/// <summary>
/// Enumerate infos of all cloud service schedules.
/// </summary>
public List <CloudServiceSchedulingInfo> GetSchedules()
{
// TODO: Redesign to make it self-contained (so that we don't need to pass the name as well)
return(_blobs.ListBlobNames(ScheduledServiceStateName.GetPrefix())
.Select(name => Tuple.Create(name, _blobs.GetBlob(name, _runtimeSerializer)))
.Where(pair => pair.Item2.HasValue)
.Select(pair =>
{
var state = pair.Item2.Value;
var info = new CloudServiceSchedulingInfo
{
ServiceName = pair.Item1.ServiceName,
TriggerInterval = state.TriggerInterval,
LastExecuted = state.LastExecuted,
WorkerScoped = state.SchedulePerWorker,
LeasedBy = Maybe <string> .Empty,
LeasedSince = Maybe <DateTimeOffset> .Empty,
LeasedUntil = Maybe <DateTimeOffset> .Empty
};
if (state.Lease != null)
{
info.LeasedBy = state.Lease.Owner;
info.LeasedSince = state.Lease.Acquired;
info.LeasedUntil = state.Lease.Timeout;
}
return info;
})
.ToList());
}
/// <summary>
/// Forcibly remove the synchronization lease of a periodic cloud service
/// </summary>
public void ReleaseLease(string serviceName)
{
var blobRef = new ScheduledServiceStateName(serviceName);
_blobProvider.UpdateIfNotModified(
blobRef,
currentState =>
{
if (!currentState.HasValue)
{
return Result<ScheduledServiceState>.CreateError("No service state available.");
}
var state = currentState.Value;
// remove lease
state.Lease = null;
return Result.CreateSuccess(state);
});
}
/// <summary>
/// Remove the scheduling information of a cloud service
/// </summary>
public void ResetSchedule(string serviceName)
{
var blobRef = new ScheduledServiceStateName(serviceName);
_blobProvider.DeleteBlob(blobRef);
}
/// <summary>
/// Set the trigger interval of a cloud service.
/// </summary>
public void SetTriggerInterval(string serviceName, TimeSpan triggerInterval)
{
var blobRef = new ScheduledServiceStateName(serviceName);
_blobProvider.UpdateIfNotModified(blobRef,
blob =>
{
var state = blob.Value;
state.TriggerInterval = triggerInterval;
return state;
});
}
/// <summary>
/// Enumerate the names of all scheduled cloud service.
/// </summary>
public List <string> GetScheduledServiceNames()
{
return(_blobs.ListBlobNames(ScheduledServiceStateName.GetPrefix())
.Select(reference => reference.ServiceName).ToList());
}
