Examples with DwrfWriterEncryption com.facebook.presto.orc.DwrfWriterEncryption used on opensource projects

Example 1 with DwrfWriterEncryption

use of com.facebook.presto.orc.DwrfWriterEncryption in project presto by prestodb.

the class OrcFileWriterFactory method createDwrfEncryption.

private Optional<DwrfWriterEncryption> createDwrfEncryption(Optional<EncryptionInformation> encryptionInformation, List<String> fileColumnNames, List<Type> types) {
    if (!encryptionInformation.isPresent()) {
        return Optional.empty();
    }
    if (!encryptionInformation.get().getDwrfEncryptionMetadata().isPresent()) {
        return Optional.empty();
    }
    DwrfEncryptionMetadata dwrfEncryptionMetadata = encryptionInformation.get().getDwrfEncryptionMetadata().get();
    List<OrcType> orcTypes = OrcType.createOrcRowType(0, fileColumnNames, types);
    Map<String, Integer> columnNamesMap = IntStream.range(0, fileColumnNames.size()).boxed().collect(toImmutableMap(fileColumnNames::get, index -> index));
    Map<Integer, Slice> keyMap = dwrfEncryptionMetadata.toKeyMap(orcTypes, columnNamesMap);
    ImmutableListMultimap.Builder<Slice, Integer> encryptionGroupsBuilder = ImmutableListMultimap.builder();
    keyMap.entrySet().stream().forEach(entry -> encryptionGroupsBuilder.put(entry.getValue(), entry.getKey()));
    ImmutableListMultimap<Slice, Integer> encryptionGroups = encryptionGroupsBuilder.build();
    List<WriterEncryptionGroup> writerEncryptionGroups = encryptionGroups.keySet().stream().map(key -> new WriterEncryptionGroup(encryptionGroups.get(key), key)).collect(toImmutableList());
    return Optional.of(new DwrfWriterEncryption(toKeyProvider(dwrfEncryptionMetadata.getEncryptionProvider()), writerEncryptionGroups));
}

Example 2 with DwrfWriterEncryption

use of com.facebook.presto.orc.DwrfWriterEncryption in project presto by prestodb.

the class OrcFileWriterFactory method createFileWriter.

@Override
public Optional<HiveFileWriter> createFileWriter(Path path, List<String> inputColumnNames, StorageFormat storageFormat, Properties schema, JobConf configuration, ConnectorSession session, Optional<EncryptionInformation> encryptionInformation) {
    if (!HiveSessionProperties.isOrcOptimizedWriterEnabled(session)) {
        return Optional.empty();
    }
    OrcEncoding orcEncoding;
    if (OrcOutputFormat.class.getName().equals(storageFormat.getOutputFormat())) {
        orcEncoding = ORC;
    } else if (com.facebook.hive.orc.OrcOutputFormat.class.getName().equals(storageFormat.getOutputFormat())) {
        orcEncoding = DWRF;
    } else {
        return Optional.empty();
    }
    CompressionKind compression = getCompression(schema, configuration, orcEncoding);
    // existing tables and partitions may have columns in a different order than the writer is providing, so build
    // an index to rearrange columns in the proper order
    List<String> fileColumnNames = Splitter.on(',').trimResults().omitEmptyStrings().splitToList(schema.getProperty(META_TABLE_COLUMNS, ""));
    List<Type> fileColumnTypes = toHiveTypes(schema.getProperty(META_TABLE_COLUMN_TYPES, "")).stream().map(hiveType -> hiveType.getType(typeManager)).collect(toList());
    int[] fileInputColumnIndexes = fileColumnNames.stream().mapToInt(inputColumnNames::indexOf).toArray();
    try {
        FileSystem fileSystem = hdfsEnvironment.getFileSystem(session.getUser(), path, configuration);
        DataSink dataSink = createDataSink(session, fileSystem, path);
        Optional<Supplier<OrcDataSource>> validationInputFactory = Optional.empty();
        if (HiveSessionProperties.isOrcOptimizedWriterValidate(session)) {
            validationInputFactory = Optional.of(() -> {
                try {
                    return new HdfsOrcDataSource(new OrcDataSourceId(path.toString()), fileSystem.getFileStatus(path).getLen(), getOrcMaxMergeDistance(session), getOrcMaxBufferSize(session), getOrcStreamBufferSize(session), false, fileSystem.open(path), readStats);
                } catch (IOException e) {
                    throw new PrestoException(HIVE_WRITE_VALIDATION_FAILED, e);
                }
            });
        }
        Callable<Void> rollbackAction = () -> {
            fileSystem.delete(path, false);
            return null;
        };
        Optional<DwrfWriterEncryption> dwrfWriterEncryption = createDwrfEncryption(encryptionInformation, fileColumnNames, fileColumnTypes);
        return Optional.of(new OrcFileWriter(dataSink, rollbackAction, orcEncoding, fileColumnNames, fileColumnTypes, compression, orcFileWriterConfig.toOrcWriterOptionsBuilder().withFlushPolicy(DefaultOrcWriterFlushPolicy.builder().withStripeMinSize(getOrcOptimizedWriterMinStripeSize(session)).withStripeMaxSize(getOrcOptimizedWriterMaxStripeSize(session)).withStripeMaxRowCount(getOrcOptimizedWriterMaxStripeRows(session)).build()).withDictionaryMaxMemory(getOrcOptimizedWriterMaxDictionaryMemory(session)).withMaxStringStatisticsLimit(getOrcStringStatisticsLimit(session)).withIgnoreDictionaryRowGroupSizes(isExecutionBasedMemoryAccountingEnabled(session)).withDwrfStripeCacheEnabled(isDwrfWriterStripeCacheEnabled(session)).withDwrfStripeCacheMaxSize(getDwrfWriterStripeCacheeMaxSize(session)).build(), fileInputColumnIndexes, ImmutableMap.<String, String>builder().put(HiveMetadata.PRESTO_VERSION_NAME, nodeVersion.toString()).put(MetastoreUtil.PRESTO_QUERY_ID_NAME, session.getQueryId()).build(), hiveStorageTimeZone, validationInputFactory, getOrcOptimizedWriterValidateMode(session), stats, dwrfEncryptionProvider, dwrfWriterEncryption));
    } catch (IOException e) {
        throw new PrestoException(HIVE_WRITER_OPEN_ERROR, "Error creating " + orcEncoding + " file. " + e.getMessage(), e);
    }
}