public override TypedResponse Process(TypedRequest typedRequest)
        {
            var request = (GetFileExtractsRequest)typedRequest;
            var result  = _searchEngine.GetFileExtracts(new FullPathName(request.FileName), request.Positions);

            return(new GetFileExtractsResponse {
                FileName = request.FileName,
                FileExtracts = result.ToList()
            });
        }