Examples with MongoDBRdfConfiguration org.apache.rya.mongodb.MongoDBRdfConfiguration used on opensource projects

Example 6 with MongoDBRdfConfiguration

use of org.apache.rya.mongodb.MongoDBRdfConfiguration in project incubator-rya by apache.

the class MongoExecuteSparqlQuery 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;
    SailRepositoryConnection sailRepoConn = null;
    try {
        // Get a Sail object that is connected to the Rya instance.
        final MongoDBRdfConfiguration ryaConf = connectionDetails.build(ryaInstanceName);
        sail = RyaSailFactory.getInstance(ryaConf);
        final SailRepository 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 long end = System.currentTimeMillis();
        // Format and return the result of the query.
        final String queryResult = new String(baos.toByteArray(), StandardCharsets.UTF_8);
        final String queryDuration = new DecimalFormat("0.0##").format((end - start) / 1000.0);
        return "Query Result:\n" + queryResult + "Retrieved " + handler.getCount() + " results in " + queryDuration + " seconds.";
    } catch (SailException | RyaDAOException | InferenceEngineException | AccumuloException | AccumuloSecurityException e) {
        throw new RyaClientException("Could not create the Sail object used to query the RYA instance.", e);
    } catch (final MalformedQueryException | QueryEvaluationException | TupleQueryResultHandlerException | RepositoryException e) {
        throw new RyaClientException("Could not execute the SPARQL query.", e);
    } finally {
        // Close the resources that were opened.
        if (sailRepoConn != null) {
            try {
                sailRepoConn.close();
            } catch (final RepositoryException e) {
                log.error("Couldn't close the SailRepositoryConnection object.", e);
            }
        }
        if (sail != null) {
            try {
                sail.shutDown();
            } catch (final SailException e) {
                log.error("Couldn't close the Sail object.", e);
            }
        }
    }
}

Example 7 with MongoDBRdfConfiguration

use of org.apache.rya.mongodb.MongoDBRdfConfiguration in project incubator-rya by apache.

the class MongoInstall method makeRyaConfig.

/**
 * Builds a {@link MongoRdfConfiguration} object that will be used by the
 * Rya DAO to initialize all of the tables it will need.
 *
 * @param connectionDetails - Indicates how to connect to Mongo. (not null)
 * @param ryaDetails - Indicates what needs to be installed. (not null)
 * @return A Rya Configuration object that can be used to perform the install.
 */
private static MongoDBRdfConfiguration makeRyaConfig(final MongoConnectionDetails connectionDetails, final RyaDetails ryaDetails) {
    // Start with a configuration that is built using the connection details.
    final MongoDBRdfConfiguration conf = connectionDetails.build(ryaDetails.getRyaInstanceName());
    conf.setBoolean(ConfigUtils.USE_PCJ, ryaDetails.getPCJIndexDetails().isEnabled());
    // Mongo does not support entity indexing.
    if (ryaDetails.getEntityCentricIndexDetails().isEnabled()) {
        log.warn("The install configuration says to enable Entity Centric indexing, but Mongo RYA does not support " + "that feature. Ignoring this configuration.");
    }
    // TODO mongo now has an entity index, just needs CLI support.
    conf.setBoolean(ConfigUtils.USE_ENTITY, false);
    // FIXME RYA-215 We haven't enabled geo indexing in the console yet.
    // conf.set(OptionalConfigUtils.USE_GEO, "" + details.getGeoIndexDetails().isEnabled() );
    // Enable the supported indexers that the instance is configured to use.
    conf.setBoolean(ConfigUtils.USE_FREETEXT, ryaDetails.getFreeTextIndexDetails().isEnabled());
    conf.setBoolean(ConfigUtils.USE_TEMPORAL, ryaDetails.getTemporalIndexDetails().isEnabled());
    // This initializes the living indexers that will be used by the application and
    // caches them within the configuration object so that they may be used later.
    ConfigUtils.setIndexers(conf);
    return conf;
}

Example 8 with MongoDBRdfConfiguration

use of org.apache.rya.mongodb.MongoDBRdfConfiguration in project incubator-rya by apache.

the class MongoInstall method install.

@Override
public void install(final String instanceName, final InstallConfiguration installConfig) throws DuplicateInstanceNameException, RyaClientException {
    requireNonNull(instanceName);
    requireNonNull(installConfig);
    // Check to see if a Rya instance has already been installed with this name.
    if (instanceExists.exists(instanceName)) {
        throw new DuplicateInstanceNameException("An instance of Rya has already been installed to this Rya storage " + "with the name '" + instanceName + "'. Try again with a different name.");
    }
    // Initialize the Rya Details table.
    final RyaDetails ryaDetails;
    try {
        ryaDetails = initializeRyaDetails(instanceName, installConfig);
    } catch (final AlreadyInitializedException e) {
        // This can only happen if somebody else installs an instance of Rya with the name between the check and now.
        throw new DuplicateInstanceNameException("An instance of Rya has already been installed to this Rya storage " + "with the name '" + instanceName + "'. Try again with a different name.");
    } catch (final RyaDetailsRepositoryException e) {
        throw new RyaClientException("The RyaDetails couldn't be initialized. Details: " + e.getMessage(), e);
    }
    // Initialize the rest of the collections used by the Rya instance.
    final MongoDBRdfConfiguration ryaConfig = makeRyaConfig(connectionDetails, ryaDetails);
    try {
        final Sail ryaSail = RyaSailFactory.getInstance(ryaConfig);
        ryaSail.shutDown();
    } catch (final AccumuloException | AccumuloSecurityException | RyaDAOException | InferenceEngineException e) {
        throw new RyaClientException("Could not initialize all of the tables for the new Rya instance. " + "This instance may be left in a bad state.", e);
    } catch (final SailException e) {
        throw new RyaClientException("Problem shutting down the Sail object used to install Rya.", e);
    }
}

Example 9 with MongoDBRdfConfiguration

use of org.apache.rya.mongodb.MongoDBRdfConfiguration in project incubator-rya by apache.

the class MongoLoadStatementsFile method loadStatements.

@Override
public void loadStatements(final String ryaInstanceName, final Path statementsFile, final RDFFormat format) throws InstanceDoesNotExistException, RyaClientException {
    requireNonNull(ryaInstanceName);
    requireNonNull(statementsFile);
    requireNonNull(format);
    // 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;
    SailRepositoryConnection sailRepoConn = null;
    try {
        // Get a Sail object that is connected to the Rya instance.
        final MongoDBRdfConfiguration ryaConf = connectionDetails.build(ryaInstanceName);
        sail = RyaSailFactory.getInstance(ryaConf);
        final SailRepository sailRepo = new SailRepository(sail);
        sailRepoConn = sailRepo.getConnection();
        // Load the file.
        sailRepoConn.add(statementsFile.toFile(), null, format);
    } catch (SailException | RyaDAOException | InferenceEngineException | AccumuloException | AccumuloSecurityException e) {
        throw new RyaClientException("Could not load statements into Rya because of a problem while creating the Sail object.", e);
    } catch (RDFParseException | RepositoryException | IOException e) {
        throw new RyaClientException("Could not load the statements into Rya.", e);
    } finally {
        // Close the resources that were opened.
        if (sailRepoConn != null) {
            try {
                sailRepoConn.close();
            } catch (final RepositoryException e) {
                log.error("Couldn't close the SailRepositoryConnection object.", e);
            }
        }
        if (sail != null) {
            try {
                sail.shutDown();
            } catch (final SailException e) {
                log.error("Couldn't close the Sail object.", e);
            }
        }
    }
}

Example 10 with MongoDBRdfConfiguration

use of org.apache.rya.mongodb.MongoDBRdfConfiguration in project incubator-rya by apache.

the class MongoLoadStatements 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;
    SailRepositoryConnection sailRepoConn = null;
    try {
        // Get a Sail object that is connected to the Rya instance.
        final MongoDBRdfConfiguration ryaConf = connectionDetails.build(ryaInstanceName);
        sail = RyaSailFactory.getInstance(ryaConf);
        final SailRepository sailRepo = new SailRepository(sail);
        sailRepoConn = sailRepo.getConnection();
        // Load the statements.
        sailRepoConn = sailRepo.getConnection();
        sailRepoConn.add(statements);
    } catch (SailException | RyaDAOException | InferenceEngineException | AccumuloException | AccumuloSecurityException e) {
        throw new RyaClientException("Could not load statements into Rya because of a problem while creating the Sail object.", e);
    } catch (final RepositoryException e) {
        throw new RyaClientException("Could not load the statements into Rya.", e);
    } finally {
        // Close the resources that were opened.
        if (sailRepoConn != null) {
            try {
                sailRepoConn.close();
            } catch (final RepositoryException e) {
                log.error("Couldn't close the SailRepositoryConnection object.", e);
            }
        }
        if (sail != null) {
            try {
                sail.shutDown();
            } catch (final SailException e) {
                log.error("Couldn't close the Sail object.", e);
            }
        }
    }
}