org.apache.parquet.hadoop.codec.Lz4RawCompressor Maven / Gradle / Ivy
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* 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
*
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* software distributed under the License is distributed on an
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*/
package org.apache.parquet.hadoop.codec;
import io.airlift.compress.lz4.Lz4Compressor;
import java.io.IOException;
import java.nio.ByteBuffer;
public class Lz4RawCompressor extends NonBlockedCompressor {
private Lz4Compressor compressor = new Lz4Compressor();
@Override
protected int maxCompressedLength(int byteSize) {
return io.airlift.compress.lz4.Lz4RawCompressor.maxCompressedLength(byteSize);
}
@Override
protected int compress(ByteBuffer uncompressed, ByteBuffer compressed) throws IOException {
compressor.compress(uncompressed, compressed);
int compressedSize = compressed.position();
compressed.limit(compressedSize);
compressed.rewind();
return compressedSize;
}
}