public async Task <IDisposable> SubscribeAsync(LeaseObserver <T> observer)
{
if (!this.observers.Contains(observer))
{
this.observers.Add(observer);
foreach (var lease in this.partitionManager.currentlyOwnedShards.Values)
{
try
{
await observer.OnLeaseAquiredAsync(lease);
}
catch (Exception ex)
{
// Eat any exceptions during notification of observers
this.partitionManager.settings.Logger.PartitionManagerError(
partitionManager.accountName,
partitionManager.taskHub,
partitionManager.workerName,
lease.PartitionId,
$"Failed during notification of observers of {this.partitionManager.leaseManager} lease: {ex.ToString()}");
}
}
}
return(new Unsubscriber(this.observers, observer));
}
public Task <IDisposable> SubscribeAsync(
Func <T, Task> leaseAquiredDelegate,
Func <T, CloseReason, Task> leaseReleasedDelegate)
{
var leaseObserver = new LeaseObserver <T>(leaseAquiredDelegate, leaseReleasedDelegate);
return(this.leaseObserverManager.SubscribeAsync(leaseObserver));
}
internal Unsubscriber(List <LeaseObserver <T> > observers, LeaseObserver <T> observer)
{
this._observers = observers;
this._observer = observer;
}