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ARROW-10880: [Java] Support compressing RecordBatch IPC buffers by LZ4 #8949
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| <?xml version="1.0"?> | ||
| <!-- Licensed to the Apache Software Foundation (ASF) under one or more contributor | ||
| license agreements. See the NOTICE file distributed with this work for additional | ||
| information regarding copyright ownership. The ASF licenses this file to | ||
| You under the Apache License, Version 2.0 (the "License"); you may not use | ||
| this file except in compliance with the License. You may obtain a copy of | ||
| the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required | ||
| by applicable law or agreed to in writing, software distributed under the | ||
| License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS | ||
| OF ANY KIND, either express or implied. See the License for the specific | ||
| language governing permissions and limitations under the License. --> | ||
| <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> | ||
| <modelVersion>4.0.0</modelVersion> | ||
| <parent> | ||
| <groupId>org.apache.arrow</groupId> | ||
| <artifactId>arrow-java-root</artifactId> | ||
| <version>4.0.0-SNAPSHOT</version> | ||
| </parent> | ||
| <artifactId>arrow-compression</artifactId> | ||
| <name>Arrow Compression</name> | ||
| <description>(Experimental/Contrib) A library for working with the compression/decompression of Arrow data.</description> | ||
|
|
||
| <dependencies> | ||
| <dependency> | ||
| <groupId>org.apache.arrow</groupId> | ||
| <artifactId>arrow-vector</artifactId> | ||
| <version>${project.version}</version> | ||
| <classifier>${arrow.vector.classifier}</classifier> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.apache.arrow</groupId> | ||
| <artifactId>arrow-memory-core</artifactId> | ||
| <version>${project.version}</version> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.apache.arrow</groupId> | ||
| <artifactId>arrow-memory-unsafe</artifactId> | ||
| <version>${project.version}</version> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.apache.commons</groupId> | ||
| <artifactId>commons-compress</artifactId> | ||
| <version>1.20</version> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>io.netty</groupId> | ||
| <artifactId>netty-common</artifactId> | ||
| </dependency> | ||
| </dependencies> | ||
| </project> | ||
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| * (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package org.apache.arrow.compression; | ||
|
|
||
| import org.apache.arrow.vector.compression.CompressionCodec; | ||
| import org.apache.arrow.vector.compression.CompressionUtil; | ||
|
|
||
| /** | ||
| * A factory implementation based on Apache Commons library. | ||
| */ | ||
| public class CommonsCompressionFactory implements CompressionCodec.Factory { | ||
|
|
||
| public static final CommonsCompressionFactory INSTANCE = new CommonsCompressionFactory(); | ||
|
|
||
| @Override | ||
| public CompressionCodec createCodec(CompressionUtil.CodecType codecType) { | ||
| switch (codecType) { | ||
| case LZ4_FRAME: | ||
| return new Lz4CompressionCodec(); | ||
| default: | ||
| throw new IllegalArgumentException("Compression type not supported: " + codecType); | ||
| } | ||
| } | ||
| } |
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,157 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| * (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package org.apache.arrow.compression; | ||
|
|
||
| import java.io.ByteArrayInputStream; | ||
| import java.io.ByteArrayOutputStream; | ||
| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.io.OutputStream; | ||
|
|
||
| import org.apache.arrow.memory.ArrowBuf; | ||
| import org.apache.arrow.memory.BufferAllocator; | ||
| import org.apache.arrow.memory.util.MemoryUtil; | ||
| import org.apache.arrow.util.Preconditions; | ||
| import org.apache.arrow.vector.compression.CompressionCodec; | ||
| import org.apache.arrow.vector.compression.CompressionUtil; | ||
| import org.apache.commons.compress.compressors.lz4.FramedLZ4CompressorInputStream; | ||
| import org.apache.commons.compress.compressors.lz4.FramedLZ4CompressorOutputStream; | ||
| import org.apache.commons.compress.utils.IOUtils; | ||
|
|
||
| import io.netty.util.internal.PlatformDependent; | ||
|
||
|
|
||
| /** | ||
| * Compression codec for the LZ4 algorithm. | ||
| */ | ||
| public class Lz4CompressionCodec implements CompressionCodec { | ||
|
||
|
|
||
| @Override | ||
| public ArrowBuf compress(BufferAllocator allocator, ArrowBuf uncompressedBuffer) { | ||
| Preconditions.checkArgument(uncompressedBuffer.writerIndex() <= Integer.MAX_VALUE, | ||
| "The uncompressed buffer size exceeds the integer limit"); | ||
|
|
||
| if (uncompressedBuffer.writerIndex() == 0L) { | ||
| // shortcut for empty buffer | ||
| ArrowBuf compressedBuffer = allocator.buffer(CompressionUtil.SIZE_OF_UNCOMPRESSED_LENGTH); | ||
| compressedBuffer.setLong(0, 0); | ||
| compressedBuffer.writerIndex(CompressionUtil.SIZE_OF_UNCOMPRESSED_LENGTH); | ||
| uncompressedBuffer.close(); | ||
| return compressedBuffer; | ||
| } | ||
|
|
||
| try { | ||
| ArrowBuf compressedBuffer = doCompress(allocator, uncompressedBuffer); | ||
| long compressedLength = compressedBuffer.writerIndex() - CompressionUtil.SIZE_OF_UNCOMPRESSED_LENGTH; | ||
| if (compressedLength > uncompressedBuffer.writerIndex()) { | ||
| // compressed buffer is larger, send the raw buffer | ||
| compressedBuffer.close(); | ||
| compressedBuffer = CompressionUtil.packageRawBuffer(allocator, uncompressedBuffer); | ||
| } | ||
|
|
||
| uncompressedBuffer.close(); | ||
| return compressedBuffer; | ||
| } catch (IOException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
|
||
| private ArrowBuf doCompress(BufferAllocator allocator, ArrowBuf uncompressedBuffer) throws IOException { | ||
| byte[] inBytes = new byte[(int) uncompressedBuffer.writerIndex()]; | ||
|
||
| PlatformDependent.copyMemory(uncompressedBuffer.memoryAddress(), inBytes, 0, uncompressedBuffer.writerIndex()); | ||
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); | ||
| try (InputStream in = new ByteArrayInputStream(inBytes); | ||
| OutputStream out = new FramedLZ4CompressorOutputStream(baos)) { | ||
| IOUtils.copy(in, out); | ||
| } | ||
|
|
||
| byte[] outBytes = baos.toByteArray(); | ||
|
|
||
| ArrowBuf compressedBuffer = allocator.buffer(CompressionUtil.SIZE_OF_UNCOMPRESSED_LENGTH + outBytes.length); | ||
|
|
||
| long uncompressedLength = uncompressedBuffer.writerIndex(); | ||
| if (!MemoryUtil.LITTLE_ENDIAN) { | ||
| uncompressedLength = Long.reverseBytes(uncompressedLength); | ||
| } | ||
| // first 8 bytes reserved for uncompressed length, according to the specification | ||
| compressedBuffer.setLong(0, uncompressedLength); | ||
|
|
||
| PlatformDependent.copyMemory( | ||
| outBytes, 0, compressedBuffer.memoryAddress() + CompressionUtil.SIZE_OF_UNCOMPRESSED_LENGTH, outBytes.length); | ||
| compressedBuffer.writerIndex(CompressionUtil.SIZE_OF_UNCOMPRESSED_LENGTH + outBytes.length); | ||
| return compressedBuffer; | ||
| } | ||
|
|
||
| @Override | ||
| public ArrowBuf decompress(BufferAllocator allocator, ArrowBuf compressedBuffer) { | ||
| Preconditions.checkArgument(compressedBuffer.writerIndex() <= Integer.MAX_VALUE, | ||
| "The compressed buffer size exceeds the integer limit"); | ||
|
|
||
| Preconditions.checkArgument(compressedBuffer.writerIndex() >= CompressionUtil.SIZE_OF_UNCOMPRESSED_LENGTH, | ||
|
||
| "Not enough data to decompress."); | ||
|
|
||
| long decompressedLength = compressedBuffer.getLong(0); | ||
|
||
| if (!MemoryUtil.LITTLE_ENDIAN) { | ||
| decompressedLength = Long.reverseBytes(decompressedLength); | ||
| } | ||
|
|
||
| if (decompressedLength == 0L) { | ||
| // shortcut for empty buffer | ||
| compressedBuffer.close(); | ||
| return allocator.getEmpty(); | ||
| } | ||
|
|
||
| if (decompressedLength == CompressionUtil.NO_COMPRESSION_LENGTH) { | ||
| // no compression | ||
| return CompressionUtil.extractUncompressedBuffer(compressedBuffer); | ||
| } | ||
|
|
||
| try { | ||
| ArrowBuf decompressedBuffer = doDecompress(allocator, compressedBuffer); | ||
| compressedBuffer.close(); | ||
|
||
| return decompressedBuffer; | ||
| } catch (IOException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
|
||
| private ArrowBuf doDecompress(BufferAllocator allocator, ArrowBuf compressedBuffer) throws IOException { | ||
| long decompressedLength = compressedBuffer.getLong(0); | ||
| if (!MemoryUtil.LITTLE_ENDIAN) { | ||
| decompressedLength = Long.reverseBytes(decompressedLength); | ||
| } | ||
|
|
||
| byte[] inBytes = new byte[(int) (compressedBuffer.writerIndex() - CompressionUtil.SIZE_OF_UNCOMPRESSED_LENGTH)]; | ||
| PlatformDependent.copyMemory( | ||
| compressedBuffer.memoryAddress() + CompressionUtil.SIZE_OF_UNCOMPRESSED_LENGTH, inBytes, 0, inBytes.length); | ||
| ByteArrayOutputStream out = new ByteArrayOutputStream((int) decompressedLength); | ||
| try (InputStream in = new FramedLZ4CompressorInputStream(new ByteArrayInputStream(inBytes))) { | ||
| IOUtils.copy(in, out); | ||
| } | ||
|
|
||
| byte[] outBytes = out.toByteArray(); | ||
| ArrowBuf decompressedBuffer = allocator.buffer(outBytes.length); | ||
| PlatformDependent.copyMemory(outBytes, 0, decompressedBuffer.memoryAddress(), outBytes.length); | ||
| decompressedBuffer.writerIndex(decompressedLength); | ||
| return decompressedBuffer; | ||
| } | ||
|
|
||
| @Override | ||
| public CompressionUtil.CodecType getCodecType() { | ||
| return CompressionUtil.CodecType.LZ4_FRAME; | ||
| } | ||
| } | ||
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why is netty required?
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The
vectormodule requires this library. If we do not add it in the dependency list, we get an errow when building with maven:There was a problem hiding this comment.
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hmm, wonder why netty is required here though, I'll take a closer look.