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

Example 1 with LineItemColumn

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

the class TestHivePageSink method getColumnHandles.

private static List<HiveColumnHandle> getColumnHandles() {
    ImmutableList.Builder<HiveColumnHandle> handles = ImmutableList.builder();
    List<LineItemColumn> columns = getTestColumns();
    for (int i = 0; i < columns.size(); i++) {
        LineItemColumn column = columns.get(i);
        HiveType hiveType = getHiveType(column.getType());
        handles.add(new HiveColumnHandle(CLIENT_ID, column.getColumnName(), hiveType, hiveType.getTypeSignature(), i, REGULAR, Optional.empty()));
    }
    return handles.build();
}

Example 2 with LineItemColumn

use of io.airlift.tpch.LineItemColumn 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;
}