public virtual void Execute(BpmnStackTrace stackTrace)
{
if ((operation != PvmAtomicOperationFields.ActivityStartCancelScope) &&
(operation != PvmAtomicOperationFields.ActivityStartInterruptScope) &&
(operation != PvmAtomicOperationFields.ActivityStartConcurrent))
{
// execution might be replaced in the meantime:
ExecutionEntity replacedBy = (ExecutionEntity)execution.ReplacedBy;
if (replacedBy != null)
{
execution = replacedBy;
}
}
//execution was canceled for example via terminate end event
if (execution.Canceled &&
(operation == PvmAtomicOperationFields.TransitionNotifyListenerEnd ||
operation == PvmAtomicOperationFields.ActivityNotifyListenerEnd))
{
return;
}
//// execution might have ended in the meanwhile
if (execution.IsEnded &&
(operation == PvmAtomicOperationFields.TransitionNotifyListenerTake ||
operation == PvmAtomicOperationFields.ActivityStartCreateScope))
{
return;
}
//TODO Context.CurrentProcessApplication
var currentPa = context.Impl.Context.CurrentProcessApplication;
if (currentPa != null)
{
applicationContextName = currentPa.Name;
}
activityId = execution.ActivityId;
stackTrace.Add(this);
try
{
Context.SetExecutionContext(execution);
if (!performAsync)//同步
{
Log.DebugExecutingAtomicOperation(operation, execution);
operation.Execute(execution);
}
else//异步
{
execution.ScheduleAtomicOperationAsync(this);
}
}
catch (ClassMethodDelegateException ex)
{
if (execution.IsInTransaction)
{
System.Transactions.Transaction tr = Context.CommandContext.CurrentTransaction;
Log.LogDebug("外部代码异常，事务Id:", tr.TransactionInformation.LocalIdentifier);
if (context.Impl.Context.CommandContext.CurrentTransaction != null)
{
Log.LogDebug("移除当前外部事务，添加到待回滚中。", context.Impl.Context.CommandContext.CurrentTransaction.TransactionInformation.LocalIdentifier);
context.Impl.Context.CommandContext.MoveToRollBack();
}
}
else
{
Log.LogDebug("外部代码不在事务范围内,ActivityId:" + execution.ActivityId, ex.Message);
}
}
//debug抛异常
catch (System.Exception e)
{
throw e;
}
finally
{
context.Impl.Context.RemoveExecutionContext();
}
}