Examples with SPARQLParser org.openrdf.query.parser.sparql.SPARQLParser used on opensource projects

Example 91 with SPARQLParser

use of org.openrdf.query.parser.sparql.SPARQLParser 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 92 with SPARQLParser

use of org.openrdf.query.parser.sparql.SPARQLParser 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);
}

Example 93 with SPARQLParser

use of org.openrdf.query.parser.sparql.SPARQLParser in project incubator-rya by apache.

the class StatementMetadataExternalSetProviderTest method createSingleAccumuloMetadataNode.

@Test
public void createSingleAccumuloMetadataNode() throws MalformedQueryException {
    AccumuloRdfConfiguration conf = (AccumuloRdfConfiguration) getConf(false);
    Set<RyaURI> propertySet = new HashSet<>();
    propertySet.add(new RyaURI("http://createdBy"));
    conf.setStatementMetadataProperties(propertySet);
    StatementMetadataExternalSetProvider metaProvider = new StatementMetadataExternalSetProvider(conf);
    SPARQLParser parser = new SPARQLParser();
    ParsedQuery pq = parser.parseQuery(query, null);
    List<QueryModelNode> patterns = new ArrayList<>();
    List<StatementMetadataNode<?>> expected = new ArrayList<>();
    Set<StatementPattern> sp = StatementMetadataTestUtils.getMetadataStatementPatterns(pq.getTupleExpr(), propertySet);
    patterns.addAll(StatementPatternCollector.process(pq.getTupleExpr()));
    JoinSegment<StatementMetadataNode<?>> segment = new JoinSegment<>(new HashSet<>(patterns), patterns, new HashMap<ValueExpr, Filter>());
    List<StatementMetadataNode<?>> extSets = metaProvider.getExternalSets(segment);
    expected.add(new StatementMetadataNode<>(sp, conf));
    Assert.assertEquals(expected, extSets);
}

Example 94 with SPARQLParser

use of org.openrdf.query.parser.sparql.SPARQLParser in project incubator-rya by apache.

the class ListFluoQueries method getPrettyPrintSparql.

private static String getPrettyPrintSparql(String sparql, int indent) throws Exception {
    SPARQLParser parser = new SPARQLParser();
    ParsedQuery pq = parser.parseQuery(sparql, null);
    SPARQLQueryRenderer render = new SPARQLQueryRenderer();
    String renderedQuery = render.render(pq);
    // remove extra quotes generated by query renderer
    String[] splitRender = renderedQuery.split("\"\"\"");
    StringBuilder builder = new StringBuilder();
    for (String s : splitRender) {
        builder.append(s).append("\"");
    }
    builder.replace(builder.length() - 1, builder.length(), "");
    // add indent to all lines following newline char
    String[] newLineRender = builder.toString().split("\n");
    builder = new StringBuilder();
    String prefix = getVariableIndent(indent);
    for (int i = 0; i < newLineRender.length; i++) {
        if (i != 0) {
            builder.append(prefix);
        }
        builder.append(newLineRender[i]).append("\n");
    }
    return builder.toString();
}

Example 95 with SPARQLParser

use of org.openrdf.query.parser.sparql.SPARQLParser in project incubator-rya by apache.

the class ProjectionEvaluatorTest method getProjection.

/**
 * Get the first {@link Projection} node from a SPARQL query.
 *
 * @param sparql - The query that contains a single Projection node.
 * @return The first {@link Projection} that is encountered.
 * @throws Exception The query could not be parsed.
 */
@Nullable
public static Projection getProjection(final String sparql) throws Exception {
    requireNonNull(sparql);
    final AtomicReference<Projection> projection = new AtomicReference<>();
    final ParsedQuery parsed = new SPARQLParser().parseQuery(sparql, null);
    parsed.getTupleExpr().visit(new QueryModelVisitorBase<Exception>() {

        @Override
        public void meet(final Projection node) throws Exception {
            projection.set(node);
        }
    });
    return projection.get();
}