//进入节点
public void enter(TransitionInstance transitionInstance,Token token)
{
//当工作项实体已完成并且结点为join且逻辑为or时，不再启动
if (!(_task.NodeType == NodeType.Join
&& _task.LogicType == LogicType.OR
&& _model.TaskState == TaskState.Complete.ToString()))
this.start();
//更新线实例的到达工作项实例id
transitionInstance.setToTaskInstanceId(_model.Id).save();
//设置令牌的工作项实例
token.setTaskInstance(this).save();
this.enterNode();
execute(token);
//Token token = executionContext.getToken();
//token.setNode(this);
//// remove the transition references from the runtime context
//executionContext.setTransition(null);
//executionContext.setTransitionSource(null);
//// execute the node
//if (isAsync)
//{
//}
//else
//{
// execute(executionContext);
//}
}
//运行弧线
public void take(Token token)
{
this.start();
var toTask = _transition.To;
var processInstance = _fromTaskInstance.getProcessInstance();
var toTaskInstance = toTask.loadOrCreateTaskInstance(processInstance);
_model.IsExcuted = true;
this.end().save();
toTaskInstance.enter(this, token);
//TaskInstance toTaskInstance = null;
//var bpmContext = processInstance.getBpmContext();
//var processInstance = _fromTaskInstance.getProcessInstance();
//var processInstanceId = processInstance.getProcessInstanceModel().Id;
//toTask.createTaskInstance();
//if (toTask.NodeType == NodeType.Join)
// var toTaskInstance = bpmContext.loadTaskInstance(processInstanceId, toTask.Name, TaskState.Run);
//if (toTaskInstance == null)
// toTaskInstance = TaskInstance.create(processInstance,toTask);
//TaskInstance toTaskInst = getNextTaskInstance(processInstance, _transition.To);
//_isExecuted = true;
//processInstance.GetContextInstance().save(this);
//End();
//toTaskInst.Enter(token, this);
//executionContext.getToken().setNode(null);
//// pass the token to the destinationNode node
//to.enter(executionContext);
}
public Token setPackage(Token packageToken)
{
_model.PackageId = packageToken.getTokenModel().Id;
return this;
}
public Token setParent(Token parentToken)
{
_model.ParentId = parentToken.getTokenModel().Id;
return this;
}
//离开节点
public TaskInstance leave(TransitionInstance transitionInstance, Token token)
{
this.end().save();
transitionInstance.take(token);
return this;
}
//执行节点
public void execute(Token token)
{
var transitions = _task.LeavingTransitions;
var bpmContext = _processInstance.getBpmContext();
switch (_task.NodeType)
{
case NodeType.Start:
break;
case NodeType.Task:
//IsReturnParent(token.GetTaskInstance());
break;
case NodeType.Fork:
token.activate(false);
var childs = new Dictionary<TransitionInstance,Token>();
foreach (Transition transition in transitions)
{
var transitionsInstance = transition.createTransitionInstance(this);
childs.Add(transitionsInstance, this.createToken().setParent(token).activate(true).save());
}
foreach (var child in childs)
this.leave(child.Key, child.Value);
token.save();
break;
case NodeType.Join://属于自动结点，外部不需要调用signal
var dataPackageToken = bpmContext.loadDataTokenActiveByTaskInstanceId(_model.Id);
var packageToken = loadToken(dataPackageToken).activate(true); //创建或加载并激活package令牌
if (_model.TaskState == TaskState.Complete.ToString())//如果流程已往下走，还有线未到达的情况
{
token.setTaskInstance(this).setPackage(packageToken).end().save();
return;
}
token.activate(false).setTaskInstance(this).setPackage(packageToken).save(); //设置当前token未激活
//处理聚合关系
var packageId = packageToken.getTokenModel().Id;
var dataJoinParentTokens = bpmContext.loadDataJoinParentTokensByPackageId(packageId);
while (dataJoinParentTokens.Count() > 0)
{
foreach (var item in dataJoinParentTokens)
{
var parent = this.loadToken(item).setTaskInstance(this).setPackage(packageToken).save();
bpmContext.updateTokenStateByParentId(parent.getTokenModel().Id, TokenState.Ended);
}
dataJoinParentTokens = bpmContext.loadDataJoinParentTokensByPackageId(packageId);
}
//根据逻辑关系判断是否往下流转还是等待
switch (_task.LogicType)
{
case LogicType.AND:
//所有的线都已到达
var arrivedTransitionIds = bpmContext.loadDataArrivedTransitionInstance(_model.Id).Select(x => x.TransitionId);
var arrivingTransitionIds = _task.ArrivingTransitions.OfType<Transition>().Select(x => x.GetId());
if (arrivingTransitionIds.Except(arrivedTransitionIds).Count() == 0)
{
packageToken.signal();
}
break;
case LogicType.OR:
packageToken.signal();
break;
case LogicType.XOR:
// to do
break;
case LogicType.DISC:
// to do
break;
}
break;
//case NodeType.Wait:
// break;
//case NodeType.End:
// token.GetTaskInstance().End();
// token.End();
// _processInstance.End();
// bpmContext.save(token.GetTaskInstance());
// bpmContext.save(token);
// bpmContext.save(_processInstance);
// IsReturnParent(token.GetTaskInstance());
// break;
//case NodeType.Decision:
// token.Signal();
// break;
//case NodeType.Auto:
// token.Signal();
// break;
//case NodeType.SubFlow:
// if (this.GetTask().IsAutoStart)
// {
// ProcessInstance piStart = bpmContext.newProcessInstance(this.GetTask().SubFlowName, _processInstance.GetId()); //新增流程实例
// piStart.Start();
// bpmContext.save(piStart);
// }
// break;
default:
break;
}
}
public int save(Token token)
{
var model = token.getTokenModel();
var result = save<wf_token>(model);
return result;
}
