Java Code Examples for org.openrdf.repository.RepositoryConnection#setAutoCommit()
The following examples show how to use
org.openrdf.repository.RepositoryConnection#setAutoCommit() .
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Example 1
| Source File: SampleCode.java From database with GNU General Public License v2.0 | 6 votes |
|
/**
* Add a statement to a repository.
*
* @param repo
* @throws Exception
*/
public void loadSomeData(Repository repo) throws Exception {
RepositoryConnection cxn = repo.getConnection();
cxn.setAutoCommit(false);
try {
Resource s = new URIImpl("http://www.bigdata.com/rdf#Mike");
URI p = new URIImpl("http://www.bigdata.com/rdf#loves");
Value o = new URIImpl("http://www.bigdata.com/rdf#RDF");
Statement stmt = new StatementImpl(s, p, o);
cxn.add(stmt);
cxn.commit();
} catch (Exception ex) {
cxn.rollback();
throw ex;
} finally {
// close the repository connection
cxn.close();
}
}
Example 2
| Source File: TestTicket632.java From database with GNU General Public License v2.0 | 6 votes |
|
private void executeQuery(final URI serviceUri, final SailRepository repo) throws RepositoryException, MalformedQueryException, QueryEvaluationException, RDFParseException, IOException, RDFHandlerException {
try {
repo.initialize();
final RepositoryConnection conn = repo.getConnection();
final ValueFactory vf = conn.getValueFactory();
conn.setAutoCommit(false);
try {
final String query = "SELECT ?x { SERVICE <" + serviceUri.stringValue() + "> { ?x <u:1> ?bool1 } }";
final TupleQuery q = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
q.setBinding("bool1", vf.createLiteral(true));
final TupleQueryResult tqr = q.evaluate();
try {
tqr.hasNext();
} finally {
tqr.close();
}
} finally {
conn.close();
}
} finally {
repo.shutDown();
}
}
Example 3
| Source File: TestNoExceptions.java From database with GNU General Public License v2.0 | 6 votes |
|
private void executeQuery(final SailRepository repo, final String query)
throws RepositoryException, MalformedQueryException,
QueryEvaluationException, RDFParseException, IOException,
RDFHandlerException {
try {
repo.initialize();
final RepositoryConnection conn = repo.getConnection();
conn.setAutoCommit(false);
try {
final ValueFactory vf = conn.getValueFactory();
conn.commit();
TupleQuery tq = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
TupleQueryResult tqr = tq.evaluate();
tqr.close();
} finally {
conn.close();
}
} finally {
repo.shutDown();
}
}
Example 4
| Source File: TestTicket2043b.java From database with GNU General Public License v2.0 | 5 votes |
|
public void testBug() throws Exception {
final BigdataSail sail = getSail();
try {
BigdataSailRepository repo = new BigdataSailRepository(sail);
try {
repo.initialize();
final RepositoryConnection conn = repo.getConnection();
conn.setAutoCommit(false);
try {
conn.add(getClass().getResourceAsStream("TestTicket2043.n3"), "",
RDFFormat.TURTLE);
conn.commit();
// Check existing int literal
executeQuery(conn, "1", 2);
// Check not existing int literal
executeQuery(conn, "2", 0);
// Check not existing plain literal
executeQuery(conn, "\"3\"", 0);
// Check not existing boolean literal
executeQuery(conn, "true", 0);
// Check not existing datetime literal
executeQuery(conn, "\"2000-01-01T00:00:00Z\"^^xsd:dateTime", 0);
} finally {
conn.close();
}
} finally {
repo.shutDown();
}
} finally {
sail.__tearDownUnitTest();
}
}
Example 5
| Source File: TestTicket275.java From database with GNU General Public License v2.0 | 5 votes |
|
private void executeQuery(final SailRepository repo)
throws RepositoryException, MalformedQueryException,
QueryEvaluationException, RDFParseException, IOException {
try {
repo.initialize();
final RepositoryConnection conn = repo.getConnection();
conn.setAutoCommit(false);
try {
conn.add(getClass().getResourceAsStream("TestTicket275.ttl"), "",
RDFFormat.TURTLE);
conn.commit();
final String query = "SELECT ?lookup WHERE { ?lookup <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <os:class/Lookup> . ?lookup <os:prop/lookup/majorType> ?majorType . OPTIONAL{?lookup <os:prop/lookup/minorType> ?minorType}. FILTER(STR(?majorType) = ?argMajorType). FILTER(!bound(?minorType))}";
final TupleQuery q = conn.prepareTupleQuery(QueryLanguage.SPARQL,
query);
q.setBinding("argMajorType", conn.getValueFactory()
.createLiteral("majoor"));
final TupleQueryResult tqr = q.evaluate();
while (tqr.hasNext()) {
final Set<String> bindingNames = tqr.next().getBindingNames();
if(log.isInfoEnabled())
log.info("bindingNames="+bindingNames);
}
tqr.close();
} finally {
conn.close();
}
} finally {
repo.shutDown();
}
}
Example 6
| Source File: TestTicket1681.java From database with GNU General Public License v2.0 | 5 votes |
|
private void executeQuery(final SailRepository repo)
throws RepositoryException, MalformedQueryException,
QueryEvaluationException, RDFParseException, IOException {
try {
repo.initialize();
final RepositoryConnection conn = repo.getConnection();
conn.setAutoCommit(false);
try {
conn.add(getClass().getResourceAsStream("TestTicket1681.nt"), "",
RDFFormat.TURTLE);
conn.commit();
final String query = "SELECT * WHERE { ?s <http://p> ?o . FILTER (?o IN (<http://o2>, <http://o3>) ) }";
final TupleQuery q = conn.prepareTupleQuery(QueryLanguage.SPARQL,
query);
final TupleQueryResult tqr = q.evaluate();
int cnt = 0;
while (tqr.hasNext()) {
final Set<String> bindingNames = tqr.next().getBindingNames();
cnt++;
if(log.isInfoEnabled())
log.info("bindingNames="+bindingNames);
}
tqr.close();
assertEquals(1, cnt);
} finally {
conn.close();
}
} finally {
repo.shutDown();
}
}
Example 7
| Source File: TestRollbacks.java From database with GNU General Public License v2.0 | 5 votes |
|
public Void call() throws Exception {
// if (writer) {
// // Initial sleep on the writer.
// Thread.sleep(500);
// }
RepositoryConnection conn = null;
try {
int counter2 = 0;
conn = repo.getConnection();
conn.setAutoCommit(false);
while (firstCause.get() == null && counter < maxCounter) {
if (writer)
writer(conn);
else
reader(conn);
/*
* Note: If connection obtained/closed within the loop then
* the query is more likely to have some data to visit
* within its tx view.
*/
if (++counter2 % 4 == 0) {
conn.close();
conn = repo.getConnection();
conn.setAutoCommit(false);
}
// conn = repo.getConnection();
// conn.setAutoCommit(false);
// conn.close();
}
return (Void) null;
} catch (Throwable t) {
firstCause.compareAndSet(null/* expect */, t);
throw new RuntimeException(t);
} finally {
if (conn != null)
conn.close();
}
}
Example 8
| Source File: TestTicket348.java From database with GNU General Public License v2.0 | 5 votes |
|
private void executeTest(final SailRepository repo)
throws RepositoryException, MalformedQueryException,
QueryEvaluationException, RDFParseException, RDFHandlerException,
IOException {
try {
repo.initialize();
final RepositoryConnection conn = repo.getConnection();
try {
conn.setAutoCommit(false);
final ValueFactory vf = conn.getValueFactory();
final URI uri = vf.createURI("os:/elem/example");
// run a query which looks for a statement and then adds it if it is not found.
addDuringQueryExec(conn, uri, RDF.TYPE, vf.createURI("os:class/Clazz"));
// now try to export the statements.
final RepositoryResult<Statement> stats = conn.getStatements(null, null, null, false);
try {
// materialize the newly added statement.
stats.next();
} catch (RuntimeException e) {
fail(e.getLocalizedMessage(), e); // With Bigdata this fails
} finally {
stats.close();
}
conn.rollback(); // discard the result (or commit, but do something to avoid a logged warning from Sesame).
} finally {
conn.close();
}
} finally {
repo.shutDown();
}
}
Example 9
| Source File: TestTicket2043.java From database with GNU General Public License v2.0 | 5 votes |
|
public void testBug() throws Exception {
final BigdataSail sail = getSail();
try {
BigdataSailRepository repo = new BigdataSailRepository(sail);
try {
repo.initialize();
final RepositoryConnection conn = repo.getConnection();
conn.setAutoCommit(false);
try {
conn.add(getClass().getResourceAsStream("TestTicket2043.n3"), "",
RDFFormat.TURTLE);
conn.commit();
// Check existing int literal
executeQuery(conn, "1", 2);
// Check not existing int literal
executeQuery(conn, "2", 0);
// Check not existing plain literal
executeQuery(conn, "\"3\"", 0);
// Check not existing boolean literal
executeQuery(conn, "true", 0);
// Check not existing datetime literal
executeQuery(conn, "\"2000-01-01T00:00:00Z\"^^xsd:dateTime", 0);
} finally {
conn.close();
}
} finally {
repo.shutDown();
}
} finally {
sail.__tearDownUnitTest();
}
}
Example 10
| Source File: TestTicket967.java From database with GNU General Public License v2.0 | 5 votes |
|
private void executeTest(final SailRepository repo)
throws RepositoryException, MalformedQueryException,
QueryEvaluationException, RDFParseException, RDFHandlerException,
IOException {
try {
repo.initialize();
final RepositoryConnection conn = repo.getConnection();
try {
conn.setAutoCommit(false);
final ValueFactory vf = conn.getValueFactory();
final URI uri = vf.createURI("os:/elem/example");
// run a query which looks for a statement and then adds it if it is not found.
addDuringQueryExec(conn, uri, RDF.TYPE, vf.createURI("os:class/Clazz"));
// now try to export the statements.
final RepositoryResult<Statement> stats = conn.getStatements(null, null, null, false);
try {
// materialize the newly added statement.
stats.next();
} catch (RuntimeException e) {
fail(e.getLocalizedMessage(), e); // With Bigdata this fails
} finally {
stats.close();
}
conn.rollback(); // discard the result (or commit, but do something to avoid a logged warning from Sesame).
} finally {
conn.close();
}
} finally {
repo.shutDown();
}
}
Example 11
| Source File: SampleCode.java From database with GNU General Public License v2.0 | 5 votes |
|
/**
* Demonstrate execution of a free-text query.
*
* @param repo
* @throws Exception
*/
public boolean executeFreeTextQuery(Repository repo) throws Exception {
if (((BigdataSailRepository) repo).getDatabase().getLexiconRelation()
.getSearchEngine() == null) {
/*
* Only if the free text index exists.
*/
return false;
}
RepositoryConnection cxn = repo.getConnection();
cxn.setAutoCommit(false);
try {
cxn.add(new URIImpl("http://www.bigdata.com/A"), RDFS.LABEL,
new LiteralImpl("Yellow Rose"));
cxn.add(new URIImpl("http://www.bigdata.com/B"), RDFS.LABEL,
new LiteralImpl("Red Rose"));
cxn.add(new URIImpl("http://www.bigdata.com/C"), RDFS.LABEL,
new LiteralImpl("Old Yellow House"));
cxn.add(new URIImpl("http://www.bigdata.com/D"), RDFS.LABEL,
new LiteralImpl("Loud Yell"));
cxn.commit();
} catch (Exception ex) {
cxn.rollback();
throw ex;
} finally {
// close the repository connection
cxn.close();
}
String query = "select ?x where { ?x <"+BDS.SEARCH+"> \"Yell\" . }";
executeSelectQuery(repo, query, QueryLanguage.SPARQL);
// will match A, C, and D
return true;
}
Example 12
| Source File: TestSesameFilters.java From database with GNU General Public License v2.0 | 4 votes |
|
public void testRegex() throws Exception {
// final Sail sail = new MemoryStore();
// sail.initialize();
// final Repository repo = new SailRepository(sail);
final BigdataSail sail = getSail();
sail.initialize();
final BigdataSailRepository repo = new BigdataSailRepository(sail);
final RepositoryConnection cxn = repo.getConnection();
cxn.setAutoCommit(false);
try {
final ValueFactory vf = sail.getValueFactory();
/*
* Create some terms.
*/
final URI mike = vf.createURI(BD.NAMESPACE + "mike");
final URI bryan = vf.createURI(BD.NAMESPACE + "bryan");
final URI person = vf.createURI(BD.NAMESPACE + "Person");
final Literal l1 = vf.createLiteral("mike personick");
final Literal l2 = vf.createLiteral("bryan thompson");
/*
* Create some statements.
*/
cxn.add(mike, RDF.TYPE, person);
cxn.add(mike, RDFS.LABEL, l1);
cxn.add(bryan, RDF.TYPE, person);
cxn.add(bryan, RDFS.LABEL, l2);
/*
* Note: The either flush() or commit() is required to flush the
* statement buffers to the database before executing any operations
* that go around the sail.
*/
cxn.commit();
{
String query =
"prefix bd: <"+BD.NAMESPACE+"> " +
"prefix rdf: <"+RDF.NAMESPACE+"> " +
"prefix rdfs: <"+RDFS.NAMESPACE+"> " +
"select * " +
"where { " +
" ?s rdf:type bd:Person . " +
" ?s rdfs:label ?label . " +
" FILTER regex(?label, \"mike\") . " +
"}";
final SailTupleQuery tupleQuery = (SailTupleQuery)
cxn.prepareTupleQuery(QueryLanguage.SPARQL, query);
tupleQuery.setIncludeInferred(false /* includeInferred */);
final Collection<BindingSet> answer = new LinkedList<BindingSet>();
answer.add(createBindingSet(
new BindingImpl("s", mike),
new BindingImpl("label", l1)
));
final TupleQueryResult result = tupleQuery.evaluate();
compare(result, answer);
}
} finally {
cxn.close();
sail.shutDown();
}
}
Example 13
| Source File: StressTest_ClosedByInterrupt_RW.java From database with GNU General Public License v2.0 | 4 votes |
|
@Override
public void run() {
RepositoryConnection conn = null;
TupleQueryResult result = null;
int loop = 0;
while (stopRequested == false) {
try {
System.out.println("[Read ] snooze");
snooze(MILLIS_BETWEEN_QUERY_BURSTS);
System.out.println("[Read ] enter loop " + loop);
for (int invocation = 0; invocation < NUM_SELECTS; ++invocation) {
conn = repo.getReadOnlyConnection();
conn.setAutoCommit(false);
final String sparql = "SELECT ?s WHERE { ?s ?p ?o } LIMIT "
+ NUM_STATEMENTS_PER_SELECT;
final TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, sparql);
result = query.evaluate();
final List<String> duds = new ArrayList<String>();
while (result.hasNext()) {
final BindingSet bindingSet = result.next();
for (final Iterator<Binding> i = bindingSet.iterator(); i.hasNext();) {
final Binding b = i.next();
if (b.getValue() != null) {
duds.add(b.getValue().stringValue());
}
}
}
result.close();
result = null;
conn.close();
conn = null;
}
} catch (Throwable t) {
printError("Read Only threw in loop " + loop, t);
} finally {
closeNoException(result);
closeNoException(conn);
}
System.out.println("[Read ] leave loop " + loop);
++loop;
}
}
Example 14
| Source File: TestMaterialization.java From database with GNU General Public License v2.0 | 4 votes |
|
public void testXsdStr() throws Exception {
final BigdataSail sail = getSail();
try {
sail.initialize();
final BigdataSailRepository repo = new BigdataSailRepository(sail);
final RepositoryConnection cxn = repo.getConnection();
try {
cxn.setAutoCommit(false);
final ValueFactory vf = sail.getValueFactory();
/*
* Create some terms.
*/
final URI X = vf.createURI(BD.NAMESPACE + "X");
final Literal label = vf.createLiteral("John");
/*
* Create some statements.
*/
cxn.add(X, RDF.TYPE, RDFS.RESOURCE);
cxn.add(X, RDFS.LABEL, label);
/*
* Note: The either flush() or commit() is required to flush the
* statement buffers to the database before executing any operations
* that go around the sail.
*/
cxn.commit();
if (log.isInfoEnabled()) {
log.info(((BigdataSailRepositoryConnection) cxn).getTripleStore().dumpStore());
}
{
String query =
"select * where { ?s ?p ?o . FILTER (xsd:string(?o) = \""+RDF.PROPERTY+"\"^^xsd:string) }";
final SailTupleQuery tupleQuery = (SailTupleQuery)
cxn.prepareTupleQuery(QueryLanguage.SPARQL, query);
tupleQuery.setIncludeInferred(true /* includeInferred */);
if (log.isInfoEnabled()) {
log.info(query);
final TupleQueryResult result = tupleQuery.evaluate();
if (result.hasNext()) {
while (result.hasNext())
log.info(result.next());
} else {
fail("expecting result from the vocab");
}
}
// final Collection<BindingSet> answer = new LinkedList<BindingSet>();
// answer.add(createBindingSet(
// new BindingImpl("a", paul),
// new BindingImpl("b", mary)
// ));
// answer.add(createBindingSet(
// new BindingImpl("a", brad),
// new BindingImpl("b", john)
// ));
//
// final TupleQueryResult result = tupleQuery.evaluate();
// compare(result, answer);
}
} finally {
cxn.close();
}
} finally {
if (sail instanceof BigdataSail)
((BigdataSail)sail).__tearDownUnitTest();//shutDown();
}
}
Example 15
| Source File: TestTicket4249.java From database with GNU General Public License v2.0 | 4 votes |
|
public void testBug() throws Exception {
final BigdataSail sail = getSail();
try {
BigdataSailRepository repo = new BigdataSailRepository(sail);
try {
repo.initialize();
final RepositoryConnection conn = repo.getConnection();
conn.setAutoCommit(false);
ValueFactory vf = conn.getValueFactory();
try {
conn.add(getClass().getResourceAsStream("TestTicket2043.n3"), "",
RDFFormat.TURTLE);
conn.commit();
executeQuery(conn, "123", -1, 2, "");
executeQuery(conn, "123", 0, 2, "1");
executeQuery(conn, "123", 1, 2, "12");
executeQuery(conn, "123", 1, 2, "12");
executeQuery(conn, "123", 100, 1, "");
executeQuery(conn, "12345", 1.5, 2.6, "234");
executeQuery(conn, "12345", 0, 3, "12");
executeQuery(conn, "12345", 0d/0d, 3, "");
executeQuery(conn, "12345", 1, 0d/0d, "");
executeQuery(conn, "12345", -42, 1d/0d, "12345");
executeQuery(conn, "12345", -1d/0d, 2d/0d, "");
executeQuery(conn, vf.createLiteral("foobar"), 4, vf.createLiteral("bar"));
executeQuery(conn, vf.createLiteral("foobar","en"), 4, vf.createLiteral("bar", "en"));
executeQuery(conn, vf.createLiteral("foobar", XMLSchema.STRING), 4, vf.createLiteral("bar", XMLSchema.STRING));
executeQuery(conn, vf.createLiteral("foobar"), 4, 1, vf.createLiteral("b"));
executeQuery(conn, vf.createLiteral("foobar", "en"), 4, 1, vf.createLiteral("b", "en"));
executeQuery(conn, vf.createLiteral("foobar", XMLSchema.STRING), 4, 1, vf.createLiteral("b", XMLSchema.STRING));
} finally {
conn.close();
}
} finally {
repo.shutDown();
}
} finally {
sail.__tearDownUnitTest();
}
}
Example 16
| Source File: TestSingleTailRule.java From database with GNU General Public License v2.0 | 4 votes |
|
public void testOptionalFilter()
throws Exception
{
final BigdataSail sail = getSail();
final BigdataSailRepository repo = new BigdataSailRepository(sail);
// final Sail sail = new MemoryStore();
// final Repository repo = new SailRepository(sail);
repo.initialize();
final RepositoryConnection cxn = repo.getConnection();
cxn.setAutoCommit(false);
try {
final ValueFactory vf = sail.getValueFactory();
URI s = vf.createURI("urn:test:s");
URI p1 = vf.createURI("urn:test:p1");
URI p2 = vf.createURI("urn:test:p2");
Literal v1 = vf.createLiteral(1);
Literal v2 = vf.createLiteral(2);
Literal v3 = vf.createLiteral(3);
cxn.add(s, p1, v1);
cxn.add(s, p2, v2);
cxn.add(s, p1, v3);
cxn.commit();
String qry =
"PREFIX :<urn:test:> " +
"SELECT ?s ?v1 ?v2 " +
"WHERE { " +
" ?s :p1 ?v1 . " +
" OPTIONAL {?s :p2 ?v2 FILTER(?v1 < 3) } " +
"}";
TupleQuery query = cxn.prepareTupleQuery(QueryLanguage.SPARQL, qry);
TupleQueryResult result = query.evaluate();
// while (result.hasNext()) {
// System.err.println(result.next());
// }
Collection<BindingSet> solution = new LinkedList<BindingSet>();
solution.add(createBindingSet(new Binding[] {
new BindingImpl("s", s),
new BindingImpl("v1", v1),
new BindingImpl("v2", v2),
}));
solution.add(createBindingSet(new Binding[] {
new BindingImpl("s", s),
new BindingImpl("v1", v3),
}));
compare(result, solution);
} finally {
cxn.close();
if (sail instanceof BigdataSail)
((BigdataSail)sail).__tearDownUnitTest();
}
}
Example 17
| Source File: TestReadWriteTransactions.java From database with GNU General Public License v2.0 | 4 votes |
|
/**
* Test of abort semantics.
*/
public void test_abort() throws Exception {
class AbortException extends RuntimeException {
private static final long serialVersionUID = 1L;
}
// final LocalTripleStore store = (LocalTripleStore) getStore();
final BigdataSail sail = getSail();
try {
sail.initialize();
final BigdataSailRepository repo = new BigdataSailRepository(sail);
final RepositoryConnection store = repo.getReadWriteConnection();
store.setAutoCommit(false);
// Should be a nop.
store.rollback();
// final long s = 1, p = 2, o = 3;
final URI s = uri("a"), p = uri("b"), o = uri("c");
try {
// add the statement.
// store.addStatements(new SPO[] { //
// new SPO(s, p, o, StatementEnum.Explicit) //
// },//
// 1);
store.add(stmt(s, p, o));
// visible in the repo.
assertTrue(store.hasStatement(s, p, o, true));
// discard the write set.
store.rollback();
// no longer visible in the repo.
assertFalse(store.hasStatement(s, p, o, true));
} finally {
store.close();
}
} finally {
sail.__tearDownUnitTest();
}
}
Example 18
| Source File: TestMaterialization.java From database with GNU General Public License v2.0 | 4 votes |
|
public void testStr() throws Exception {
final BigdataSail sail = getSail();
try {
sail.initialize();
final BigdataSailRepository repo = new BigdataSailRepository(sail);
final RepositoryConnection cxn = repo.getConnection();
try {
cxn.setAutoCommit(false);
final ValueFactory vf = sail.getValueFactory();
/*
* Create some terms.
*/
final URI X = vf.createURI(BD.NAMESPACE + "X");
final Literal label = vf.createLiteral("John");
/*
* Create some statements.
*/
cxn.add(X, RDF.TYPE, RDFS.RESOURCE);
cxn.add(X, RDFS.LABEL, label);
/*
* Note: The either flush() or commit() is required to flush the
* statement buffers to the database before executing any operations
* that go around the sail.
*/
cxn.commit();
if (log.isInfoEnabled()) {
log.info(((BigdataSailRepositoryConnection) cxn).getTripleStore().dumpStore());
}
{
String query =
"select * where { ?s ?p ?o . FILTER (str(?o) = \""+RDF.PROPERTY+"\") }";
final SailTupleQuery tupleQuery = (SailTupleQuery)
cxn.prepareTupleQuery(QueryLanguage.SPARQL, query);
tupleQuery.setIncludeInferred(true /* includeInferred */);
if (log.isInfoEnabled()) {
log.info(query);
final TupleQueryResult result = tupleQuery.evaluate();
if (result.hasNext()) {
while (result.hasNext())
log.info(result.next());
} else {
fail("expecting result from the vocab");
}
}
// final Collection<BindingSet> answer = new LinkedList<BindingSet>();
// answer.add(createBindingSet(
// new BindingImpl("a", paul),
// new BindingImpl("b", mary)
// ));
// answer.add(createBindingSet(
// new BindingImpl("a", brad),
// new BindingImpl("b", john)
// ));
//
// final TupleQueryResult result = tupleQuery.evaluate();
// compare(result, answer);
}
} finally {
cxn.close();
}
} finally {
if (sail instanceof BigdataSail)
((BigdataSail)sail).__tearDownUnitTest();//shutDown();
}
}
Example 19
| Source File: DemoSesameServer.java From database with GNU General Public License v2.0 | 4 votes |
|
public static void _main(String[] args) throws Exception {
String sesameURL, repoID;
if (args != null && args.length == 2) {
sesameURL = args[0];
repoID = args[1];
} else {
sesameURL = DemoSesameServer.sesameURL;
repoID = DemoSesameServer.repoID;
}
Repository repo = new HTTPRepository(sesameURL, repoID);
repo.initialize();
RepositoryConnection cxn = repo.getConnection();
cxn.setAutoCommit(false);
try { // load some statements built up programmatically
URI mike = new URIImpl(BD.NAMESPACE + "Mike");
URI bryan = new URIImpl(BD.NAMESPACE + "Bryan");
URI loves = new URIImpl(BD.NAMESPACE + "loves");
URI rdf = new URIImpl(BD.NAMESPACE + "RDF");
Graph graph = new GraphImpl();
graph.add(mike, loves, rdf);
graph.add(bryan, loves, rdf);
cxn.add(graph);
cxn.commit();
} finally {
cxn.close();
}
{ // show the entire contents of the repository
SparqlBuilder sparql = new SparqlBuilder();
sparql.addTriplePattern("?s", "?p", "?o");
GraphQuery query = cxn.prepareGraphQuery(
QueryLanguage.SPARQL, sparql.toString());
GraphQueryResult result = query.evaluate();
while (result.hasNext()) {
Statement stmt = result.next();
System.err.println(stmt);
}
}
}
Example 20
| Source File: TestMaterialization.java From database with GNU General Public License v2.0 | 4 votes |
|
public void testRegex() throws Exception {
final BigdataSail sail = getSail();
try {
sail.initialize();
final BigdataSailRepository repo = new BigdataSailRepository(sail);
final RepositoryConnection cxn = repo.getConnection();
try {
cxn.setAutoCommit(false);
final ValueFactory vf = sail.getValueFactory();
/*
* Create some terms.
*/
final URI X = vf.createURI(BD.NAMESPACE + "X");
final Literal label = vf.createLiteral("John");
/*
* Create some statements.
*/
cxn.add(X, RDF.TYPE, RDFS.RESOURCE);
cxn.add(X, RDFS.LABEL, label);
/*
* Note: The either flush() or commit() is required to flush the
* statement buffers to the database before executing any operations
* that go around the sail.
*/
cxn.commit();
if (log.isInfoEnabled()) {
log.info(((BigdataSailRepositoryConnection) cxn).getTripleStore().dumpStore());
}
{
final String query =
"select * where { ?s ?p ?o . FILTER (regex(?o,\"John\",\"i\")) }";
final SailTupleQuery tupleQuery = (SailTupleQuery)
cxn.prepareTupleQuery(QueryLanguage.SPARQL, query);
tupleQuery.setIncludeInferred(true /* includeInferred */);
if (log.isInfoEnabled()) {
log.info(query);
final TupleQueryResult result = tupleQuery.evaluate();
while (result.hasNext()) {
log.info(result.next());
}
}
// final Collection<BindingSet> answer = new LinkedList<BindingSet>();
// answer.add(createBindingSet(
// new BindingImpl("a", paul),
// new BindingImpl("b", mary)
// ));
// answer.add(createBindingSet(
// new BindingImpl("a", brad),
// new BindingImpl("b", john)
// ));
//
// final TupleQueryResult result = tupleQuery.evaluate();
// compare(result, answer);
}
} finally {
cxn.close();
}
} finally {
if (sail instanceof BigdataSail)
((BigdataSail)sail).__tearDownUnitTest();//shutDown();
}
}
