/// <summary>节点实例监听器</summary>
public void onEdgeInstanceEventFired(EdgeInstanceEvent e)
{
if (e.EventType == EdgeInstanceEventEnum.ON_TAKING_THE_TOKEN)
{
IToken token = e.Token;
// 计算token的alive值
ILoopInstance transInst = (ILoopInstance)e.getSource();
String condition = transInst.Loop.Condition;
calculateTheAliveValue(token, condition);
if (this.RuntimeContext.IsEnableTrace && token.IsAlive)
{
ProcessInstanceTrace trace = new ProcessInstanceTrace();
trace.ProcessInstanceId = e.Token.ProcessInstanceId;
trace.StepNumber = e.Token.StepNumber + 1;
trace.Type = ProcessInstanceTraceEnum.LOOP_TYPE;
trace.FromNodeId = transInst.Loop.FromNode.Id;
trace.ToNodeId = transInst.Loop.ToNode.Id;
trace.EdgeId = transInst.Loop.Id;
//TODO wmj2003 一旦token从当前边上经过，那么就保存流程运行轨迹,这里应该是insert
RuntimeContext.PersistenceService.SaveOrUpdateProcessInstanceTrace(trace);
}
}
}
public override void fire(IToken tk)
{
IJoinPoint joinPoint = synchronized(tk);
if (joinPoint == null)
{
return;
}
IProcessInstance processInstance = tk.ProcessInstance;
NodeInstanceEvent event2 = new NodeInstanceEvent(this);
event2.Token = tk;
event2.EventType = NodeInstanceEventEnum.NODEINSTANCE_FIRED;
this.fireNodeEvent(event2);
//在此事件监听器中，删除原有的token
NodeInstanceEvent event4 = new NodeInstanceEvent(this);
event4.Token = tk;
event4.EventType = NodeInstanceEventEnum.NODEINSTANCE_LEAVING;
this.fireNodeEvent(event4);
//首先必须检查是否有满足条件的循环
Boolean doLoop = false;//表示是否有满足条件的循环，false表示没有，true表示有。
if (joinPoint.Alive)
{
IToken tokenForLoop = null;
tokenForLoop = new Token(); // 产生新的token
tokenForLoop.IsAlive = joinPoint.Alive;
tokenForLoop.ProcessInstance = processInstance;
tokenForLoop.StepNumber = joinPoint.StepNumber - 1;
tokenForLoop.FromActivityId = joinPoint.FromActivityId;
for (int i = 0; i < this.LeavingLoopInstances.Count; i++)
{
ILoopInstance loopInstance = this.LeavingLoopInstances[i];
doLoop = loopInstance.take(tokenForLoop);
if (doLoop)
{
break;
}
}
}
if (!doLoop)
{
NodeInstanceEvent event3 = new NodeInstanceEvent(this);
event3.Token = tk;
event3.EventType = NodeInstanceEventEnum.NODEINSTANCE_COMPLETED;
this.fireNodeEvent(event3);
}
// NodeInstanceEvent event4 = new NodeInstanceEvent(this);
// event4.setToken(tk);
// event4.setEventType(NodeInstanceEvent.NODEINSTANCE_LEAVING);
// this.fireNodeEvent(event4);
}
public override void fire(IToken tk)
{
//TODO 此处性能需要改善一下,20090312
IJoinPoint joinPoint = synchronized(tk);
if (joinPoint == null)
{
return;
}
//如果汇聚点的容量和同步器节点的容量相同
IProcessInstance processInstance = tk.ProcessInstance;
// Synchronize的fire条件应该只与joinPoint的value有关（value==volume），与alive无关
NodeInstanceEvent event2 = new NodeInstanceEvent(this);
event2.Token = tk;
event2.EventType = NodeInstanceEventEnum.NODEINSTANCE_FIRED;
this.fireNodeEvent(event2);
//在此事件监听器中，删除原有的token
NodeInstanceEvent event4 = new NodeInstanceEvent(this);
event4.Token = tk;
event4.EventType = NodeInstanceEventEnum.NODEINSTANCE_LEAVING;
this.fireNodeEvent(event4);
//首先必须检查是否有满足条件的循环，loop比transition有更高的优先级，
//（只能够有一个loop的条件为true，流程定义的时候需要注意）
Boolean doLoop = false;//表示是否有满足条件的循环，false表示没有，true表示有。
if (joinPoint.Alive)
{
IToken tokenForLoop = null;
tokenForLoop = new Token(); // 产生新的token
tokenForLoop.IsAlive = joinPoint.Alive;
tokenForLoop.ProcessInstance = processInstance;
tokenForLoop.StepNumber = joinPoint.StepNumber - 1;
tokenForLoop.FromActivityId = joinPoint.FromActivityId;
for (int i = 0; i < this.LeavingLoopInstances.Count; i++)
{
ILoopInstance loopInstance = this.LeavingLoopInstances[i];
doLoop = loopInstance.take(tokenForLoop);
if (doLoop)
{
break;
}
}
}
if (!doLoop)
{//如果没有循环，则执行transitionInstance
//非顺序流转的需要生成新的token，
Boolean activiateDefaultCondition = true;
ITransitionInstance defaultTransInst = null;
for (int i = 0; LeavingTransitionInstances != null && i < LeavingTransitionInstances.Count; i++)
{
ITransitionInstance transInst = LeavingTransitionInstances[i];
String condition = transInst.Transition.Condition;
if (condition != null && condition.Equals(ConditionConstant.DEFAULT))
{
defaultTransInst = transInst;
continue;
}
Token token = new Token(); // 产生新的token
token.IsAlive = joinPoint.Alive;
token.ProcessInstance = processInstance;
token.StepNumber = joinPoint.StepNumber;
token.FromActivityId = joinPoint.FromActivityId;
Boolean alive = transInst.take(token);
if (alive)
{
activiateDefaultCondition = false;
}
}
if (defaultTransInst != null)
{
Token token = new Token();
token.IsAlive = activiateDefaultCondition && joinPoint.Alive;
token.ProcessInstance = processInstance;
token.StepNumber = joinPoint.StepNumber;
token.FromActivityId = joinPoint.FromActivityId;
defaultTransInst.take(token);
}
}
NodeInstanceEvent event3 = new NodeInstanceEvent(this);
event3.Token = tk;
event3.EventType = NodeInstanceEventEnum.NODEINSTANCE_COMPLETED;
this.fireNodeEvent(event3);
}
public virtual void AddEnteringLoopInstance(ILoopInstance loopInstance)
{
this.EnteringLoopInstances.Add(loopInstance);
}
public virtual void AddLeavingLoopInstance(ILoopInstance loopInstance)
{
LeavingLoopInstances.Add(loopInstance);
}
public virtual void AddEnteringLoopInstance(ILoopInstance loopInstance)
{
this.EnteringLoopInstances.Add(loopInstance);
}
public virtual void AddLeavingLoopInstance(ILoopInstance loopInstance)
{
LeavingLoopInstances.Add(loopInstance);
}