protected virtual void PreRun()
{
try
{
if (!_isAlreadyPreRun)
{
if (stateMachine == null)
{
stateMachine = StateMachine;
}
_timeoutHandle.Reset();
waitHandle = stateMachine.WaitHandle;
decisionWaitHandle = stateMachine.DecisionWaitHandle;
decisionLoopList = stateMachine.DecisionLoopList;
pathOut = null;
flowItemForPathOut = null;
_decisionTimeout = -1;
ExitFlowItem();
FindStart();
EnterFlowItem();
_isAlreadyPreRun = true;
}
}
catch
{
_isAlreadyPreRun = false;
}
}
/// <summary>
/// Clone this component
/// </summary>
/// <param name="name"></param>
/// <param name="bRecursivley"></param>
/// <returns></returns>
public override CompBase Clone(string name, bool bRecursivley)
{
SMFlowBase newComp = base.Clone(name, bRecursivley) as SMFlowBase;
_shallowCopyTo(newComp);
return(newComp);
}
/// <summary>
/// Get the flow item for the target in the specified pathOut
/// </summary>
/// <param name="pathOut"></param>
/// <returns></returns>
public SMFlowBase GetFlowTarget(SMPathOut pathOut)
{
if (pathOut.HasTargetID)
{
SMFlowBase[] list = null;
if (!pathOut.TargetID.Contains("."))
{
//list = FilterByType<SMFlowBase>();
list = pathOut.Owner.Parent.FilterByType <SMFlowBase>();
}
//Sport Transition
else
{
SMFlowBase smPathOut = U.GetComponent(pathOut.TargetID) as SMFlowBase;
return(smPathOut);
}
if (list.Length > 0)
{
try
{
return(list.First(c => c.Name == pathOut.TargetID));
}
catch
{
pathOut.DeletedTarget();
}
}
}
return(null);
}
private void FindStart()
{
_currentFlowItem = ChildArray.ToList().Find(c => c is SMStart) as SMFlowBase;
if (_currentFlowItem == null)
{
throw new Exception("Unable to find the Start Flow chart element");
}
}
/// <summary>
/// Find the target at the specified endpoint
/// </summary>
/// <param name="searcher"></param>
/// <param name="endGridPt"></param>
/// <returns></returns>
public SMFlowBase FindTarget(SMFlowBase searcher, PointF endGridPt)
{
foreach (SMFlowBase flowItem in ChildArray)
{
if (!object.ReferenceEquals(searcher, flowItem) && flowItem.Contains(endGridPt))
{
return(flowItem);
}
}
return(null);
}
private bool FindStop()
{
SMFlowBase exitFlowItem = ChildArray.ToList().Find(c => c is SMReturnStop) as SMFlowBase;
if (exitFlowItem != null)
{
_currentFlowItem = exitFlowItem;
return(true);
}
return(false);
}
private void _shallowCopyTo(CompBase compTo)
{
SMFlowBase flowTo = compTo as SMFlowBase;
flowTo.Text = Text;
flowTo.GridLoc = GridLoc;
for (int i = 0; i < 4; i++)
{
flowTo._pathList[i] = _pathList[i].Clone() as SMPathOut;
}
}
/// <summary>
/// Evaluate specific path for target
/// </summary>
/// <param name="pathOut"></param>
public void DetermineTarget(SMPathOut pathOut)
{
if (!(pathOut is SMPathOutPlug))
{
// Allow us to loop back to self only if there is more than one segment
SMFlowBase searcher = pathOut.Next != null ? this : null;
SMFlowBase flowItem = ParentContainer.FindTarget(searcher, FindEndPoint(pathOut));
if (flowItem != null)
{
pathOut.TargetID = flowItem.Name;
}
else
{
pathOut.TargetID = string.Empty;
}
}
}
/// <summary>
/// Run method for the main state machine thread
/// </summary>
/// <returns></returns>
public override SMPathOut Run()
{
//SMStateMachine stateMachine = StateMachine;
try
{
//_timeoutHandle.Reset();
//ManualResetEvent waitHandle = stateMachine.WaitHandle;
//ManualResetEvent decisionWaitHandle = stateMachine.DecisionWaitHandle;
//List<SMDecision> decisionLoopList = stateMachine.DecisionLoopList;
//SMPathOut pathOut = null;
//SMFlowBase flowItemForPathOut = null;
//_decisionTimeout = -1;
//ExitFlowItem();
//FindStart();
//// Hightlight start
//EnterFlowItem();
PreRun();
while (true)
{
Thread.Sleep(0);
// If Reset will block thread (Pause) until Step or Run (Set)
if (stateMachine.Mode == SMStateMachine.eMode.Pause)
{
waitHandle.Reset();
// Wait until(Pause) until Step or Run (Set)
EnterFlowItem();
waitHandle.WaitOne();
ExitFlowItem();
}
if (_currentFlowItem is SMDecision)
{
SMDecision decisionItem = _currentFlowItem as SMDecision;
if (decisionLoopList.Contains(decisionItem))
{
// We have closed the loop of nothing but decision items
EnterFlowItem();
//stateMachine.EnterPathItem(flowItemForPathOut, flowItemForPathOut.OutgoingPath);
// Modify by Kasem 12-Feb-2018
if (decisionItem.WaitTimeoutMS <= 0)
{
decisionWaitHandle.WaitOne(_decisionTimeout);
}
else
{
Boolean signal = false;
signal = decisionWaitHandle.WaitOne(decisionItem.WaitTimeoutMS);
//Trigger Timeout
if (!signal)
{
_timeoutHandle.Set();
}
}
//--------------------------------
_decisionTimeout = -1;
//stateMachine.ExitPathItem(flowItemForPathOut, flowItemForPathOut.OutgoingPath);
ExitFlowItem();
stateMachine.ClearDecisionList();
}
else
{
if (decisionLoopList.Count == 0)
{
// First one. Reset early in case something changes quickly
decisionWaitHandle.Reset();
}
decisionItem.AddNotifier(StateMachine.OnDecisionChanged);
stateMachine.AddToDecisionList(decisionItem, flowItemForPathOut, pathOut);
}
}
else
{
stateMachine.ClearDecisionList();
}
//
// Run this item
//
//Dump Process Usage Timing
if (CompMachine.s_machine.ProcessUsageTrigger)
{
if (!(_currentFlowItem is SMFlowContainer))
{
StateMachine.AddTimingElement(">Run: " + _currentFlowItem.Text);
}
else
{
StateMachine.AddTimingElement(">Enter: " + _currentFlowItem.Text);
}
}
EnterFlowItem();
pathOut = _currentFlowItem.Run();
ExitFlowItem();
//Dump Process Usage Timing
if (CompMachine.s_machine.ProcessUsageTrigger)
{
if (!(_currentFlowItem is SMFlowContainer))
{
StateMachine.AddTimingElement("<Run: " + _currentFlowItem.Text);
}
else
{
StateMachine.AddTimingElement("<Exit: " + _currentFlowItem.Text);
}
}
//Add by Kasem 12-Feb-2018
if (_currentFlowItem is SMDecision)
{
//Determine Start to Capture Timeout
SMDecision decisionItem = _currentFlowItem as SMDecision;
//No Partout Meaning Waiting Condition
if (pathOut != null && !pathOut.HasTargetID && decisionItem.WaitTimeoutMS > 0)
{
//Start Stop watch if Nested Condition
if (!_stopWatch.IsRunning && _currentFlowItem.HasChildren)
{
_stopWatch.Restart();
}
else if (_stopWatch.IsRunning && !_currentFlowItem.HasChildren)
{
_stopWatch.Stop();
}
else
{
if ((_currentFlowItem.HasChildren) && (_stopWatch.ElapsedMilliseconds > decisionItem.WaitTimeoutMS) ||
(!_currentFlowItem.HasChildren) && _timeoutHandle.WaitOne(0))
{
//Check Stop Path and Flow to Timeout Flag
SMPathOut stopPath = _currentFlowItem[typeof(SMPathOutStop)];
//Popup in case no path for Timeout
if (!decisionItem.FlowTimeoutToStopPath ||
stopPath == null || !stopPath.HasTargetID)
{
U.LogWarning("Decision Wait Time Out [{0}] on state [{1}]", decisionItem.PathText, this.StateMachine);
string msg = String.Format("Decision Wait Time Out [{0}] on state [{1}]", decisionItem.PathText, this.StateMachine);
_stopWatch.Stop();
_timeoutHandle.Reset();
DisplayAsynchMsg(msg);
_timeoutHandle.WaitOne();
_timeoutHandle.Reset();
}
//Case Timeout path available
else
{
_stopWatch.Stop();
_timeoutHandle.Reset();
pathOut = stopPath;
}
}
}
}
//Force pathout to null incase of pathout is stop path but we use FlowTimeoutToStopPath option
else if (pathOut is SMPathOutStop && decisionItem.FlowTimeoutToStopPath)
{
pathOut = null;
_stopWatch.Stop();
}
//Stop capture time in case decision meet wait condition
else
{
_stopWatch.Stop();
}
}
//Modify by Kasem 13-Feb-2018
if (stateMachine.ReceivedStop)
{
if (!(_currentFlowItem is SMDecision) && !(_currentFlowItem is SMTransition) && !(_currentFlowItem is SMActTransFlow))
{
stateMachine.ReceivedStop = false;
// Redirect the path to the PathOutStop
pathOut = _currentFlowItem[typeof(SMPathOutStop)];
}
else
{
stateMachine.ReceivedStop = false;
_stopWatch.Stop();
if (_currentFlowItem is SMDecision)
{
if (!(_currentFlowItem as SMDecision).FlowTimeoutToStopPath)
{
pathOut = _currentFlowItem[typeof(SMPathOutStop)];
}
else
{
pathOut = null;
}
}
else if (_currentFlowItem is SMTransition)
{
if (!(_currentFlowItem as SMTransition).FlowTimeoutToStopPath)
{
pathOut = _currentFlowItem[typeof(SMPathOutStop)];
}
else
{
pathOut = null;
}
}
else if (_currentFlowItem is SMActTransFlow)
{
if (!(_currentFlowItem as SMActTransFlow).FlowTimeoutToStopPath)
{
pathOut = _currentFlowItem[typeof(SMPathOutStop)];
}
else
{
pathOut = null;
}
}
}
}
//--------------------------------
if (pathOut == null)
{
// Will stop the whole State Machine
return(null);
}
SMPathOutError pathOutError = pathOut as SMPathOutError;
if (pathOutError != null)
{
pathOutError.ProcessErrors();
}
if (pathOut.HasTargetID)
{
flowItemForPathOut = _currentFlowItem;
// We are on the target path.
_currentFlowItem = GetFlowTarget(pathOut);
_currentFlowItem.IncomingPath = pathOut;
}
else if ((_currentFlowItem is SMDecision) && !(pathOut is SMPathOutStop) && !(pathOut is SMPathOutError))
{
// Keep same current flow item. Let it loop to itself
}
else
{
// No target to go to
// Will stop the whole State Machine
if ((pathOut is SMPathOutStop) || (pathOut is SMPathOutError))
{
if (!FindStop())
{
FindStart();
}
EnterFlowItem();
}
_currentFlowItem.IncomingPath = null;
return(null);
}
if (_currentFlowItem == null)
{
throw new Exception(string.Format("Could not locate Flowitem from ID '{0}' in StateMachine '{1}'. State Machine has paused.",
pathOut.TargetID, Text));
}
if (_currentFlowItem is SMExit)
{
EnterFlowItem();
if (this is SMDecision)
{
foreach (SMPathOut path in PathArray)
{
if (_currentFlowItem is SMReturnNo)
{
if (path is SMPathOutBool && !(path as SMPathOutBool).True)
{
return(path);
}
}
else if (_currentFlowItem is SMReturnYes)
{
if (path is SMPathOutBool && (path as SMPathOutBool).True)
{
return(path);
}
}
else if (_currentFlowItem is SMReturnStop)
{
if (path is SMPathOutStop)
{
return(path);
}
}
}
}
if (this is SMSubroutine && _currentFlowItem is SMReturnStop)
{
return(this[typeof(SMPathOutStop)]);
}
return(this[typeof(SMPathOut)]);
}
}//End While True;
}
finally
{
stateMachine.ClearDecisionList();
_isAlreadyPreRun = false;
System.Threading.Tasks.Task.Run(() => PreRun());
}
}
/// <summary>
/// Add Flow Item
/// </summary>
/// <param name="flowItemAdded"></param>
public void AddFlowItem(SMFlowBase flowItemAdded)
{
Add(flowItemAdded);
flowItemAdded.Initialize();
}