/// <summary>
/// 获取上一步节点树
/// </summary>
/// <param name="runningNode">运行活动</param>
/// <param name="hasGatewayPassed">是否经过网关</param>
/// <returns>上一步步骤列表</returns>
private IList <NodeView> GetPreviousActivityTree(ActivityInstanceEntity runningNode, out Boolean hasGatewayPassed)
{
var aim = new ActivityInstanceManager();
//获取前置节点列表
var processInstance = (new ProcessInstanceManager()).GetById(runningNode.ProcessInstanceID);
var processModel = ProcessModelFactory.Create(processInstance.ProcessGUID, processInstance.Version);
var previousActivityList = GetPreviousActivityList(runningNode, processModel, out hasGatewayPassed);
//封装返回结果集合
var nodeList = new List <NodeView>();
foreach (var activity in previousActivityList)
{
//判断是否是会签节点
if (processModel.IsMINode(activity) == true)
{
//获取上一步节点的运行记录
if (processModel.IsMIParallel(activity) == true)
{
//并行会签节点读取所有完成的子节点
var activityInstanceList = aim.GetPreviousParallelMultipleInstanceListCompleted(runningNode, activity.ActivityGUID);
foreach (var ai in activityInstanceList)
{
AppendNodeViewList(nodeList, activity, ai.EndedByUserID, ai.EndedByUserName);
}
}
else if (processModel.IsMISequence(activity) == true)
{
if (processModel.IsTaskNode(runningNode) == true)
{
//当前节点是任务节点
//退回到会签节点的最后一步
var activityInstance = aim.GetPreviousActivityInstanceSimple(runningNode, activity.ActivityGUID);
if (activityInstance != null)
{
AppendNodeViewList(nodeList, activity, activityInstance.EndedByUserID, activityInstance.EndedByUserName);
}
}
else if (processModel.IsMISequence(activity) == true)
{
//串行会签节点按照CompleteOrder顺序递减读取上一步
var previousAdjacentBrotherNode = GetPreviousOfMultipleInstanceNode(
runningNode.MIHostActivityInstanceID.Value,
runningNode.ID,
runningNode.CompleteOrder.Value);
if (previousAdjacentBrotherNode != null)
{
AppendNodeViewList(nodeList, activity, previousAdjacentBrotherNode.EndedByUserID, previousAdjacentBrotherNode.EndedByUserName);
}
}
}
}
else
{
if (hasGatewayPassed == true)
{
//跨越网关类型
var activityInstanceList = aim.GetActivityInstanceListCompletedSimple(runningNode.ProcessInstanceID, activity.ActivityGUID);
foreach (var a in activityInstanceList)
{
AppendNodeViewList(nodeList, activity, a.EndedByUserID, a.EndedByUserName);
}
}
else
{
//普通任务节点
var activityInstance = aim.GetPreviousActivityInstanceSimple(runningNode, activity.ActivityGUID);
if (activityInstance != null)
{
AppendNodeViewList(nodeList, activity, activityInstance.EndedByUserID, activityInstance.EndedByUserName);
}
}
}
}
return(nodeList);
}