/// <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,
IDictionary <string, string> conditionKeyValuePair,
out NextActivityMatchedType resultType)
{
NextActivityComponent child = null;
if (XPDLHelper.IsSimpleComponentNode(forwardTransition.ToActivity.ActivityType) == true) //可流转简单类型节点
{
child = NextActivityComponentFactory.CreateNextActivityComponent(forwardTransition, forwardTransition.ToActivity);
resultType = NextActivityMatchedType.Successed;
}
else if (forwardTransition.ToActivity.ActivityType == ActivityTypeEnum.GatewayNode)
{
child = GetNextActivityListFromGateway(forwardTransition,
forwardTransition.ToActivity,
conditionKeyValuePair,
out resultType);
}
else
{
resultType = NextActivityMatchedType.Failed;
throw new XmlDefinitionException(string.Format("未知的节点类型：{0}", forwardTransition.ToActivity.ActivityType.ToString()));
}
return(child);
}
/// <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) == true) //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 == NETBPMFlow.Engine.Common.GatewayDirectionEnum.AndSplit)
{
name = "必全选节点";
}
else if (activity.GatewayDirectionType == GatewayDirectionEnum.AndSplitMI)
{
name = "并行多实例节点";
}
else
{
name = "或多选节点";
}
component = new NextActivityGateway(name, transition, activity);
}
return(component);
}
public override void Add(NextActivityComponent nextActivity)
{
nextActivityList.Add(nextActivity);
if (hasChildren == false)
{
hasChildren = true;
}
}
public override bool Remove(NextActivityComponent nextActivity)
{
bool isRemoved = nextActivityList.Remove(nextActivity);
if (nextActivityList.Count == 0)
{
hasChildren = false;
}
return(isRemoved);
}
/// <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="fromActivity">要拉取的节点</param>
/// <param name="toActivity">拉取到节点</param>
/// <returns></returns>
internal static NextActivityComponent CreateNextActivityComponent(ActivityEntity fromActivity,
ActivityEntity toActivity)
{
NextActivityComponent component = null;
if (XPDLHelper.IsSimpleComponentNode(fromActivity.ActivityType) == true) //可流转简单类型节点
{
string name = "单一节点";
var transition = TransitionBuilder.CreateJumpforwardEmptyTransition(fromActivity, toActivity);
component = new NextActivityItem(name, transition, fromActivity); //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}",
fromActivity.ActivityType));
}
return(component);
}
/// <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,
IDictionary <string, string> conditionKeyValuePair,
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.ActivityGUID).ToList();
foreach (TransitionEntity transition in transitionList)
{
child = GetNextActivityListFromGatewayCore(transition,
conditionKeyValuePair,
out resultType);
gatewayComponent = AddChildToGatewayComponent(fromTransition, currentGatewayActivity, gatewayComponent, child);
}
return(gatewayComponent);
}
/// <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,
IDictionary <string, string> conditionKeyValuePair,
out NextActivityMatchedType resultType)
{
NextActivityComponent child = null;
NextActivityComponent gatewayComponent = null;
resultType = NextActivityMatchedType.Unknown;
var transitionList = this.ProcessModel.GetForwardTransitionList(currentGatewayActivity.ActivityGUID).ToList();
if (currentGatewayActivity.GatewayDirectionType == GatewayDirectionEnum.AndSplit ||
currentGatewayActivity.GatewayDirectionType == GatewayDirectionEnum.AndSplitMI)
{
//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
bool isCheckedOk = base.ProcessModel.CheckAndSplitOccurrenceCondition(transitionList, conditionKeyValuePair);
if (isCheckedOk)
{
//获取AndSplit的每一条后续连线上的To节点
foreach (TransitionEntity transition in transitionList)
{
child = GetNextActivityListFromGatewayCore(transition,
conditionKeyValuePair,
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)
{
bool isValidTransition = base.ProcessModel.IsValidTransition(transition, conditionKeyValuePair);
if (isValidTransition)
{
child = GetNextActivityListFromGatewayCore(transition,
conditionKeyValuePair,
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)
{
bool isValidTransitionXOr = base.ProcessModel.IsValidTransition(transition, conditionKeyValuePair);
if (isValidTransitionXOr)
{
child = GetNextActivityListFromGatewayCore(transition,
conditionKeyValuePair,
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);
}
/// <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);
}
/// <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>
/// 删除子节点
/// </summary>
/// <param name="nextActivity"></param>
/// <returns></returns>
public virtual bool Remove(NextActivityComponent nextActivity)
{
throw new InvalidOperationException("非组合节点，无子项可以删除！");
}
/// <summary>
/// 添加子节点
/// </summary>
/// <param name="nextActivity"></param>
public virtual void Add(NextActivityComponent nextActivity)
{
throw new InvalidOperationException("非组合节点，不能添加子项！");
}