Exemplo n.º 1
0
        /// <summary>
        /// 创建下一步活动的节点
        /// </summary>
        /// <param name="activity"></param>
        /// <returns></returns>
        internal static NextActivityComponent CreateNextActivityComponent(TransitionEntity transition,
                                                                          ActivityEntity activity)
        {
            NextActivityComponent component = null;

            if (XPDLHelper.IsSimpleComponentNode(activity.ActivityType) == true)           //可流转简单类型节点
            {
                string name = "单一节点";
                component = new NextActivityItem(name, transition, activity);
            }
            else if (activity.ActivityType == ActivityTypeEnum.SubProcessNode)
            {
                string name = "子流程节点";
                component = new NextActivityItem(name, transition, activity);
            }
            else
            {
                string name = string.Empty;
                if (activity.GatewayDirectionType == Slickflow.Engine.Common.GatewayDirectionEnum.AndSplit)
                {
                    name = "必全选节点";
                }
                else if (activity.GatewayDirectionType == GatewayDirectionEnum.AndSplitMI)
                {
                    name = "并行多实例节点";
                }
                else
                {
                    name = "或多选节点";
                }

                component = new NextActivityGateway(name, transition, activity);
            }
            return(component);
        }
        /// <summary>
        /// 根据Transition,获取下一步节点列表
        /// </summary>
        /// <param name="forwardTransition">转移实体</param>
        /// <param name="conditionKeyValuePair">条件kv对</param>
        /// <param name="resultType">结果类型</param>
        protected NextActivityComponent GetNextActivityListFromGatewayCore(TransitionEntity forwardTransition,
                                                                           IDictionary <string, string> conditionKeyValuePair,
                                                                           out NextActivityMatchedType resultType)
        {
            NextActivityComponent child = null;

            if (XPDLHelper.IsSimpleComponentNode(forwardTransition.ToActivity.ActivityType) == true)       //可流转简单类型节点
            {
                child      = NextActivityComponentFactory.CreateNextActivityComponent(forwardTransition, forwardTransition.ToActivity);
                resultType = NextActivityMatchedType.Successed;
            }
            else if (forwardTransition.ToActivity.ActivityType == ActivityTypeEnum.GatewayNode)
            {
                child = GetNextActivityListFromGateway(forwardTransition,
                                                       forwardTransition.ToActivity,
                                                       conditionKeyValuePair,
                                                       out resultType);
            }
            else
            {
                resultType = NextActivityMatchedType.Failed;

                throw new XmlDefinitionException(string.Format("未知的节点类型:{0}", forwardTransition.ToActivity.ActivityType.ToString()));
            }
            return(child);
        }
Exemplo n.º 3
0
        /// <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)
        {
            WfRuntimeManager rmins = new WfRuntimeManagerSendBack();

            rmins.WfExecutedResult = result = new WfExecutedResult();

            var aim = new ActivityInstanceManager();
            var runningActivityInstanceList = aim.GetRunningActivityInstanceList(runner.AppInstanceID, runner.ProcessGUID).ToList();

            SendbackOpertaionTypeEnum sendbackOperation = SendbackOpertaionTypeEnum.Default;

            //当前没有运行状态的节点存在,流程不存在,或者已经结束或取消
            if (runningActivityInstanceList == null || runningActivityInstanceList.Count() == 0)
            {
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Sendback_NotInRunning;
                result.Message       = "当前没有运行状态的节点存在,流程不存在,或者已经结束或取消";

                return(rmins);
            }

            if (runningActivityInstanceList.Count() == 1)       //如果只有1个运行节点
            {
                var runningNode = runningActivityInstanceList[0];

                var activityType = EnumHelper.ParseEnum <ActivityTypeEnum>(runningNode.ActivityType.ToString());
                if (XPDLHelper.IsSimpleComponentNode(activityType) == false)
                {
                    result.Status        = WfExecutedStatus.Exception;
                    result.ExceptionType = WfExceptionType.Sendback_NotTaskNode;
                    result.Message       = "当前节点不是任务类型的节点,无法退回上一步节点!";
                    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);
                }

                sendbackOperation = SendbackOpertaionTypeEnum.Normal;
            }
            else if (runningActivityInstanceList.Count() > 1)
            {
                //有其它非多实例的并行节点,暂时不处理,后期实现该功能
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Sendback_NullOrHasTooMany;
                result.Message       = "有多个可以退回的节点,而且不是多实例节点,此功能暂时不支持!";

                return(rmins);
            }

            //根据不同分支场景,创建不同撤销运行时管理器
            return(CreateRuntimeInstanceSendbackByCase(runningActivityInstanceList, sendbackOperation, runner, ref result));
        }
        /// <summary>
        /// 创建下一步活动的节点
        /// </summary>
        /// <param name="transition">转移</param>
        /// <param name="activity">活动</param>
        /// <returns>下一步节点封装</returns>
        internal static NextActivityComponent CreateNextActivityComponent(TransitionEntity transition,
                                                                          ActivityEntity activity)
        {
            string name = string.Empty;
            NextActivityComponent component = null;

            if (XPDLHelper.IsSimpleComponentNode(activity.ActivityType) == true)           //可流转简单类型节点
            {
                name      = "单一节点";
                component = new NextActivityItem(name, transition, activity);
            }
            else if (XPDLHelper.IsIntermediateEventComponentNode(activity.ActivityType) == true)
            {
                name      = "跨事件节点";
                component = new NextActivityIntermediate(name, transition, activity);
            }
            else if (XPDLHelper.IsGatewayComponentNode(activity.ActivityType) == true)
            {
                if (activity.GatewayDirectionType == GatewayDirectionEnum.AndSplit)
                {
                    name      = "必全选节点";
                    component = new NextActivityGateway(name, transition, activity);
                }
                else if (activity.GatewayDirectionType == GatewayDirectionEnum.AndSplitMI)
                {
                    name      = "并行多实例节点";
                    component = new NextActivityGateway(name, transition, activity);
                }
                else if (activity.GatewayDirectionType == GatewayDirectionEnum.OrSplit ||
                         activity.GatewayDirectionType == GatewayDirectionEnum.OrSplitMI ||
                         activity.GatewayDirectionType == GatewayDirectionEnum.XOrSplit)
                {
                    name      = "或多选节点";
                    component = new NextActivityGateway(name, transition, activity);
                }
                else
                {
                    throw new WfXpdlException(string.Format("无法创建下一步节点列表,不明确的分支类型:{0}",
                                                            activity.GatewayDirectionType.ToString()));
                }
            }
            else if (activity.ActivityType == ActivityTypeEnum.SubProcessNode)
            {
                name      = "子流程节点";
                component = new NextActivityItem(name, transition, activity);
            }
            else
            {
                throw new WfXpdlException(string.Format("无法创建下一步节点列表,不明确的节点类型:{0}",
                                                        activity.ActivityType.ToString()));
            }

            return(component);
        }
Exemplo n.º 5
0
        /// <summary>
        /// 根据Transition,获取下一步节点列表
        /// </summary>
        /// <param name="forwardTransition">转移实体</param>
        /// <param name="conditionKeyValuePair">条件kv对</param>
        /// <param name="session">会话</param>
        /// <param name="resultType">结果类型</param>
        protected NextActivityComponent GetNextActivityListFromGatewayCore(TransitionEntity forwardTransition,
                                                                           IDictionary <string, string> conditionKeyValuePair,
                                                                           IDbSession session,
                                                                           out NextActivityMatchedType resultType)
        {
            NextActivityComponent child = null;

            if (XPDLHelper.IsSimpleComponentNode(forwardTransition.ToActivity.ActivityType) == true)       //可流转简单类型节点
            {
                child      = NextActivityComponentFactory.CreateNextActivityComponent(forwardTransition, forwardTransition.ToActivity);
                resultType = NextActivityMatchedType.Successed;
            }
            else if (forwardTransition.ToActivity.ActivityType == ActivityTypeEnum.GatewayNode)
            {
                child = GetNextActivityListFromGateway(forwardTransition,
                                                       forwardTransition.ToActivity,
                                                       conditionKeyValuePair,
                                                       session,
                                                       out resultType);
            }
            else if (forwardTransition.ToActivity.ActivityType == ActivityTypeEnum.IntermediateNode)
            {
                if (forwardTransition.ToActivity.ActivityTypeDetail.TriggerType == TriggerTypeEnum.Timer)
                {
                    child      = NextActivityComponentFactory.CreateNextActivityComponent(forwardTransition, forwardTransition.ToActivity);
                    resultType = NextActivityMatchedType.Successed;
                }
                else
                {
                    NextActivityScheduleBase activitySchedule = NextActivityScheduleFactory.CreateActivityScheduleIntermediate(this.ProcessModel);
                    child = activitySchedule.GetNextActivityListFromGateway(forwardTransition,
                                                                            forwardTransition.ToActivity,
                                                                            conditionKeyValuePair,
                                                                            session,
                                                                            out resultType);
                }
            }
            else if (forwardTransition.ToActivity.ActivityType == ActivityTypeEnum.ServiceNode)
            {
                NextActivityScheduleBase activitySchedule = NextActivityScheduleFactory.CreateActivityScheduleIntermediate(this.ProcessModel);
                child = activitySchedule.GetNextActivityListFromGateway(forwardTransition,
                                                                        forwardTransition.ToActivity,
                                                                        conditionKeyValuePair,
                                                                        session,
                                                                        out resultType);
            }
            else
            {
                resultType = NextActivityMatchedType.Failed;

                throw new XmlDefinitionException(LocalizeHelper.GetEngineMessage("nextactivityschedulebase.unknownnodetype", forwardTransition.ToActivity.ActivityType.ToString()));
            }
            return(child);
        }
Exemplo n.º 6
0
        /// <summary>
        /// 创建跳转节点(强制拉取跳转方式,后续节点状态可以强制拉取前置节点到当前节点[后续节点])
        /// </summary>
        /// <param name="fromActivity">要拉取的节点</param>
        /// <param name="toActivity">拉取到节点</param>
        /// <returns></returns>
        internal static NextActivityComponent CreateNextActivityComponent(ActivityEntity fromActivity,
                                                                          ActivityEntity toActivity)
        {
            NextActivityComponent component = null;

            if (XPDLHelper.IsSimpleComponentNode(fromActivity.ActivityType) == true)       //可流转简单类型节点
            {
                string name       = "单一节点";
                var    transition = TransitionBuilder.CreateJumpforwardEmptyTransition(fromActivity, toActivity);

                component = new NextActivityItem(name, transition, fromActivity);     //强制拉取跳转类型的transition 为空类型
            }
            else
            {
                throw new ApplicationException(string.Format("不能跳转到其它非任务类型的节点!当前节点:{0}",
                                                             fromActivity.ActivityType));
            }
            return(component);
        }
Exemplo n.º 7
0
        /// <summary>
        /// 创建跳转节点(强制拉取跳转方式,后续节点状态可以强制拉取前置节点到当前节点[后续节点])
        /// </summary>
        /// <param name="fromActivity">要拉取的节点</param>
        /// <param name="toActivity">拉取到节点</param>
        /// <returns>下一步节点封装</returns>
        internal static NextActivityComponent CreateNextActivityComponent(ActivityEntity fromActivity,
                                                                          ActivityEntity toActivity)
        {
            NextActivityComponent component = null;

            if (XPDLHelper.IsSimpleComponentNode(fromActivity.ActivityType) == true)       //可流转简单类型节点
            {
                //单一节点
                string name       = LocalizeHelper.GetEngineMessage("nextactivitycomponentfactory.singlenode");;
                var    transition = CreateJumpforwardEmptyTransition(fromActivity, toActivity);

                component = new NextActivityItem(name, transition, toActivity);     //强制拉取跳转类型的transition 为空类型
            }
            else
            {
                throw new ApplicationException(LocalizeHelper.GetEngineMessage("nextactivitycomponentfactory.CreateNextActivityComponent.jump.error",
                                                                               fromActivity.ActivityType.ToString()));
            }
            return(component);
        }
        /// <summary>
        /// 获取网关节点前的节点
        /// </summary>
        /// <param name="transitionList">转移列表</param>
        /// <param name="toActivityInstanceID">流转到的活动实例ID</param>
        /// <param name="previousActivityInstanceList">前节点实例列表</param>
        private void GetPreviousOfGatewayActivityInstance(IList <TransitionInstanceEntity> transitionList,
                                                          int toActivityInstanceID,
                                                          IList <ActivityInstanceEntity> previousActivityInstanceList)
        {
            var previousTransitionList = transitionList
                                         .Where(o => o.ToActivityInstanceID == toActivityInstanceID)
                                         .ToList();

            var aim = new ActivityInstanceManager();

            foreach (var entity in previousTransitionList)
            {
                var activityType = EnumHelper.ParseEnum <ActivityTypeEnum>(entity.FromActivityType.ToString());
                if (XPDLHelper.IsSimpleComponentNode(activityType) == true)
                {
                    previousActivityInstanceList.Add(aim.GetById(entity.FromActivityInstanceID));
                }
                else if (entity.FromActivityType == (short)ActivityTypeEnum.GatewayNode)
                {
                    GetPreviousOfGatewayActivityInstance(transitionList, entity.FromActivityInstanceID, previousActivityInstanceList);
                }
            }
        }
Exemplo n.º 9
0
        /// <summary>
        /// 创建下一步活动的节点
        /// </summary>
        /// <param name="transition">转移</param>
        /// <param name="activity">活动</param>
        /// <returns>下一步节点封装</returns>
        internal static NextActivityComponent CreateNextActivityComponent(TransitionEntity transition,
                                                                          ActivityEntity activity)
        {
            string name = string.Empty;
            NextActivityComponent component = null;

            if (XPDLHelper.IsSimpleComponentNode(activity.ActivityType) == true)           //可流转简单类型节点
            {
                //单一节点
                name      = LocalizeHelper.GetEngineMessage("nextactivitycomponentfactory.singlenode");
                component = new NextActivityItem(name, transition, activity);
            }
            else if (XPDLHelper.IsIntermediateEventComponentNode(activity.ActivityType) == true)
            {
                //跨事件节点
                name      = LocalizeHelper.GetEngineMessage("nextactivitycomponentfactory.intermediatenode");
                component = new NextActivityIntermediate(name, transition, activity);
            }
            else if (XPDLHelper.IsGatewayComponentNode(activity.ActivityType) == true)
            {
                if (activity.GatewayDirectionType == GatewayDirectionEnum.AndSplit ||
                    activity.GatewayDirectionType == GatewayDirectionEnum.AndJoin)
                {
                    //必全选节点
                    name = LocalizeHelper.GetEngineMessage("nextactivitycomponentfactory.mandatorycheckall");
                }
                else if (activity.GatewayDirectionType == GatewayDirectionEnum.AndSplitMI ||
                         activity.GatewayDirectionType == GatewayDirectionEnum.AndJoinMI)
                {
                    //并行多实例节点
                    name = LocalizeHelper.GetEngineMessage("nextactivitycomponentfactory.parallelmultipleinstance");
                }
                else if (activity.GatewayDirectionType == GatewayDirectionEnum.OrSplit ||
                         activity.GatewayDirectionType == GatewayDirectionEnum.OrJoin)
                {
                    //或多选节点
                    name = LocalizeHelper.GetEngineMessage("nextactivitycomponentfactory.orsplitorjoin");
                }
                else if (activity.GatewayDirectionType == GatewayDirectionEnum.XOrSplit ||
                         activity.GatewayDirectionType == GatewayDirectionEnum.XOrJoin)
                {
                    //异或节点
                    name = LocalizeHelper.GetEngineMessage("nextactivitycomponentfactory.xor");
                }
                else if (activity.GatewayDirectionType == GatewayDirectionEnum.EOrJoin)
                {
                    //增强合并多选节点
                    name = LocalizeHelper.GetEngineMessage("nextactivitycomponentfactory.eorjoin");
                }
                else
                {
                    throw new WfXpdlException(LocalizeHelper.GetEngineMessage("nextactivitycomponentfactory.CreateNextActivityComponent.gateway.error",
                                                                              activity.GatewayDirectionType.ToString()));
                }
                component = new NextActivityGateway(name, transition, activity);
            }
            else if (activity.ActivityType == ActivityTypeEnum.SubProcessNode)
            {
                //子流程节点
                name      = LocalizeHelper.GetEngineMessage("nextactivitycomponentfactory.subprocess");
                component = new NextActivityItem(name, transition, activity);
            }
            else
            {
                throw new WfXpdlException(LocalizeHelper.GetEngineMessage("nextactivitycomponentfactory.CreateNextActivityComponent.error",
                                                                          activity.ActivityType.ToString()));
            }

            return(component);
        }
Exemplo n.º 10
0
        /// <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)
        {
            WfRuntimeManager rmins = new WfRuntimeManagerSendBack();

            rmins.WfExecutedResult = result = new WfExecutedResult();

            var aim = new ActivityInstanceManager();
            var runningActivityInstanceList = aim.GetRunningActivityInstanceList(runner.AppInstanceID, runner.ProcessGUID).ToList();

            SendbackOperationTypeEnum sendbackOperation = SendbackOperationTypeEnum.Default;

            //当前没有运行状态的节点存在,流程不存在,或者已经结束或取消
            if (runningActivityInstanceList == null || runningActivityInstanceList.Count() == 0)
            {
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Sendback_NotInRunning;
                result.Message       = "当前没有运行状态的节点存在,流程不存在,或者已经结束或取消";

                return(rmins);
            }

            if (runningActivityInstanceList.Count() == 1)       //如果只有1个运行节点
            {
                var runningNode = runningActivityInstanceList[0];

                var activityType = EnumHelper.ParseEnum <ActivityTypeEnum>(runningNode.ActivityType.ToString());
                if (XPDLHelper.IsSimpleComponentNode(activityType) == false)
                {
                    result.Status        = WfExecutedStatus.Exception;
                    result.ExceptionType = WfExceptionType.Sendback_NotTaskNode;
                    result.Message       = "当前节点不是任务类型的节点,无法退回上一步节点!";
                    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);
                }

                //判断当前节点是否是多实例节点
                if (runningNode.MIHostActivityInstanceID != null)
                {
                    if (runningNode.CompleteOrder == 1)
                    {
                        //只有串行模式下有CompleteOrder的值为 1
                        //串行模式多实例的第一个执行节点,此时可退回到上一步
                        sendbackOperation = SendbackOperationTypeEnum.MISFirstOneIsRunning;
                    }
                    else if (runningNode.CompleteOrder > 1)
                    {
                        //已经是中间节点,只能退回到上一步多实例子节点
                        sendbackOperation = SendbackOperationTypeEnum.MISOneIsRunning;
                    }
                    else if (runningNode.CompleteOrder == -1)
                    {
                        sendbackOperation = SendbackOperationTypeEnum.MIPOneIsRunning;
                    }
                }
                else
                {
                    sendbackOperation = SendbackOperationTypeEnum.Normal;
                }
            }
            else if (runningActivityInstanceList.Count() > 1)
            {
                var firstActivityInstance = runningActivityInstanceList[0];
                if (firstActivityInstance.MIHostActivityInstanceID != null)
                {
                    //判断多实例主节点下的子节点是否都处于待办状态,如果是,则可以退回到上一步
                    bool isAllInReadyState = true;
                    var  allChildNodeList  = aim.GetActivityMultipleInstance(firstActivityInstance.MIHostActivityInstanceID.Value,
                                                                             firstActivityInstance.ProcessInstanceID);

                    int runningCount = 0;
                    foreach (var ai in allChildNodeList)
                    {
                        if (ai.ActivityState != (short)ActivityStateEnum.Ready &&
                            ai.ActivityState != (short)ActivityStateEnum.Suspended)
                        {
                            if (ai.ActivityState == (short)ActivityStateEnum.Running)
                            {
                                runningCount++;
                            }
                            else
                            {
                                isAllInReadyState = false;
                                break;
                            }
                        }
                    }
                    if (runningCount > 1)
                    {
                        isAllInReadyState = false;
                    }

                    if (isAllInReadyState == false)
                    {
                        //部分子节点有完成的
                        sendbackOperation = SendbackOperationTypeEnum.MIPSeveralIsRunning;
                    }
                    else if (runningCount == 1)
                    {
                        if (firstActivityInstance.CompleteOrder == -1)
                        {
                            sendbackOperation = SendbackOperationTypeEnum.MIPOneIsRunning;
                        }
                        else
                        {
                            //第一个子节点处于待办状态
                            sendbackOperation = SendbackOperationTypeEnum.MISFirstOneIsRunning;
                        }
                    }
                    else if (isAllInReadyState)
                    {
                        //子节点全部处于待办状态
                        sendbackOperation = SendbackOperationTypeEnum.MIPAllIsInReadyState;
                    }
                }
                else
                {
                    //有其它非多实例的并行节点,暂时不处理,后期实现该功能
                    result.Status        = WfExecutedStatus.Exception;
                    result.ExceptionType = WfExceptionType.Sendback_NullOrHasTooMany;
                    result.Message       = "有多个可以退回的节点,而且不是多实例节点,此功能暂时不支持!";

                    return(rmins);
                }
            }

            //根据不同分支场景,创建不同撤销运行时管理器
            return(CreateRuntimeInstanceSendbackByCase(runningActivityInstanceList, sendbackOperation, runner, ref result));
        }
Exemplo n.º 11
0
        /// <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();

            var sendbackOperation = SendbackOperationTypeEnum.Default;

            //先查找当前用户正在办理的运行节点
            var aim         = new ActivityInstanceManager();
            var runningNode = runner.TaskID != null?aim.GetByTask(runner.TaskID.Value)
                                  : aim.GetRunningNode(runner);

            if (runningNode == null)
            {
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Sendback_NotInRunning;
                result.Message       = "当前没有运行状态的节点存在,流程不存在,或者已经结束或取消";

                return(rmins);
            }

            if (aim.IsMineTask(runningNode, runner.UserID) == false)
            {
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Sendback_NotMineTask;
                result.Message       = "不是当前登录用户的任务,无法退回!";
                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       = "当前节点不是任务类型的节点,无法退回上一步节点!";
                return(rmins);
            }

            //获取当前运行主节点信息
            var currentNode = runningNode;

            if (runningNode.MIHostActivityInstanceID != null)
            {
                currentNode = aim.GetById(runningNode.MIHostActivityInstanceID.Value);
            }

            //获取上一步流转节点信息,可能经过And, Or等路由节点
            //判断前置步骤是否经过Gateway节点
            var hasGatewayPassed     = false;
            var processInstance      = (new ProcessInstanceManager()).GetById(runningNode.ProcessInstanceID);
            var processModel         = ProcessModelFactory.Create(processInstance.ProcessGUID, processInstance.Version);
            var previousActivityList = aim.GetPreviousActivityList(runningNode, processModel, out hasGatewayPassed);

            if (previousActivityList == null ||
                previousActivityList.Count == 0)
            {
                result.Status        = WfExecutedStatus.Exception;
                result.ExceptionType = WfExceptionType.Sendback_IsNull;
                result.Message       = "当前没有可以退回的节点,请检查流程数据!";

                return(null);
            }

            //多个退回节点存在的有效退回判断
            IList <ActivityEntity> sendbackPreviousActivityList = new List <ActivityEntity>();

            if (previousActivityList.Count > 1)
            {
                if (runner.NextActivityPerformers == null ||
                    runner.NextActivityPerformers.Count == 0)
                {
                    result.Status        = WfExecutedStatus.Exception;
                    result.ExceptionType = WfExceptionType.Sendback_IsTooManyPrevious;
                    result.Message       = "当前有多个可以退回的节点,无法选择,请明确指定!";

                    return(rmins);
                }

                //明确指定的退回节点,需要判断处理
                var isInvalidSendBack = IsInvalidStepsInPrevousActivityList(previousActivityList,
                                                                            runner.NextActivityPerformers,
                                                                            sendbackPreviousActivityList);

                if (isInvalidSendBack == true)
                {
                    result.Status        = WfExecutedStatus.Exception;
                    result.ExceptionType = WfExceptionType.Sendback_NotContainedInPreviousOrStartNode;
                    result.Message       = "指定的退回节点不在上一步节点运行列表中,或者上一步是开始节点,无法退回!";

                    return(rmins);
                }
            }
            else
            {
                //只有一个要退回去的节点
                sendbackPreviousActivityList.Add(previousActivityList[0]);
            }

            //判断当前节点是否是多实例节点
            if (runningNode.MIHostActivityInstanceID != null)
            {
                if (runningNode.CompleteOrder == 1)
                {
                    //只有串行模式下有CompleteOrder的值为 1
                    //串行模式多实例的第一个执行节点,此时可退回到上一步
                    sendbackOperation = SendbackOperationTypeEnum.MISFirstOneIsRunning;
                }
                else if (runningNode.CompleteOrder > 1)
                {
                    //已经是中间节点,只能退回到上一步多实例子节点
                    sendbackOperation = SendbackOperationTypeEnum.MISOneIsRunning;
                }
                else if (runningNode.CompleteOrder == -1)
                {
                    sendbackOperation = SendbackOperationTypeEnum.MIPOneIsRunning;
                }
            }

            if (hasGatewayPassed == true)
            {
                sendbackOperation = SendbackOperationTypeEnum.GatewayFollowedByParalleledNodes;
            }
            else
            {
                sendbackOperation = SendbackOperationTypeEnum.Normal;
            }

            //根据不同分支场景,创建不同撤销运行时管理器
            return(CreateRuntimeInstanceSendbackByCase(runningNode, processModel, processInstance,
                                                       sendbackPreviousActivityList, hasGatewayPassed, sendbackOperation, runner, ref result));
        }
        /// <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);
        }