LZ4 compression. The entry point of the API is the {@link net.jpountz.lz4.LZ4Factory} class, which gives access to {@link net.jpountz.lz4.LZ4Compressor compressors} and {@link net.jpountz.lz4.LZ4SafeDecompressor decompressors}.

Sample usage:

        LZ4Factory factory = LZ4Factory.fastestInstance();

        byte[] data = "12345345234572".getBytes("UTF-8");
        final int decompressedLength = data.length;

        // compress data
        LZ4Compressor compressor = factory.fastCompressor();
        int maxCompressedLength = compressor.maxCompressedLength(decompressedLength);
        byte[] compressed = new byte[maxCompressedLength];
        int compressedLength = compressor.compress(data, 0, decompressedLength, compressed, 0, maxCompressedLength);

        // decompress data
        // - method 1: when the decompressed length is known
        LZ4FastDecompressor decompressor = factory.fastDecompressor();
        byte[] restored = new byte[decompressedLength];
        int compressedLength2 = decompressor.decompress(compressed, 0, restored, 0, decompressedLength);
        // compressedLength == compressedLength2

        // - method 2: when the compressed length is known (a little slower)
        // the destination buffer needs to be over-sized
        LZ4SafeDecompressor decompressor2 = factory.safeDecompressor();
        int decompressedLength2 = decompressor2.decompress(compressed, 0, compressedLength, restored, 0);
        // decompressedLength == decompressedLength2