use of org.openrdf.repository.sail.SailRepositoryConnection in project incubator-rya by apache.
the class EntityDirectExample method main.
public static void main(final String[] args) throws Exception {
final Configuration conf = getConf();
conf.setBoolean(ConfigUtils.DISPLAY_QUERY_PLAN, PRINT_QUERIES);
log.info("Creating the tables as root.");
SailRepository repository = null;
SailRepositoryConnection conn = null;
try {
log.info("Connecting to Indexing Sail Repository.");
final Sail extSail = RyaSailFactory.getInstance(conf);
repository = new SailRepository(extSail);
conn = repository.getConnection();
log.info("Running SPARQL Example: Add and Delete");
testAddAndDelete(conn);
log.info("Running SAIL/SPARQL Example: Add and Temporal Search");
testAddAndTemporalSearchWithPCJ(conn);
} finally {
log.info("Shutting down");
closeQuietly(conn);
closeQuietly(repository);
}
}
use of org.openrdf.repository.sail.SailRepositoryConnection in project incubator-rya by apache.
the class AccumuloExecuteSparqlQuery method executeSparqlQuery.
@Override
public String executeSparqlQuery(final String ryaInstanceName, final String sparqlQuery) throws InstanceDoesNotExistException, RyaClientException {
requireNonNull(ryaInstanceName);
requireNonNull(sparqlQuery);
// Ensure the Rya Instance exists.
if (!instanceExists.exists(ryaInstanceName)) {
throw new InstanceDoesNotExistException(String.format("There is no Rya instance named '%s'.", ryaInstanceName));
}
Sail sail = null;
SailRepository sailRepo = null;
SailRepositoryConnection sailRepoConn = null;
try {
// Get a Sail object that is connected to the Rya instance.
final AccumuloRdfConfiguration ryaConf = getAccumuloConnectionDetails().buildAccumuloRdfConfiguration(ryaInstanceName);
sail = RyaSailFactory.getInstance(ryaConf);
sailRepo = new SailRepository(sail);
sailRepoConn = sailRepo.getConnection();
// Execute the query.
final long start = System.currentTimeMillis();
final TupleQuery tupleQuery = sailRepoConn.prepareTupleQuery(QueryLanguage.SPARQL, sparqlQuery);
final ByteArrayOutputStream baos = new ByteArrayOutputStream();
final CountingSPARQLResultsCSVWriter handler = new CountingSPARQLResultsCSVWriter(baos);
tupleQuery.evaluate(handler);
final StringBuilder sb = new StringBuilder();
final String newline = "\n";
sb.append("Query Result:").append(newline);
sb.append(new String(baos.toByteArray(), StandardCharsets.UTF_8));
final String seconds = new DecimalFormat("0.0##").format((System.currentTimeMillis() - start) / 1000.0);
sb.append("Retrieved ").append(handler.getCount()).append(" results in ").append(seconds).append(" seconds.");
return sb.toString();
} catch (final SailException | AccumuloException | AccumuloSecurityException | RyaDAOException | InferenceEngineException e) {
throw new RyaClientException("A problem connecting to the Rya instance named '" + ryaInstanceName + "' has caused the query to fail.", e);
} catch (final MalformedQueryException e) {
throw new RyaClientException("There was a problem parsing the supplied query.", e);
} catch (final QueryEvaluationException | TupleQueryResultHandlerException e) {
throw new RyaClientException("There was a problem evaluating the supplied query.", e);
} catch (final RepositoryException e) {
throw new RyaClientException("There was a problem executing the query against the Rya instance named " + ryaInstanceName + ".", e);
} finally {
// Shut it all down.
if (sailRepoConn != null) {
try {
sailRepoConn.close();
} catch (final RepositoryException e) {
log.warn("Couldn't close the SailRepoConnection that is attached to the Rya instance.", e);
}
}
if (sailRepo != null) {
try {
sailRepo.shutDown();
} catch (final RepositoryException e) {
log.warn("Couldn't shut down the SailRepository that is attached to the Rya instance.", e);
}
}
if (sail != null) {
try {
sail.shutDown();
} catch (final SailException e) {
log.warn("Couldn't shut down the Sail that is attached to the Rya instance.", e);
}
}
}
}
use of org.openrdf.repository.sail.SailRepositoryConnection in project incubator-rya by apache.
the class AccumuloLoadStatements method loadStatements.
@Override
public void loadStatements(final String ryaInstanceName, final Iterable<? extends Statement> statements) throws InstanceDoesNotExistException, RyaClientException {
requireNonNull(ryaInstanceName);
requireNonNull(statements);
// Ensure the Rya Instance exists.
if (!instanceExists.exists(ryaInstanceName)) {
throw new InstanceDoesNotExistException(String.format("There is no Rya instance named '%s'.", ryaInstanceName));
}
Sail sail = null;
SailRepository sailRepo = null;
SailRepositoryConnection sailRepoConn = null;
try {
// Get a Sail object that is connected to the Rya instance.
final AccumuloRdfConfiguration ryaConf = getAccumuloConnectionDetails().buildAccumuloRdfConfiguration(ryaInstanceName);
// RYA-327 should address this hardcoded value.
ryaConf.setFlush(false);
sail = RyaSailFactory.getInstance(ryaConf);
// Load the file.
sailRepo = new SailRepository(sail);
sailRepoConn = sailRepo.getConnection();
sailRepoConn.add(statements);
} catch (final SailException | AccumuloException | AccumuloSecurityException | RyaDAOException | InferenceEngineException e) {
log.warn("Exception while loading:", e);
throw new RyaClientException("A problem connecting to the Rya instance named '" + ryaInstanceName + "' has caused the load to fail.", e);
} catch (final Exception e) {
log.warn("Exception while loading:", e);
throw new RyaClientException("A problem processing the RDF statements has caused the load into Rya instance named " + ryaInstanceName + "to fail.", e);
} finally {
// Shut it all down.
if (sailRepoConn != null) {
try {
sailRepoConn.close();
} catch (final RepositoryException e) {
log.warn("Couldn't close the SailRepoConnection that is attached to the Rya instance.", e);
}
}
if (sailRepo != null) {
try {
sailRepo.shutDown();
} catch (final RepositoryException e) {
log.warn("Couldn't shut down the SailRepository that is attached to the Rya instance.", e);
}
}
if (sail != null) {
try {
sail.shutDown();
} catch (final SailException e) {
log.warn("Couldn't shut down the Sail that is attached to the Rya instance.", e);
}
}
}
}
use of org.openrdf.repository.sail.SailRepositoryConnection in project incubator-rya by apache.
the class RdfController method queryRdf.
@RequestMapping(value = "/queryrdf", method = { RequestMethod.GET, RequestMethod.POST })
public void queryRdf(@RequestParam("query") final String query, @RequestParam(value = RdfCloudTripleStoreConfiguration.CONF_QUERY_AUTH, required = false) String auth, @RequestParam(value = RdfCloudTripleStoreConfiguration.CONF_CV, required = false) final String vis, @RequestParam(value = RdfCloudTripleStoreConfiguration.CONF_INFER, required = false) final String infer, @RequestParam(value = "nullout", required = false) final String nullout, @RequestParam(value = RdfCloudTripleStoreConfiguration.CONF_RESULT_FORMAT, required = false) final String emit, @RequestParam(value = "padding", required = false) final String padding, @RequestParam(value = "callback", required = false) final String callback, final HttpServletRequest request, final HttpServletResponse response) {
// WARNING: if you add to the above request variables,
// Be sure to validate and encode since they come from the outside and could contain odd damaging character sequences.
SailRepositoryConnection conn = null;
final Thread queryThread = Thread.currentThread();
auth = StringUtils.arrayToCommaDelimitedString(provider.getUserAuths(request));
final Timer timer = new Timer();
timer.schedule(new TimerTask() {
@Override
public void run() {
log.debug("interrupting");
queryThread.interrupt();
}
}, QUERY_TIME_OUT_SECONDS * 1000);
try {
final ServletOutputStream os = response.getOutputStream();
conn = repository.getConnection();
final Boolean isBlankQuery = StringUtils.isEmpty(query);
final ParsedOperation operation = QueryParserUtil.parseOperation(QueryLanguage.SPARQL, query, null);
final Boolean requestedCallback = !StringUtils.isEmpty(callback);
final Boolean requestedFormat = !StringUtils.isEmpty(emit);
if (!isBlankQuery) {
if (operation instanceof ParsedGraphQuery) {
// Perform Graph Query
final RDFHandler handler = new RDFXMLWriter(os);
response.setContentType("text/xml");
performGraphQuery(query, conn, auth, infer, nullout, handler);
} else if (operation instanceof ParsedTupleQuery) {
// Perform Tuple Query
TupleQueryResultHandler handler;
if (requestedFormat && emit.equalsIgnoreCase("json")) {
handler = new SPARQLResultsJSONWriter(os);
response.setContentType("application/json");
} else {
handler = new SPARQLResultsXMLWriter(os);
response.setContentType("text/xml");
}
performQuery(query, conn, auth, infer, nullout, handler);
} else if (operation instanceof ParsedUpdate) {
// Perform Update Query
performUpdate(query, conn, os, infer, vis);
} else {
throw new MalformedQueryException("Cannot process query. Query type not supported.");
}
}
if (requestedCallback) {
os.print(")");
}
} catch (final Exception e) {
log.error("Error running query", e);
throw new RuntimeException(e);
} finally {
if (conn != null) {
try {
conn.close();
} catch (final RepositoryException e) {
log.error("Error closing connection", e);
}
}
}
timer.cancel();
}
use of org.openrdf.repository.sail.SailRepositoryConnection in project incubator-rya by apache.
the class PcjDocumentsWithMockTest method populatePcj.
@Test
public void populatePcj() throws Exception {
final RdfCloudTripleStore ryaStore = new RdfCloudTripleStore();
final MongoDBRyaDAO dao = new MongoDBRyaDAO();
dao.setConf(new StatefulMongoDBRdfConfiguration(conf, getMongoClient()));
dao.init();
ryaStore.setRyaDAO(dao);
ryaStore.initialize();
final SailRepositoryConnection ryaConn = new RyaSailRepository(ryaStore).getConnection();
try {
// Load some Triples into Rya.
final Set<Statement> triples = new HashSet<>();
triples.add(new StatementImpl(new URIImpl("http://Alice"), new URIImpl("http://hasAge"), new NumericLiteralImpl(14, XMLSchema.INTEGER)));
triples.add(new StatementImpl(new URIImpl("http://Alice"), new URIImpl("http://playsSport"), new LiteralImpl("Soccer")));
triples.add(new StatementImpl(new URIImpl("http://Bob"), new URIImpl("http://hasAge"), new NumericLiteralImpl(16, XMLSchema.INTEGER)));
triples.add(new StatementImpl(new URIImpl("http://Bob"), new URIImpl("http://playsSport"), new LiteralImpl("Soccer")));
triples.add(new StatementImpl(new URIImpl("http://Charlie"), new URIImpl("http://hasAge"), new NumericLiteralImpl(12, XMLSchema.INTEGER)));
triples.add(new StatementImpl(new URIImpl("http://Charlie"), new URIImpl("http://playsSport"), new LiteralImpl("Soccer")));
triples.add(new StatementImpl(new URIImpl("http://Eve"), new URIImpl("http://hasAge"), new NumericLiteralImpl(43, XMLSchema.INTEGER)));
triples.add(new StatementImpl(new URIImpl("http://Eve"), new URIImpl("http://playsSport"), new LiteralImpl("Soccer")));
for (final Statement triple : triples) {
ryaConn.add(triple);
}
// Create a PCJ table that will include those triples in its results.
final String sparql = "SELECT ?name ?age " + "{" + "?name <http://hasAge> ?age." + "?name <http://playsSport> \"Soccer\" " + "}";
final String pcjTableName = new PcjTableNameFactory().makeTableName(conf.getRyaInstanceName(), "testPcj");
final MongoPcjDocuments pcjs = new MongoPcjDocuments(getMongoClient(), conf.getRyaInstanceName());
pcjs.createAndPopulatePcj(ryaConn, pcjTableName, sparql);
// Make sure the cardinality was updated.
final PcjMetadata metadata = pcjs.getPcjMetadata(pcjTableName);
assertEquals(4, metadata.getCardinality());
} finally {
ryaConn.close();
ryaStore.shutDown();
}
}
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