func RegisterCompressor(method uint16, comp Compressor) {
	if _, dup := compressors.LoadOrStore(method, comp); dup {
		panic("compressor already registered")
	}
}

func compressor(method uint16) Compressor {
	ci, ok := compressors.Load(method)
	if !ok {
		return nil
	}
	return ci.(Compressor)
}

func decompressor(method uint16) Decompressor {
	di, ok := decompressors.Load(method)
	if !ok {
		return nil

    /**
     * Decompresses data that was compressed with the specified algorithm.
     *
     * @param compressedData the compressed data
     * @param algorithm the compression algorithm that was used
     * @return the decompressed data
     * @throws CIFSException if decompression fails
     */
    byte[] decompress(byte[] compressedData, int algorithm) throws CIFSException;

    /**

        assertArrayEquals(testData, compressed);

        byte[] decompressed = compressionService.decompress(compressed, CompressionService.COMPRESSION_NONE);
        assertArrayEquals(testData, decompressed);
    }

    @Test
    @DisplayName("Test LZ77 compression and decompression")
    public void testLZ77Compression() throws CIFSException {

      val response = chain.proceed(request)

      decompress(response)
    } else {
      chain.proceed(chain.request())
    }

  /**
   * Returns a decompressed copy of the Response, typically via a streaming Source.
   * If no known decompression or the response is not compressed, returns the response unmodified.
   */
  internal fun decompress(response: Response): Response {
    if (!response.promisesBody()) {

        header("Content-Encoding", "zstd")
      }

    val decompressed = zstdInterceptor.decompress(response)
    assertThat(decompressed.header("Content-Encoding")).isNull()

    assertFailsWith<IOException> {
      decompressed.body.string()
    }.also { ioe ->
      assertThat(ioe).hasMessage("zstd decompress failed: Unknown frame descriptor")
    }
  }

  @Test

        final ArchiveOutputStreamFactory compressor;
        switch (getCompression()) {
            case BZIP2:
                compressor = Bzip2Archiver.getCompressor();
                break;
            case GZIP:
                compressor = GzipArchiver.getCompressor();
                break;
            default:
                compressor = new SimpleCompressor();
                break;
        }

* Décompresser des corps de requête compressés en gzip.
* Journaliser automatiquement tous les corps de requête.

## Gérer les encodages personnalisés du corps de la requête { #handling-custom-request-body-encodings }

Voyons comment utiliser une sous-classe personnalisée de `Request` pour décompresser des requêtes gzip.

///

First, we create a `GzipRequest` class, which will overwrite the `Request.body()` method to decompress the body in the presence of an appropriate header.

If there's no `gzip` in the header, it will not try to decompress the body.

That way, the same route class can handle gzip compressed or uncompressed requests.

    val response =
      response("https://httpbin.org/brotli", s.decodeHex()) {
        header("Content-Encoding", "br")
      }

    val uncompressed = brotliInterceptor.decompress(response)

    val responseString = uncompressed.body.string()
    assertThat(responseString).contains("\"brotli\": true,")
    assertThat(responseString).contains("\"Accept-Encoding\": \"br\"")
  }

  @Test

}

func ExampleWriter_RegisterCompressor() {
	// Override the default Deflate compressor with a higher compression level.

	// Create a buffer to write our archive to.
	buf := new(bytes.Buffer)

	// Create a new zip archive.
	w := zip.NewWriter(buf)

	// Register a custom Deflate compressor.
	w.RegisterCompressor(zip.Deflate, func(out io.Writer) (io.WriteCloser, error) {