/// <summary>
/// This method serves as the main thread of backend processing.
/// The Run method should implement a long-running thread that carries
// out operations
/// </summary>
public void Run()
{
while (true)
{
try
{
DataSources ds = new DataSources();
// Retrieve a new message from the queue.
CloudQueueMessage msg = ds.WordQuque.GetMessage(TimeSpan.FromSeconds(1));
if (msg != null)
{
// Process the task.
var messageParts = msg.AsString.Split(new char[] { ',' });
WordEntry entry = ds.GetWordEntry(messageParts[0], messageParts[1]);
entry.Content = entry.Content.ToUpper();
entry.IsProcessed = true;
ds.UpdateWordEntry(entry);
// Delete message only when the task is completed.
ds.WordQuque.DeleteMessage(msg);
Trace.TraceInformation("Process result \"{0}\".", entry.Content);
}
else
{
Thread.Sleep(1000);
}
}
catch (Exception ex)
{
Trace.TraceError("Exception when processing queue item. Message: '{0}'", ex.Message);
System.Threading.Thread.Sleep(5000);
}
}
}
public void UpdateWordEntry(WordEntry updatedItem)
{
_context.UpdateObject(updatedItem);
_context.SaveChanges();
}
public void AddWordEntry(WordEntry newItem)
{
_context.AddObject("WordEntry", newItem);
_context.SaveChanges();
}
