Java Code Examples for org.eclipse.rdf4j.query.QueryResults#asList()
The following examples show how to use
org.eclipse.rdf4j.query.QueryResults#asList() .
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Example 1
| Source File: SPARQLServiceEvaluationTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 6 votes |
|
/**
* Verify that BIND clause alias from the SERVICE clause gets added to the result set.
*
* @see <a href="https://github.com/eclipse/rdf4j/issues/646">#646</a>
*/
@Test
public void testValuesBindClauseHandling() throws Exception {
String query = "select * { service <" + getRepositoryUrl(1) + "> { Bind(1 as ?val) . VALUES ?x {1 2} . } }";
try (RepositoryConnection conn = localRepository.getConnection()) {
TupleQuery tq = conn.prepareTupleQuery(query);
TupleQueryResult tqr = tq.evaluate();
assertNotNull(tqr);
assertTrue(tqr.hasNext());
List<BindingSet> result = QueryResults.asList(tqr);
assertEquals(2, result.size());
for (BindingSet bs : result) {
assertTrue(bs.hasBinding("val"));
assertEquals(1, Literals.getIntValue(bs.getValue("val"), 0));
assertTrue(bs.hasBinding("x"));
int x = Literals.getIntValue(bs.getValue("x"), 0);
assertTrue(x == 1 || x == 2);
}
}
}
Example 2
| Source File: SPARQLServiceEvaluationTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 6 votes |
|
/**
* Verify that all relevant variable names from the SERVICE clause get added to the result set when a BIND clause is
* present.
*
* @see <a href="https://github.com/eclipse/rdf4j/issues/703">#703</a>
*/
@Test
public void testVariableNameHandling() throws Exception {
String query = "select * { service <" + getRepositoryUrl(1) + "> { ?s ?p ?o . Bind(str(?o) as ?val) . } }";
// add some data to the remote endpoint (we don't care about the exact contents)
prepareTest(null, Arrays.asList("/testcases-service/data13.ttl"));
try (RepositoryConnection conn = localRepository.getConnection()) {
TupleQuery tq = conn.prepareTupleQuery(query);
TupleQueryResult tqr = tq.evaluate();
assertNotNull(tqr);
assertTrue(tqr.hasNext());
List<BindingSet> result = QueryResults.asList(tqr);
assertTrue(result.size() > 0);
for (BindingSet bs : result) {
assertTrue(bs.hasBinding("val"));
assertTrue(bs.hasBinding("s"));
assertTrue(bs.hasBinding("p"));
assertTrue(bs.hasBinding("o"));
}
}
}
Example 3
| Source File: EvaluationStrategyTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 6 votes |
|
@Test
public void testDatetimeSubtypesStrict() {
ValueFactory vf = strictRepo.getValueFactory();
try (RepositoryConnection conn = strictRepo.getConnection()) {
Literal l1 = vf.createLiteral("2009", XMLSchema.GYEAR);
Literal l2 = vf.createLiteral("2009-01", XMLSchema.GYEARMONTH);
IRI s1 = vf.createIRI("urn:s1");
IRI s2 = vf.createIRI("urn:s2");
conn.add(s1, RDFS.LABEL, l1);
conn.add(s2, RDFS.LABEL, l2);
String query = "SELECT * WHERE { ?s rdfs:label ?l . FILTER(?l >= \"2008\"^^xsd:gYear) }";
List<BindingSet> result = QueryResults.asList(conn.prepareTupleQuery(query).evaluate());
assertEquals(1, result.size());
}
}
Example 4
| Source File: EvaluationStrategyTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 6 votes |
|
@Test
public void testDatetimeSubtypesExtended() {
ValueFactory vf = extendedRepo.getValueFactory();
try (RepositoryConnection conn = extendedRepo.getConnection()) {
Literal l1 = vf.createLiteral("2009", XMLSchema.GYEAR);
Literal l2 = vf.createLiteral("2009-01", XMLSchema.GYEARMONTH);
IRI s1 = vf.createIRI("urn:s1");
IRI s2 = vf.createIRI("urn:s2");
conn.add(s1, RDFS.LABEL, l1);
conn.add(s2, RDFS.LABEL, l2);
String query = "SELECT * WHERE { ?s rdfs:label ?l . FILTER(?l >= \"2008\"^^xsd:gYear) }";
List<BindingSet> result = QueryResults.asList(conn.prepareTupleQuery(query).evaluate());
assertEquals(2, result.size());
}
}
Example 5
| Source File: ComplexSPARQLQueryTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 6 votes |
|
@Test
public void testSES1979MinMaxInf() throws Exception {
loadTestData("/testdata-query/dataset-ses1979.trig");
String query = "prefix : <http://example.org/> select (min(?o) as ?min) (max(?o) as ?max) where { ?s :float ?o }";
ValueFactory vf = conn.getValueFactory();
TupleQuery tq = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
try (TupleQueryResult evaluate = tq.evaluate();) {
List<BindingSet> result = QueryResults.asList(evaluate);
assertNotNull(result);
assertEquals(1, result.size());
assertEquals(vf.createLiteral(Float.NEGATIVE_INFINITY), result.get(0).getValue("min"));
assertEquals(vf.createLiteral(Float.POSITIVE_INFINITY), result.get(0).getValue("max"));
} catch (QueryEvaluationException e) {
e.printStackTrace();
fail(e.getMessage());
}
}
Example 6
| Source File: ComplexSPARQLQueryTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 6 votes |
|
/**
* See https://github.com/eclipse/rdf4j/issues/1018
*/
@Test
public void testBindError() throws Exception {
StringBuilder ub = new StringBuilder();
ub.append("insert data { <urn:test:subj> <urn:test:pred> _:blank }");
conn.prepareUpdate(QueryLanguage.SPARQL, ub.toString()).execute();
StringBuilder qb = new StringBuilder();
qb.append("SELECT * \n");
qb.append("WHERE { \n");
qb.append(" VALUES (?NAValue) { (<http://null>) } \n ");
qb.append(" BIND(IF(?NAValue != <http://null>, ?NAValue, ?notBoundVar) as ?ValidNAValue) \n ");
qb.append(" { ?disjClass (owl:disjointWith|^owl:disjointWith)? ?disjClass2 . }\n");
qb.append("}\n");
List<BindingSet> result = QueryResults.asList(conn.prepareTupleQuery(qb.toString()).evaluate());
assertEquals("query should return 2 solutions", 2, result.size());
}
Example 7
| Source File: ComplexSPARQLQueryTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 6 votes |
|
@Test
/**
* See https://github.com/eclipse/rdf4j/issues/1405
*/
public void testBindScope() throws Exception {
String query = "SELECT * {\n" +
" { BIND (\"a\" AS ?a) }\n" +
" { BIND (?a AS ?b) } \n" +
"}";
TupleQuery q = conn.prepareTupleQuery(query);
List<BindingSet> result = QueryResults.asList(q.evaluate());
assertEquals(1, result.size());
assertEquals(conn.getValueFactory().createLiteral("a"), result.get(0).getValue("a"));
assertNull(result.get(0).getValue("b"));
}
Example 8
| Source File: ComplexSPARQLQueryTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 6 votes |
|
/**
* https://github.com/eclipse/rdf4j/issues/1026
*/
@Test
public void testFilterExistsExternalValuesClause() throws Exception {
StringBuilder ub = new StringBuilder();
ub.append("insert data {\n");
ub.append(" <http://subj1> a <http://type> .\n");
ub.append(" <http://subj2> a <http://type> .\n");
ub.append(" <http://subj1> <http://predicate> <http://obj1> .\n");
ub.append(" <http://subj2> <http://predicate> <http://obj2> .\n");
ub.append("}");
conn.prepareUpdate(QueryLanguage.SPARQL, ub.toString()).execute();
String query = "select ?s {\n" + " ?s a* <http://type> .\n"
+ " FILTER EXISTS {?s <http://predicate> ?o}\n"
+ "} limit 100 values ?o {<http://obj1>}";
TupleQuery tq = conn.prepareTupleQuery(query);
List<BindingSet> result = QueryResults.asList(tq.evaluate());
assertEquals("single result expected", 1, result.size());
assertEquals("http://subj1", result.get(0).getValue("s").stringValue());
}
Example 9
| Source File: ComplexSPARQLQueryTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 6 votes |
|
@Test
public void testValuesClauseNamedGraph() throws Exception {
String ex = "http://example.org/";
String data = "@prefix foaf: <" + FOAF.NAMESPACE + "> .\n"
+ "@prefix ex: <" + ex + "> .\n"
+ "ex:graph1 {\n" +
" ex:Person1 rdf:type foaf:Person ;\n" +
" foaf:name \"Person 1\" . ex:Person2 rdf:type foaf:Person ;\n" +
" foaf:name \"Person 2\" . ex:Person3 rdf:type foaf:Person ;\n" +
" foaf:name \"Person 3\" .\n" +
"}";
conn.add(new StringReader(data), "", RDFFormat.TRIG);
String query = "SELECT ?person ?name ?__index \n"
+ "WHERE { "
+ " VALUES (?person ?name ?__index) { \n"
+ " (<http://example.org/Person1> UNDEF \"0\") \n"
+ " (<http://example.org/Person3> UNDEF \"2\") } \n"
+ " GRAPH <http://example.org/graph1> { ?person <http://xmlns.com/foaf/0.1/name> ?name . } }";
TupleQuery q = conn.prepareTupleQuery(query);
List<BindingSet> result = QueryResults.asList(q.evaluate());
assertThat(result).hasSize(2);
}
Example 10
| Source File: RDFStarSupportTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 6 votes |
|
@Test
public void testSparqlStar() {
Triple rdfStarTriple = vf.createTriple(bob, FOAF.NAME, nameBob);
testCon.add(rdfStarTriple, RDF.TYPE, RDF.ALT);
String query = "PREFIX foaf: <" + FOAF.NAMESPACE + ">\nSELECT DISTINCT * WHERE { <<?s foaf:name ?o>> ?b ?c. }";
List<BindingSet> result = QueryResults.asList(testCon.prepareTupleQuery(query).evaluate());
assertThat(result).hasSize(1);
BindingSet bs = result.get(0);
assertThat(bs.getValue("s")).isEqualTo(bob);
assertThat(bs.getValue("o")).isEqualTo(nameBob);
assertThat(bs.getValue("b")).isEqualTo(RDF.TYPE);
assertThat(bs.getValue("c")).isEqualTo(RDF.ALT);
}
Example 11
| Source File: ComplexSPARQLQueryTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 5 votes |
|
@Test
/**
* See https://github.com/eclipse/rdf4j/issues/1642
*/
public void testBindScopeUnion() {
ValueFactory f = conn.getValueFactory();
String query = "prefix ex: <http://example.org/> \n" +
"select * {\n" +
" bind(ex:v1 as ?v)\n" +
" bind(strafter(str(?v),str(ex:)) as ?b)\n" +
" {\n" +
" bind(?b as ?b1)\n" +
" } union {\n" +
" bind(?b as ?b2)\n" +
" }\n" +
"}";
TupleQuery q = conn.prepareTupleQuery(query);
List<BindingSet> result = QueryResults.asList(q.evaluate());
assertEquals(2, result.size());
IRI v1 = f.createIRI("http://example.org/v1");
Literal b = f.createLiteral("v1");
for (BindingSet bs : result) {
assertThat(bs.getValue("v")).isEqualTo(v1);
assertThat(bs.getValue("b1")).isNull();
assertThat(bs.getValue("b2")).isNull();
}
}
Example 12
| Source File: AbstractLuceneSailGeoSPARQLTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 5 votes |
|
@Test
public void testComplexDistanceQueryMathExpr()
throws RepositoryException, MalformedQueryException, QueryEvaluationException {
try (RepositoryConnection connection = repository.getConnection()) {
String queryStr = "prefix geo: <" + GEO.NAMESPACE + ">" + "prefix geof: <" + GEOF.NAMESPACE + ">"
+ "select ?toUri ?dist ?g where { graph ?g {?toUri geo:asWKT ?to.}"
+ " bind((geof:distance(?from, ?to, ?units) / 1000) as ?dist)" + " filter(?dist < ?range)" + " }";
TupleQuery query = connection.prepareTupleQuery(QueryLanguage.SPARQL, queryStr);
query.setBinding("from", TEST_POINT);
query.setBinding("units", GEOF.UOM_METRE);
query.setBinding("range", sail.getValueFactory().createLiteral(1.5));
List<BindingSet> result = QueryResults.asList(query.evaluate());
// check the results
Map<IRI, Literal> expected = new LinkedHashMap<>();
expected.put(SUBJECT_1, sail.getValueFactory().createLiteral(760.0 / 1000.0));
for (BindingSet bindings : result) {
System.out.println(bindings);
IRI subj = (IRI) bindings.getValue("toUri");
// check ordering
IRI expectedUri = expected.keySet().iterator().next();
assertEquals(expectedUri, subj);
Literal dist = expected.remove(subj);
assertNotNull(dist);
assertEquals(dist.doubleValue(), ((Literal) bindings.getValue("dist")).doubleValue(), ERROR);
assertNotNull(bindings.getValue("g"));
}
assertTrue(expected.isEmpty());
}
}
Example 13
| Source File: ComplexSPARQLQueryTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
@Test
public void testSES2154SubselectOptional() throws Exception {
StringBuilder ub = new StringBuilder();
ub.append("insert data { \n");
ub.append(" <urn:s1> a <urn:C> . \n");
ub.append(" <urn:s2> a <urn:C> . \n");
ub.append(" <urn:s3> a <urn:C> . \n");
ub.append(" <urn:s4> a <urn:C> . \n");
ub.append(" <urn:s5> a <urn:C> . \n");
ub.append(" <urn:s6> a <urn:C> . \n");
ub.append(" <urn:s7> a <urn:C> . \n");
ub.append(" <urn:s8> a <urn:C> . \n");
ub.append(" <urn:s9> a <urn:C> . \n");
ub.append(" <urn:s10> a <urn:C> . \n");
ub.append(" <urn:s11> a <urn:C> . \n");
ub.append(" <urn:s12> a <urn:C> . \n");
ub.append(" <urn:s1> <urn:p> \"01\" . \n");
ub.append(" <urn:s2> <urn:p> \"02\" . \n");
ub.append(" <urn:s3> <urn:p> \"03\" . \n");
ub.append(" <urn:s4> <urn:p> \"04\" . \n");
ub.append(" <urn:s5> <urn:p> \"05\" . \n");
ub.append(" <urn:s6> <urn:p> \"06\" . \n");
ub.append(" <urn:s7> <urn:p> \"07\" . \n");
ub.append(" <urn:s8> <urn:p> \"08\" . \n");
ub.append(" <urn:s9> <urn:p> \"09\" . \n");
ub.append(" <urn:s10> <urn:p> \"10\" . \n");
ub.append(" <urn:s11> <urn:p> \"11\" . \n");
ub.append(" <urn:s12> <urn:p> \"12\" . \n");
ub.append("} \n");
conn.prepareUpdate(QueryLanguage.SPARQL, ub.toString()).execute();
StringBuilder qb = new StringBuilder();
qb.append("SELECT ?s ?label\n");
qb.append("WHERE { \n");
qb.append(" ?s a <urn:C> \n .\n");
qb.append(" OPTIONAL { {SELECT ?label WHERE { \n");
qb.append(" ?s <urn:p> ?label . \n");
qb.append(" } ORDER BY ?label LIMIT 2 \n");
qb.append(" }\n");
qb.append(" }\n");
qb.append("}\n");
qb.append("ORDER BY ?s\n");
qb.append("LIMIT 10 \n");
TupleQuery tq = conn.prepareTupleQuery(QueryLanguage.SPARQL, qb.toString());
try (TupleQueryResult evaluate = tq.evaluate();) {
assertTrue("The query should return a result", evaluate.hasNext());
List<BindingSet> result = QueryResults.asList(evaluate);
assertEquals(10, result.size());
for (BindingSet bs : result) {
Literal label = (Literal) bs.getValue("label");
assertTrue("wrong label value (expected '01' or '02', but got '" + label.stringValue() + "')",
label.stringValue().equals("01") || label.stringValue().equals("02"));
}
}
}
Example 14
| Source File: ComplexSPARQLQueryTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
@Test
public void testSES1121VarNamesInOptionals() throws Exception {
// Verifying that variable names have no influence on order of optionals
// in query. See SES-1121.
loadTestData("/testdata-query/dataset-ses1121.trig");
StringBuilder query1 = new StringBuilder();
query1.append(getNamespaceDeclarations());
query1.append(" SELECT DISTINCT *\n");
query1.append(" WHERE { GRAPH ?g { \n");
query1.append(" OPTIONAL { ?var35 ex:p ?b . } \n ");
query1.append(" OPTIONAL { ?b ex:q ?c . } \n ");
query1.append(" } \n");
query1.append(" } \n");
StringBuilder query2 = new StringBuilder();
query2.append(getNamespaceDeclarations());
query2.append(" SELECT DISTINCT *\n");
query2.append(" WHERE { GRAPH ?g { \n");
query2.append(" OPTIONAL { ?var35 ex:p ?b . } \n ");
query2.append(" OPTIONAL { ?b ex:q ?var2 . } \n ");
query2.append(" } \n");
query2.append(" } \n");
TupleQuery tq1 = conn.prepareTupleQuery(QueryLanguage.SPARQL, query1.toString());
TupleQuery tq2 = conn.prepareTupleQuery(QueryLanguage.SPARQL, query2.toString());
try (TupleQueryResult result1 = tq1.evaluate(); TupleQueryResult result2 = tq2.evaluate();) {
assertNotNull(result1);
assertNotNull(result2);
List<BindingSet> qr1 = QueryResults.asList(result1);
List<BindingSet> qr2 = QueryResults.asList(result2);
// System.out.println(qr1);
// System.out.println(qr2);
// if optionals are not kept in same order, query results will be
// different size.
assertEquals(qr1.size(), qr2.size());
} catch (QueryEvaluationException e) {
e.printStackTrace();
fail(e.getMessage());
}
}
Example 15
| Source File: StrictEvaluationStrategyTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
@Test
public void testEvaluateRegexFlags() throws Exception {
String query = "SELECT ?a WHERE { "
+ "VALUES ?a { \"foo.bar\" \"foo bar\" } \n"
+ "FILTER REGEX(str(?a), \"foo.bar\")}";
ParsedQuery pq = QueryParserUtil.parseQuery(QueryLanguage.SPARQL, query, null);
CloseableIteration<BindingSet, QueryEvaluationException> result = strategy.evaluate(pq.getTupleExpr(),
new EmptyBindingSet());
List<BindingSet> bindingSets = QueryResults.asList(result);
assertThat(bindingSets).hasSize(2);
// match with q flag
query = "SELECT ?a WHERE { "
+ "VALUES ?a { \"foo.bar\" \"foo bar\" } \n"
+ "FILTER REGEX(str(?a), \"foo.bar\", \"q\")}";
pq = QueryParserUtil.parseQuery(QueryLanguage.SPARQL, query, null);
result = strategy.evaluate(pq.getTupleExpr(),
new EmptyBindingSet());
bindingSets = QueryResults.asList(result);
assertThat(bindingSets).hasSize(1);
assertThat(bindingSets.get(0).getValue("a").stringValue()).isEqualTo("foo.bar");
// match with i and q flag
query = "SELECT ?a WHERE { "
+ "VALUES ?a { \"foo.bar\" \"FOO.BAR\" \"foo bar\" } \n"
+ "FILTER REGEX(str(?a), \"foo.bar\", \"iq\")}";
pq = QueryParserUtil.parseQuery(QueryLanguage.SPARQL, query, null);
result = strategy.evaluate(pq.getTupleExpr(),
new EmptyBindingSet());
bindingSets = QueryResults.asList(result);
assertThat(bindingSets).hasSize(2);
List<String> values = bindingSets.stream().map(v -> v.getValue("a").stringValue()).collect(Collectors.toList());
assertThat(values).containsExactlyInAnyOrder("foo.bar", "FOO.BAR");
}
