Examples with OutputStreamOrcDataSink io.trino.orc.OutputStreamOrcDataSink used on opensource projects

Example 1 with OutputStreamOrcDataSink

use of io.trino.orc.OutputStreamOrcDataSink in project trino by trinodb.

the class IcebergFileWriterFactory method createOrcWriter.

private IcebergFileWriter createOrcWriter(MetricsConfig metricsConfig, Path outputPath, Schema icebergSchema, JobConf jobConf, ConnectorSession session) {
    try {
        FileSystem fileSystem = hdfsEnvironment.getFileSystem(session.getIdentity(), outputPath, jobConf);
        OrcDataSink orcDataSink = hdfsEnvironment.doAs(session.getIdentity(), () -> new OutputStreamOrcDataSink(fileSystem.create(outputPath)));
        Callable<Void> rollbackAction = () -> {
            hdfsEnvironment.doAs(session.getIdentity(), () -> fileSystem.delete(outputPath, false));
            return null;
        };
        List<Types.NestedField> columnFields = icebergSchema.columns();
        List<String> fileColumnNames = columnFields.stream().map(Types.NestedField::name).collect(toImmutableList());
        List<Type> fileColumnTypes = columnFields.stream().map(Types.NestedField::type).map(type -> toTrinoType(type, typeManager)).collect(toImmutableList());
        Optional<Supplier<OrcDataSource>> validationInputFactory = Optional.empty();
        if (isOrcWriterValidate(session)) {
            validationInputFactory = Optional.of(() -> {
                try {
                    return new HdfsOrcDataSource(new OrcDataSourceId(outputPath.toString()), hdfsEnvironment.doAs(session.getIdentity(), () -> fileSystem.getFileStatus(outputPath).getLen()), new OrcReaderOptions(), hdfsEnvironment.doAs(session.getIdentity(), () -> fileSystem.open(outputPath)), readStats);
                } catch (IOException e) {
                    throw new TrinoException(ICEBERG_WRITE_VALIDATION_FAILED, e);
                }
            });
        }
        return new IcebergOrcFileWriter(metricsConfig, icebergSchema, orcDataSink, rollbackAction, fileColumnNames, fileColumnTypes, toOrcType(icebergSchema), getCompressionCodec(session).getOrcCompressionKind(), orcWriterOptions.withStripeMinSize(getOrcWriterMinStripeSize(session)).withStripeMaxSize(getOrcWriterMaxStripeSize(session)).withStripeMaxRowCount(getOrcWriterMaxStripeRows(session)).withDictionaryMaxMemory(getOrcWriterMaxDictionaryMemory(session)).withMaxStringStatisticsLimit(getOrcStringStatisticsLimit(session)), IntStream.range(0, fileColumnNames.size()).toArray(), ImmutableMap.<String, String>builder().put(PRESTO_VERSION_NAME, nodeVersion.toString()).put(PRESTO_QUERY_ID_NAME, session.getQueryId()).buildOrThrow(), validationInputFactory, getOrcWriterValidateMode(session), orcWriterStats);
    } catch (IOException e) {
        throw new TrinoException(ICEBERG_WRITER_OPEN_ERROR, "Error creating ORC file", e);
    }
}