private void ImportCoreOuter(DataImporterContext ctx)
        {
            if (ctx.Request.Profile == null || !ctx.Request.Profile.Enabled)
                return;

            var logPath = ctx.Request.Profile.GetImportLogPath();

            FileSystemHelper.Delete(logPath);

            using (var logger = new TraceLogger(logPath))
            {
                try
                {
                    ctx.Log = logger;

                    ctx.ExecuteContext.DataExchangeSettings = _dataExchangeSettings.Value;
                    ctx.ExecuteContext.Services = _services;
                    ctx.ExecuteContext.Log = logger;
                    ctx.ExecuteContext.Languages = _languageService.GetAllLanguages(true);
                    ctx.ExecuteContext.UpdateOnly = ctx.Request.Profile.UpdateOnly;
                    ctx.ExecuteContext.KeyFieldNames = ctx.Request.Profile.KeyFieldNames.SplitSafe(",");
                    ctx.ExecuteContext.ImportFolder = ctx.Request.Profile.GetImportFolder();
                    ctx.ExecuteContext.ExtraData = XmlHelper.Deserialize<ImportExtraData>(ctx.Request.Profile.ExtraData);

                    {
                        var mapConverter = new ColumnMapConverter();
                        ctx.ExecuteContext.ColumnMap = mapConverter.ConvertFrom<ColumnMap>(ctx.Request.Profile.ColumnMapping) ?? new ColumnMap();
                    }

                    var files = ctx.Request.Profile.GetImportFiles();

                    if (files.Count == 0)
                        throw new SmartException("No files to import.");

                    if (!HasPermission(ctx))
                        throw new SmartException("You do not have permission to perform the selected import.");

                    ctx.Importer = _importerFactory(ctx.Request.Profile.EntityType);

                    files.ForEach(x => ImportCoreInner(ctx, x));
                }
                catch (Exception exception)
                {
                    ctx.ExecuteContext.Result.AddError(exception);
                }
                finally
                {
                    try
                    {
                        // database context sharing problem: if there are entities in modified state left by the provider due to SaveChanges failure,
                        // then all subsequent SaveChanges would fail too (e.g. IImportProfileService.UpdateImportProfile, IScheduledTaskService.UpdateTask...).
                        // so whatever it is, detach\dispose all what the tracker still has tracked.

                        _services.DbContext.DetachAll(false);
                    }
                    catch (Exception exception)
                    {
                        ctx.ExecuteContext.Result.AddError(exception);
                    }

                    try
                    {
                        SendCompletionEmail(ctx);
                    }
                    catch (Exception exception)
                    {
                        ctx.ExecuteContext.Result.AddError(exception);
                    }

                    try
                    {
                        ctx.ExecuteContext.Result.EndDateUtc = DateTime.UtcNow;

                        LogResult(ctx);
                    }
                    catch (Exception exception)
                    {
                        logger.ErrorsAll(exception);
                    }

                    try
                    {
                        ctx.Request.Profile.ResultInfo = XmlHelper.Serialize(ctx.ExecuteContext.Result.Clone());

                        _importProfileService.UpdateImportProfile(ctx.Request.Profile);
                    }
                    catch (Exception exception)
                    {
                        logger.ErrorsAll(exception);
                    }

                    try
                    {
                        ctx.Request.CustomData.Clear();
                        ctx.Log = null;
                    }
                    catch (Exception exception)
                    {
                        logger.ErrorsAll(exception);
                    }
                }
            }
        }
        private void ExportCoreOuter(DataExporterContext ctx)
        {
            if (ctx.Request.Profile == null || !ctx.Request.Profile.Enabled)
                return;

            var logPath = ctx.Request.Profile.GetExportLogPath();
            var zipPath = ctx.Request.Profile.GetExportZipPath();

            FileSystemHelper.Delete(logPath);
            FileSystemHelper.Delete(zipPath);
            FileSystemHelper.ClearDirectory(ctx.FolderContent, false);

            using (var logger = new TraceLogger(logPath))
            {
                try
                {
                    ctx.Log = logger;
                    ctx.ExecuteContext.Log = logger;
                    ctx.ProgressInfo = T("Admin.DataExchange.Export.ProgressInfo");

                    if (!ctx.Request.Provider.IsValid())
                        throw new SmartException("Export aborted because the export provider is not valid.");

                    if (!HasPermission(ctx))
                        throw new SmartException("You do not have permission to perform the selected export.");

                    foreach (var item in ctx.Request.CustomData)
                    {
                        ctx.ExecuteContext.CustomProperties.Add(item.Key, item.Value);
                    }

                    if (ctx.Request.Profile.ProviderConfigData.HasValue())
                    {
                        var configInfo = ctx.Request.Provider.Value.ConfigurationInfo;
                        if (configInfo != null)
                        {
                            ctx.ExecuteContext.ConfigurationData = XmlHelper.Deserialize(ctx.Request.Profile.ProviderConfigData, configInfo.ModelType);
                        }
                    }

                    // lazyLoading: false, proxyCreation: false impossible. how to identify all properties of all data levels of all entities
                    // that require manual resolving for now and for future? fragile, susceptible to faults (e.g. price calculation)...
                    using (var scope = new DbContextScope(_dbContext, autoDetectChanges: false, proxyCreation: true, validateOnSave: false, forceNoTracking: true))
                    {
                        ctx.DeliveryTimes = _deliveryTimeService.Value.GetAllDeliveryTimes().ToDictionary(x => x.Id);
                        ctx.QuantityUnits = _quantityUnitService.Value.GetAllQuantityUnits().ToDictionary(x => x.Id);
                        ctx.ProductTemplates = _productTemplateService.Value.GetAllProductTemplates().ToDictionary(x => x.Id, x => x.ViewPath);
                        ctx.CategoryTemplates = _categoryTemplateService.Value.GetAllCategoryTemplates().ToDictionary(x => x.Id, x => x.ViewPath);

                        if (ctx.Request.Provider.Value.EntityType == ExportEntityType.Product)
                        {
                            var allCategories = _categoryService.Value.GetAllCategories(showHidden: true, applyNavigationFilters: false);
                            ctx.Categories = allCategories.ToDictionary(x => x.Id);
                        }

                        if (ctx.Request.Provider.Value.EntityType == ExportEntityType.Order)
                        {
                            ctx.Countries = _countryService.Value.GetAllCountries(true).ToDictionary(x => x.Id, x => x);
                        }

                        if (ctx.Request.Provider.Value.EntityType == ExportEntityType.Customer)
                        {
                            var subscriptionEmails = _subscriptionRepository.Value.TableUntracked
                                .Where(x => x.Active)
                                .Select(x => x.Email)
                                .Distinct()
                                .ToList();

                            ctx.NewsletterSubscriptions = new HashSet<string>(subscriptionEmails, StringComparer.OrdinalIgnoreCase);
                        }

                        var stores = Init(ctx);

                        ctx.ExecuteContext.Language = ToDynamic(ctx, ctx.ContextLanguage);
                        ctx.ExecuteContext.Customer = ToDynamic(ctx, ctx.ContextCustomer);
                        ctx.ExecuteContext.Currency = ToDynamic(ctx, ctx.ContextCurrency);

                        stores.ForEach(x => ExportCoreInner(ctx, x));
                    }

                    if (!ctx.IsPreview && ctx.ExecuteContext.Abort != DataExchangeAbortion.Hard)
                    {
                        if (ctx.IsFileBasedExport)
                        {
                            if (ctx.Request.Profile.CreateZipArchive)
                            {
                                ZipFile.CreateFromDirectory(ctx.FolderContent, zipPath, CompressionLevel.Fastest, false);
                            }

                            if (ctx.Request.Profile.Deployments.Any(x => x.Enabled))
                            {
                                SetProgress(ctx, T("Common.Publishing"));

                                var allDeploymentsSucceeded = Deploy(ctx, zipPath);

                                if (allDeploymentsSucceeded && ctx.Request.Profile.Cleanup)
                                {
                                    logger.Information("Cleaning up export folder");

                                    FileSystemHelper.ClearDirectory(ctx.FolderContent, false);
                                }
                            }
                        }

                        if (ctx.Request.Profile.EmailAccountId != 0 && ctx.Request.Profile.CompletedEmailAddresses.HasValue())
                        {
                            SendCompletionEmail(ctx, zipPath);
                        }
                        else if (ctx.Request.Profile.IsSystemProfile && !ctx.Supports(ExportFeatures.CanOmitCompletionMail))
                        {
                            SendCompletionEmail(ctx, zipPath);
                        }
                    }
                }
                catch (Exception exception)
                {
                    logger.ErrorsAll(exception);
                    ctx.Result.LastError = exception.ToString();
                }
                finally
                {
                    try
                    {
                        if (!ctx.IsPreview && ctx.Request.Profile.Id != 0)
                        {
                            ctx.Request.Profile.ResultInfo = XmlHelper.Serialize(ctx.Result);

                            _exportProfileService.Value.UpdateExportProfile(ctx.Request.Profile);
                        }
                    }
                    catch (Exception exception)
                    {
                        logger.ErrorsAll(exception);
                    }

                    DetachAllEntitiesAndClear(ctx);

                    try
                    {
                        ctx.NewsletterSubscriptions.Clear();
                        ctx.ProductTemplates.Clear();
                        ctx.CategoryTemplates.Clear();
                        ctx.Countries.Clear();
                        ctx.Languages.Clear();
                        ctx.QuantityUnits.Clear();
                        ctx.DeliveryTimes.Clear();
                        ctx.CategoryPathes.Clear();
                        ctx.Categories.Clear();
                        ctx.Stores.Clear();

                        ctx.Request.CustomData.Clear();

                        ctx.ExecuteContext.CustomProperties.Clear();
                        ctx.ExecuteContext.Log = null;
                        ctx.Log = null;
                    }
                    catch (Exception exception)
                    {
                        logger.ErrorsAll(exception);
                    }
                }
            }

            if (ctx.IsPreview || ctx.ExecuteContext.Abort == DataExchangeAbortion.Hard)
                return;

            // post process order entities
            if (ctx.EntityIdsLoaded.Any() && ctx.Request.Provider.Value.EntityType == ExportEntityType.Order && ctx.Projection.OrderStatusChange != ExportOrderStatusChange.None)
            {
                using (var logger = new TraceLogger(logPath))
                {
                    try
                    {
                        int? orderStatusId = null;

                        if (ctx.Projection.OrderStatusChange == ExportOrderStatusChange.Processing)
                            orderStatusId = (int)OrderStatus.Processing;
                        else if (ctx.Projection.OrderStatusChange == ExportOrderStatusChange.Complete)
                            orderStatusId = (int)OrderStatus.Complete;

                        using (var scope = new DbContextScope(_dbContext, false, null, false, false, false, false))
                        {
                            foreach (var chunk in ctx.EntityIdsLoaded.Chunk())
                            {
                                var entities = _orderRepository.Value.Table.Where(x => chunk.Contains(x.Id)).ToList();

                                entities.ForEach(x => x.OrderStatusId = (orderStatusId ?? x.OrderStatusId));

                                _dbContext.SaveChanges();
                            }
                        }

                        logger.Information("Updated order status for {0} order(s).".FormatInvariant(ctx.EntityIdsLoaded.Count()));
                    }
                    catch (Exception exception)
                    {
                        logger.ErrorsAll(exception);
                        ctx.Result.LastError = exception.ToString();
                    }
                }
            }
        }