/// <summary>
/// 获取下一步节点列表，伴随运行时条件信息
/// </summary>
/// <param name="currentActivity"></param>
/// <param name="conditionKeyValuePair"></param>
/// <returns></returns>
internal NextActivityMatchedResult GetNextActivityList(ActivityEntity currentActivity,
IDictionary <string, string> conditionKeyValuePair = null)
{
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(currentActivity.ActivityGUID,
conditionKeyValuePair).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 (transition.ToActivity.NodeType == NodeTypeEnum.EndNode ||
transition.ToActivity.NodeType == NodeTypeEnum.TaskNode)
{
child = NextActivityComponentFactory.CreateNextActivityComponent(transition, transition.ToActivity);
}
else if (transition.ToActivity.NodeType == NodeTypeEnum.GatewayNode)
{
NextActivityScheduleBase activitySchedule = NextActivityScheduleFactory.CreateActivitySchedule(this,
transition.ToActivity.GatewaySplitJoinType);
child = activitySchedule.GetNextActivityListFromGateway(transition,
transition.ToActivity,
conditionKeyValuePair,
out resultType);
}
else
{
throw new XmlDefinitionException(string.Format("未知的节点类型：{0}", transition.ToActivity.NodeType.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>
/// 获取下一步节点列表，伴随条件信息
/// </summary>
/// <param name="currentActivity"></param>
/// <param name="conditionKeyValuePair"></param>
/// <returns></returns>
internal NextActivityMatchedResult GetNextActivityList(Guid ProcessInstanceGUID,
ActivityEntity currentActivity,
ConditionKeyValuePair conditionKeyValuePair)
{
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;
TransitionManager tm = new TransitionManager(this.ProcessEntity);
List <TransitionEntity> transitionList = tm.GetForwardTransitionList(currentActivity.ActivityGUID,
conditionKeyValuePair).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 (transition.ToActivity.NodeType == NodeTypeEnum.EndNode ||
transition.ToActivity.NodeType == NodeTypeEnum.TaskNode)
{
child = NextActivityComponentFactory.CreateNextActivityComponent(transition, transition.ToActivity);
}
else if (transition.ToActivity.NodeType == NodeTypeEnum.GatewayNode)
{
NextActivityScheduleBase activitySchedule = NextActivityScheduleFactory.CreateActivitySchedule(this.ProcessEntity,
transition.ToActivity.GatewaySplitJoinType);
child = activitySchedule.GetNextActivityListFromGateway(ProcessInstanceGUID,
transition,
transition.ToActivity,
conditionKeyValuePair,
out resultType);
}
else
{
throw new XmlDefinitionException(string.Format("未知的节点类型：{0}", transition.ToActivity.NodeType.ToString()));
}
if (child != null)
{
root.Add(child);
resultType = NextActivityMatchedType.Successed;
}
}
}
else
{
resultType = NextActivityMatchedType.NoneTransitionFilteredByCondition;
}
result = NextActivityMatchedResult.CreateNextActivityMatchedResultObject(resultType, root);
return(result);
}
/// <summary>
/// 获取下一步节点列表（伴随条件和资源）
/// </summary>
/// <param name="currentActivity"></param>
/// <param name="conditionKeyValuePair"></param>
/// <returns></returns>
internal NextActivityMatchedResult GetNextActivityList(ActivityEntity currentActivity,
IDictionary <string, string> conditionKeyValuePair,
ActivityResource activityResource,
Expression <Func <ActivityResource, ActivityEntity, bool> > expression)
{
NextActivityComponent newRoot = NextActivityComponentFactory.CreateNextActivityComponent();
//先获取未加运行时表达式过滤的下一步节点列表
NextActivityMatchedResult result = GetNextActivityList(currentActivity,
conditionKeyValuePair);
foreach (NextActivityComponent c in result.Root)
{
if (c.HasChildren)
{
NextActivityComponent child = GetNextActivityListByExpressionRecurisivly(c, activityResource, expression);
if (child != null)
{
newRoot.Add(child);
}
}
else
{
if (expression.Compile().Invoke(activityResource, c.Activity))
{
newRoot.Add(c);
}
}
}
NextActivityMatchedResult newResult = null;
if (newRoot.HasChildren)
{
newResult = NextActivityMatchedResult.CreateNextActivityMatchedResultObject(result.MatchedType, newRoot);
}
else
{
newResult = NextActivityMatchedResult.CreateNextActivityMatchedResultObject(NextActivityMatchedType.NoneTransitionFilteredByCondition,
newRoot);
}
return(newResult);
}
/// <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);
}