/// <summary>
/// Run Mainline for the incoming Blob watcher.
/// </summary>
/// <param name="ct"></param>
/// <param name="storageAccountString"></param>
/// <param name="ContainersToScan"></param>
/// <returns></returns>
public static async Task runInboundJobWatcher(CancellationToken ct, string storageAccountString, string[] ContainersToScan)
{
_storageAccountString = storageAccountString;
// var pollingInterval = TimeSpan.FromSeconds(60);
int msBetweenPolls = 1000 * Configuration.MBFConfiguration.BlobWatcherPollingInterval;
// Run the mainline for BlobWatcher
CloudStorageAccount account = CloudStorageAccount.Parse(storageAccountString);
var cl = account.CreateCloudBlobClient();
// Set up the container objects
var containers = new List <CloudBlobContainer>(ContainersToScan.Length);
foreach (var containerName in ContainersToScan)
{
containers.Add(cl.GetContainerReference(containerName));
}
Trace.TraceInformation("Scanning: containers=(" + String.Join(", ", ContainersToScan) + ")");
try
{
while (!ct.IsCancellationRequested)
{
// for now, just run the scan at serially... later change to background run in parallel.
foreach (var cbc in containers)
{
try
{
BlobWatcher.ScanContainerForInbound(cbc);
}
catch (Exception ex)
{
if (ex as OperationCanceledException != null)
{
throw;
}
Trace.TraceInformation("Exception scanning container {0}, Msg='{1}'", cbc.Name, ex.Message);
// and continue
}
}
Trace.TraceInformation("Scanning: back to sleep for {0} secs", msBetweenPolls / 1000);
await Task.Delay(msBetweenPolls);
}
}
catch (OperationCanceledException ocEx)
{
var ex = ocEx; // to avoid compiler warning
// Expect this exception to be thrown in normal circumstances or check
// the cancellation token. If the role instances are shutting down, a
// cancellation request will be signaled.
Trace.TraceInformation("Stopping BlobWatcher service, cancellation requested");
// Re-throw the Operation cancellation exception
throw;
}
}
/// <summary>
/// Execute all MBF watcher jobs
/// </summary>
/// <returns>null</returns>
public async Task Run()
{
string s = MBFConfiguration.GetConfigurationValue("ContainersToScan", "MediaButler.Workflow.WorkerRole");
var containers = s.Split(',');
string[] ContainersToScan = containers;
var taskFailedRequests = Task.Run(() => JobManager.getWorkflowFailedOperations(Token, _storageAccountString));
var taskSuccessfulRequests = Task.Run(() => JobManager.getWorkflowSuccessOperations(Token, _storageAccountString));
var taskProcessIncomingJobs = Task.Run(() => BlobWatcher.runInboundJobWatcher(Token, _storageAccountString, ContainersToScan));
Task.WaitAll(taskFailedRequests, taskSuccessfulRequests, taskProcessIncomingJobs);
}