public void AddFlow(FlowDef t)
{
if (string.IsNullOrEmpty(t.From) || string.IsNullOrEmpty(t.To))
{
throw new Exception("Flow must have start and target node");
}
NodeDef p = GetNode(t.From);
if (p == null)
{
throw new Exception("Node not defined: " + t.From);
}
NodeDef q = GetNode(t.To);
if (q == null)
{
throw new Exception("Node not defined: " + t.To);
}
t.Parent = this;
if (t.IsCancelling || t.SourcePortType != TaskOutPortType.Out)
{
if (t.InputCondition != null && t.InputCondition.Length > 0)
{
throw new NGinnBPM.ProcessModel.Exceptions.ProcessDefinitionException(this.ParentProcess.DefinitionId, t.From, "InputCondition not allowed");
}
}
if (p is PlaceDef && q is PlaceDef)
{
throw new Exception("Flow cannot connect two places");
}
if (p is TaskDef && q is TaskDef)
{
//adding implicit place between p and q
TaskDef tq = q as TaskDef;
TaskDef tp = p as TaskDef;
PlaceDef ptran = new PlaceDef {
Id = string.Format("{0}.-.{1}", tp.Id, tq.Id),
PlaceType = PlaceTypes.Intermediate,
Implicit = true
};
AddPlace(ptran);
t.To = ptran.Id;
FlowDef f2 = new FlowDef();
f2.From = ptran.Id;
f2.To = tq.Id;
AddFlow(t);
AddFlow(f2);
}
else
{
Flows.Add(t);
}
}
public void AddFlow(FlowDef t)
{
if (string.IsNullOrEmpty(t.From) || string.IsNullOrEmpty(t.To)) throw new Exception("Flow must have start and target node");
NodeDef p = GetNode(t.From);
if (p == null) throw new Exception("Node not defined: " + t.From);
NodeDef q = GetNode(t.To);
if (q == null) throw new Exception("Node not defined: " + t.To);
t.Parent = this;
if (t.IsCancelling || t.SourcePortType != TaskOutPortType.Out)
{
if (t.InputCondition != null && t.InputCondition.Length > 0)
throw new NGinnBPM.ProcessModel.Exceptions.ProcessDefinitionException(this.ParentProcess.DefinitionId, t.From, "InputCondition not allowed");
}
if (p is PlaceDef && q is PlaceDef) throw new Exception("Flow cannot connect two places");
if (p is TaskDef && q is TaskDef)
{
//adding implicit place between p and q
TaskDef tq = q as TaskDef;
TaskDef tp = p as TaskDef;
PlaceDef ptran = new PlaceDef {Id = string.Format("{0}.-.{1}", tp.Id, tq.Id),
PlaceType = PlaceTypes.Intermediate,
Implicit = true
};
AddPlace(ptran);
t.To = ptran.Id;
FlowDef f2 = new FlowDef();
f2.From = ptran.Id;
f2.To = tq.Id;
AddFlow(t);
AddFlow(f2);
}
else
{
Flows.Add(t);
}
}
private void ExecuteFlow(string instanceId, FlowDef fl)
{
TransitionInfo ti = GetTransitionInfo(instanceId);
if (ti.TaskId != fl.From) throw new Exception();
if (fl.IsCancelling)
{
RemoveAllTokensInPlace(fl.To);
}
else
{
AddToken(fl.To);
}
}
/// <summary>
/// Evaluate input condition for a flow
/// </summary>
/// <param name="fl"></param>
/// <returns></returns>
protected bool EvaluateFlowInputCondition(FlowDef fl)
{
return this.ScriptRuntime.EvalFlowCondition(this, fl, Context);
}
