code: void process(ByteChannel sock, AutoBuffer ab) throws IOException {
          int requestType = ab.get1();
          switch (requestType) {
              case CREATE_FRAME:
                  ExternalFrameWriterBackend.handleWriteToChunk(sock, ab);
                  break;
              case DOWNLOAD_FRAME:
                  ExternalFrameReaderBackend.handleReadingFromChunk(sock, ab);
                  break;
          }
      }
docs: Method which receives the {@link ByteChannel} and {@link AutoBuffer} and dispatches the request for further processing