/// <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>
/// 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);
}
/// <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>
/// 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);
}