Package com.facebook.presto.operator

Examples of com.facebook.presto.operator.Driver.process()

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            HashBuilderOperatorFactory hashBuilder = new HashBuilderOperatorFactory(1, ordersTableScan.getTypes(), Ints.asList(0), 1_500_000);

            DriverContext driverContext = taskContext.addPipelineContext(false, false).addDriverContext();
            Driver driver = new DriverFactory(false, false, ordersTableScan, hashBuilder).createDriver(driverContext);
            while (!driver.isFinished()) {
                driver.process();
            }
            lookupSourceSupplier = hashBuilder.getLookupSourceSupplier();
        }

        OperatorFactory lineItemTableScan = createTableScanOperator(0, "lineitem", "orderkey", "quantity");
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        {
            // Drive index lookup to produce the output (landing in pagesIndexOutput)
            Driver driver = driverFactory.createDriver(pipelineContext.addDriverContext());
            driver.updateSource(new TaskSource(sourcePlanNodeId, ImmutableSet.of(new ScheduledSplit(0, new Split("index", new IndexSplit(unloadedKeysRecordSet)))), true));
            while (!driver.isFinished()) {
                ListenableFuture<?> process = driver.process();
                checkState(process.isDone(), "Driver should never block");
            }

            // Create lookup source with new data
            LookupSource lookupSource = pagesIndex.createLookupSource(indexChannels);
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            HashBuilderOperatorFactory hashBuilder = new HashBuilderOperatorFactory(1, ordersTableScan.getTypes(), Ints.asList(0), 1_500_000);

            DriverContext driverContext = taskContext.addPipelineContext(false, false).addDriverContext();
            Driver driver = new DriverFactory(false, false, ordersTableScan, hashBuilder).createDriver(driverContext);
            while (!driver.isFinished()) {
                driver.process();
            }
            lookupSourceSupplier = hashBuilder.getLookupSourceSupplier();
        }

        OperatorFactory lineItemTableScan = createTableScanOperator(0, "lineitem", "orderkey", "quantity");
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        {
            // Drive index lookup to produce the output (landing in pagesIndexOutput)
            Driver driver = driverFactory.createDriver(pipelineContext.addDriverContext());
            driver.updateSource(new TaskSource(sourcePlanNodeId, ImmutableSet.of(new ScheduledSplit(0, new Split("index", new IndexSplit(unloadedKeysRecordSet)))), true));
            while (!driver.isFinished()) {
                ListenableFuture<?> process = driver.process();
                checkState(process.isDone(), "Driver should never block");
            }

            // Create lookup source with new data
            LookupSource lookupSource = pagesIndex.createLookupSource(indexChannels);
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            HashBuilderOperatorFactory hashBuilder = new HashBuilderOperatorFactory(1, ordersTableScan.getTupleInfos(), 0, 1_500_000);

            DriverContext driverContext = taskContext.addPipelineContext(false, false).addDriverContext();
            Driver driver = new DriverFactory(false, false, ordersTableScan, hashBuilder).createDriver(driverContext);
            while (!driver.isFinished()) {
                driver.process();
            }
            hashSupplier = hashBuilder.getHashSupplier();
        }

        BlockIterable lineItemOrderKey = getBlockIterable("lineitem", "orderkey", BlocksFileEncoding.RAW);
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        {
            // Drive index lookup to produce the output (landing in pagesIndexOutput)
            Driver driver = driverFactory.createDriver(pipelineContext.addDriverContext());
            driver.updateSource(new TaskSource(sourcePlanNodeId, ImmutableSet.of(new ScheduledSplit(0, new Split("index", new IndexSplit(unloadedKeysRecordSet)))), true));
            while (!driver.isFinished()) {
                ListenableFuture<?> process = driver.process();
                checkState(process.isDone(), "Driver should never block");
            }

            // Create lookup source with new data
            LookupSource lookupSource = pagesIndex.createLookupSource(indexChannels);
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            HashBuilderOperatorFactory hashBuilder = new HashBuilderOperatorFactory(1, ordersTableScan.getTupleInfos(), Ints.asList(0), 1_500_000);

            DriverContext driverContext = taskContext.addPipelineContext(false, false).addDriverContext();
            Driver driver = new DriverFactory(false, false, ordersTableScan, hashBuilder).createDriver(driverContext);
            while (!driver.isFinished()) {
                driver.process();
            }
            hashSupplier = hashBuilder.getHashSupplier();
        }

        BlockIterable lineItemOrderKey = getBlockIterable("lineitem", "orderkey", BlocksFileEncoding.RAW);
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            // Drive index lookup to produce the output (landing in pagesIndexOutput)
            Driver driver = driverFactory.createDriver(pipelineContext.addDriverContext());
            driver.updateSource(new TaskSource(sourcePlanNodeId, ImmutableSet.of(new ScheduledSplit(0, new Split("index", new IndexSplit(unloadedKeysRecordSet)))), true));
            while (!driver.isFinished()) {
                ListenableFuture<?> process = driver.process();
                checkState(process.isDone(), "Driver should never block");
            }

            if (indexSnapshotBuilder.isMemoryExceeded()) {
                clearCachedData();
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            HashBuilderOperatorFactory hashBuilder = new HashBuilderOperatorFactory(1, ordersTableScan.getTypes(), Ints.asList(0), 1_500_000);

            DriverContext driverContext = taskContext.addPipelineContext(false, false).addDriverContext();
            Driver driver = new DriverFactory(false, false, ordersTableScan, hashBuilder).createDriver(driverContext);
            while (!driver.isFinished()) {
                driver.process();
            }
            lookupSourceSupplier = hashBuilder.getLookupSourceSupplier();
        }

        OperatorFactory lineItemTableScan = createTableScanOperator(0, "lineitem", "orderkey", "quantity");
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            HashBuilderOperatorFactory hashBuilder = new HashBuilderOperatorFactory(1, ordersTableScan.getTypes(), Ints.asList(0), 1_500_000);

            DriverContext driverContext = taskContext.addPipelineContext(false, false).addDriverContext();
            Driver driver = new DriverFactory(false, false, ordersTableScan, hashBuilder).createDriver(driverContext);
            while (!driver.isFinished()) {
                driver.process();
            }
            lookupSourceSupplier = hashBuilder.getLookupSourceSupplier();
        }

        OperatorFactory lineItemTableScan = createTableScanOperator(0, "lineitem", "orderkey", "quantity");
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