public override void Refresh(DetailLevel detailLevel = null, IEnumerable <BatchClientBehavior> additionalBehaviors = null)
{
using (System.Threading.Tasks.Task asyncTask = RefreshAsync(detailLevel, additionalBehaviors))
{
asyncTask.WaitAndUnaggregateException(this.CustomBehaviors, additionalBehaviors);
}
}
/// <summary>
/// Downloads a file on this TVM
/// </summary>
/// <param name="filePath">The path of the file on the tVM</param>
/// <param name="destinationStream">The target stream to place the file into</param>
public async System.Threading.Tasks.Task DownloadFileAsync(string filePath, Stream destinationStream)
{
System.Threading.Tasks.Task asyncTask = this.DownloadVMFile(filePath, destinationStream);
AsyncOperationTracker.Instance.AddTrackedOperation(new AsyncOperationModel(
asyncTask,
new VMOperation(VMOperation.GetVMFile, this.ParentPool.Name, this.VM.Name)));
await asyncTask;
}
/// <summary>
/// Downloads an RDP file associated with this TVM
/// </summary>
/// <param name="destinationStream">The target stream to place the RDP file into</param>
public async System.Threading.Tasks.Task DownloadRDPAsync(Stream destinationStream)
{
try
{
System.Threading.Tasks.Task asyncTask = this.VM.GetRDPFileAsync(destinationStream);
AsyncOperationTracker.Instance.AddTrackedOperation(new AsyncOperationModel(
asyncTask,
new VMOperation(VMOperation.GetRdp, this.ParentPool.Name, this.VM.Name)));
await asyncTask;
}
catch (Exception e)
{
Messenger.Default.Send(new GenericDialogMessage(e.ToString()));
}
}
/// <summary>
/// Reimages the TVM
/// </summary>
public async System.Threading.Tasks.Task ReimageAsync()
{
try
{
System.Threading.Tasks.Task asyncTask = this.VM.ReimageAsync();
AsyncOperationTracker.Instance.AddTrackedOperation(new AsyncOperationModel(
asyncTask,
new VMOperation(VMOperation.Reimage, this.ParentPool.Name, this.VM.Name)));
await asyncTask;
await this.RefreshAsync(ModelRefreshType.Basic, showTrackedOperation : false);
}
catch (Exception e)
{
Messenger.Default.Send(new GenericDialogMessage(e.ToString()));
}
}
public void SpinIndexingWorkers()
{
if (backgroundWorkersSpun)
throw new InvalidOperationException("The background workers has already been spun and cannot be spun again");
backgroundWorkersSpun = true;
workContext.StartIndexing();
indexingBackgroundTask = System.Threading.Tasks.Task.Factory.StartNew(
indexingExecuter.Execute,
CancellationToken.None, TaskCreationOptions.LongRunning, backgroundTaskScheduler);
reducingBackgroundTask = System.Threading.Tasks.Task.Factory.StartNew(
new ReducingExecuter(workContext).Execute,
CancellationToken.None, TaskCreationOptions.LongRunning, backgroundTaskScheduler);
}
private void SearchForDevices(List<string> ips, Action<List<SyncDevice>> actionDiscoveryEnded)
{
int ipCount = 0;
_cancellationTokenSource = new CancellationTokenSource();
ParallelOptions parallelOptions = new ParallelOptions();
parallelOptions.CancellationToken = _cancellationTokenSource.Token;
#if !WINDOWS_PHONE
parallelOptions.MaxDegreeOfParallelism = 2; //System.Environment.ProcessorCount; // Not available on WP8
#endif
_currentTask = System.Threading.Tasks.Task.Factory.StartNew(() =>
{
var devices = new List<SyncDevice>();
try
{
Tracing.Log("SyncDiscoveryService - SearchForDevices - processorCount: {0}", System.Environment.ProcessorCount);
IsRunning = true;
Parallel.For(1, ips.Count, parallelOptions, (index) =>
{
try
{
Tracing.Log("SyncDiscoveryService - Pinging {0}...", ips[index]);
string url = string.Format("http://{0}:{1}/sessionsapp.version", ips[index], Port);
//string content = await _httpClient.GetStringAsync(url); // This seems to pile up tasks until they hit await...
var task = _httpClient.GetStringAsync(url);
string content = task.Result; // This is the good way to use tasks and async properly in Parallel.For
Tracing.Log("SyncDiscoveryService - Got version from {0}: {1}", ips[index], content);
var device = XmlSerialization.Deserialize<SyncDevice>(content);
if (device.SyncVersionId.ToUpper() == SyncListenerService.SyncVersionId.ToUpper())
{
device.Url = String.Format("http://{0}:{1}/", ips[index], Port);
devices.Add(device);
lock (_lock)
{
_devices.Add(device);
}
Tracing.Log("SyncDiscoveryService - Raising OnDeviceFound event...");
if (OnDeviceFound != null)
OnDeviceFound(device);
Tracing.Log("SyncDiscoveryService - The following host is available: {0}", ips[index]);
}
}
catch (Exception ex)
{
// Ignore IP address
//Tracing.Log("SyncDiscoveryService - SearchForDevices - Parallel.For - Exception: {0}", ex);
}
finally
{
ipCount++;
float percentageDone = ((float)ipCount / (float)ips.Count) * 100;
if (OnDiscoveryProgress != null)
OnDiscoveryProgress(percentageDone, String.Format("Finding devices on local network ({0:0}%)", percentageDone));
}
});
IsRunning = false;
Tracing.Log("SyncDiscoveryService - Discovery done!");
if (actionDiscoveryEnded != null)
actionDiscoveryEnded(devices);
}
catch (System.OperationCanceledException ex)
{
Tracing.Log("SyncDiscoveryService - SearchForDevices - OperationCanceledException: {0}", ex);
IsRunning = false;
if (actionDiscoveryEnded != null)
actionDiscoveryEnded(new List<SyncDevice>());
}
catch (Exception ex)
{
Tracing.Log("SyncDiscoveryService - SearchForDevices - Exception: {0}", ex);
IsRunning = false;
}
_devices = devices.ToList();
});
}
public override async Task RefreshAsync(ModelRefreshType refreshType, bool showTrackedOperation = true)
{
if (refreshType.HasFlag(ModelRefreshType.Basic))
{
try
{
Messenger.Default.Send(new UpdateWaitSpinnerMessage(WaitSpinnerPanel.UpperRight, true));
System.Threading.Tasks.Task asyncTask = this.VM.RefreshAsync();
if (showTrackedOperation)
{
AsyncOperationTracker.Instance.AddTrackedOperation(new AsyncOperationModel(
asyncTask,
new VMOperation(VMOperation.Refresh, this.ParentPool.Name, this.VM.Name)));
}
else
{
AsyncOperationTracker.Instance.AddTrackedInternalOperation(asyncTask);
}
await asyncTask;
this.LastUpdatedTime = DateTime.UtcNow;
//
// Fire property change events for this models properties
//
this.FireChangesOnRefresh(ModelRefreshType.Basic);
}
catch (Exception e)
{
this.HandleException(e);
}
finally
{
Messenger.Default.Send(new UpdateWaitSpinnerMessage(WaitSpinnerPanel.UpperRight, false));
}
}
if (refreshType.HasFlag(ModelRefreshType.Children))
{
try
{
Messenger.Default.Send(new UpdateWaitSpinnerMessage(WaitSpinnerPanel.LowerRight, true));
//Set this before the children load so that on revisit we know we have loaded the children (or are in the process)
this.HasLoadedChildren = true;
try
{
System.Threading.Tasks.Task <List <ITaskFile> > asyncTask = this.ListFilesAsync();
AsyncOperationTracker.Instance.AddTrackedOperation(new AsyncOperationModel(
asyncTask,
new VMOperation(VMOperation.ListVMFiles, this.ParentPool.Name, this.VM.Name)));
this.Files = await asyncTask;
}
catch (Exception)
{
this.HasLoadedChildren = false; //On exception, we failed to load children so try again next time
//Swallow the exception to stop popups from occuring for every bad VM
}
this.FireChangesOnRefresh(ModelRefreshType.Children);
}
catch (Exception e)
{
this.HasLoadedChildren = false; //On exception, we failed to load children so try again next time
this.HandleException(e);
}
finally
{
Messenger.Default.Send(new UpdateWaitSpinnerMessage(WaitSpinnerPanel.LowerRight, false));
}
}
}
