/// <summary>
/// 启动事件中的一个频道和节目
/// </summary>
/// <param name="eventData"></param>
/// <param name="ec"></param>
/// <param name="cancellationToken"></param>
private static void StartOneChannelAndProgram(AMSEvent eventData, AMSEventChannel ec, CancellationToken cancellationToken)
{
try
{
if (ec.State == AMSEventState.NotStart)
{
AMSEventSqlAdapter.Instance.UpdateEventChannelState(ec.EventID, ec.ChannelID, AMSEventState.Starting);
}
AMSChannel channel = StartChannel(ec.ChannelID, cancellationToken);
if (cancellationToken.IsCancellationRequested == false)
{
if (channel != null && channel.State == AMSChannelState.Running)
{
LockHelper.ExtendLockTime(eventData);
StartProgram(eventData, channel, ec, cancellationToken);
}
}
}
catch (System.Exception ex)
{
TraceHelper.AMSTaskTraceSource.TraceEvent(TraceEventType.Error, 60020, ex.ToString());
}
}
/// <summary>
/// 停止需要停止的任务
/// </summary>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public static void StopEventsInTimeFrame(CancellationToken cancellationToken)
{
AMSEventCollection events = AMSEventSqlAdapter.Instance.LoadNeedStopEvents();
AMSQueueItemCollection messages = new AMSQueueItemCollection();
foreach (AMSEvent eventData in events)
{
if (cancellationToken.IsCancellationRequested)
{
break;
}
if (LockHelper.IsLockAvailable(eventData))
{
messages.Add(eventData.ToQueueMessage(AMSQueueItemType.StopEvent));
TraceHelper.AMSTaskTraceSource.TraceEvent(TraceEventType.Verbose, 60012, "Add stop new event {0} to queue.", eventData.ID);
}
}
GetQueue().AddMessages(string.Empty, messages.ToArray());
}
public static void StopEvent(AMSQueueItem message, CancellationToken cancellationToken)
{
AMSEvent eventData = null;
try
{
eventData = AMSEventSqlAdapter.Instance.LoadByID(message.ResourceID);
if (eventData != null)
{
if (eventData.State == AMSEventState.Running)
{
AMSEventSqlAdapter.Instance.UpdateState(eventData.ID, AMSEventState.Stopping);
}
AMSEventChannelCollection ecs = AMSEventSqlAdapter.Instance.LoadEventAndChannel(eventData.ID);
Task[] stopProgramTasks = new Task[ecs.Count];
for (int i = 0; i < stopProgramTasks.Length; i++)
{
AMSEventChannel ec = ecs[i];
stopProgramTasks[i] = Task.Factory.StartNew(() => StopOneProgram(eventData, ec, cancellationToken));
}
Task.WaitAll(stopProgramTasks.ToArray());
AMSEventSqlAdapter.Instance.UpdateCompletedStateByChannels(eventData.ID);
}
}
finally
{
if (eventData != null)
{
LockHelper.Unlock(eventData);
}
}
}
/// <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());
}
