protected internal virtual bool IsSymptomOfContextSwitchFailure(System.Exception t, ExecutionEntity contextExecution)
{
//throw new NotImplementedException();
// a context switch failure can occur, if the current engine has no PA registration for the deployment
// subclasses may assert the actual throwable to narrow down the diagnose
return(ProcessApplicationContextUtil.GetTargetProcessApplication(contextExecution) == null);
}
public virtual object ResolveDelegateClass(IActivityExecution execution)
{
IProcessApplicationReference targetProcessApplication = ProcessApplicationContextUtil.GetTargetProcessApplication((ExecutionEntity)execution);
if (ProcessApplicationContextUtil.RequiresContextSwitch(targetProcessApplication))
{
return(Context.ExecuteWithinProcessApplication(
() => ResolveDelegateClass(execution), targetProcessApplication,
new InvocationContext(execution)));
}
else
{
return(InstantiateDelegateClass(execution));
}
}
protected internal virtual IProcessApplicationReference GetContextProcessApplication()
{
if (TaskId != null)
{
return(ProcessApplicationContextUtil.GetTargetProcessApplication(GetTask()));
}
if (ExecutionId != null)
{
return(null);
}
if (CaseExecutionId != null)
{
return(null);
}
return(null);
}
// Signallable activity behavior
public override void Signal(IActivityExecution execution, string signalName, object signalData)
{
var targetProcessApplication =
ProcessApplicationContextUtil.GetTargetProcessApplication((ExecutionEntity)execution);
if (ProcessApplicationContextUtil.RequiresContextSwitch(targetProcessApplication))
{
Context.ExecuteWithinProcessApplication <object>(() =>
{
Signal(execution, signalName, signalData);
return(null);
}, targetProcessApplication,
new InvocationContext(execution));
}
else
{
DoSignal(execution, signalName, signalData);
}
}