/// <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>
/// 递归获取满足条件的下一步节点列表
/// </summary>
/// <param name="root"></param>
/// <param name="activityResource"></param>
/// <param name="expression"></param>
/// <returns></returns>
private NextActivityComponent GetNextActivityListByExpressionRecurisivly(NextActivityComponent root,
ActivityResource activityResource,
Expression <Func <ActivityResource, ActivityEntity, bool> > expression)
{
NextActivityComponent r1 = null;
foreach (NextActivityComponent c in root)
{
if (c.HasChildren)
{
NextActivityComponent child = GetNextActivityListByExpressionRecurisivly(c, activityResource, expression);
r1 = AddChildToNewGatewayComponent(r1, c, child);
}
else
{
if (expression.Compile().Invoke(activityResource, c.Activity))
{
r1 = AddChildToNewGatewayComponent(r1, root, c);
}
}
}
return(r1);
}