public HttpResponseMessage Get()
        {
            try
            {
                GetFileTreeQuery query = new GetFileTreeQuery()
                {
                    MandatorUIDs  = RequestMandatorUIDs,
                    DirectoryPath = ConfigurationManager.AppSettings["FileSystemDirectory"]
                };

                GetFileTreeQueryHandler handler = new GetFileTreeQueryHandler(query, UnityContainer);

                return(Request.CreateResponse(HttpStatusCode.OK, handler.Handle()));
            }
            catch (UnauthorizedAccessException e)
            {
                return(Request.CreateErrorResponse(HttpStatusCode.Unauthorized, e));
            }
            catch (DataException e)
            {
                return(Request.CreateErrorResponse(HttpStatusCode.InternalServerError, e));
            }
            catch (FileNotFoundException e)
            {
                return(Request.CreateErrorResponse(HttpStatusCode.NotFound, e));
            }
            catch (Exception e)
            {
                return(Request.CreateErrorResponse(HttpStatusCode.InternalServerError, e));
            }
        }
 public GetFileTreeQueryHandler(GetFileTreeQuery query, IUnityContainer unityContainer) : base(unityContainer)
 {
     _query = query;
     _uow   = new OrgManUnitOfWork();
 }