/// <summary>
/// 根据Transition，获取下一步节点列表
/// </summary>
/// <param name="forwardTransition">转移实体</param>
/// <param name="conditionKeyValuePair">条件kv对</param>
/// <param name="resultType">结果类型</param>
protected NextActivityComponent GetNextActivityListFromGatewayCore(TransitionEntity forwardTransition,
out NextActivityMatchedType resultType)
{
NextActivityComponent child = null;
if (XPDLHelper.IsSimpleComponentNode(forwardTransition.TargetActivity.ActivityType) == true) //可流转简单类型节点
{
child = NextActivityComponentFactory.CreateNextActivityComponent(forwardTransition, forwardTransition.TargetActivity);
resultType = NextActivityMatchedType.Successed;
}
else if (forwardTransition.TargetActivity.ActivityType == ActivityTypeEnum.GatewayNode)
{
child = GetNextActivityListFromGateway(forwardTransition,
forwardTransition.TargetActivity,
out resultType);
}
else
{
resultType = NextActivityMatchedType.Failed;
throw new XmlDefinitionException(string.Format("未知的节点类型：{0}", forwardTransition.TargetActivity.ActivityType.ToString()));
}
return(child);
}
public override bool Remove(NextActivityComponent nextActivity)
{
bool isRemoved = nextActivityList.Remove(nextActivity);
if (nextActivityList.Count == 0)
hasChildren = false;
return isRemoved;
}
/// <summary>
/// 创建下一步活动的节点
/// </summary>
/// <param name="activity"></param>
/// <returns></returns>
internal static NextActivityComponent CreateNextActivityComponent(TransitionEntity transition,
ActivityEntity activity)
{
NextActivityComponent component = null;
if (XPDLHelper.IsSimpleComponentNode(activity.ActivityType)) //可流转简单类型节点
{
string name = "单一节点";
component = new NextActivityItem(name, transition, activity);
}
else if (activity.ActivityType == ActivityTypeEnum.SubProcessNode)
{
string name = "子流程节点";
component = new NextActivityItem(name, transition, activity);
}
else
{
string name = string.Empty;
if (activity.GatewayDirectionType == GatewayDirectionEnum.AndSplit)
{
name = "必全选节点";
}
else
{
name = "或多选节点";
}
component = new NextActivityGateway(name, transition, activity);
}
return(component);
}
/// <summary>
/// 获取下一步节点列表，满足运行时条件信息
/// </summary>
/// <param name="currentActivityGUID"></param>
/// <returns></returns>
public NextActivityMatchedResult GetNextActivityList(string currentActivityID)
{
try
{
NextActivityMatchedResult result = null;
NextActivityMatchedType resultType = NextActivityMatchedType.Unknown;
//创建“下一步节点”的根节点
NextActivityComponent root = NextActivityComponentFactory.CreateNextActivityComponent();
NextActivityComponent child = null;
List <TransitionEntity> transitionList = GetForwardTransitionList(currentActivityID).ToList();
if (transitionList.Count > 0)
{
//遍历连线，获取下一步节点的列表
foreach (TransitionEntity transition in transitionList)
{
if (XPDLHelper.IsWorkItem(transition.TargetActivity.ActivityType)) //可流转简单类型节点 || 子流程节点
{
child = NextActivityComponentFactory.CreateNextActivityComponent(transition, transition.TargetActivity);
}
else if (transition.TargetActivity.ActivityType == ActivityTypeEnum.GatewayNode)
{
NextActivityScheduleBase activitySchedule = NextActivityScheduleFactory.CreateActivitySchedule(this as IProcessModel,
transition.TargetActivity.GatewaySplitJoinType);
child = activitySchedule.GetNextActivityListFromGateway(transition,
transition.TargetActivity,
out resultType);
}
else
{
throw new XmlDefinitionException(string.Format("未知的节点类型：{0}", transition.TargetActivity.ActivityType.ToString()));
}
if (child != null)
{
root.Add(child);
resultType = NextActivityMatchedType.Successed;
}
}
}
else
{
resultType = NextActivityMatchedType.NoneTransitionFilteredByCondition;
}
result = NextActivityMatchedResult.CreateNextActivityMatchedResultObject(resultType, root);
return(result);
}
catch (System.Exception e)
{
throw new WfXpdlException(string.Format("解析流程定义文件发生异常，异常描述：{0}", e.Message), e);
}
}
/// <summary>
/// 添加子节点到网关节点
/// </summary>
/// <param name="newRoot">新的根节点</param>
/// <param name="root">根节点</param>
/// <param name="child">子节点</param>
/// <returns>下一步活动节点</returns>
private NextActivityComponent AddChildToNewGatewayComponent(NextActivityComponent newRoot,
NextActivityComponent root,
NextActivityComponent child)
{
if ((newRoot == null) && (child != null))
{
newRoot = NextActivityComponentFactory.CreateNextActivityComponent(root);
}
if ((newRoot != null) && (child != null))
{
newRoot.Add(child);
}
return(newRoot);
}
/// <summary>
/// 把子节点添加到网关路由节点，根据网关节点和子节点是否为空处理
/// </summary>
/// <param name="fromTransition">起始转移</param>
/// <param name="currentGatewayActivity">当前网关节点</param>
/// <param name="gatewayComponent">网关Component</param>
/// <param name="child">子节点</param>
/// <returns>下一步Component</returns>
protected NextActivityComponent AddChildToGatewayComponent(TransitionEntity fromTransition,
ActivityEntity currentGatewayActivity,
NextActivityComponent gatewayComponent,
NextActivityComponent child)
{
if ((gatewayComponent == null) && (child != null))
{
gatewayComponent = NextActivityComponentFactory.CreateNextActivityComponent(fromTransition, currentGatewayActivity);
}
if ((gatewayComponent != null) && (child != null))
{
gatewayComponent.Add(child);
}
return(gatewayComponent);
}
/// <summary>
/// 创建跳转节点(强制拉取跳转方式，后续节点状态可以强制拉取前置节点到当前节点[后续节点])
/// </summary>
/// <param name="sourceActivity">要拉取的节点</param>
/// <param name="targetActivity">拉取到节点</param>
/// <returns></returns>
internal static NextActivityComponent CreateNextActivityComponent(ActivityEntity sourceActivity,
ActivityEntity targetActivity)
{
NextActivityComponent component = null;
if (XPDLHelper.IsSimpleComponentNode(sourceActivity.ActivityType) == true) //可流转简单类型节点
{
string name = "单一节点";
var transition = TransitionBuilder.CreateJumpforwardEmptyTransition(sourceActivity, targetActivity);
component = new NextActivityItem(name, transition, sourceActivity); //强制拉取跳转类型的transition 为空类型
}
else
{
throw new ApplicationException(string.Format("不能跳转到其它非任务类型的节点！当前节点:{0}",
sourceActivity.ActivityType));
}
return(component);
}
/// <summary>
/// 获取下一步活动节点树，供流转界面使用
/// </summary>
/// <param name="currentActivityGUID"></param>
/// <param name="condition"></param>
/// <returns></returns>
//public IList<NodeView> GetNextActivityTree(int processInstanceID,
// string currentActivityID)
//{
// var treeNodeList = new List<NodeView>();
// var activity = GetActivity(currentActivityID);
// //判断有没有指定的跳转节点信息
// if (activity.ActivityTypeDetail.SkipInfo != null
// && activity.ActivityTypeDetail.SkipInfo.IsSkip == true)
// {
// //获取跳转节点信息
// var skipto = activity.ActivityTypeDetail.SkipInfo.Skipto;
// var skiptoActivity = GetActivity(skipto);
// treeNodeList.Add(new NodeView
// {
// ActivityId = skiptoActivity.ActivityID,
// ActivityName = skiptoActivity.ActivityName,
// ActivityCode = skiptoActivity.ActivityCode,
// Participants = GetActivityParticipants(skiptoActivity.ActivityID),
// //ReceiverType = skiptoActivity.Transition.Receiver.ReceiverType
// IsSkipTo = true
// });
// }
// else
// {
// //Transiton方式的流转定义
// var nextSteps = GetNextActivityList(activity.ActivityID);
// foreach (var child in nextSteps.Root)
// {
// if (child.HasChildren)
// {
// Tranverse(child, treeNodeList);
// }
// else
// {
// treeNodeList.Add(new NodeView
// {
// ActivityId = child.Activity.ActivityID,
// ActivityName = child.Activity.ActivityName,
// ActivityCode = child.Activity.ActivityCode,
// Participants = GetActivityParticipants(child.Activity.ActivityID),
// });
// }
// }
// }
// return treeNodeList;
//}
/// <summary>
/// 迭代遍历
/// </summary>
/// <param name="root"></param>
/// <param name="treeNodeList"></param>
private void Tranverse(NextActivityComponent root, IList <NodeView> treeNodeList)
{
foreach (var child in root)
{
if (child.HasChildren)
{
Tranverse(child, treeNodeList);
}
else
{
treeNodeList.Add(new NodeView
{
ActivityId = child.Activity.ActivityID,
ActivityName = child.Activity.ActivityName,
ActivityCode = child.Activity.ActivityCode,
Participants = GetActivityParticipants(child.Activity.ActivityID),
});
}
}
}
/// <summary>
/// 获取下一步节点列表
/// </summary>
/// <param name="processInstanceID"></param>
/// <param name="fromTransition"></param>
/// <param name="currentGatewayActivity"></param>
/// <param name="conditionKeyValuePair"></param>
/// <returns></returns>
internal override NextActivityComponent GetNextActivityListFromGateway(TransitionEntity fromTransition,
ActivityEntity currentGatewayActivity,
out NextActivityMatchedType resultType)
{
NextActivityComponent child = null;
NextActivityComponent gatewayComponent = null;
resultType = NextActivityMatchedType.Unknown;
//直接取出下步列表，运行时再根据条件执行
List <TransitionEntity> transitionList = base.ProcessModel.GetForwardTransitionList(currentGatewayActivity.ActivityID).ToList();
foreach (TransitionEntity transition in transitionList)
{
child = GetNextActivityListFromGatewayCore(transition,
out resultType);
gatewayComponent = AddChildToGatewayComponent(fromTransition, currentGatewayActivity, gatewayComponent, child);
}
return(gatewayComponent);
}
public override void Add(NextActivityComponent nextActivity)
{
nextActivityList.Add(nextActivity);
if (hasChildren == false)
hasChildren = true;
}
/// <summary>
/// 创建方法
/// </summary>
/// <param name="scheduleStatus"></param>
/// <param name="root"></param>
/// <returns></returns>
internal static NextActivityMatchedResult CreateNextActivityMatchedResultObject(NextActivityMatchedType matchedType,
NextActivityComponent root)
{
NextActivityMatchedResult result = new NextActivityMatchedResult(matchedType, root);
switch (matchedType)
{
case NextActivityMatchedType.Unknown:
result.Message = NextActivityMatchedResult.Unkonwn;
break;
case NextActivityMatchedType.Failed:
result.Message = NextActivityMatchedResult.Exceptional;
break;
case NextActivityMatchedType.Successed:
result.Message = NextActivityMatchedResult.Successed;
break;
case NextActivityMatchedType.NoneTransitionFilteredByCondition:
result.Message = NextActivityMatchedResult.NoneTransitionFilteredByCondition;
break;
case NextActivityMatchedType.WaitingForSplitting:
result.Message = NextActivityMatchedResult.NoneTransitionAsBeingFiltered;
break;
case NextActivityMatchedType.NoneTransitionMatchedToSplit:
result.Message = NextActivityMatchedResult.NoneWayMatchedToSplit;
break;
case NextActivityMatchedType.WaitingForOthersJoin:
result.Message = NextActivityMatchedResult.WaitingForOthersJoin;
break;
case NextActivityMatchedType.NotMadeItselfToJoin:
result.Message = NextActivityMatchedResult.NotMadeItselfToJoin;
break;
}
return(result);
}
private NextActivityMatchedResult(NextActivityMatchedType matchedType,
NextActivityComponent root)
{
MatchedType = matchedType;
Root = root;
}
/// <summary>
/// 根据现有下一步节点列表，创建新的下一步节点列表对象
/// </summary>
/// <param name="c"></param>
/// <returns></returns>
internal static NextActivityComponent CreateNextActivityComponent(NextActivityComponent c)
{
NextActivityComponent newComp = CreateNextActivityComponent(c.Transition, c.Activity);
return(newComp);
}
public virtual bool Remove(NextActivityComponent nextActivity)
{
throw new InvalidOperationException("非组合节点，无子项可以删除！");
}
public virtual void Add(NextActivityComponent nextActivity)
{
throw new InvalidOperationException("非组合节点，不能添加子项！");
}
/// <summary>
/// 获取下一步节点列表
/// </summary>
/// <param name="processInstanceID"></param>
/// <param name="fromTransition"></param>
/// <param name="currentGatewayActivity"></param>
/// <param name="conditionKeyValuePair"></param>
/// <returns></returns>
internal override NextActivityComponent GetNextActivityListFromGateway(TransitionEntity fromTransition,
ActivityEntity currentGatewayActivity,
out NextActivityMatchedType resultType)
{
NextActivityComponent child = null;
NextActivityComponent gatewayComponent = null;
resultType = NextActivityMatchedType.Unknown;
var transitionList = this.ProcessModel.GetForwardTransitionList(currentGatewayActivity.ActivityID).ToList();
if (currentGatewayActivity.GatewayDirectionType == GatewayDirectionEnum.AndSplit)
{
//判读连线上的条件是否都满足，如果都满足才可以取出后续节点列表
//获取AndSplit的每一条后续连线上的To节点
foreach (TransitionEntity transition in transitionList)
{
child = GetNextActivityListFromGatewayCore(transition,
out resultType);
gatewayComponent = AddChildToGatewayComponent(fromTransition, currentGatewayActivity, gatewayComponent, child);
}
if (gatewayComponent == null)
{
resultType = NextActivityMatchedType.WaitingForSplitting;
}
}
else if (currentGatewayActivity.GatewayDirectionType == GatewayDirectionEnum.OrSplit)
{
//获取OrSplit的，满足条件的后续连线上的To节点
foreach (TransitionEntity transition in transitionList)
{
child = GetNextActivityListFromGatewayCore(transition,
out resultType);
gatewayComponent = AddChildToGatewayComponent(fromTransition, currentGatewayActivity, gatewayComponent, child);
if (gatewayComponent == null)
{
resultType = NextActivityMatchedType.NoneTransitionMatchedToSplit;
}
}
}
else if (currentGatewayActivity.GatewayDirectionType == GatewayDirectionEnum.XOrSplit)
{
//按连线定义的优先级排序
transitionList.Sort(new TransitionPriorityCompare());
//获取XOrSplit的，第一条满足条件的后续连线上的To节点
foreach (TransitionEntity transition in transitionList)
{
child = GetNextActivityListFromGatewayCore(transition,
out resultType);
gatewayComponent = AddChildToGatewayComponent(fromTransition, currentGatewayActivity, gatewayComponent, child);
//退出循环
break;
}
if (gatewayComponent == null)
{
resultType = NextActivityMatchedType.NoneTransitionMatchedToSplit;
}
}
else if (currentGatewayActivity.GatewayDirectionType == GatewayDirectionEnum.ComplexSplit)
{
resultType = NextActivityMatchedType.Failed;
throw new Exception("ComplexSplit 没有具体实现！");
}
else
{
resultType = NextActivityMatchedType.Failed;
throw new Exception("Split 分支节点的类型不明确！");
}
return(gatewayComponent);
}