Examples with LineItemGenerator io.airlift.tpch.LineItemGenerator used on opensource projects

Example 1 with LineItemGenerator

use of io.airlift.tpch.LineItemGenerator in project presto by prestodb.

the class BenchmarkPageProcessor method createInputPage.

public static Page createInputPage() {
    PageBuilder pageBuilder = new PageBuilder(ImmutableList.of(DOUBLE, DOUBLE, VARCHAR, DOUBLE));
    LineItemGenerator lineItemGenerator = new LineItemGenerator(1, 1, 1);
    Iterator<LineItem> iterator = lineItemGenerator.iterator();
    for (int i = 0; i < 10_000; i++) {
        pageBuilder.declarePosition();
        LineItem lineItem = iterator.next();
        DOUBLE.writeDouble(pageBuilder.getBlockBuilder(EXTENDED_PRICE), lineItem.getExtendedPrice());
        DOUBLE.writeDouble(pageBuilder.getBlockBuilder(DISCOUNT), lineItem.getDiscount());
        DATE.writeLong(pageBuilder.getBlockBuilder(SHIP_DATE), lineItem.getShipDate());
        DOUBLE.writeDouble(pageBuilder.getBlockBuilder(QUANTITY), lineItem.getQuantity());
    }
    return pageBuilder.build();
}

Example 2 with LineItemGenerator

use of io.airlift.tpch.LineItemGenerator in project presto by prestodb.

the class TestHivePageSink method writeTestFile.

private static long writeTestFile(HiveClientConfig config, ExtendedHiveMetastore metastore, String outputPath) {
    HiveTransactionHandle transaction = new HiveTransactionHandle();
    ConnectorPageSink pageSink = createPageSink(transaction, config, metastore, new Path("file:///" + outputPath));
    List<LineItemColumn> columns = getTestColumns();
    List<Type> columnTypes = columns.stream().map(LineItemColumn::getType).map(TestHivePageSink::getHiveType).map(hiveType -> hiveType.getType(TYPE_MANAGER)).collect(toList());
    PageBuilder pageBuilder = new PageBuilder(columnTypes);
    int rows = 0;
    for (LineItem lineItem : new LineItemGenerator(0.01, 1, 1)) {
        rows++;
        if (rows >= NUM_ROWS) {
            break;
        }
        pageBuilder.declarePosition();
        for (int i = 0; i < columns.size(); i++) {
            LineItemColumn column = columns.get(i);
            BlockBuilder blockBuilder = pageBuilder.getBlockBuilder(i);
            switch(column.getType().getBase()) {
                case IDENTIFIER:
                    BIGINT.writeLong(blockBuilder, column.getIdentifier(lineItem));
                    break;
                case INTEGER:
                    INTEGER.writeLong(blockBuilder, column.getInteger(lineItem));
                    break;
                case DATE:
                    DATE.writeLong(blockBuilder, column.getDate(lineItem));
                    break;
                case DOUBLE:
                    DOUBLE.writeDouble(blockBuilder, column.getDouble(lineItem));
                    break;
                case VARCHAR:
                    createUnboundedVarcharType().writeSlice(blockBuilder, Slices.utf8Slice(column.getString(lineItem)));
                    break;
                default:
                    throw new IllegalArgumentException("Unsupported type " + column.getType());
            }
        }
    }
    Page page = pageBuilder.build();
    pageSink.appendPage(page);
    getFutureValue(pageSink.finish());
    File outputDir = new File(outputPath);
    List<File> files = ImmutableList.copyOf(outputDir.listFiles((dir, name) -> !name.endsWith(".crc")));
    File outputFile = getOnlyElement(files);
    long length = outputFile.length();
    ConnectorPageSource pageSource = createPageSource(transaction, config, outputFile);
    List<Page> pages = new ArrayList<>();
    while (!pageSource.isFinished()) {
        Page nextPage = pageSource.getNextPage();
        if (nextPage != null) {
            nextPage.assureLoaded();
            pages.add(nextPage);
        }
    }
    MaterializedResult expectedResults = toMaterializedResult(getSession(config), columnTypes, ImmutableList.of(page));
    MaterializedResult results = toMaterializedResult(getSession(config), columnTypes, pages);
    assertEquals(results, expectedResults);
    return length;
}

Example 3 with LineItemGenerator

use of io.airlift.tpch.LineItemGenerator in project presto by prestodb.

the class BenchmarkGroupedTopNBuilder method createInputPages.

private static List<Page> createInputPages(int positions, List<Type> types, int positionsPerPage, int groupCount, int seed) {
    Random random = new Random(seed);
    List<Page> pages = new ArrayList<>();
    PageBuilder pageBuilder = new PageBuilder(types);
    LineItemGenerator lineItemGenerator = new LineItemGenerator(1, 1, 1);
    Iterator<LineItem> iterator = lineItemGenerator.iterator();
    for (int i = 0; i < positions; i++) {
        pageBuilder.declarePosition();
        LineItem lineItem = iterator.next();
        BIGINT.writeLong(pageBuilder.getBlockBuilder(HASH_GROUP), groupCount > 1 ? random.nextInt(groupCount) : 1);
        DOUBLE.writeDouble(pageBuilder.getBlockBuilder(EXTENDED_PRICE), lineItem.getExtendedPrice());
        DOUBLE.writeDouble(pageBuilder.getBlockBuilder(DISCOUNT), lineItem.getDiscount());
        DATE.writeLong(pageBuilder.getBlockBuilder(SHIP_DATE), lineItem.getShipDate());
        DOUBLE.writeDouble(pageBuilder.getBlockBuilder(QUANTITY), lineItem.getQuantity());
        if (pageBuilder.getPositionCount() >= positionsPerPage) {
            pages.add(pageBuilder.build());
            pageBuilder.reset();
        }
    }
    if (!pageBuilder.isEmpty()) {
        pages.add(pageBuilder.build());
    }
    return pages;
}

Example 4 with LineItemGenerator

use of io.airlift.tpch.LineItemGenerator in project presto by prestodb.

the class TestHivePageSink method writeTestFile.

private static long writeTestFile(HiveClientConfig config, MetastoreClientConfig metastoreClientConfig, ExtendedHiveMetastore metastore, String outputPath) {
    HiveTransactionHandle transaction = new HiveTransactionHandle();
    HiveWriterStats stats = new HiveWriterStats();
    ConnectorPageSink pageSink = createPageSink(transaction, config, metastoreClientConfig, metastore, new Path("file:///" + outputPath), stats);
    List<LineItemColumn> columns = getTestColumns();
    List<Type> columnTypes = columns.stream().map(LineItemColumn::getType).map(TestHivePageSink::getHiveType).map(hiveType -> hiveType.getType(FUNCTION_AND_TYPE_MANAGER)).collect(toList());
    PageBuilder pageBuilder = new PageBuilder(columnTypes);
    int rows = 0;
    for (LineItem lineItem : new LineItemGenerator(0.01, 1, 1)) {
        rows++;
        if (rows >= NUM_ROWS) {
            break;
        }
        pageBuilder.declarePosition();
        for (int i = 0; i < columns.size(); i++) {
            LineItemColumn column = columns.get(i);
            BlockBuilder blockBuilder = pageBuilder.getBlockBuilder(i);
            switch(column.getType().getBase()) {
                case IDENTIFIER:
                    BIGINT.writeLong(blockBuilder, column.getIdentifier(lineItem));
                    break;
                case INTEGER:
                    INTEGER.writeLong(blockBuilder, column.getInteger(lineItem));
                    break;
                case DATE:
                    DATE.writeLong(blockBuilder, column.getDate(lineItem));
                    break;
                case DOUBLE:
                    DOUBLE.writeDouble(blockBuilder, column.getDouble(lineItem));
                    break;
                case VARCHAR:
                    createUnboundedVarcharType().writeSlice(blockBuilder, Slices.utf8Slice(column.getString(lineItem)));
                    break;
                default:
                    throw new IllegalArgumentException("Unsupported type " + column.getType());
            }
        }
    }
    Page page = pageBuilder.build();
    pageSink.appendPage(page);
    getFutureValue(pageSink.finish());
    File outputDir = new File(outputPath);
    List<File> files = ImmutableList.copyOf(outputDir.listFiles((dir, name) -> !name.endsWith(".crc")));
    File outputFile = getOnlyElement(files);
    long length = outputFile.length();
    ConnectorPageSource pageSource = createPageSource(transaction, config, metastoreClientConfig, outputFile);
    List<Page> pages = new ArrayList<>();
    while (!pageSource.isFinished()) {
        Page nextPage = pageSource.getNextPage();
        if (nextPage != null) {
            pages.add(nextPage.getLoadedPage());
        }
    }
    MaterializedResult expectedResults = toMaterializedResult(getSession(config), columnTypes, ImmutableList.of(page));
    MaterializedResult results = toMaterializedResult(getSession(config), columnTypes, pages);
    assertEquals(results, expectedResults);
    assertEquals(stats.getInputPageSizeInBytes().getAllTime().getMax(), page.getRetainedSizeInBytes());
    return length;
}