public async Task DoWorkAsync(CancellationToken cancellationToken)
{
CloudQueueMessage retrievedMessage;
DateTime startTime;
try
{
// Get the next message
retrievedMessage = await WorkQueue.GetMessageAsync(TimeSpan.FromHours(5), null, null, cancellationToken).ConfigureAwait(false);
if (retrievedMessage == null)
{
return;
}
startTime = DateTime.UtcNow;
}
catch
{
return;
}
var messageContents = retrievedMessage.AsString;
SlicingOptions slicingOptions = null;
try
{
// Get the message
slicingOptions = JsonConvert.DeserializeObject <SlicingOptions>(messageContents);
// Make some fresh directories
CreateDirectories(slicingOptions);
// Populate input file locations
slicingOptions.Obj = Path.Combine(inputPath, slicingOptions.Obj);
slicingOptions.Texture = Path.Combine(inputPath, slicingOptions.Texture);
// Track work started
var workTrackingEntity = TrackWorkStarted(startTime, slicingOptions);
// ** Prep
Trace.TraceInformation("Syncing data");
await VerifySourceDataAsync(slicingOptions, cancellationToken);
// ** Run
Trace.TraceInformation("Starting Processing");
CubeManager manager = new CubeManager(slicingOptions);
if (!string.IsNullOrEmpty(slicingOptions.Texture))
{
slicingOptions.TextureInstance = new Texture(manager.ObjInstance, slicingOptions.Texture);
}
var vertexCounts = await manager.GenerateCubesForTextureTileAsync(outputPath, slicingOptions.TextureTile, slicingOptions, cancellationToken).ConfigureAwait(false);
// Track work completed
TrackWorkCompleted(workTrackingEntity, vertexCounts);
// ** Check if set is complete
CheckForComplete(slicingOptions, manager);
// ** Cleanup
slicingOptions.TextureInstance?.Dispose();
Trace.TraceInformation("Writing Results");
UploadResultData(slicingOptions);
WorkQueue.DeleteMessage(retrievedMessage);
}
catch (Exception ex)
{
Trace.TraceError(ex.ToString());
// Release texure if we have one
slicingOptions?.TextureInstance?.Dispose();
// Either delete this message or make it visible again for retry
if (retrievedMessage.DequeueCount > 3)
{
if (slicingOptions != null)
{
Trace.TraceError($"Maximum Dequeue count hit for message \"{retrievedMessage.AsString}\". Failing set {slicingOptions.SetKey}");
StorageUtilities.UpdateSetFailed(TableClient, slicingOptions.SetKey, ex.ToString());
}
WorkQueue.DeleteMessage(retrievedMessage);
}
else
{
WorkQueue.UpdateMessage(retrievedMessage, TimeSpan.FromSeconds(10), MessageUpdateFields.Visibility);
}
}
finally
{
if (Directory.Exists(outputPath))
{
Directory.Delete(outputPath, true);
}
if (Directory.Exists(inputPath))
{
Directory.Delete(inputPath, true);
}
}
}
