/// <summary>
/// OrJoin合并时的节点完成方法
/// 1. 如果有满足条件的OrJoin前驱转移，则会重新生成新的OrJoin节点实例
/// </summary>
/// <param name="processInstance"></param>
/// <param name="fromTransition"></param>
/// <param name="fromActivityInstance"></param>
/// <param name="activityResource"></param>
/// <param name="wfLinqDataContext"></param>
public GatewayExecutedResult CompleteAutomaticlly(ProcessInstanceEntity processInstance,
TransitionEntity fromTransition,
ActivityInstanceEntity fromActivityInstance,
ActivityResource activityResource,
ISession session)
{
var toActivityInstance = base.CreateActivityInstanceObject(processInstance, activityResource.LogonUser);
base.InsertActivityInstance(toActivityInstance,
session);
base.CompleteActivityInstance(toActivityInstance.ActivityInstanceGUID,
activityResource,
session);
SyncActivityInstanceObjectState(NodeStateEnum.Completed);
base.InsertTransitionInstance(processInstance,
fromTransition,
fromActivityInstance,
toActivityInstance,
TransitionTypeEnum.Forward,
activityResource.LogonUser,
session);
GatewayExecutedResult result = GatewayExecutedResult.CreateGatewayExecutedResult(GatewayExecutedStatus.Successed);
return(result);
}
/// <summary>
/// 自动完成结束节点
/// </summary>
/// <param name="processInstance"></param>
/// <param name="fromActivityInstance"></param>
/// <param name="activityResource"></param>
/// <param name="wfLinqDataContext"></param>
public GatewayExecutedResult CompleteAutomaticlly(ProcessInstanceEntity processInstance,
TransitionEntity fromToTransition,
ActivityInstanceEntity fromActivityInstance,
ActivityResource activityResource,
ISession session)
{
GatewayExecutedResult result = null;
var toActivityInstance = base.CreateActivityInstanceObject(processInstance, activityResource.LogonUser);
base.InsertActivityInstance(toActivityInstance,
session);
base.CompleteActivityInstance(toActivityInstance.ActivityInstanceGUID,
activityResource,
session);
//写节点转移实例数据
base.InsertTransitionInstance(processInstance,
fromToTransition,
fromActivityInstance,
toActivityInstance,
TransitionTypeEnum.Forward,
activityResource.LogonUser,
session);
//设置流程完成
ProcessInstanceManager pim = new ProcessInstanceManager();
pim.Complete(processInstance.ProcessInstanceGUID, activityResource.LogonUser, session);
return(result);
}
public GatewayExecutedResult CompleteAutomaticlly(ProcessInstanceEntity processInstance,
TransitionEntity fromTransition,
ActivityInstanceEntity fromActivityInstance,
ActivityResource activityResource,
ISession session)
{
GatewayExecutedResult result = GatewayExecutedResult.CreateGatewayExecutedResult(GatewayExecutedStatus.Unknown);
bool canRenewInstance = false;
//检查是否有运行中的合并节点实例
ActivityInstanceEntity joinNode = base.ActivityInstanceManager.GetActivityWithRunningState(
processInstance.ProcessInstanceGUID,
base.Activity.ActivityGUID,
session);
if (joinNode == null)
{
canRenewInstance = true;
}
else
{
//判断是否可以激活下一步节点
canRenewInstance = (joinNode.CanRenewInstance == 1);
if (!canRenewInstance)
{
result = GatewayExecutedResult.CreateGatewayExecutedResult(GatewayExecutedStatus.FallBehindOfXOrJoin);
return(result);
}
}
if (canRenewInstance)
{
var toActivityInstance = base.CreateActivityInstanceObject(processInstance, activityResource.LogonUser);
base.InsertActivityInstance(toActivityInstance,
session);
base.CompleteActivityInstance(toActivityInstance.ActivityInstanceGUID,
activityResource,
session);
base.SyncActivityInstanceObjectState(NodeStateEnum.Completed);
//写节点转移实例数据
base.InsertTransitionInstance(processInstance,
fromTransition,
fromActivityInstance,
toActivityInstance,
TransitionTypeEnum.Forward,
activityResource.LogonUser,
session);
result = GatewayExecutedResult.CreateGatewayExecutedResult(GatewayExecutedStatus.Successed);
}
return(result);
}
public GatewayExecutedResult CompleteAutomaticlly(ProcessInstanceEntity processInstance,
TransitionEntity fromTransition,
ActivityInstanceEntity fromActivityInstance,
ActivityResource activityResource,
ISession session)
{
//检查是否有运行中的合并节点实例
ActivityInstanceEntity joinNode = base.ActivityInstanceManager.GetActivityWithRunningState(processInstance.ProcessInstanceGUID,
base.Activity.ActivityGUID,
session);
if (joinNode == null)
{
var aiEntity = base.CreateActivityInstanceObject(processInstance, activityResource.LogonUser);
base.InsertActivityInstance(aiEntity,
session);
}
else
{
//更新节点的活动实例属性
base.ActivityInstance = joinNode;
int tokensRequired = base.ActivityInstance.TokensRequired;
int tokensHad = base.ActivityInstance.TokensHad;
//更新Token数目
base.ActivityInstanceManager.IncreaseTokensHad(base.ActivityInstance.ActivityInstanceGUID,
activityResource.LogonUser,
session);
if ((tokensHad + 1) == tokensRequired)
{
//如果达到完成节点的Token数，则设置该节点状态为完成
base.CompleteActivityInstance(base.ActivityInstance.ActivityInstanceGUID,
activityResource,
session);
SyncActivityInstanceObjectState(NodeStateEnum.Completed);
}
}
GatewayExecutedResult result = GatewayExecutedResult.CreateGatewayExecutedResult(GatewayExecutedStatus.Successed);
return(result);
}
internal static GatewayExecutedResult CreateGatewayExecutedResult(GatewayExecutedStatus status)
{
GatewayExecutedResult result = new GatewayExecutedResult(GatewayExecutedStatus.Unknown, "Gateway节点的执行状态未知！");
switch (status)
{
case GatewayExecutedStatus.Successed:
result = new GatewayExecutedResult(GatewayExecutedStatus.Successed, "Gateway节点成功执行！");
break;
case GatewayExecutedStatus.FallBehindOfXOrJoin:
result = new GatewayExecutedResult(GatewayExecutedStatus.FallBehindOfXOrJoin, "第一个满足条件的节点已经执行，互斥合并节点不能再次被实例化！");
break;
default:
break;
}
return(result);
}
/// <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()));
}
}
}
