Examples with SPARQLRepository org.eclipse.rdf4j.repository.sparql.SPARQLRepository used on opensource projects

Example 16 with SPARQLRepository

use of org.eclipse.rdf4j.repository.sparql.SPARQLRepository in project AJAN-service by aantakli.

the class SendHTLELogs method readExternalRepo.

private boolean readExternalRepo(final ArrayNode array) throws IOException {
    boolean bool = false;
    Repository repo = new SPARQLRepository(repository.toString());
    try (RepositoryConnection conn = repo.getConnection()) {
        conn.begin(IsolationLevels.SERIALIZABLE);
        TupleQuery mmuQuery = conn.prepareTupleQuery(MMU_LOGS);
        TupleQueryResult mmuResult = mmuQuery.evaluate();
        if (readMMUInstructions(array, mmuResult)) {
            bool = true;
            TupleQuery abortQuery = conn.prepareTupleQuery(ABORT_LOGS);
            TupleQueryResult abortResult = abortQuery.evaluate();
            readAbortInstructions(array, abortResult);
        }
        conn.close();
    }
    return bool;
}

Example 17 with SPARQLRepository

use of org.eclipse.rdf4j.repository.sparql.SPARQLRepository in project amazon-neptune-tools by awslabs.

the class NeptuneSparqlClient method executeTupleQuery.

public void executeTupleQuery(String sparql, RdfTargetConfig targetConfig) throws IOException {
    SPARQLRepository repository = chooseRepository();
    ValueFactory factory = repository.getValueFactory();
    try (RepositoryConnection connection = repository.getConnection();
        OutputWriter outputWriter = targetConfig.createOutputWriter()) {
        RDFWriter writer = targetConfig.createRDFWriter(outputWriter);
        connection.prepareTupleQuery(sparql).evaluate(new TupleQueryHandler(writer, factory));
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}