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

Example 36 with SPARQLParser

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

the class MongoStatementMetadataNodeIT 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.
 */
@Test
public void simpleQueryWithBindingSetJoinOnProperty() 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);
        dao.add(statement1);
        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("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);
    } finally {
        dao.destroy();
    }
}

Example 37 with SPARQLParser

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

the class MongoStatementMetadataNodeIT method simpleQueryWithoutBindingSet.

@Test
public void simpleQueryWithoutBindingSet() 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 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<?> 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);
    } finally {
        dao.destroy();
    }
}

Example 38 with SPARQLParser

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

the class StatementMetadataOptimizerTest method testMongoMatchQuery.

@Test
public void testMongoMatchQuery() throws MalformedQueryException {
    SPARQLParser parser = new SPARQLParser();
    ParsedQuery pq = parser.parseQuery(query, null);
    TupleExpr te = pq.getTupleExpr();
    System.out.println("Parametrized query is : " + te);
    mongoOptimizer.optimize(te, null, null);
    System.out.println("Result of optimization is : " + te);
    assertEquals(expected, StatementMetadataTestUtils.getMetadataNodes(te));
}

Example 39 with SPARQLParser

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

the class RyaClientExample method prettyFormatSparql.

private static String[] prettyFormatSparql(final String sparql) throws Exception {
    final SPARQLParser parser = new SPARQLParser();
    final SPARQLQueryRenderer renderer = new SPARQLQueryRenderer();
    final ParsedQuery pq = parser.parseQuery(sparql, null);
    final String prettySparql = renderer.render(pq);
    return StringUtils.split(prettySparql, '\n');
}

Example 40 with SPARQLParser

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

the class StatementMetadataExample method prettyPrintQueryPlan.

private void prettyPrintQueryPlan(String query) throws MalformedQueryException {
    SPARQLParser parser = new SPARQLParser();
    ParsedQuery pq = parser.parseQuery(query, null);
    TupleExpr exp = pq.getTupleExpr();
    new StatementMetadataOptimizer(getConf()).optimize(exp, null, null);
    System.out.println("=================== RYA SPARQL QUERY PLAN ===================");
    for (String str : exp.toString().split("\\r?\\n")) {
        System.out.println(str);
    }
    System.out.println("=================== END RYA QUERY PLAN ======================");
}