root / trunk / Pithos.Core / PithosMonitor.cs @ 0c02aa65
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using System; |
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using System.Collections.Concurrent; |
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using System.Collections.Generic; |
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using System.ComponentModel.Composition; |
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using System.Diagnostics; |
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using System.Diagnostics.Contracts; |
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using System.IO; |
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using System.Linq; |
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using System.Net.NetworkInformation; |
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using System.Security.Cryptography; |
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using System.ServiceModel.Description; |
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using System.Text; |
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using System.Threading; |
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using System.Threading.Tasks; |
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using Castle.ActiveRecord.Queries; |
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using Microsoft.WindowsAPICodePack.Net; |
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using Pithos.Interfaces; |
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using System.ServiceModel; |
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|
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namespace Pithos.Core |
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{ |
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[Export(typeof(PithosMonitor))] |
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public class PithosMonitor:IDisposable |
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{ |
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private const string PithosContainer = "pithos"; |
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private const string TrashContainer = "trash"; |
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|
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[Import] |
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public IPithosSettings Settings{get;set;} |
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|
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[Import] |
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public IStatusKeeper StatusKeeper { get; set; } |
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|
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[Import] |
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public IPithosWorkflow Workflow { get; set; } |
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|
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[Import] |
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public ICloudClient CloudClient { get; set; } |
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|
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[Import] |
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public ICloudClient CloudListeningClient { get; set; } |
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|
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public IStatusNotification StatusNotification { get; set; } |
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|
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public string UserName { get; set; } |
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public string ApiKey { get; set; } |
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|
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private ServiceHost _statusService { get; set; } |
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|
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private FileSystemWatcher _watcher; |
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|
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public bool Pause |
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{ |
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get { return _watcher == null || !_watcher.EnableRaisingEvents; } |
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set |
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{ |
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if (_watcher!=null) |
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_watcher.EnableRaisingEvents = !value; |
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if (value) |
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{ |
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StatusKeeper.SetPithosStatus(PithosStatus.SyncPaused); |
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StatusNotification.NotifyChange("Paused"); |
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} |
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else |
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{ |
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StatusKeeper.SetPithosStatus(PithosStatus.InSynch); |
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StatusNotification.NotifyChange("In Synch"); |
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} |
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} |
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} |
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|
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public string RootPath { get; set; } |
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|
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|
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CancellationTokenSource _cancellationSource; |
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|
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readonly BlockingCollection<WorkflowState> _fileEvents = new BlockingCollection<WorkflowState>(); |
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readonly BlockingCollection<WorkflowState> _uploadEvents = new BlockingCollection<WorkflowState>(); |
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|
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|
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|
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public void Start() |
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{ |
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StatusNotification.NotifyChange("Starting"); |
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if (_cancellationSource != null) |
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{ |
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if (!_cancellationSource.IsCancellationRequested) |
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return; |
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} |
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_cancellationSource = new CancellationTokenSource(); |
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|
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var proxyUri = ProxyFromSettings(); |
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CloudClient.Proxy = proxyUri; |
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CloudClient.UsePithos = this.UsePithos; |
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EnsurePithosContainers(); |
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StatusKeeper.StartProcessing(_cancellationSource.Token); |
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IndexLocalFiles(RootPath); |
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StartMonitoringFiles(RootPath); |
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|
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StartStatusService(); |
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|
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StartNetwork(); |
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} |
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|
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private void EnsurePithosContainers() |
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{ |
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CloudClient.UsePithos = this.UsePithos; |
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CloudClient.AuthenticationUrl = this.AuthenticationUrl; |
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CloudClient.Authenticate(UserName, ApiKey); |
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|
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var pithosContainers = new[] {PithosContainer, TrashContainer}; |
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foreach (var container in pithosContainers) |
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{ |
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if (!CloudClient.ContainerExists(container)) |
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CloudClient.CreateContainer(container); |
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} |
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} |
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|
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public string AuthenticationUrl { get; set; } |
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|
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private Uri ProxyFromSettings() |
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{ |
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if (Settings.UseManualProxy) |
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{ |
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var proxyUri = new UriBuilder |
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{ |
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Host = Settings.ProxyServer, |
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Port = Settings.ProxyPort |
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}; |
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if (Settings.ProxyAuthentication) |
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{ |
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proxyUri.UserName = Settings.ProxyUsername; |
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proxyUri.Password = Settings.ProxyPassword; |
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} |
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return proxyUri.Uri; |
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} |
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return null; |
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} |
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|
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private void IndexLocalFiles(string path) |
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{ |
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StatusNotification.NotifyChange("Indexing Local Files",TraceLevel.Info); |
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Trace.TraceInformation("[START] Index Local"); |
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try |
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{ |
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var files = |
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from filePath in Directory.EnumerateFiles(path, "*", SearchOption.AllDirectories).AsParallel() |
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select filePath; |
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StatusKeeper.StoreUnversionedFiles(files); |
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|
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RestartInterruptedFiles(); |
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} |
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catch (Exception exc) |
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{ |
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Trace.TraceError("[ERROR] Index Local - {0}", exc); |
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} |
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finally |
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{ |
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Trace.TraceInformation("[END] Inxed Local"); |
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} |
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} |
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|
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private void RestartInterruptedFiles() |
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{ |
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StatusNotification.NotifyChange("Restart processing interrupted files", TraceLevel.Verbose); |
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var interruptedStates = new[] { FileOverlayStatus.Unversioned, FileOverlayStatus.Modified }; |
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var filesQuery = from state in FileState.Queryable |
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where interruptedStates.Contains(state.OverlayStatus) |
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select new WorkflowState |
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{ |
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Path = state.FilePath.ToLower(), |
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FileName = Path.GetFileName(state.FilePath).ToLower(), |
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Status=state.OverlayStatus==FileOverlayStatus.Unversioned? |
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FileStatus.Created: |
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FileStatus.Modified, |
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TriggeringChange = state.OverlayStatus==FileOverlayStatus.Unversioned? |
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WatcherChangeTypes.Created: |
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WatcherChangeTypes.Changed |
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}; |
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_uploadEvents.AddFromEnumerable(filesQuery,false); |
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|
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} |
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|
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private void StartStatusService() |
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{ |
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// Create a ServiceHost for the CalculatorService type and provide the base address. |
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var baseAddress = new Uri("net.pipe://localhost/pithos"); |
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_statusService = new ServiceHost(typeof(StatusService), baseAddress); |
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|
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var binding = new NetNamedPipeBinding(NetNamedPipeSecurityMode.None); |
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|
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_statusService.AddServiceEndpoint(typeof(IStatusService), binding, "net.pipe://localhost/pithos/statuscache"); |
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_statusService.AddServiceEndpoint(typeof (ISettingsService), binding, "net.pipe://localhost/pithos/settings"); |
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|
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|
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//// Add a mex endpoint |
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var smb = new ServiceMetadataBehavior |
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{ |
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HttpGetEnabled = true, |
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HttpGetUrl = new Uri("http://localhost:30000/pithos/mex") |
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}; |
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_statusService.Description.Behaviors.Add(smb); |
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|
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|
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_statusService.Open(); |
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} |
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|
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private void StopStatusService() |
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{ |
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if (_statusService == null) |
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return; |
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|
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if (_statusService.State == CommunicationState.Faulted) |
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_statusService.Abort(); |
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else if (_statusService.State != CommunicationState.Closed) |
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_statusService.Close(); |
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_statusService = null; |
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|
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} |
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|
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|
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private void StartNetwork() |
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{ |
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|
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bool connected = NetworkListManager.IsConnectedToInternet; |
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//If we are not connected retry later |
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if (!connected) |
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{ |
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Task.Factory.StartNewDelayed(10000, StartNetwork); |
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return; |
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} |
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|
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try |
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{ |
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CloudClient.UsePithos = this.UsePithos; |
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CloudClient.AuthenticationUrl = this.AuthenticationUrl; |
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CloudClient.Authenticate(UserName, ApiKey); |
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|
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StartListening(RootPath); |
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StartSending(); |
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} |
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catch (Exception) |
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{ |
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//Faild to authenticate due to network or account error |
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//Retry after a while |
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Task.Factory.StartNewDelayed(10000, StartNetwork); |
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} |
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} |
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|
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public bool UsePithos { get; set; } |
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|
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internal enum CloudActionType |
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{ |
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Upload=0, |
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Download, |
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UploadUnconditional, |
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DownloadUnconditional, |
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DeleteLocal, |
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DeleteCloud |
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} |
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|
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internal class ListenerAction |
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{ |
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public CloudActionType Action { get; set; } |
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public FileInfo LocalFile { get; set; } |
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public ObjectInfo CloudFile { get; set; } |
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|
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public Lazy<string> LocalHash { get; set; } |
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|
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public ListenerAction(CloudActionType action, FileInfo localFile, ObjectInfo cloudFile) |
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{ |
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Action = action; |
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LocalFile = localFile; |
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CloudFile = cloudFile; |
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LocalHash=new Lazy<string>(()=>Signature.CalculateHash(LocalFile.FullName),LazyThreadSafetyMode.ExecutionAndPublication); |
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} |
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|
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} |
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|
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internal class LocalFileComparer:EqualityComparer<ListenerAction> |
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{ |
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public override bool Equals(ListenerAction x, ListenerAction y) |
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{ |
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if (x.Action != y.Action) |
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return false; |
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if (x.LocalFile != null && y.LocalFile != null && !x.LocalFile.FullName.Equals(y.LocalFile.FullName)) |
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return false; |
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if (x.CloudFile != null && y.CloudFile != null && !x.CloudFile.Hash.Equals(y.CloudFile.Hash)) |
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return false; |
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if (x.CloudFile == null ^ y.CloudFile == null || |
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x.LocalFile == null ^ y.LocalFile == null) |
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return false; |
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return true; |
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} |
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|
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public override int GetHashCode(ListenerAction obj) |
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{ |
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var hash1 = (obj.LocalFile == null) ? int.MaxValue : obj.LocalFile.FullName.GetHashCode(); |
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var hash2 = (obj.CloudFile == null) ? int.MaxValue : obj.CloudFile.Hash.GetHashCode(); |
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var hash3 = obj.Action.GetHashCode(); |
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return hash1 ^ hash2 & hash3; |
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} |
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} |
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|
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private BlockingCollection<ListenerAction> _networkActions=new BlockingCollection<ListenerAction>(); |
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|
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private Timer timer; |
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|
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private void StartListening(string accountPath) |
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{ |
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|
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ProcessRemoteFiles(accountPath); |
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|
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Task.Factory.StartNew(ProcessListenerActions); |
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|
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} |
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|
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private Task ProcessRemoteFiles(string accountPath) |
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{ |
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Trace.TraceInformation("[LISTENER] Scheduled"); |
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return Task.Factory.StartNewDelayed(10000) |
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.ContinueWith(t=>CloudClient.ListObjects(PithosContainer)) |
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.ContinueWith(task => |
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{ |
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Trace.TraceInformation("[LISTENER] Start Processing"); |
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|
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var remoteObjects = task.Result; |
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/* |
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if (remoteObjects.Count == 0) |
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return; |
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*/ |
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|
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var pithosDir = new DirectoryInfo(accountPath); |
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|
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var remoteFiles = from info in remoteObjects |
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select info.Name.ToLower(); |
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|
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var onlyLocal = from localFile in pithosDir.EnumerateFiles() |
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where !remoteFiles.Contains(localFile.Name.ToLower()) |
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select new ListenerAction(CloudActionType.UploadUnconditional, localFile,ObjectInfo.Empty); |
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|
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|
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|
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var localNames = from info in pithosDir.EnumerateFiles() |
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select info.Name.ToLower(); |
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|
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var onlyRemote = from upFile in remoteObjects |
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where !localNames.Contains(upFile.Name.ToLower()) |
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select new ListenerAction(CloudActionType.DownloadUnconditional,new FileInfo(""), upFile); |
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|
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|
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var commonObjects = from upFile in remoteObjects |
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join localFile in pithosDir.EnumerateFiles() |
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on upFile.Name.ToLower() equals localFile.Name.ToLower() |
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select new ListenerAction(CloudActionType.Download, localFile, upFile); |
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|
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var uniques = |
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onlyLocal.Union(onlyRemote).Union(commonObjects) |
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.Except(_networkActions,new LocalFileComparer()); |
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|
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_networkActions.AddFromEnumerable(uniques, false); |
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|
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StatusNotification.NotifyChange(String.Format("Processing {0} files", _networkActions.Count)); |
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|
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Trace.TraceInformation("[LISTENER] End Processing"); |
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|
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} |
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).ContinueWith(t=> |
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{ |
370 |
if (t.IsFaulted) |
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{ |
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Trace.TraceError("[LISTENER] Exception: {0}",t.Exception); |
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} |
374 |
else |
375 |
{ |
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Trace.TraceInformation("[LISTENER] Finished"); |
377 |
} |
378 |
ProcessRemoteFiles(accountPath); |
379 |
}); |
380 |
} |
381 |
|
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private void ProcessListenerActions() |
383 |
{ |
384 |
foreach(var action in _networkActions.GetConsumingEnumerable()) |
385 |
{ |
386 |
Trace.TraceInformation("[ACTION] Start Processing {0}:{1}->{2}",action.Action,action.LocalFile,action.CloudFile.Name); |
387 |
var localFile = action.LocalFile; |
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var cloudFile = action.CloudFile; |
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var downloadPath = (cloudFile == null)? String.Empty |
390 |
: Path.Combine(RootPath,cloudFile.Name); |
391 |
try |
392 |
{ |
393 |
switch (action.Action) |
394 |
{ |
395 |
case CloudActionType.UploadUnconditional: |
396 |
UploadCloudFile(localFile.Name,localFile.Length,localFile.FullName,action.LocalHash.Value); |
397 |
break; |
398 |
case CloudActionType.DownloadUnconditional: |
399 |
DownloadCloudFile(PithosContainer,cloudFile.Name,downloadPath); |
400 |
break; |
401 |
case CloudActionType.Download: |
402 |
if (File.Exists(downloadPath)) |
403 |
{ |
404 |
if (cloudFile.Hash !=action.LocalHash.Value) |
405 |
{ |
406 |
var lastLocalTime =localFile.LastWriteTime; |
407 |
var lastUpTime =cloudFile.Last_Modified; |
408 |
if (lastUpTime <=lastLocalTime) |
409 |
{ |
410 |
//Files in conflict |
411 |
StatusKeeper.SetFileOverlayStatus(downloadPath,FileOverlayStatus.Conflict); |
412 |
} |
413 |
else |
414 |
DownloadCloudFile(PithosContainer,action.CloudFile.Name,downloadPath); |
415 |
} |
416 |
} |
417 |
else |
418 |
DownloadCloudFile(PithosContainer,action.CloudFile.Name,downloadPath); |
419 |
break; |
420 |
} |
421 |
Trace.TraceInformation("[ACTION] End Processing {0}:{1}->{2}", action.Action, action.LocalFile, action.CloudFile.Name); |
422 |
} |
423 |
catch (Exception exc) |
424 |
{ |
425 |
Trace.TraceError("[REQUEUE] {0} : {1} -> {2} due to exception\r\n{3}", |
426 |
action.Action, action.LocalFile,action.CloudFile,exc); |
427 |
|
428 |
_networkActions.Add(action); |
429 |
} |
430 |
} |
431 |
} |
432 |
|
433 |
|
434 |
|
435 |
private void StartMonitoringFiles(string path) |
436 |
{ |
437 |
_watcher = new FileSystemWatcher(path); |
438 |
_watcher.Changed += OnFileEvent; |
439 |
_watcher.Created += OnFileEvent; |
440 |
_watcher.Deleted += OnFileEvent; |
441 |
_watcher.Renamed += OnRenameEvent; |
442 |
_watcher.EnableRaisingEvents = true; |
443 |
|
444 |
Task.Factory.StartNew(ProcesFileEvents,_cancellationSource.Token); |
445 |
} |
446 |
|
447 |
private void ProcesFileEvents() |
448 |
{ |
449 |
foreach (var state in _fileEvents.GetConsumingEnumerable()) |
450 |
{ |
451 |
try |
452 |
{ |
453 |
var networkState=StatusKeeper.GetNetworkState(state.Path); |
454 |
//Skip if the file is already being downloaded or uploaded and |
455 |
//the change is create or modify |
456 |
if (networkState != NetworkState.None && |
457 |
( |
458 |
state.TriggeringChange==WatcherChangeTypes.Created || |
459 |
state.TriggeringChange==WatcherChangeTypes.Changed |
460 |
)) |
461 |
continue; |
462 |
UpdateFileStatus(state); |
463 |
UpdateOverlayStatus(state); |
464 |
UpdateFileChecksum(state); |
465 |
_uploadEvents.Add(state); |
466 |
} |
467 |
catch (OperationCanceledException exc) |
468 |
{ |
469 |
Trace.TraceError("[ERROR] File Event Processing:\r{0}", exc); |
470 |
throw; |
471 |
} |
472 |
catch (Exception exc) |
473 |
{ |
474 |
Trace.TraceError("[ERROR] File Event Processing:\r{0}",exc); |
475 |
} |
476 |
} |
477 |
} |
478 |
|
479 |
private void StartSending() |
480 |
{ |
481 |
Task.Factory.StartNew(() => |
482 |
{ |
483 |
foreach (var state in _uploadEvents.GetConsumingEnumerable()) |
484 |
{ |
485 |
try |
486 |
{ |
487 |
SynchToCloud(state); |
488 |
} |
489 |
catch (OperationCanceledException) |
490 |
{ |
491 |
throw; |
492 |
} |
493 |
catch(Exception ex) |
494 |
{ |
495 |
Trace.TraceError("[ERROR] Synch for {0}:\r{1}",state.FileName,ex); |
496 |
} |
497 |
} |
498 |
|
499 |
},_cancellationSource.Token); |
500 |
} |
501 |
|
502 |
|
503 |
private WorkflowState SynchToCloud(WorkflowState state) |
504 |
{ |
505 |
if (state.Skip) |
506 |
return state; |
507 |
string path = state.Path.ToLower(); |
508 |
string fileName = Path.GetFileName(path); |
509 |
|
510 |
//Bypass deleted files, unless the status is Deleted |
511 |
if (!(File.Exists(path) || state.Status == FileStatus.Deleted)) |
512 |
{ |
513 |
state.Skip = true; |
514 |
this.StatusKeeper.RemoveFileOverlayStatus(path); |
515 |
return state; |
516 |
} |
517 |
|
518 |
switch(state.Status) |
519 |
{ |
520 |
case FileStatus.Created: |
521 |
case FileStatus.Modified: |
522 |
var info = new FileInfo(path); |
523 |
long fileSize = info.Length; |
524 |
UploadCloudFile(fileName, fileSize, path,state.Hash); |
525 |
break; |
526 |
case FileStatus.Deleted: |
527 |
DeleteCloudFile(fileName); |
528 |
break; |
529 |
case FileStatus.Renamed: |
530 |
RenameCloudFile(state); |
531 |
break; |
532 |
} |
533 |
return state; |
534 |
} |
535 |
|
536 |
private void RenameCloudFile(WorkflowState state) |
537 |
{ |
538 |
this.StatusKeeper.SetFileOverlayStatus(state.Path, FileOverlayStatus.Modified); |
539 |
|
540 |
|
541 |
|
542 |
CloudClient.MoveObject(PithosContainer, state.OldFileName,PithosContainer, state.FileName); |
543 |
|
544 |
this.StatusKeeper.SetFileStatus(state.Path, FileStatus.Unchanged); |
545 |
this.StatusKeeper.SetFileOverlayStatus(state.Path, FileOverlayStatus.Normal); |
546 |
Workflow.RaiseChangeNotification(state.Path); |
547 |
} |
548 |
|
549 |
private void DeleteCloudFile(string fileName) |
550 |
{ |
551 |
Contract.Requires(!Path.IsPathRooted(fileName)); |
552 |
|
553 |
this.StatusKeeper.SetFileOverlayStatus(fileName, FileOverlayStatus.Modified); |
554 |
|
555 |
CloudClient.MoveObject(PithosContainer,fileName,TrashContainer,fileName); |
556 |
this.StatusKeeper.ClearFileStatus(fileName); |
557 |
this.StatusKeeper.RemoveFileOverlayStatus(fileName); |
558 |
} |
559 |
|
560 |
private void DownloadCloudFile(string container, string fileName, string localPath) |
561 |
{ |
562 |
var state = StatusKeeper.GetNetworkState(fileName); |
563 |
//Abort if the file is already being uploaded or downloaded |
564 |
if (state != NetworkState.None) |
565 |
return; |
566 |
|
567 |
StatusKeeper.SetNetworkState(localPath,NetworkState.Downloading); |
568 |
CloudClient.GetObject(container, fileName, localPath) |
569 |
.ContinueWith(t=> |
570 |
CloudClient.GetObjectInfo(container,fileName)) |
571 |
.ContinueWith(t=> |
572 |
StatusKeeper.StoreInfo(fileName,t.Result)) |
573 |
.ContinueWith(t=> |
574 |
StatusKeeper.SetNetworkState(localPath,NetworkState.None)) |
575 |
.Wait(); |
576 |
} |
577 |
|
578 |
private void UploadCloudFile(string fileName, long fileSize, string path,string hash) |
579 |
{ |
580 |
Contract.Requires(!Path.IsPathRooted(fileName)); |
581 |
var state=StatusKeeper.GetNetworkState(fileName); |
582 |
//Abort if the file is already being uploaded or downloaded |
583 |
if (state != NetworkState.None) |
584 |
return; |
585 |
|
586 |
StatusKeeper.SetNetworkState(fileName,NetworkState.Uploading); |
587 |
|
588 |
//Even if GetObjectInfo times out, we can proceed with the upload |
589 |
var info = CloudClient.GetObjectInfo(PithosContainer, fileName); |
590 |
Task.Factory.StartNew(() => |
591 |
{ |
592 |
if (hash != info.Hash) |
593 |
{ |
594 |
Task.Factory.StartNew(() => |
595 |
this.StatusKeeper.SetFileOverlayStatus(path, FileOverlayStatus.Modified)) |
596 |
.ContinueWith(t => |
597 |
CloudClient.PutObject(PithosContainer, fileName, path, hash)); |
598 |
} |
599 |
else |
600 |
{ |
601 |
this.StatusKeeper.StoreInfo(path,info); |
602 |
} |
603 |
}) |
604 |
.ContinueWith(t => |
605 |
this.StatusKeeper.SetFileState(path, FileStatus.Unchanged, FileOverlayStatus.Normal)) |
606 |
.ContinueWith(t=> |
607 |
this.StatusKeeper.SetNetworkState(path,NetworkState.None)) |
608 |
.Wait(); |
609 |
Workflow.RaiseChangeNotification(path); |
610 |
} |
611 |
|
612 |
private Dictionary<WatcherChangeTypes, FileStatus> _statusDict = new Dictionary<WatcherChangeTypes, FileStatus> |
613 |
{ |
614 |
{WatcherChangeTypes.Created,FileStatus.Created}, |
615 |
{WatcherChangeTypes.Changed,FileStatus.Modified}, |
616 |
{WatcherChangeTypes.Deleted,FileStatus.Deleted}, |
617 |
{WatcherChangeTypes.Renamed,FileStatus.Renamed} |
618 |
}; |
619 |
|
620 |
private WorkflowState UpdateFileStatus(WorkflowState state) |
621 |
{ |
622 |
string path = state.Path; |
623 |
FileStatus status = _statusDict[state.TriggeringChange]; |
624 |
var oldStatus = Workflow.StatusKeeper.GetFileStatus(path); |
625 |
if (status == oldStatus) |
626 |
{ |
627 |
state.Status = status; |
628 |
state.Skip = true; |
629 |
return state; |
630 |
} |
631 |
if (state.Status == FileStatus.Renamed) |
632 |
Workflow.ClearFileStatus(path); |
633 |
|
634 |
state.Status = Workflow.SetFileStatus(path, status); |
635 |
return state; |
636 |
} |
637 |
|
638 |
private WorkflowState UpdateOverlayStatus(WorkflowState state) |
639 |
{ |
640 |
if (state.Skip) |
641 |
return state; |
642 |
|
643 |
switch (state.Status) |
644 |
{ |
645 |
case FileStatus.Created: |
646 |
case FileStatus.Modified: |
647 |
this.StatusKeeper.SetFileOverlayStatus(state.Path, FileOverlayStatus.Modified); |
648 |
break; |
649 |
case FileStatus.Deleted: |
650 |
this.StatusKeeper.RemoveFileOverlayStatus(state.Path); |
651 |
break; |
652 |
case FileStatus.Renamed: |
653 |
this.StatusKeeper.RemoveFileOverlayStatus(state.OldPath); |
654 |
this.StatusKeeper.SetFileOverlayStatus(state.Path, FileOverlayStatus.Modified); |
655 |
break; |
656 |
case FileStatus.Unchanged: |
657 |
this.StatusKeeper.SetFileOverlayStatus(state.Path, FileOverlayStatus.Normal); |
658 |
break; |
659 |
} |
660 |
|
661 |
if (state.Status==FileStatus.Deleted) |
662 |
Workflow.RaiseChangeNotification(Path.GetDirectoryName(state.Path)); |
663 |
else |
664 |
Workflow.RaiseChangeNotification(state.Path); |
665 |
return state; |
666 |
} |
667 |
|
668 |
|
669 |
private WorkflowState UpdateFileChecksum(WorkflowState state) |
670 |
{ |
671 |
if (state.Skip) |
672 |
return state; |
673 |
|
674 |
if (state.Status == FileStatus.Deleted) |
675 |
return state; |
676 |
|
677 |
string path = state.Path; |
678 |
string hash = Signature.CalculateHash(path); |
679 |
|
680 |
StatusKeeper.UpdateFileChecksum(path, hash); |
681 |
|
682 |
state.Hash = hash; |
683 |
return state; |
684 |
} |
685 |
|
686 |
|
687 |
|
688 |
private FileSystemEventArgs CalculateSignature(FileSystemEventArgs arg) |
689 |
{ |
690 |
Debug.WriteLine(String.Format("{0} {1} {2}", arg.ChangeType, arg.Name, arg.FullPath), "INFO"); |
691 |
return arg; |
692 |
} |
693 |
|
694 |
void OnFileEvent(object sender, FileSystemEventArgs e) |
695 |
{ |
696 |
_fileEvents.Add(new WorkflowState{Path=e.FullPath,FileName = e.Name,TriggeringChange=e.ChangeType}); |
697 |
} |
698 |
|
699 |
void OnRenameEvent(object sender, RenamedEventArgs e) |
700 |
{ |
701 |
_fileEvents.Add(new WorkflowState { OldPath=e.OldFullPath,OldFileName=e.OldName, |
702 |
Path = e.FullPath, FileName = e.Name, TriggeringChange = e.ChangeType }); |
703 |
} |
704 |
|
705 |
public void Stop() |
706 |
{ |
707 |
if (_watcher != null) |
708 |
{ |
709 |
_watcher.Changed -= OnFileEvent; |
710 |
_watcher.Created -= OnFileEvent; |
711 |
_watcher.Deleted -= OnFileEvent; |
712 |
_watcher.Renamed -= OnRenameEvent; |
713 |
_watcher.Dispose(); |
714 |
} |
715 |
_watcher = null; |
716 |
_fileEvents.CompleteAdding(); |
717 |
if (timer != null) |
718 |
timer.Dispose(); |
719 |
timer = null; |
720 |
StopStatusService(); |
721 |
} |
722 |
|
723 |
|
724 |
~PithosMonitor() |
725 |
{ |
726 |
Dispose(false); |
727 |
} |
728 |
|
729 |
public void Dispose() |
730 |
{ |
731 |
Dispose(true); |
732 |
GC.SuppressFinalize(this); |
733 |
} |
734 |
|
735 |
protected virtual void Dispose(bool disposing) |
736 |
{ |
737 |
if (disposing) |
738 |
{ |
739 |
Stop(); |
740 |
} |
741 |
} |
742 |
|
743 |
|
744 |
} |
745 |
|
746 |
public interface IStatusNotification |
747 |
{ |
748 |
void NotifyChange(string status,TraceLevel level=TraceLevel.Info); |
749 |
} |
750 |
} |