internal override void ExecuteInstanceImp(ISession session)
{
//修改流程实例为返签状态
var pim = new ProcessInstanceManager();
pim.Reverse(base.BackwardContext.ProcessInstance.ProcessInstanceGUID, base.ActivityResource.LogonUser, session);
//创建新任务节点
var workItem = (WorkItem)WorkItemNodeFactory.CreateNewNode(base.BackwardContext.BackwardToTaskActivity);
workItem.CreateActivityTaskAndTransitionInstances(base.BackwardContext.ProcessInstance,
base.BackwardContext.FromActivityInstance,
base.BackwardContext.BackwardToTargetTransition,
TransitionTypeEnum.Backward,
base.ActivityResource,
session);
//构造回调函数需要的数据
base.WfExecutedResult = WfExecutedResult.Success();
}
internal override void ExecuteInstanceImp(ISession session)
{
//创建新任务节点
var workItem = (WorkItem)WorkItemNodeFactory.CreateNewNode(base.BackwardContext.BackwardToTaskActivity);
workItem.CreateActivityTaskAndTransitionInstances(base.BackwardContext.ProcessInstance,
base.BackwardContext.FromActivityInstance,
base.BackwardContext.BackwardToTargetTransition,
TransitionTypeEnum.Withdrawed,
base.ActivityResource,
session);
//更新当前办理节点的状态（从准备或运行状态更新为退回状态）
var aim = new ActivityInstanceManager();
aim.Reject(base.BackwardContext.FromActivityInstance.ActivityInstanceGUID, base.ActivityResource.LogonUser, session);
//构造回调函数需要的数据
base.WfExecutedResult = WfExecutedResult.Success();
}
/// <summary>
/// 递归执行节点
/// </summary>
/// <param name="root"></param>
/// <param name="fromNode"></param>
/// <param name="conditionKeyValuePair"></param>
protected void ContinueForwardCurrentNodeRecurisivly(NextActivityComponent root,
NodeBase fromNode,
IDictionary <string, string> conditionKeyValuePair)
{
foreach (NextActivityComponent c in root)
{
if (c.HasChildren)
{
//此节点类型为分支或合并节点类型：首先需要实例化当前节点(自动完成)
NodeBase gatewayNode = GatewayNodeFactory.CreateNewNode(c.Activity);
ICompleteAutomaticlly autoGatewayNode = (ICompleteAutomaticlly)gatewayNode;
GatewayExecutedResult gatewayResult = autoGatewayNode.CompleteAutomaticlly(WfExecutionContext.ProcessInstance,
c.Transition,
fromNode.ActivityInstance,
WfExecutionContext.ActivityResource,
Session);
if (gatewayResult.Status == GatewayExecutedStatus.Successed)
{
//遍历后续子节点
ContinueForwardCurrentNodeRecurisivly(c,
gatewayNode,
conditionKeyValuePair);
}
else
{
WfExecutedResult workItemExecutedResult = WfExecutedResult.Exception(
WfExecutedStatus.FallBehindOfXOrJoin,
"第一个满足条件的节点已经被成功执行，此后的节点被阻止在XOrJoin节点!");
}
}
else if (c.Activity.IsWorkItemNode)
{
//此节点类型为任务节点：根据fromActivityInstance的类型判断是否可以创建任务
if (fromNode.ActivityInstance.State == (short)NodeStateEnum.Completed)
{
//创建新任务节点
WorkItem workItem = (WorkItem)WorkItemNodeFactory.CreateNewNode(c.Activity);
workItem.CreateActivityTaskAndTransitionInstances(WfExecutionContext.ProcessInstance,
fromNode.ActivityInstance,
c.Transition,
c.Transition.DirectionType == TransitionDirectionTypeEnum.Loop ?
TransitionTypeEnum.Loop : TransitionTypeEnum.Forward, //根据Direction方向确定是否是自身循环
WfExecutionContext.ActivityResource,
Session);
//新任务加入队列
if (workItem.IsAutomanticWorkItem)
{
ToDoAutoWorkItemQueue.Enqueue(workItem);
}
}
else
{
//下一步的任务节点没有创建，需给出提示信息
if ((fromNode.Activity.GatewayDirectionType | GatewayDirectionEnum.AllJoinType)
== GatewayDirectionEnum.AllJoinType)
{
WfExecutedResult workItemExecutedResult = WfExecutedResult.Exception(
WfExecutedStatus.WaitingForOthersJoin,
"等待其它需要合并的分支!");
}
}
}
else if (c.Activity.NodeType == NodeTypeEnum.EndNode)
{
//此节点为完成结束节点，结束流程
NodeBase endNode = new EndNode(c.Activity);
ICompleteAutomaticlly autoEndNode = (ICompleteAutomaticlly)endNode;
autoEndNode.CompleteAutomaticlly(WfExecutionContext.ProcessInstance,
c.Transition,
fromNode.ActivityInstance,
WfExecutionContext.ActivityResource,
Session);
}
else
{
WfExecutedResult workItemExecutedResult = WfExecutedResult.XmlError(
string.Format("XML文件定义了未知的节点类型，执行失败，节点类型信息：{0}",
c.Activity.NodeType.ToString()));
}
}
}
