Beispiel #1
0
        public void ProcessAsync()
        {
            var task = new Task(() => {
                var variables = new Variables.Root();

                int processedEntries = 0, totalEntries = SearchData.EntryCount;
                int processedWeight  = 0, totalWeight = HandlerList.GetTotalWeight(SearchData);

                int updateCounter = 0, updateInterval = totalEntries / 400;

                if (Progress != null)
                {
                    Progress(0, processedEntries, totalEntries);
                }

                Action checkProgress;

                if (Progress != null)
                {
                    checkProgress = () => {
                        if (++updateCounter > updateInterval && Progress != null)
                        {
                            updateCounter = 0;
                            Progress((int)Math.Floor(100F * processedWeight / totalWeight), processedEntries, totalEntries);
                        }
                    };
                }
                else
                {
                    checkProgress = () => {};
                }

                // Folders
                List <IFolderHandler> folderHandlers = HandlerList.GetFolderHandlers().ToList();
                int folderHandlerWeight = folderHandlers.Sum(handler => handler.Weight);

                foreach (string folder in SearchData.Folders)
                {
                    if (cancelToken.IsCancellationRequested)
                    {
                        if (CancelFinish != null)
                        {
                            CancelFinish();
                        }
                        return;
                    }

                    foreach (IFolderHandler folderHandler in folderHandlers)
                    {
                        folderHandler.Process(folder, variables);
                    }

                    ++processedEntries;
                    ++updateCounter;
                    processedWeight += folderHandlerWeight;
                    checkProgress();
                }

                // Files
                HashSet <IFileHandler> initializedHandlers = new HashSet <IFileHandler>();

                foreach (File file in SearchData.Files)
                {
                    if (cancelToken.IsCancellationRequested)
                    {
                        if (CancelFinish != null)
                        {
                            CancelFinish();
                        }
                        return;
                    }

                    IFileHandler handler = HandlerList.GetFileHandler(file);

                    if (initializedHandlers.Add(handler))
                    {
                        handler.SetupProject(variables);
                    }

                    handler.Process(file, variables);

                    ++processedEntries;
                    ++updateCounter;
                    processedWeight += handler.Weight;
                    checkProgress();
                }

                foreach (IFileHandler handler in initializedHandlers)
                {
                    handler.FinalizeProject(variables);
                }

                // Finalize
                if (Progress != null)
                {
                    Progress(100, processedEntries, totalEntries);
                }
                if (Finish != null)
                {
                    Finish(variables);
                }
            }, cancelToken.Token);

            task.ContinueWith(originalTask => {
                if (Failure != null)
                {
                    Failure(originalTask.Exception);
                }
            }, TaskContinuationOptions.OnlyOnFaulted);

            task.Start();
        }