public static void DeleteProgram(AMSQueueItem message, CancellationToken cancellationToken)
{
TraceHelper.AMSTaskTraceSource.TraceEvent(TraceEventType.Verbose, 60015, "Delete expired programs");
int count = LiveChannelManager.DeleteAllExpiredPrograms(AMSWorkerSettings.GetConfig().Durations.GetDuration("programExpireTime", TimeSpan.FromDays(1)));
TraceHelper.AMSTaskTraceSource.TraceEvent(TraceEventType.Verbose, 60015, "{0} programs deleted", count);
}
public static void StartAllTasks(CancellationToken cancellationToken)
{
AMSWorkerSettings settings = AMSWorkerSettings.GetConfig();
DoLoopTask(StartEventsInTimeFrame, DefaultDelayTime, cancellationToken);
DoLoopTask(StopEventsInTimeFrame, DefaultDelayTime, cancellationToken);
DoLoopTask(ReadQueue, DefaultDelayTime, cancellationToken);
DoLoopTask(GenerateSyncChannelInfoMessages, settings.Durations.GetDuration("syncChannelInfoInterval", DefaultDelayTime), cancellationToken);
DoLoopTask(GenerateStopChannelMessages, settings.Durations.GetDuration("stopChannelInterval", DefaultDelayTime), cancellationToken);
DoLoopTask(GenerateDeleteProgramMessages, settings.Durations.GetDuration("deleteProgamInterval", DefaultDelayTime), cancellationToken);
}
private static void SimulateOrExecuteAction(Action action, TimeSpan delay, Action afterDelayAction = null)
{
if (AMSWorkerSettings.GetConfig().EnableSimulation == false)
{
action();
}
else
{
Task.Delay(delay).Wait();
if (afterDelayAction != null)
{
afterDelayAction();
}
}
}
public static void GenerateStopChannelMessages(CancellationToken cancellationToken)
{
AMSWorkerSettings settings = AMSWorkerSettings.GetConfig();
AMSChannelCollection channels =
AMSChannelSqlAdapter.Instance.LoadNeedStopChannels(settings.Durations.GetDuration("stopChannelLeadTime", TimeSpan.FromHours(1)));
AMSQueueItemCollection messages = new AMSQueueItemCollection();
foreach (AMSChannel channel in channels)
{
AMSQueueItem message = new AMSQueueItem();
message.ItemType = AMSQueueItemType.StopChannel;
message.ResourceID = channel.ID;
message.ResourceName = channel.Name;
messages.Add(message);
}
GetQueue().AddMessages(string.Empty, messages.ToArray());
}
/// <summary>
/// 检查需要启动的事件
/// </summary>
/// <returns></returns>
public static void StartEventsInTimeFrame(CancellationToken cancellationToken)
{
AMSWorkerSettings settings = AMSWorkerSettings.GetConfig();
AMSEventCollection events = AMSEventSqlAdapter.Instance.LoadNeedStartEvents(settings.Durations.GetDuration("createChannelWarmup", TimeSpan.FromMinutes(20)));
AMSQueueItemCollection messages = new AMSQueueItemCollection();
foreach (AMSEvent eventData in events)
{
if (cancellationToken.IsCancellationRequested)
{
break;
}
if (LockHelper.IsLockAvailable(eventData))
{
messages.Add(eventData.ToQueueMessage(AMSQueueItemType.StartEvent));
TraceHelper.AMSTaskTraceSource.TraceEvent(TraceEventType.Verbose, 60011, "Add start new event {0} to queue.", eventData.ID);
}
}
GetQueue().AddMessages(string.Empty, messages.ToArray());
}
public static void ReadQueue(CancellationToken cancellationToken)
{
AMSQueueItem message = GetQueue().GetMessages(string.Empty).SingleOrDefault();
if (message != null)
{
//Trace.TraceInformation("Message: ID={0}, ResourceID={1}, Name={2}, ItemType={3}",
// message.ID, message.ResourceID, message.ResourceID, message.ItemType);
if (AMSWorkerSettings.GetConfig().ItemTypes.IsEnabled(message.ItemType))
{
switch (message.ItemType)
{
case AMSQueueItemType.StartEvent:
RunQueueTask(message, cancellationToken, AMSOperations.StartEvent);
break;
case AMSQueueItemType.StopEvent:
RunQueueTask(message, cancellationToken, AMSOperations.StopEvent);
break;
case AMSQueueItemType.SyncChannelInfo:
RunQueueTask(message, cancellationToken, AMSOperations.SyncChannelInfo);
break;
case AMSQueueItemType.StopChannel:
RunQueueTask(message, cancellationToken, AMSOperations.StopChannel);
break;
case AMSQueueItemType.DeleteProgram:
RunQueueTask(message, cancellationToken, AMSOperations.DeleteProgram);
break;
}
}
}
}
