Examples with OrcColumnId io.prestosql.orc.metadata.OrcColumnId used on opensource projects

Example 1 with OrcColumnId

use of io.prestosql.orc.metadata.OrcColumnId in project hetu-core by openlookeng.

the class OrcFileTail method readFrom.

public static OrcFileTail readFrom(OrcDataSource orcDataSource, Optional<OrcWriteValidation> writeValidation) throws IOException {
    OrcFileTail orcFileTail = new OrcFileTail();
    // 
    // Read the file tail:
    // 
    // variable: Footer
    // variable: Metadata
    // variable: PostScript - contains length of footer and metadata
    // 1 byte: postScriptSize
    // figure out the size of the file using the option or filesystem
    long size = orcDataSource.getSize();
    if (size <= PostScript.MAGIC.length()) {
        throw new OrcCorruptionException(orcDataSource.getId(), "Invalid file size %s", size);
    }
    // Read the tail of the file
    int expectedBufferSize = toIntExact(min(size, EXPECTED_FOOTER_SIZE));
    Slice buffer = orcDataSource.readFully(size - expectedBufferSize, expectedBufferSize);
    // get length of PostScript - last byte of the file
    int postScriptSize = buffer.getUnsignedByte(buffer.length() - SIZE_OF_BYTE);
    if (postScriptSize >= buffer.length()) {
        throw new OrcCorruptionException(orcDataSource.getId(), "Invalid postscript length %s", postScriptSize);
    }
    MetadataReader metadataReader = new ExceptionWrappingMetadataReader(orcDataSource.getId(), new OrcMetadataReader());
    // decode the post script
    try {
        orcFileTail.postScript = metadataReader.readPostScript(buffer.slice(buffer.length() - SIZE_OF_BYTE - postScriptSize, postScriptSize).getInput());
    } catch (OrcCorruptionException e) {
        // check if this is an ORC file and not an RCFile or something else
        if (!isValidHeaderMagic(orcDataSource)) {
            throw new OrcCorruptionException(orcDataSource.getId(), "Not an ORC file");
        }
        throw e;
    }
    // verify this is a supported version
    checkOrcVersion(orcDataSource, orcFileTail.postScript.getVersion());
    validateWrite(validation -> validation.getVersion().equals(orcFileTail.postScript.getVersion()), writeValidation, orcDataSource, "Unexpected version");
    int bufferSize = toIntExact(orcFileTail.postScript.getCompressionBlockSize());
    // check compression codec is supported
    CompressionKind compressionKind = orcFileTail.postScript.getCompression();
    orcFileTail.decompressor = OrcDecompressor.createOrcDecompressor(orcDataSource.getId(), compressionKind, bufferSize);
    validateWrite(validation -> validation.getCompression() == compressionKind, writeValidation, orcDataSource, "Unexpected compression");
    PostScript.HiveWriterVersion hiveWriterVersion = orcFileTail.postScript.getHiveWriterVersion();
    int footerSize = toIntExact(orcFileTail.postScript.getFooterLength());
    int metadataSize = toIntExact(orcFileTail.postScript.getMetadataLength());
    // check if extra bytes need to be read
    Slice completeFooterSlice;
    int completeFooterSize = footerSize + metadataSize + postScriptSize + SIZE_OF_BYTE;
    if (completeFooterSize > buffer.length()) {
        // initial read was not large enough, so just read again with the correct size
        completeFooterSlice = orcDataSource.readFully(size - completeFooterSize, completeFooterSize);
    } else {
        // footer is already in the bytes in buffer, just adjust position, length
        completeFooterSlice = buffer.slice(buffer.length() - completeFooterSize, completeFooterSize);
    }
    // read metadata
    Slice metadataSlice = completeFooterSlice.slice(0, metadataSize);
    try (InputStream metadataInputStream = new OrcInputStream(OrcChunkLoader.create(orcDataSource.getId(), metadataSlice, orcFileTail.decompressor, newSimpleAggregatedMemoryContext()))) {
        orcFileTail.metadata = metadataReader.readMetadata(hiveWriterVersion, metadataInputStream);
    }
    // read footer
    Slice footerSlice = completeFooterSlice.slice(metadataSize, footerSize);
    try (InputStream footerInputStream = new OrcInputStream(OrcChunkLoader.create(orcDataSource.getId(), footerSlice, orcFileTail.decompressor, newSimpleAggregatedMemoryContext()))) {
        orcFileTail.footer = metadataReader.readFooter(hiveWriterVersion, footerInputStream);
    }
    if (orcFileTail.footer.getTypes().size() == 0) {
        throw new OrcCorruptionException(orcDataSource.getId(), "File has no columns");
    }
    validateWrite(validation -> validation.getColumnNames().equals(orcFileTail.footer.getTypes().get(new OrcColumnId(0)).getFieldNames()), writeValidation, orcDataSource, "Unexpected column names");
    validateWrite(validation -> validation.getRowGroupMaxRowCount() == orcFileTail.footer.getRowsInRowGroup(), writeValidation, orcDataSource, "Unexpected rows in group");
    if (writeValidation.isPresent()) {
        writeValidation.get().validateMetadata(orcDataSource.getId(), orcFileTail.footer.getUserMetadata());
        writeValidation.get().validateFileStatistics(orcDataSource.getId(), orcFileTail.footer.getFileStats());
        writeValidation.get().validateStripeStatistics(orcDataSource.getId(), orcFileTail.footer.getStripes(), orcFileTail.metadata.getStripeStatsList());
    }
    return orcFileTail;
}

Example 2 with OrcColumnId

use of io.prestosql.orc.metadata.OrcColumnId in project hetu-core by openlookeng.

the class StripeReader method readBloomFilterIndexes.

private Map<OrcColumnId, List<HashableBloomFilter>> readBloomFilterIndexes(Map<StreamId, Stream> streams, Map<StreamId, OrcChunkLoader> streamsData, StripeInformation stripe) throws IOException {
    HashMap<OrcColumnId, List<HashableBloomFilter>> bloomFilters = new HashMap<>();
    for (Entry<StreamId, Stream> entry : streams.entrySet()) {
        Stream stream = entry.getValue();
        if (stream.getStreamKind() == BLOOM_FILTER_UTF8) {
            OrcInputStream inputStream = new OrcInputStream(streamsData.get(entry.getKey()));
            if (orcCacheProperties.isBloomFilterCacheEnabled()) {
                OrcBloomFilterCacheKey bloomFilterCacheKey = new OrcBloomFilterCacheKey();
                bloomFilterCacheKey.setOrcDataSourceId(new OrcDataSourceIdWithTimeStamp(orcDataSource.getId(), orcDataSource.getLastModifiedTime()));
                bloomFilterCacheKey.setStripeOffset(stripe.getOffset());
                bloomFilterCacheKey.setStreamId(entry.getKey());
                try {
                    bloomFilters.put(stream.getColumnId(), orcCacheStore.getBloomFiltersCache().get(bloomFilterCacheKey, () -> metadataReader.readBloomFilterIndexes(inputStream)));
                } catch (UncheckedExecutionException | ExecutionException executionException) {
                    handleCacheLoadException(executionException);
                    log.debug(executionException.getCause(), "Error while caching bloom filters. Falling back to default flow");
                    bloomFilters.put(stream.getColumnId(), metadataReader.readBloomFilterIndexes(inputStream));
                }
            } else {
                bloomFilters.put(stream.getColumnId(), metadataReader.readBloomFilterIndexes(inputStream));
            }
        }
    }
    for (Entry<StreamId, Stream> entry : streams.entrySet()) {
        Stream stream = entry.getValue();
        if (stream.getStreamKind() == BLOOM_FILTER && !bloomFilters.containsKey(stream.getColumnId())) {
            OrcInputStream inputStream = new OrcInputStream(streamsData.get(entry.getKey()));
            if (orcCacheProperties.isBloomFilterCacheEnabled()) {
                OrcBloomFilterCacheKey bloomFilterCacheKey = new OrcBloomFilterCacheKey();
                bloomFilterCacheKey.setOrcDataSourceId(new OrcDataSourceIdWithTimeStamp(orcDataSource.getId(), orcDataSource.getLastModifiedTime()));
                bloomFilterCacheKey.setStripeOffset(stripe.getOffset());
                bloomFilterCacheKey.setStreamId(entry.getKey());
                try {
                    bloomFilters.put(entry.getKey().getColumnId(), orcCacheStore.getBloomFiltersCache().get(bloomFilterCacheKey, () -> metadataReader.readBloomFilterIndexes(inputStream)));
                } catch (UncheckedExecutionException | ExecutionException executionException) {
                    handleCacheLoadException(executionException);
                    log.debug(executionException.getCause(), "Error while caching bloom filters. Falling back to default flow");
                    bloomFilters.put(entry.getKey().getColumnId(), metadataReader.readBloomFilterIndexes(inputStream));
                }
            } else {
                bloomFilters.put(entry.getKey().getColumnId(), metadataReader.readBloomFilterIndexes(inputStream));
            }
        }
    }
    return ImmutableMap.copyOf(bloomFilters);
}

Example 3 with OrcColumnId

use of io.prestosql.orc.metadata.OrcColumnId in project hetu-core by openlookeng.

the class TestAbstractNumbericColumnReader method testTypeCoercionDate.

@Test
public void testTypeCoercionDate() throws OrcCorruptionException {
    OrcColumn column = new OrcColumn("hdfs://hacluster/user/hive/warehouse/tpcds_orc_hive_1000.db/catalog_sales/cs_sold_date_sk=2452268/000896_0", new OrcColumnId(3), "cs_order_number", OrcType.OrcTypeKind.DATE, new OrcDataSourceId("hdfs://hacluster/user/hive/warehouse/tpcds_orc_hive_1000.db/catalog_sales/cs_sold_date_sk=2452268/000896_0"), ImmutableList.of());
    ColumnReader actualDateColumnReader = ColumnReaders.createColumnReader(type, column, AggregatedMemoryContext.newSimpleAggregatedMemoryContext(), null);
    DateColumnReader expectedDateColumnReader = new DateColumnReader(type, column, AggregatedMemoryContext.newSimpleAggregatedMemoryContext().newLocalMemoryContext(ColumnReaders.class.getSimpleName()));
    assertEquals(actualDateColumnReader.toString(), expectedDateColumnReader.toString());
}

Example 4 with OrcColumnId

use of io.prestosql.orc.metadata.OrcColumnId in project hetu-core by openlookeng.

the class TestAbstractNumbericColumnReader method testTypeCoercionBigInt.

@Test
public void testTypeCoercionBigInt() throws OrcCorruptionException {
    OrcColumn column = new OrcColumn("hdfs://hacluster/user/hive/warehouse/tpcds_orc_hive_1000.db/catalog_sales/cs_sold_date_sk=2452268/000896_0", new OrcColumnId(3), "cs_order_number", OrcType.OrcTypeKind.LONG, new OrcDataSourceId("hdfs://hacluster/user/hive/warehouse/tpcds_orc_hive_1000.db/catalog_sales/cs_sold_date_sk=2452268/000896_0"), ImmutableList.of());
    ColumnReader actualLongColumnReader = ColumnReaders.createColumnReader(type, column, AggregatedMemoryContext.newSimpleAggregatedMemoryContext(), null);
    LongColumnReader expectedLongColumnReader = new LongColumnReader(type, column, AggregatedMemoryContext.newSimpleAggregatedMemoryContext().newLocalMemoryContext(ColumnReaders.class.getSimpleName()));
    assertEquals(actualLongColumnReader.toString(), expectedLongColumnReader.toString());
}

Example 5 with OrcColumnId

use of io.prestosql.orc.metadata.OrcColumnId in project hetu-core by openlookeng.

the class MapColumnWriter method finishRowGroup.

@Override
public Map<OrcColumnId, ColumnStatistics> finishRowGroup() {
    checkState(!closed);
    ColumnStatistics statistics = new ColumnStatistics((long) nonNullValueCount, 0, null, null, null, null, null, null, null, null);
    rowGroupColumnStatistics.add(statistics);
    nonNullValueCount = 0;
    ImmutableMap.Builder<OrcColumnId, ColumnStatistics> columnStatistics = ImmutableMap.builder();
    columnStatistics.put(columnId, statistics);
    columnStatistics.putAll(keyWriter.finishRowGroup());
    columnStatistics.putAll(valueWriter.finishRowGroup());
    return columnStatistics.build();
}