async private void Login_Click(object sender, RoutedEventArgs e)
{
// Initialize online media manager
OnlineMediaManager onlineMediaManager = await OnlineMediaManager.RequestMediaManagerAsync();
await onlineMediaManager.ProvisionAsync();
MessageBox.Show("Done!");
}
async private void Logout_Click(object sender, RoutedEventArgs e)
{
// Uninitialize online media manager
OnlineMediaManager onlineMediaManager = await OnlineMediaManager.RequestMediaManagerAsync();
// Must wait for it to complete before logging back in
await onlineMediaManager.DeprovisionAsync();
MessageBox.Show("Done!");
}
/// <summary>
/// Agent that runs a scheduled task
/// </summary>
/// <param name="task">
/// The invoked task
/// </param>
/// <remarks>
/// This method is called when a periodic or resource intensive task is invoked
/// </remarks>
async protected override void OnInvoke(ScheduledTask task)
{
Logger.Log("Agent", "- - - - - - - - - - - - -");
Logger.Log("Agent", "Agent invoked -> " + task.Name);
this.manager = await OnlineMediaManager.RequestMediaManagerAsync();
// Use the name of the task to differentiate between the ExtensilityTaskAgent
// and the ScheduledTaskAgent
if (task.Name == "ExtensibilityTaskAgent")
{
List <Task> inprogressOperations = new List <Task>();
OperationQueue operationQueue = await SocialManager.GetOperationQueueAsync();
ISocialOperation socialOperation = await operationQueue.GetNextOperationAsync();
while (null != socialOperation)
{
Logger.Log("Agent", "Dequeued an operation of type " + socialOperation.Type.ToString());
try
{
switch (socialOperation.Type)
{
case SocialOperationType.DownloadAlbumItems:
await ProcessOperation(socialOperation as DownloadAlbumItemsOperation);
break;
case SocialOperationType.DownloadAlbumCover:
await ProcessOperation(socialOperation as DownloadAlbumCoverOperation);
break;
case SocialOperationType.DownloadImage:
// Improve performance by downloading the image binaries in parallel.
// The app is limitted to a maximum of 8 simultaneous network requests.
// Optimally, the maximum number of parallel operations is between 4-8.
// Throttle to 4 parallel image downloads.
if (inprogressOperations.Count >= 4)
{
Task completed = await Task.WhenAny(inprogressOperations);
inprogressOperations.Remove(completed);
}
// Don't wait, download in parallel
inprogressOperations.Add(ProcessOperation(socialOperation as DownloadImageOperation));
break;
default:
// This should never happen
await ProcessOperation(socialOperation);
break;
}
// The agent can only use up to 20 MB
// Logging the memory usage information for debugging purposes
Logger.Log("Agent", string.Format("Completed operation {0}, memusage: {1}kb/{2}kb",
socialOperation.ToString(),
(int)((long)DeviceExtendedProperties.GetValue("ApplicationCurrentMemoryUsage")) / 1024,
(int)((long)DeviceExtendedProperties.GetValue("ApplicationPeakMemoryUsage")) / 1024));
// This can block for up to 1 minute. Don't expect to run instantly every time.
socialOperation = await operationQueue.GetNextOperationAsync();
}
catch (Exception e)
{
Helpers.HandleException(e);
}
}
Logger.Log("Agent", "No more operations in the queue");
// wait for all the operations to complete
if (inprogressOperations.Count > 0)
{
await Task.WhenAll(inprogressOperations);
inprogressOperations.Clear();
}
}
NotifyComplete();
}
/// <summary>
/// Agent that runs a scheduled task
/// </summary>
/// <param name="task">
/// The invoked task
/// </param>
/// <remarks>
/// This method is called when a periodic or resource intensive task is invoked
/// </remarks>
async protected override void OnInvoke(ScheduledTask task)
{
Logger.Log("Agent", "- - - - - - - - - - - - -");
Logger.Log("Agent", "Agent invoked -> " + task.Name);
this.manager = await OnlineMediaManager.RequestMediaManagerAsync();
// Use the name of the task to differentiate between the ExtensilityTaskAgent
// and the ScheduledTaskAgent
if (task.Name == "ExtensibilityTaskAgent")
{
List<Task> inprogressOperations = new List<Task>();
OperationQueue operationQueue = await SocialManager.GetOperationQueueAsync();
ISocialOperation socialOperation = await operationQueue.GetNextOperationAsync();
while (null != socialOperation)
{
Logger.Log("Agent", "Dequeued an operation of type " + socialOperation.Type.ToString());
try
{
switch (socialOperation.Type)
{
case SocialOperationType.DownloadAlbumItems:
await ProcessOperation(socialOperation as DownloadAlbumItemsOperation);
break;
case SocialOperationType.DownloadAlbumCover:
await ProcessOperation(socialOperation as DownloadAlbumCoverOperation);
break;
case SocialOperationType.DownloadImage:
// Improve performance by downloading the image binaries in parallel.
// The app is limitted to a maximum of 8 simultaneous network requests.
// Optimally, the maximum number of parallel operations is between 4-8.
// Throttle to 4 parallel image downloads.
if (inprogressOperations.Count >= 4)
{
Task completed = await Task.WhenAny(inprogressOperations);
inprogressOperations.Remove(completed);
}
// Don't wait, download in parallel
inprogressOperations.Add(ProcessOperation(socialOperation as DownloadImageOperation));
break;
default:
// This should never happen
await ProcessOperation(socialOperation);
break;
}
// The agent can only use up to 20 MB
// Logging the memory usage information for debugging purposes
Logger.Log("Agent", string.Format("Completed operation {0}, memusage: {1}kb/{2}kb",
socialOperation.ToString(),
(int)((long)DeviceExtendedProperties.GetValue("ApplicationCurrentMemoryUsage")) / 1024,
(int)((long)DeviceExtendedProperties.GetValue("ApplicationPeakMemoryUsage")) / 1024));
// This can block for up to 1 minute. Don't expect to run instantly every time.
socialOperation = await operationQueue.GetNextOperationAsync();
}
catch (Exception e)
{
Helpers.HandleException(e);
}
}
Logger.Log("Agent", "No more operations in the queue");
// wait for all the operations to complete
if (inprogressOperations.Count > 0)
{
await Task.WhenAll(inprogressOperations);
inprogressOperations.Clear();
}
}
NotifyComplete();
}