/// <summary>
/// 退回操作
/// </summary>
/// <param name="appName"></param>
/// <param name="appInstanceID"></param>
/// <param name="processGUID"></param>
/// <param name="userID"></param>
/// <param name="userName"></param>
/// <param name="result"></param>
/// <returns></returns>
public static WfRuntimeManager CreateRuntimeInstanceSendBack(WfAppRunner runner,
ref WfExecutedResult result)
{
WfRuntimeManager rmins = null;
//检查当前运行节点信息
var aim = new ActivityInstanceManager();
var runningNode = aim.GetRunningNode(runner);
if (runningNode.ActivityType != (short)ActivityTypeEnum.TaskNode)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Sendback_NotTaskNode;
result.Message = "当前节点不是任务节点，无法退回上一步节点！";
return(rmins);
}
if (!(runningNode.ActivityState == (short)ActivityStateEnum.Ready ||
runningNode.ActivityState == (short)ActivityStateEnum.Running))
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Sendback_NotInRunning;
result.Message = string.Format("当前节点的状态不在运行状态，无法退回上一步节点！当前节点状态：{0}",
runningNode.ActivityState);
return(rmins);
}
if (aim.IsMineTask(runningNode, runner.UserID) == false)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Sendback_NotMineTask;
result.Message = "不是登录用户的任务，无法退回！";
return(rmins);
}
var processInstance = (new ProcessInstanceManager()).GetById(runningNode.ProcessInstanceID);
var processModel = (new ProcessModel(processInstance.ProcessGUID, processInstance.Version));
//判断是否是多实例节点
if (runningNode.MIHostActivityInstanceID != null &&
runningNode.MIHostActivityInstanceID.Value > 0)
{
var previousActivityInstance = aim.GetPreviousOfMultipleInstanceNode(runningNode.MIHostActivityInstanceID.Value,
runningNode.ID, runningNode.CompleteOrder.Value);
if (previousActivityInstance != null &&
previousActivityInstance.EndedByUserID == runner.UserID)
{
rmins = new WfRuntimeManagerSendBackMI();
rmins.WfExecutedResult = result = new WfExecutedResult();
rmins.BackwardContext.ProcessInstance = processInstance;
rmins.BackwardContext.BackwardToTaskActivity = processModel.GetActivity(previousActivityInstance.ActivityGUID);
rmins.BackwardContext.BackwardToTaskActivityInstance = previousActivityInstance;
rmins.BackwardContext.BackwardFromActivityInstance = runningNode;
rmins.BackwardContext.BackwardTaskReciever = WfBackwardTaskReciever.Instance(
previousActivityInstance.ActivityName,
previousActivityInstance.EndedByUserID,
previousActivityInstance.EndedByUserName);
//封装AppUser对象
rmins.AppRunner.AppName = runner.AppName;
rmins.AppRunner.AppInstanceID = runner.AppInstanceID;
rmins.AppRunner.UserID = runner.UserID;
rmins.AppRunner.UserName = runner.UserName;
rmins.AppRunner.NextActivityPerformers = ActivityResource.CreateNextActivityPerformers(
previousActivityInstance.ActivityGUID,
previousActivityInstance.EndedByUserID,
previousActivityInstance.EndedByUserName);
rmins.ActivityResource = new ActivityResource(runner, rmins.AppRunner.NextActivityPerformers);
return(rmins);
}
}
//以下部分是处理非多实例节点的情况
//正常流转过程，无会签加签等特殊场景
rmins = new WfRuntimeManagerSendBack();
rmins.WfExecutedResult = result = new WfExecutedResult();
//获取上一步流转节点信息，可能经过And, Or等路由节点
var tim = new TransitionInstanceManager();
var lastTaskTransitionInstance = tim.GetLastTaskTransition(runner.AppName,
runner.AppInstanceID, runner.ProcessGUID);
if (lastTaskTransitionInstance.TransitionType == (short)TransitionTypeEnum.Loop)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Sendback_IsLoopNode;
result.Message = "当前流转是自循环，无需退回！";
return(rmins);
}
//设置退回节点的相关信息
bool hasGatewayNode = false;
var sendbackToActivityInstance = tim.GetPreviousActivityInstance(runningNode, true,
out hasGatewayNode).ToList()[0];
if (sendbackToActivityInstance.ActivityType == (short)ActivityTypeEnum.StartNode)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Sendback_PreviousIsStartNode;
result.Message = "上一步是开始节点，无需退回！";
return(rmins);
}
rmins.ProcessModel = processModel;
rmins.BackwardContext.ProcessInstance = processInstance;
rmins.BackwardContext.BackwardToTaskActivity = processModel.GetActivity(sendbackToActivityInstance.ActivityGUID);
rmins.BackwardContext.BackwardToTaskActivityInstance = sendbackToActivityInstance;
rmins.BackwardContext.BackwardToTargetTransitionGUID =
hasGatewayNode == false ? lastTaskTransitionInstance.TransitionGUID : String.Empty; //如果中间有Gateway节点，则没有直接相连的TransitonGUID
rmins.BackwardContext.BackwardFromActivity = processModel.GetActivity(runningNode.ActivityGUID);
rmins.BackwardContext.BackwardFromActivityInstance = runningNode;
rmins.BackwardContext.BackwardTaskReciever = WfBackwardTaskReciever.Instance(sendbackToActivityInstance.ActivityName,
sendbackToActivityInstance.EndedByUserID, sendbackToActivityInstance.EndedByUserName);
//封装AppUser对象
rmins.AppRunner.AppName = runner.AppName;
rmins.AppRunner.AppInstanceID = runner.AppInstanceID;
rmins.AppRunner.ProcessGUID = runner.ProcessGUID;
rmins.AppRunner.UserID = runner.UserID;
rmins.AppRunner.UserName = runner.UserName;
rmins.AppRunner.NextActivityPerformers = ActivityResource.CreateNextActivityPerformers(sendbackToActivityInstance.ActivityGUID,
sendbackToActivityInstance.EndedByUserID,
sendbackToActivityInstance.EndedByUserName);
rmins.ActivityResource = new ActivityResource(runner, rmins.AppRunner.NextActivityPerformers);
return(rmins);
}
/// <summary>
/// 退回操作
/// </summary>
/// <param name="appName"></param>
/// <param name="appInstanceID"></param>
/// <param name="processGUID"></param>
/// <param name="userID"></param>
/// <param name="userName"></param>
/// <param name="result"></param>
/// <returns></returns>
public static WfRuntimeManager CreateRuntimeInstanceSendBack(WfAppRunner runner,
ref WfExecutedResult result)
{
WfRuntimeManager rmins = null;
//检查当前运行节点信息
var aim = new ActivityInstanceManager();
var runningNode = aim.GetRunningNode(runner);
if (runningNode.ActivityType != (short)ActivityTypeEnum.TaskNode)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Sendback_NotTaskNode;
result.Message = "当前节点不是任务节点，无法退回上一步节点！";
return rmins;
}
if (!(runningNode.ActivityState == (short)ActivityStateEnum.Ready
|| runningNode.ActivityState == (short)ActivityStateEnum.Running))
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Sendback_NotInRunning;
result.Message = string.Format("当前节点的状态不在运行状态，无法退回上一步节点！当前节点状态：{0}",
runningNode.ActivityState);
return rmins;
}
if (aim.IsMineTask(runningNode, runner.UserID) == false)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Sendback_NotMineTask;
result.Message = "不是登录用户的任务，无法退回！";
return rmins;
}
var processInstance = (new ProcessInstanceManager()).GetById(runningNode.ProcessInstanceID);
var processModel = (new ProcessModel(processInstance.ProcessGUID, processInstance.Version));
//判断是否是多实例节点
if (runningNode.MIHostActivityInstanceID != null
&& runningNode.MIHostActivityInstanceID.Value > 0)
{
var previousActivityInstance = aim.GetPreviousOfMultipleInstanceNode(runningNode.MIHostActivityInstanceID.Value,
runningNode.ID, runningNode.CompleteOrder.Value);
if (previousActivityInstance != null
&& previousActivityInstance.EndedByUserID == runner.UserID)
{
rmins = new WfRuntimeManagerSendBackMI();
rmins.WfExecutedResult = result = new WfExecutedResult();
rmins.BackwardContext.ProcessInstance = processInstance;
rmins.BackwardContext.BackwardToTaskActivity = processModel.GetActivity(previousActivityInstance.ActivityGUID);
rmins.BackwardContext.BackwardToTaskActivityInstance = previousActivityInstance;
rmins.BackwardContext.BackwardFromActivityInstance = runningNode;
rmins.BackwardContext.BackwardTaskReciever = WfBackwardTaskReciever.Instance(
previousActivityInstance.ActivityName,
previousActivityInstance.EndedByUserID,
previousActivityInstance.EndedByUserName);
//封装AppUser对象
rmins.AppRunner.AppName = runner.AppName;
rmins.AppRunner.AppInstanceID = runner.AppInstanceID;
rmins.AppRunner.UserID = runner.UserID;
rmins.AppRunner.UserName = runner.UserName;
rmins.AppRunner.NextActivityPerformers = ActivityResource.CreateNextActivityPerformers(
previousActivityInstance.ActivityGUID,
previousActivityInstance.EndedByUserID,
previousActivityInstance.EndedByUserName);
rmins.ActivityResource = new ActivityResource(runner, rmins.AppRunner.NextActivityPerformers);
return rmins;
}
}
//以下部分是处理非多实例节点的情况
//正常流转过程，无会签加签等特殊场景
rmins = new WfRuntimeManagerSendBack();
rmins.WfExecutedResult = result = new WfExecutedResult();
//获取上一步流转节点信息，可能经过And, Or等路由节点
var tim = new TransitionInstanceManager();
var lastTaskTransitionInstance = tim.GetLastTaskTransition(runner.AppName,
runner.AppInstanceID, runner.ProcessGUID);
if (lastTaskTransitionInstance.TransitionType == (short)TransitionTypeEnum.Loop)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Sendback_IsLoopNode;
result.Message = "当前流转是自循环，无需退回！";
return rmins;
}
//设置退回节点的相关信息
bool hasGatewayNode = false;
var sendbackToActivityInstance = tim.GetPreviousActivityInstance(runningNode, true,
out hasGatewayNode).ToList()[0];
if (sendbackToActivityInstance.ActivityType == (short)ActivityTypeEnum.StartNode)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Sendback_PreviousIsStartNode;
result.Message = "上一步是开始节点，无需退回！";
return rmins;
}
rmins.ProcessModel = processModel;
rmins.BackwardContext.ProcessInstance = processInstance;
rmins.BackwardContext.BackwardToTaskActivity = processModel.GetActivity(sendbackToActivityInstance.ActivityGUID);
rmins.BackwardContext.BackwardToTaskActivityInstance = sendbackToActivityInstance;
rmins.BackwardContext.BackwardToTargetTransitionGUID =
hasGatewayNode == false ? lastTaskTransitionInstance.TransitionGUID : String.Empty; //如果中间有Gateway节点，则没有直接相连的TransitonGUID
rmins.BackwardContext.BackwardFromActivity = processModel.GetActivity(runningNode.ActivityGUID);
rmins.BackwardContext.BackwardFromActivityInstance = runningNode;
rmins.BackwardContext.BackwardTaskReciever = WfBackwardTaskReciever.Instance(sendbackToActivityInstance.ActivityName,
sendbackToActivityInstance.EndedByUserID, sendbackToActivityInstance.EndedByUserName);
//封装AppUser对象
rmins.AppRunner.AppName = runner.AppName;
rmins.AppRunner.AppInstanceID = runner.AppInstanceID;
rmins.AppRunner.ProcessGUID = runner.ProcessGUID;
rmins.AppRunner.UserID = runner.UserID;
rmins.AppRunner.UserName = runner.UserName;
rmins.AppRunner.NextActivityPerformers = ActivityResource.CreateNextActivityPerformers(sendbackToActivityInstance.ActivityGUID,
sendbackToActivityInstance.EndedByUserID,
sendbackToActivityInstance.EndedByUserName);
rmins.ActivityResource = new ActivityResource(runner, rmins.AppRunner.NextActivityPerformers);
return rmins;
}