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Example 11 with MapBindingSet

use of org.openrdf.query.impl.MapBindingSet in project incubator-rya by apache.

the class EntityQueryNode method findBindings.

private List<BindingSet> findBindings(final BindingSet bindingSet) throws QueryEvaluationException {
    final MapBindingSet resultSet = new MapBindingSet();
    try {
        final ConvertingCursor<TypedEntity> entitiesCursor;
        final String subj;
        // If the subject needs to be filled in, check if the subject variable is in the binding set.
        if (subjectIsConstant) {
            // if it is, fetch that value and then fetch the entity for the subject.
            subj = subjectConstant.get();
            entitiesCursor = entities.search(Optional.of(new RyaURI(subj)), type, properties);
        } else {
            entitiesCursor = entities.search(Optional.empty(), type, properties);
        }
        while (entitiesCursor.hasNext()) {
            final TypedEntity typedEntity = entitiesCursor.next();
            final ImmutableCollection<Property> properties = typedEntity.getProperties();
            // ensure properties match and only add properties that are in the statement patterns to the binding set
            for (final RyaURI key : objectVariables.keySet()) {
                final Optional<RyaType> prop = typedEntity.getPropertyValue(new RyaURI(key.getData()));
                if (prop.isPresent()) {
                    final RyaType type = prop.get();
                    final String bindingName = objectVariables.get(key).getName();
                    resultSet.addBinding(bindingName, ValueFactoryImpl.getInstance().createLiteral(type.getData()));
                }
            }
        }
    } catch (final EntityStorageException e) {
        throw new QueryEvaluationException("Failed to evaluate the binding set", e);
    }
    bindingSet.forEach(new Consumer<Binding>() {

        @Override
        public void accept(final Binding binding) {
            resultSet.addBinding(binding);
        }
    });
    final List<BindingSet> list = new ArrayList<>();
    list.add(resultSet);
    return list;
}
Also used : Binding(org.openrdf.query.Binding) MapBindingSet(org.openrdf.query.impl.MapBindingSet) BindingSet(org.openrdf.query.BindingSet) ArrayList(java.util.ArrayList) RyaType(org.apache.rya.api.domain.RyaType) RyaURI(org.apache.rya.api.domain.RyaURI) QueryEvaluationException(org.openrdf.query.QueryEvaluationException) TypedEntity(org.apache.rya.indexing.entity.model.TypedEntity) MapBindingSet(org.openrdf.query.impl.MapBindingSet) Property(org.apache.rya.indexing.entity.model.Property) EntityStorageException(org.apache.rya.indexing.entity.storage.EntityStorage.EntityStorageException)

Example 12 with MapBindingSet

use of org.openrdf.query.impl.MapBindingSet in project incubator-rya by apache.

the class RunQueryCommandIT method runQuery.

@Test
public void runQuery() throws Exception {
    // Register a query with the Query Repository.
    final StreamsQuery sQuery = queryRepo.add("SELECT * WHERE { ?person <urn:worksAt> ?business . }", true, false);
    // Arguments that run the query we just registered with Rya Streams.
    final String[] args = new String[] { "--ryaInstance", "" + ryaInstance, "--kafkaHostname", kafka.getKafkaHostname(), "--kafkaPort", kafka.getKafkaPort(), "--queryID", sQuery.getQueryId().toString(), "--zookeepers", kafka.getZookeeperServers() };
    // Create a new Thread that runs the command.
    final Thread commandThread = new Thread() {

        @Override
        public void run() {
            final RunQueryCommand command = new RunQueryCommand();
            try {
                command.execute(args);
            } catch (ArgumentsException | ExecutionException e) {
            // Do nothing. Test will still fail because the expected results will be missing.
            }
        }
    };
    // Create the statements that will be loaded.
    final ValueFactory vf = new ValueFactoryImpl();
    final List<VisibilityStatement> statements = new ArrayList<>();
    statements.add(new VisibilityStatement(vf.createStatement(vf.createURI("urn:Alice"), vf.createURI("urn:worksAt"), vf.createURI("urn:BurgerJoint")), "a"));
    statements.add(new VisibilityStatement(vf.createStatement(vf.createURI("urn:Bob"), vf.createURI("urn:worksAt"), vf.createURI("urn:TacoShop")), "a"));
    statements.add(new VisibilityStatement(vf.createStatement(vf.createURI("urn:Charlie"), vf.createURI("urn:worksAt"), vf.createURI("urn:TacoShop")), "a"));
    // Create the expected results.
    final List<VisibilityBindingSet> expected = new ArrayList<>();
    MapBindingSet bs = new MapBindingSet();
    bs.addBinding("person", vf.createURI("urn:Alice"));
    bs.addBinding("business", vf.createURI("urn:BurgerJoint"));
    expected.add(new VisibilityBindingSet(bs, "a"));
    bs = new MapBindingSet();
    bs.addBinding("person", vf.createURI("urn:Bob"));
    bs.addBinding("business", vf.createURI("urn:TacoShop"));
    expected.add(new VisibilityBindingSet(bs, "a"));
    bs = new MapBindingSet();
    bs.addBinding("person", vf.createURI("urn:Charlie"));
    bs.addBinding("business", vf.createURI("urn:TacoShop"));
    expected.add(new VisibilityBindingSet(bs, "a"));
    // Execute the test. This will result in a set of results that were read from the results topic.
    final List<VisibilityBindingSet> results;
    try {
        // Wait for the program to start.
        commandThread.start();
        Thread.sleep(5000);
        // Write some statements to the program.
        final String statementsTopic = KafkaTopics.statementsTopic(ryaInstance);
        final LoadStatements loadStatements = new KafkaLoadStatements(statementsTopic, stmtProducer);
        loadStatements.fromCollection(statements);
        // Read the output of the streams program.
        final String resultsTopic = KafkaTopics.queryResultsTopic(ryaInstance, sQuery.getQueryId());
        resultConsumer.subscribe(Lists.newArrayList(resultsTopic));
        results = KafkaTestUtil.pollForResults(500, 6, 3, resultConsumer);
    } finally {
        // Tear down the test.
        commandThread.interrupt();
        commandThread.join(3000);
    }
    // Show the read results matched the expected ones.
    assertEquals(expected, results);
}
Also used : VisibilityBindingSet(org.apache.rya.api.model.VisibilityBindingSet) ArgumentsException(org.apache.rya.streams.client.RyaStreamsCommand.ArgumentsException) StreamsQuery(org.apache.rya.streams.api.entity.StreamsQuery) KafkaLoadStatements(org.apache.rya.streams.kafka.interactor.KafkaLoadStatements) LoadStatements(org.apache.rya.streams.api.interactor.LoadStatements) ValueFactoryImpl(org.openrdf.model.impl.ValueFactoryImpl) ArrayList(java.util.ArrayList) ValueFactory(org.openrdf.model.ValueFactory) VisibilityStatement(org.apache.rya.api.model.VisibilityStatement) KafkaLoadStatements(org.apache.rya.streams.kafka.interactor.KafkaLoadStatements) MapBindingSet(org.openrdf.query.impl.MapBindingSet) ExecutionException(org.apache.rya.streams.client.RyaStreamsCommand.ExecutionException) Test(org.junit.Test)

Example 13 with MapBindingSet

use of org.openrdf.query.impl.MapBindingSet in project incubator-rya by apache.

the class GeoFilterIT method showProcessorWorks.

@Test
public void showProcessorWorks() throws Exception {
    // Enumerate some topics that will be re-used
    final String ryaInstance = UUID.randomUUID().toString();
    final UUID queryId = UUID.randomUUID();
    final String statementsTopic = KafkaTopics.statementsTopic(ryaInstance);
    final String resultsTopic = KafkaTopics.queryResultsTopic(ryaInstance, queryId);
    // Get the RDF model objects that will be used to build the query.
    final String sparql = "PREFIX geo: <http://www.opengis.net/ont/geosparql#>\n" + "PREFIX geof: <" + GEO + ">\n" + "SELECT * \n" + "WHERE { \n" + "  <urn:event1> geo:asWKT ?point .\n" + " FILTER(geof:sfWithin(?point, \"POLYGON((-3 -2, -3 2, 1 2, 1 -2, -3 -2))\"^^geo:wktLiteral)) " + "}";
    // Setup a topology.
    final TopologyBuilder builder = new TopologyFactory().build(sparql, statementsTopic, resultsTopic, new RandomUUIDFactory());
    // Create the statements that will be input into the query.
    final ValueFactory vf = new ValueFactoryImpl();
    final List<VisibilityStatement> statements = getStatements();
    // Make the expected results.
    final Set<VisibilityBindingSet> expected = new HashSet<>();
    final MapBindingSet bs = new MapBindingSet();
    final WKTWriter w = new WKTWriter();
    bs.addBinding("point", vf.createLiteral(w.write(ZERO), GeoConstants.XMLSCHEMA_OGC_WKT));
    expected.add(new VisibilityBindingSet(bs, "a"));
    // Run the test.
    RyaStreamsTestUtil.runStreamProcessingTest(kafka, statementsTopic, resultsTopic, builder, statements, expected, VisibilityBindingSetDeserializer.class);
}
Also used : WKTWriter(com.vividsolutions.jts.io.WKTWriter) VisibilityBindingSet(org.apache.rya.api.model.VisibilityBindingSet) TopologyBuilder(org.apache.kafka.streams.processor.TopologyBuilder) ValueFactoryImpl(org.openrdf.model.impl.ValueFactoryImpl) TopologyFactory(org.apache.rya.streams.kafka.topology.TopologyFactory) ValueFactory(org.openrdf.model.ValueFactory) VisibilityStatement(org.apache.rya.api.model.VisibilityStatement) RandomUUIDFactory(org.apache.rya.api.function.projection.RandomUUIDFactory) MapBindingSet(org.openrdf.query.impl.MapBindingSet) UUID(java.util.UUID) HashSet(java.util.HashSet) Test(org.junit.Test)

Example 14 with MapBindingSet

use of org.openrdf.query.impl.MapBindingSet in project incubator-rya by apache.

the class FilterProcessorIT method showProcessorWorks.

@Test
public void showProcessorWorks() throws Exception {
    // Enumerate some topics that will be re-used
    final String ryaInstance = UUID.randomUUID().toString();
    final UUID queryId = UUID.randomUUID();
    final String statementsTopic = KafkaTopics.statementsTopic(ryaInstance);
    final String resultsTopic = KafkaTopics.queryResultsTopic(ryaInstance, queryId);
    // Get the RDF model objects that will be used to build the query.
    final String sparql = "SELECT * " + "WHERE { " + "FILTER(?age < 10)" + "?person <urn:age> ?age " + "}";
    // Setup a topology.
    final TopologyBuilder builder = new TopologyFactory().build(sparql, statementsTopic, resultsTopic, new RandomUUIDFactory());
    // Create the statements that will be input into the query.
    final ValueFactory vf = new ValueFactoryImpl();
    final List<VisibilityStatement> statements = new ArrayList<>();
    statements.add(new VisibilityStatement(vf.createStatement(vf.createURI("urn:Bob"), vf.createURI("urn:age"), vf.createLiteral(11)), "a"));
    statements.add(new VisibilityStatement(vf.createStatement(vf.createURI("urn:Alice"), vf.createURI("urn:age"), vf.createLiteral(9)), "a"));
    // Make the expected results.
    final Set<VisibilityBindingSet> expected = new HashSet<>();
    final MapBindingSet bs = new MapBindingSet();
    bs.addBinding("person", vf.createURI("urn:Alice"));
    bs.addBinding("age", vf.createLiteral(9));
    expected.add(new VisibilityBindingSet(bs, "a"));
    // Run the test.
    RyaStreamsTestUtil.runStreamProcessingTest(kafka, statementsTopic, resultsTopic, builder, statements, expected, VisibilityBindingSetDeserializer.class);
}
Also used : VisibilityBindingSet(org.apache.rya.api.model.VisibilityBindingSet) TopologyBuilder(org.apache.kafka.streams.processor.TopologyBuilder) ValueFactoryImpl(org.openrdf.model.impl.ValueFactoryImpl) ArrayList(java.util.ArrayList) TopologyFactory(org.apache.rya.streams.kafka.topology.TopologyFactory) ValueFactory(org.openrdf.model.ValueFactory) VisibilityStatement(org.apache.rya.api.model.VisibilityStatement) RandomUUIDFactory(org.apache.rya.api.function.projection.RandomUUIDFactory) MapBindingSet(org.openrdf.query.impl.MapBindingSet) UUID(java.util.UUID) HashSet(java.util.HashSet) Test(org.junit.Test)

Example 15 with MapBindingSet

use of org.openrdf.query.impl.MapBindingSet in project incubator-rya by apache.

the class TemporalFilterIT method showAfterWorks.

@Test
public void showAfterWorks() throws Exception {
    // Enumerate some topics that will be re-used
    final String ryaInstance = UUID.randomUUID().toString();
    final UUID queryId = UUID.randomUUID();
    final String statementsTopic = KafkaTopics.statementsTopic(ryaInstance);
    final String resultsTopic = KafkaTopics.queryResultsTopic(ryaInstance, queryId);
    // Get the RDF model objects that will be used to build the query.
    final String sparql = "PREFIX time: <http://www.w3.org/2006/time/> \n" + "PREFIX tempf: <" + TemporalURIs.NAMESPACE + ">\n" + "SELECT * \n" + "WHERE { \n" + "  <urn:time> time:atTime ?date .\n" + " FILTER(tempf:after(?date, \"" + TIME_10.toString() + "\")) " + "}";
    // Setup a topology.
    final TopologyBuilder builder = new TopologyFactory().build(sparql, statementsTopic, resultsTopic, new RandomUUIDFactory());
    // Create the statements that will be input into the query.
    final ValueFactory vf = new ValueFactoryImpl();
    final List<VisibilityStatement> statements = getStatements();
    // Make the expected results.
    final Set<VisibilityBindingSet> expected = new HashSet<>();
    final MapBindingSet bs = new MapBindingSet();
    bs.addBinding("date", vf.createLiteral(TIME_20.toString()));
    expected.add(new VisibilityBindingSet(bs, "a"));
    // Run the test.
    RyaStreamsTestUtil.runStreamProcessingTest(kafka, statementsTopic, resultsTopic, builder, statements, expected, VisibilityBindingSetDeserializer.class);
}
Also used : VisibilityBindingSet(org.apache.rya.api.model.VisibilityBindingSet) TopologyBuilder(org.apache.kafka.streams.processor.TopologyBuilder) ValueFactoryImpl(org.openrdf.model.impl.ValueFactoryImpl) TopologyFactory(org.apache.rya.streams.kafka.topology.TopologyFactory) ValueFactory(org.openrdf.model.ValueFactory) VisibilityStatement(org.apache.rya.api.model.VisibilityStatement) RandomUUIDFactory(org.apache.rya.api.function.projection.RandomUUIDFactory) MapBindingSet(org.openrdf.query.impl.MapBindingSet) UUID(java.util.UUID) HashSet(java.util.HashSet) Test(org.junit.Test)

Aggregations

MapBindingSet (org.openrdf.query.impl.MapBindingSet)174 Test (org.junit.Test)155 ValueFactory (org.openrdf.model.ValueFactory)99 VisibilityBindingSet (org.apache.rya.api.model.VisibilityBindingSet)96 ValueFactoryImpl (org.openrdf.model.impl.ValueFactoryImpl)91 BindingSet (org.openrdf.query.BindingSet)84 HashSet (java.util.HashSet)81 Statement (org.openrdf.model.Statement)43 URIImpl (org.openrdf.model.impl.URIImpl)31 ArrayList (java.util.ArrayList)30 VisibilityStatement (org.apache.rya.api.model.VisibilityStatement)24 UUID (java.util.UUID)23 PrecomputedJoinStorage (org.apache.rya.indexing.pcj.storage.PrecomputedJoinStorage)20 TopologyFactory (org.apache.rya.streams.kafka.topology.TopologyFactory)20 TopologyBuilder (org.apache.kafka.streams.processor.TopologyBuilder)19 RandomUUIDFactory (org.apache.rya.api.function.projection.RandomUUIDFactory)19 Connector (org.apache.accumulo.core.client.Connector)18 AccumuloPcjStorage (org.apache.rya.indexing.pcj.storage.accumulo.AccumuloPcjStorage)16 PcjMetadata (org.apache.rya.indexing.pcj.storage.PcjMetadata)15 RyaURI (org.apache.rya.api.domain.RyaURI)14