protected override void OnExecute(SysTask task)
{
ExecuteSysTaskActivityTask activityTask = new ExecuteSysTaskActivityTask(task);
SysTaskProcess process = SysTaskProcessRuntime.GetProcessByActivityID(activityTask.ActivityID);
process.CurrentActivity.ExecuteTask();
using (TransactionScope scope = TransactionScopeFactory.Create())
{
SysTaskProcessRuntime.Persist();
//没有异常，则继续流转
if (process.Status == SysTaskProcessStatus.Running)
{
process = SysTaskProcessRuntime.GetProcessByActivityID(activityTask.ActivityID);
AutoMoveToNextActivity(process.CurrentActivity);
if (process.OwnerActivity != null)
{
AutoMoveToNextActivity(process.OwnerActivity);
}
}
scope.Complete();
}
if (process.Status == SysTaskProcessStatus.Aborted)
{
throw new ApplicationException(process.CurrentActivity.StatusText);
}
}
/// <summary>
/// 如果能够流转，自动流转到下一个活动
/// </summary>
/// <param name="activity"></param>
private static void AutoMoveToNextActivity(SysTaskActivity activity)
{
if (activity.CanMoveTo())
{
SysTaskActivity nextActivity = activity.Process.MoveToNextActivity();
SysTaskProcessRuntime.Persist();
if (activity.Process.Status == SysTaskProcessStatus.Running)
{
ExecuteSysTaskActivityTask.SendTask(nextActivity);
}
}
else
{
//对于第一个活动就带子流程的场景，其状态是NotRunning且有可能被阻塞不能流转，需要通过此操作启动子流程的Task
if (activity.Status == SysTaskActivityStatus.NotRunning)
{
SysTaskProcess.EnterActivity(activity, SNTPClient.AdjustedTime);
}
}
}