/// <summary>
 /// 给执行者生成任务
 /// </summary>
 /// <param name="sendbackOperation">退回类型</param>
 /// <param name="performerList"></param>
 /// <param name="session">会话</param>
 private void DistributeEachPerformerTask(SendBackOperation sendbackOperation,
                                          PerformerList performerList,
                                          IDbSession session)
 {
     foreach (var performer in performerList)
     {
         //执行退回方法
         var nodeSendBack = NodeSendBackFactory.CreateNodeReverter(sendbackOperation, session);
         sendbackOperation.BackwardToTaskPerformer = performer;
         nodeSendBack.Execute();
     }
 }
        /// <summary>
        /// 创建撤销处理运行时
        /// </summary>
        /// <param name="runner">撤销人</param>
        /// <param name="result">创建结果</param>
        /// <returns>运行时管理器</returns>
        internal static WfRuntimeManager CreateRuntimeInstanceWithdraw(WfAppRunner runner,
                                                                       ref WfExecutedResult result)
        {
            var rmins = new WfRuntimeManagerSendBack();

            rmins.WfExecutedResult = result = new WfExecutedResult();

            if (runner.TaskID == null)
            {
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Withdraw_ErrorArguments;
                result.Message       = LocalizeHelper.GetEngineMessage("wfruntimemanagerfactory.CreateRuntimeInstanceWithdraw.missingtaskid.error");
                return(rmins);
            }
            //获取已经完成任务的信息
            var tm       = new TaskManager();
            var taskDone = tm.GetTaskView(runner.TaskID.Value);

            if (tm.IsMine(taskDone, runner.UserID) == false)
            {
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Sendback_NotMineTask;
                result.Message       = LocalizeHelper.GetEngineMessage("wfruntimemanagerfactory.CreateRuntimeInstanceWithdraw.nonetask.error");
                return(rmins);
            }

            //赋值下一步办理列表
            runner.NextActivityPerformers = NextStepUtility.CreateNextStepPerformerList(taskDone.ActivityGUID,
                                                                                        taskDone.AssignedToUserID, taskDone.AssignedToUserName);

            //没有指定退回节点信息
            if (runner.NextActivityPerformers == null || runner.NextActivityPerformers.Count == 0)
            {
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Sendback_IsNull;
                result.Message       = LocalizeHelper.GetEngineMessage("wfruntimemanagerfactory.CreateRuntimeInstanceWithdraw.noneperformer.error");

                return(rmins);
            }

            //获取待办任务
            var tim          = new TransitionInstanceManager();
            var nextStepList = tim.GetTargetActivityInstanceList(taskDone.ActivityInstanceID).ToList();

            ActivityInstanceEntity runningNode = nextStepList.Count > 0 ?  nextStepList[0] : null;

            if (runningNode == null)
            {
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Sendback_NotInRunning;
                result.Message       = LocalizeHelper.GetEngineMessage("wfruntimemanagerfactory.CreateRuntimeInstanceWithdraw.nonerun.error");

                return(rmins);
            }

            var activityType = EnumHelper.ParseEnum <ActivityTypeEnum>(runningNode.ActivityType.ToString());

            if (XPDLHelper.IsSimpleComponentNode(activityType) == false)
            {
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Sendback_NotTaskNode;
                result.Message       = LocalizeHelper.GetEngineMessage("wfruntimemanagerfactory.CreateRuntimeInstanceWithdraw.nottask.error");
                return(rmins);
            }

            //获取待办任务(模拟待办任务用户做退回处理)
            var taskToDo = tm.GetTaskViewByActivity(runningNode.ProcessInstanceID, runningNode.ID);

            runner.UserID   = taskToDo.AssignedToUserID;
            runner.UserName = taskToDo.AssignedToUserName;

            //获取上一步节点信息
            var hasGatewayPassed = false;
            var processInstance  = (new ProcessInstanceManager()).GetById(runningNode.ProcessInstanceID);

            var previousStepChecker  = new PreviousStepChecker();
            var processModel         = ProcessModelFactory.Create(taskToDo.ProcessGUID, taskToDo.Version);
            var previousActivityList = previousStepChecker.GetPreviousActivityList(runningNode, processModel, out hasGatewayPassed);

            //判断退回是否有效
            if (previousActivityList == null || previousActivityList.Count == 0)
            {
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Sendback_IsNull;
                result.Message       = LocalizeHelper.GetEngineMessage("wfruntimemanagerfactory.CreateRuntimeInstanceWithdraw.empty.error");
                return(rmins);
            }

            //检查节点是否一致
            if (previousActivityList.Count == 1)
            {
                var onlyActivityGUID = previousActivityList[0].ActivityGUID;
                var isOnly           = true;
                foreach (var step in runner.NextActivityPerformers)
                {
                    if (step.Key != onlyActivityGUID)
                    {
                        isOnly = false;
                        break;
                    }
                }

                //存在不一致的退回节点
                if (isOnly == false)
                {
                    result.Status        = WfExecutedStatus.Exception;
                    result.ExceptionType = WfExceptionType.Sendback_IsTooManyPrevious;
                    result.Message       = LocalizeHelper.GetEngineMessage("wfruntimemanagerfactory.CreateRuntimeInstanceWithdraw.notunique.error");

                    return(rmins);
                }
            }

            //创建运行时
            rmins.TaskView = taskToDo;
            rmins.RunningActivityInstance = runningNode;
            rmins.ProcessInstanceID       = runningNode.ProcessInstanceID;
            rmins.ProcessInstance         = processInstance;
            rmins.ProcessModel            = processModel;

            rmins.AppRunner.AppName                = runner.AppName;
            rmins.AppRunner.AppInstanceID          = runner.AppInstanceID;
            rmins.AppRunner.UserID                 = runner.UserID;
            rmins.AppRunner.UserName               = runner.UserName;
            rmins.AppRunner.NextActivityPerformers = runner.NextActivityPerformers;

            //设置退回选项类
            var sendbackOperation = new SendBackOperation();

            sendbackOperation.BackwardType    = BackwardTypeEnum.Withdrawed;
            sendbackOperation.ProcessInstance = processInstance;
            sendbackOperation.BackwardFromActivityInstance = runningNode;
            sendbackOperation.HasGatewayPassed             = hasGatewayPassed;
            sendbackOperation.ActivityResource             = new ActivityResource(runner, rmins.AppRunner.NextActivityPerformers);
            sendbackOperation.ProcessModel             = processModel;
            sendbackOperation.IsCancellingBrothersNode = true;          //撤销时默认撤销各个并行分支

            rmins.SendBackOperation = sendbackOperation;

            return(rmins);
        }
        /// <summary>
        /// 退回操作
        /// </summary>
        /// <param name="runner">执行者</param>
        /// <param name="result">结果对象</param>
        /// <returns>运行时实例对象</returns>
        internal static WfRuntimeManager CreateRuntimeInstanceSendBack(WfAppRunner runner,
                                                                       ref WfExecutedResult result)
        {
            var rmins = new WfRuntimeManagerSendBack();

            rmins.WfExecutedResult = result = new WfExecutedResult();

            //没有指定退回节点信息
            if (runner.NextPerformerType != NextPerformerIntTypeEnum.Traced &&
                (runner.NextActivityPerformers == null || runner.NextActivityPerformers.Count == 0))
            {
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Sendback_IsNull;
                result.Message       = LocalizeHelper.GetEngineMessage("wfruntimemanagerfactory.CreateRuntimeInstanceSendBack.null.error");

                return(rmins);
            }

            //先查找当前用户正在办理的运行节点
            var            aim         = new ActivityInstanceManager();
            TaskViewEntity taskView    = null;
            var            runningNode = aim.GetRunningNode(runner, out taskView);

            if (runningNode == null)
            {
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Sendback_NotInRunning;
                result.Message       = LocalizeHelper.GetEngineMessage("wfruntimemanagerfactory.CreateRuntimeInstanceSendBack.nonerun.error");

                return(rmins);
            }

            if (aim.IsMineTask(runningNode, runner.UserID) == false)
            {
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Sendback_NotMineTask;
                result.Message       = LocalizeHelper.GetEngineMessage("wfruntimemanagerfactory.CreateRuntimeInstanceSendBack.nonetask.error");
                return(rmins);
            }

            var activityType = EnumHelper.ParseEnum <ActivityTypeEnum>(runningNode.ActivityType.ToString());

            if (XPDLHelper.IsSimpleComponentNode(activityType) == false)
            {
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Sendback_NotTaskNode;
                result.Message       = LocalizeHelper.GetEngineMessage("wfruntimemanagerfactory.CreateRuntimeInstanceSendBack.nottask.error");
                return(rmins);
            }

            //获取上一步节点信息
            var hasGatewayPassed     = false;
            var processInstance      = (new ProcessInstanceManager()).GetById(runningNode.ProcessInstanceID);
            var processModel         = ProcessModelFactory.Create(processInstance.ProcessGUID, processInstance.Version);
            var previousStepChecker  = new PreviousStepChecker();
            var previousActivityList = previousStepChecker.GetPreviousActivityList(runningNode, processModel, out hasGatewayPassed);

            //判断退回是否有效
            if (previousActivityList == null || previousActivityList.Count == 0)
            {
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Sendback_IsNull;
                result.Message       = LocalizeHelper.GetEngineMessage("wfruntimemanagerfactory.CreateRuntimeInstanceSendBack.empty.error");
                return(rmins);
            }

            //前端用户指定退回步骤的模式
            if (runner.NextPerformerType != NextPerformerIntTypeEnum.Traced)
            {
                if (runner.NextActivityPerformers == null || runner.NextActivityPerformers.Count == 0)
                {
                    result.Status        = WfExecutedStatus.Exception;
                    result.ExceptionType = WfExceptionType.Sendback_IsNull;
                    result.Message       = LocalizeHelper.GetEngineMessage("wfruntimemanagerfactory.CreateRuntimeInstanceSendBack.noneperformer.error");

                    return(rmins);
                }

                //检查节点是否一致
                if (previousActivityList.Count == 1)
                {
                    var onlyActivityGUID = previousActivityList[0].ActivityGUID;
                    var isOnly           = true;
                    foreach (var step in runner.NextActivityPerformers)
                    {
                        if (step.Key != onlyActivityGUID)
                        {
                            isOnly = false;
                            break;
                        }
                    }

                    //存在不一致的退回节点
                    if (isOnly == false)
                    {
                        result.Status        = WfExecutedStatus.Exception;
                        result.ExceptionType = WfExceptionType.Sendback_IsTooManyPrevious;
                        result.Message       = LocalizeHelper.GetEngineMessage("wfruntimemanagerfactory.CreateRuntimeInstanceSendBack.notunique.error");

                        return(rmins);
                    }
                }
            }
            else
            {
                //Traced 用于直接返回上一步使用,测试模式
                var prevActivity  = previousActivityList[0];
                var performerList = PerformerBuilder.CreatePerformerList(runningNode.CreatedByUserID, runningNode.CreatedByUserName);
                runner.NextActivityPerformers = ActivityResource.CreateNextActivityPerformers(prevActivity.ActivityGUID, performerList);
            }

            //创建运行时
            rmins.TaskView = taskView;
            rmins.RunningActivityInstance = runningNode;
            rmins.ProcessInstanceID       = runningNode.ProcessInstanceID;
            rmins.ProcessInstance         = processInstance;
            rmins.ProcessModel            = processModel;

            rmins.AppRunner.AppName                = runner.AppName;
            rmins.AppRunner.AppInstanceID          = runner.AppInstanceID;
            rmins.AppRunner.UserID                 = runner.UserID;
            rmins.AppRunner.UserName               = runner.UserName;
            rmins.AppRunner.NextActivityPerformers = runner.NextActivityPerformers;

            //设置退回选项类
            var sendbackOperation = new SendBackOperation();

            sendbackOperation.BackwardType    = BackwardTypeEnum.Sendback;
            sendbackOperation.ProcessInstance = processInstance;
            sendbackOperation.BackwardFromActivityInstance = runningNode;
            sendbackOperation.HasGatewayPassed             = hasGatewayPassed;
            sendbackOperation.ActivityResource             = new ActivityResource(runner, rmins.AppRunner.NextActivityPerformers);
            sendbackOperation.ProcessModel             = processModel;
            sendbackOperation.IsCancellingBrothersNode = (runner.ControlParameterSheet != null &&
                                                          runner.ControlParameterSheet.IsCancellingBrothersNode == 1) ? true : false;

            rmins.SendBackOperation = sendbackOperation;

            return(rmins);
        }