public SerializedPage serialize(Page page) { SliceOutput serializationBuffer = new DynamicSliceOutput(toIntExact((page.getSizeInBytes() + Integer.BYTES))); // block length is an int writeRawPage(page, serializationBuffer, blockEncodingSerde); if (!compressor.isPresent()) { return new SerializedPage(serializationBuffer.slice(), UNCOMPRESSED, page.getPositionCount(), serializationBuffer.size()); } int maxCompressedLength = maxCompressedLength(serializationBuffer.size()); byte[] compressionBuffer = new byte[maxCompressedLength]; int actualCompressedLength = compressor.get().compress(serializationBuffer.slice().getBytes(), 0, serializationBuffer.size(), compressionBuffer, 0, maxCompressedLength); if (((1.0 * actualCompressedLength) / serializationBuffer.size()) > MINIMUM_COMPRESSION_RATIO) { return new SerializedPage(serializationBuffer.slice(), UNCOMPRESSED, page.getPositionCount(), serializationBuffer.size()); } return new SerializedPage( Slices.copyOf(Slices.wrappedBuffer(compressionBuffer, 0, actualCompressedLength)), COMPRESSED, page.getPositionCount(), serializationBuffer.size()); }
@Override public int maxCompressedLength(int uncompressedSize) { return Lz4RawCompressor.maxCompressedLength(uncompressedSize); }
@Override public int maxCompressedLength(int uncompressedSize) { return Lz4RawCompressor.maxCompressedLength(uncompressedSize); }
if (maxOutputLength < maxCompressedLength(inputLength)) { throw new IllegalArgumentException("Max output length must be larger than " + maxCompressedLength(inputLength));
if (maxOutputLength < maxCompressedLength(inputLength)) { throw new IllegalArgumentException("Max output length must be larger than " + maxCompressedLength(inputLength));
public SerializedPage serialize(Page page) { SliceOutput serializationBuffer = new DynamicSliceOutput(toIntExact((page.getSizeInBytes() + Integer.BYTES))); // block length is an int writeRawPage(page, serializationBuffer, blockEncodingSerde); if (!compressor.isPresent()) { return new SerializedPage(serializationBuffer.slice(), UNCOMPRESSED, page.getPositionCount(), serializationBuffer.size()); } int maxCompressedLength = maxCompressedLength(serializationBuffer.size()); byte[] compressionBuffer = new byte[maxCompressedLength]; int actualCompressedLength = compressor.get().compress(serializationBuffer.slice().getBytes(), 0, serializationBuffer.size(), compressionBuffer, 0, maxCompressedLength); if (((1.0 * actualCompressedLength) / serializationBuffer.size()) > MINIMUM_COMPRESSION_RATIO) { return new SerializedPage(serializationBuffer.slice(), UNCOMPRESSED, page.getPositionCount(), serializationBuffer.size()); } return new SerializedPage( Slices.copyOf(Slices.wrappedBuffer(compressionBuffer, 0, actualCompressedLength)), COMPRESSED, page.getPositionCount(), serializationBuffer.size()); }
public SerializedPage serialize(Page page) { SliceOutput serializationBuffer = new DynamicSliceOutput(toIntExact((page.getSizeInBytes() + Integer.BYTES))); // block length is an int writeRawPage(page, serializationBuffer, blockEncodingSerde); if (!compressor.isPresent()) { return new SerializedPage(serializationBuffer.slice(), UNCOMPRESSED, page.getPositionCount(), serializationBuffer.size()); } int maxCompressedLength = maxCompressedLength(serializationBuffer.size()); byte[] compressionBuffer = new byte[maxCompressedLength]; int actualCompressedLength = compressor.get().compress(serializationBuffer.slice().getBytes(), 0, serializationBuffer.size(), compressionBuffer, 0, maxCompressedLength); if (((1.0 * actualCompressedLength) / serializationBuffer.size()) > MINIMUM_COMPRESSION_RATIO) { return new SerializedPage(serializationBuffer.slice(), UNCOMPRESSED, page.getPositionCount(), serializationBuffer.size()); } return new SerializedPage( Slices.copyOf(Slices.wrappedBuffer(compressionBuffer, 0, actualCompressedLength)), COMPRESSED, page.getPositionCount(), serializationBuffer.size()); }