Examples of net.jpountz.lz4.LZ4FastDecompressor.decompress()

Class net.jpountz.lz4.LZ4FastDecompressor

Examples of net.jpountz.lz4.LZ4FastDecompressor.decompress()

net.jpountz.lz4.LZ4FastDecompressor.decompress()
Decompress src[srcOff:] into dest[destOff:destOff+destLen] and return the number of bytes read from src. destLen must be exactly the size of the decompressed data. @param destLen the exact size of the original input @return the number of bytes read to restore the original input

      LZ4Decompressor decompressor = lz4Factory.decompressor();


      int size = ByteBuffer.wrap(in).getInt();


      out = new byte[size];
      decompressor.decompress(in, Ints.BYTES, out, 0, out.length);
    }
    return out == null ? null : out;
  }
}

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    // 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();

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      int decompressedLength = compbb.getInt();


      
      LZ4FastDecompressor decompressor = factory.fastDecompressor();
      byte[] decompressedBytes = new byte[decompressedLength];
      int compressedLength2 = decompressor.decompress(bytes, 4, decompressedBytes, 0, decompressedLength);
      
      assert(compressedLength == compressedLength2);
      
      return codecUncompressed.createObjectFromBytes(decompressedBytes);
   }

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      int compressedBytesOffset = buffer.arrayOffset() + buffer.position();
      byte[] compressedBytes    = buffer.array();
      
      LZ4FastDecompressor decompressor = factory.fastDecompressor();
      byte[] decompressedBytes = new byte[decompressedLength];
      int compressedLength2 = decompressor.decompress(compressedBytes, compressedBytesOffset, decompressedBytes, 0, decompressedLength);
      
      assert(compressedLength == compressedLength2);
      
      return codecUncompressed.createObjectFromBytes(decompressedBytes);
   }

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    // 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
  }


}

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