformedQueryException, QueryEvaluationException, RyaDAOException {
    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);
    dao.add(statement1);
    SPARQLParser parser = new SPARQLParser();
    ParsedQuery pq = parser.parseQuery(query, null);
    List<StatementPattern> spList = StatementPatternCollector.process(pq.getTupleExpr());
    StatementMetadataNode<AccumuloRdfConfiguration> node = new StatementMetadataNode<>(spList, conf);
    QueryBindingSet bsConstraint = new QueryBindingSet();
    bsConstraint.addBinding("x", new LiteralImpl("CoffeeShop"));
    bsConstraint.addBinding("y", new LiteralImpl("Doug"));
    CloseableIteration<BindingSet, QueryEvaluationException> iteration = node.evaluate(bsConstraint);
    List<BindingSet> bsList = new ArrayList<>();
    while (iteration.hasNext()) {
        bsList.add(iteration.next());
    }
    Assert.assertEquals(0, bsList.size());
    dao.delete(statement1, conf);
}

Example 43 with RyaStatement

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

the class AccumuloStatementMetadataNodeTest method simpleQueryWithBindingSet.

@Test
public void simpleQueryWithBindingSet() throws MalformedQueryException, QueryEvaluationException, RyaDAOException {
    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<AccumuloRdfConfiguration> 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);
}

Example 44 with RyaStatement

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

the class AccumuloStatementMetadataNodeTest method simpleQueryWithConstantContext.

/**
 * 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. Additionally,
 * this test also determines whether node uses specified context as a query
 * constraint.
 *
 * @throws MalformedQueryException
 * @throws QueryEvaluationException
 * @throws RyaDAOException
 */
@Test
public void simpleQueryWithConstantContext() throws MalformedQueryException, QueryEvaluationException, RyaDAOException {
    // query used to create StatementPatternMetadataNode
    String contextQuery = "prefix owl: <http://www.w3.org/2002/07/owl#> prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> select ?x ?y where { graph <http://context_1> {_:blankNode rdf:type owl:Annotation; owl:annotatedSource <http://Joe>; " + "owl:annotatedProperty <http://worksAt>; owl:annotatedTarget ?x; <http://createdBy> ?y; <http://createdOn> \'2017-01-04\'^^xsd:date }}";
    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_1"), "", metadata);
    RyaStatement statement2 = new RyaStatement(new RyaURI("http://Joe"), new RyaURI("http://worksAt"), new RyaType("HardwareStore"), new RyaURI("http://context_2"), "", metadata);
    dao.add(statement1);
    dao.add(statement2);
    SPARQLParser parser = new SPARQLParser();
    ParsedQuery pq = parser.parseQuery(contextQuery, null);
    List<StatementPattern> spList = StatementPatternCollector.process(pq.getTupleExpr());
    StatementMetadataNode<AccumuloRdfConfiguration> 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);
    QueryBindingSet expected1 = new QueryBindingSet();
    expected1.addBinding("x", new LiteralImpl("CoffeeShop"));
    expected1.addBinding("y", new LiteralImpl("Joe"));
    expected1.addBinding("z", new LiteralImpl("Virginia"));
    List<BindingSet> bsList = new ArrayList<>();
    while (iteration.hasNext()) {
        bsList.add(iteration.next());
    }
    Assert.assertEquals(1, bsList.size());
    Assert.assertEquals(expected1, bsList.get(0));
    dao.delete(statement1, conf);
    dao.delete(statement2, conf);
}

Example 45 with RyaStatement

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

the class AccumuloStatementMetadataNodeTest method simpleQueryWithoutBindingSet.

@Test
public void simpleQueryWithoutBindingSet() throws MalformedQueryException, QueryEvaluationException, RyaDAOException {
    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 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());
    // RyaQueryEngine<RdfCloudTripleStoreConfiguration> engine =
    // (RyaQueryEngine<>) dao.getQueryEngine();
    StatementMetadataNode<?> node = new StatementMetadataNode<>(spList, conf);
    CloseableIteration<BindingSet, QueryEvaluationException> iteration = node.evaluate(new QueryBindingSet());
    QueryBindingSet bs = new QueryBindingSet();
    bs.addBinding("x", new LiteralImpl("CoffeeShop"));
    bs.addBinding("y", new LiteralImpl("Joe"));
    List<BindingSet> bsList = new ArrayList<>();
    while (iteration.hasNext()) {
        bsList.add(iteration.next());
    }
    Assert.assertEquals(1, bsList.size());
    Assert.assertEquals(bs, bsList.get(0));
    dao.delete(statement, conf);
}