Examples with LazySequence org.apache.druid.java.util.common.guava.LazySequence used on opensource projects

Example 1 with LazySequence

use of org.apache.druid.java.util.common.guava.LazySequence in project druid by druid-io.

the class SqlResourceTest method setUp.

@Before
public void setUp() throws Exception {
    final QueryScheduler scheduler = new QueryScheduler(5, ManualQueryPrioritizationStrategy.INSTANCE, new HiLoQueryLaningStrategy(40), new ServerConfig()) {

        @Override
        public <T> Sequence<T> run(Query<?> query, Sequence<T> resultSequence) {
            return super.run(query, new LazySequence<T>(() -> {
                if (sleep) {
                    try {
                        // pretend to be a query that is waiting on results
                        Thread.sleep(500);
                    } catch (InterruptedException ignored) {
                    }
                }
                return resultSequence;
            }));
        }
    };
    executorService = MoreExecutors.listeningDecorator(Execs.multiThreaded(8, "test_sql_resource_%s"));
    walker = CalciteTests.createMockWalker(conglomerate, temporaryFolder.newFolder(), scheduler);
    final PlannerConfig plannerConfig = new PlannerConfig() {

        @Override
        public boolean shouldSerializeComplexValues() {
            return false;
        }
    };
    final DruidSchemaCatalog rootSchema = CalciteTests.createMockRootSchema(conglomerate, walker, plannerConfig, CalciteTests.TEST_AUTHORIZER_MAPPER);
    final DruidOperatorTable operatorTable = CalciteTests.createOperatorTable();
    final ExprMacroTable macroTable = CalciteTests.createExprMacroTable();
    req = EasyMock.createStrictMock(HttpServletRequest.class);
    EasyMock.expect(req.getRemoteAddr()).andReturn(null).once();
    EasyMock.expect(req.getAttribute(AuthConfig.DRUID_AUTHENTICATION_RESULT)).andReturn(CalciteTests.REGULAR_USER_AUTH_RESULT).anyTimes();
    EasyMock.expect(req.getAttribute(AuthConfig.DRUID_ALLOW_UNSECURED_PATH)).andReturn(null).anyTimes();
    EasyMock.expect(req.getAttribute(AuthConfig.DRUID_AUTHORIZATION_CHECKED)).andReturn(null).anyTimes();
    EasyMock.expect(req.getAttribute(AuthConfig.DRUID_AUTHENTICATION_RESULT)).andReturn(CalciteTests.REGULAR_USER_AUTH_RESULT).anyTimes();
    req.setAttribute(AuthConfig.DRUID_AUTHORIZATION_CHECKED, true);
    EasyMock.expectLastCall().anyTimes();
    EasyMock.expect(req.getAttribute(AuthConfig.DRUID_AUTHENTICATION_RESULT)).andReturn(CalciteTests.REGULAR_USER_AUTH_RESULT).anyTimes();
    EasyMock.replay(req);
    testRequestLogger = new TestRequestLogger();
    final PlannerFactory plannerFactory = new PlannerFactory(rootSchema, CalciteTests.createMockQueryMakerFactory(walker, conglomerate), operatorTable, macroTable, plannerConfig, CalciteTests.TEST_AUTHORIZER_MAPPER, CalciteTests.getJsonMapper(), CalciteTests.DRUID_SCHEMA_NAME);
    lifecycleManager = new SqlLifecycleManager() {

        @Override
        public void add(String sqlQueryId, SqlLifecycle lifecycle) {
            super.add(sqlQueryId, lifecycle);
            if (lifecycleAddLatch != null) {
                lifecycleAddLatch.countDown();
            }
        }
    };
    final ServiceEmitter emitter = new NoopServiceEmitter();
    sqlLifecycleFactory = new SqlLifecycleFactory(plannerFactory, emitter, testRequestLogger, scheduler) {

        @Override
        public SqlLifecycle factorize() {
            return new TestSqlLifecycle(plannerFactory, emitter, testRequestLogger, scheduler, System.currentTimeMillis(), System.nanoTime(), validateAndAuthorizeLatchSupplier, planLatchSupplier, executeLatchSupplier, sequenceMapFnSupplier);
        }
    };
    resource = new SqlResource(JSON_MAPPER, CalciteTests.TEST_AUTHORIZER_MAPPER, sqlLifecycleFactory, lifecycleManager, new ServerConfig());
}

Example 2 with LazySequence

use of org.apache.druid.java.util.common.guava.LazySequence in project druid by druid-io.

the class QueryResourceTest method createScheduledQueryResource.

private void createScheduledQueryResource(QueryScheduler scheduler, Collection<CountDownLatch> beforeScheduler, Collection<CountDownLatch> inScheduler) {
    QuerySegmentWalker texasRanger = new QuerySegmentWalker() {

        @Override
        public <T> QueryRunner<T> getQueryRunnerForIntervals(Query<T> query, Iterable<Interval> intervals) {
            return (queryPlus, responseContext) -> {
                beforeScheduler.forEach(CountDownLatch::countDown);
                return scheduler.run(scheduler.prioritizeAndLaneQuery(queryPlus, ImmutableSet.of()), new LazySequence<T>(() -> {
                    inScheduler.forEach(CountDownLatch::countDown);
                    try {
                        // pretend to be a query that is waiting on results
                        Thread.sleep(500);
                    } catch (InterruptedException ignored) {
                    }
                    // all that waiting for nothing :(
                    return Sequences.empty();
                }));
            };
        }

        @Override
        public <T> QueryRunner<T> getQueryRunnerForSegments(Query<T> query, Iterable<SegmentDescriptor> specs) {
            return getQueryRunnerForIntervals(null, null);
        }
    };
    queryResource = new QueryResource(new QueryLifecycleFactory(WAREHOUSE, texasRanger, new DefaultGenericQueryMetricsFactory(), new NoopServiceEmitter(), testRequestLogger, new AuthConfig(), AuthTestUtils.TEST_AUTHORIZER_MAPPER, Suppliers.ofInstance(new DefaultQueryConfig(ImmutableMap.of()))), jsonMapper, smileMapper, scheduler, new AuthConfig(), null, ResponseContextConfig.newConfig(true), DRUID_NODE);
}

Example 3 with LazySequence

use of org.apache.druid.java.util.common.guava.LazySequence in project druid by druid-io.

the class TestClusterQuerySegmentWalker method getQueryRunnerForSegments.

@Override
public <T> QueryRunner<T> getQueryRunnerForSegments(final Query<T> query, final Iterable<SegmentDescriptor> specs) {
    final QueryRunnerFactory<T, Query<T>> factory = conglomerate.findFactory(query);
    if (factory == null) {
        throw new ISE("Unknown query type[%s].", query.getClass());
    }
    final DataSourceAnalysis analysis = DataSourceAnalysis.forDataSource(query.getDataSource());
    if (!analysis.isConcreteTableBased()) {
        throw new ISE("Cannot handle datasource: %s", query.getDataSource());
    }
    final String dataSourceName = ((TableDataSource) analysis.getBaseDataSource()).getName();
    final QueryToolChest<T, Query<T>> toolChest = factory.getToolchest();
    // Make sure this query type can handle the subquery, if present.
    if (analysis.isQuery() && !toolChest.canPerformSubquery(((QueryDataSource) analysis.getDataSource()).getQuery())) {
        throw new ISE("Cannot handle subquery: %s", analysis.getDataSource());
    }
    final Function<SegmentReference, SegmentReference> segmentMapFn = joinableFactoryWrapper.createSegmentMapFn(analysis.getJoinBaseTableFilter().map(Filters::toFilter).orElse(null), analysis.getPreJoinableClauses(), new AtomicLong(), analysis.getBaseQuery().orElse(query));
    final QueryRunner<T> baseRunner = new FinalizeResultsQueryRunner<>(toolChest.postMergeQueryDecoration(toolChest.mergeResults(toolChest.preMergeQueryDecoration(makeTableRunner(toolChest, factory, getSegmentsForTable(dataSourceName, specs), segmentMapFn)))), toolChest);
    // to actually serve the queries
    return (theQuery, responseContext) -> {
        responseContext.initializeRemainingResponses();
        responseContext.addRemainingResponse(theQuery.getQuery().getMostSpecificId(), 0);
        if (scheduler != null) {
            Set<SegmentServerSelector> segments = new HashSet<>();
            specs.forEach(spec -> segments.add(new SegmentServerSelector(spec)));
            return scheduler.run(scheduler.prioritizeAndLaneQuery(theQuery, segments), new LazySequence<>(() -> baseRunner.run(theQuery.withQuery(Queries.withSpecificSegments(theQuery.getQuery(), ImmutableList.copyOf(specs))), responseContext)));
        } else {
            return baseRunner.run(theQuery.withQuery(Queries.withSpecificSegments(theQuery.getQuery(), ImmutableList.copyOf(specs))), responseContext);
        }
    };
}