internal override void ExecuteInstanceImp(IDbSession session)
{
//创建新任务节点
var backMostPreviouslyActivityInstanceID = GetBackwardMostPreviouslyActivityInstanceID();
var nodeMediatorBackward = new NodeMediatorBackward(base.BackwardContext, session);
nodeMediatorBackward.CreateBackwardActivityTaskTransitionInstance(base.BackwardContext.ProcessInstance,
base.BackwardContext.BackwardFromActivityInstance,
BackwardTypeEnum.Withdrawed,
backMostPreviouslyActivityInstanceID,
base.BackwardContext.BackwardToTargetTransitionGUID,
TransitionTypeEnum.Withdrawed,
TransitionFlyingTypeEnum.NotFlying,
base.ActivityResource,
session);
//更新撤销节点的状态（从准备状态更新为撤销状态）
var aim = new ActivityInstanceManager();
aim.Withdraw(base.BackwardContext.BackwardFromActivityInstance.ID,
base.ActivityResource.AppRunner, session);
//构造回调函数需要的数据
WfExecutedResult result = base.WfExecutedResult;
result.BackwardTaskReciever = base.BackwardContext.BackwardTaskReciever;
result.Status = WfExecutedStatus.Success;
}
internal override void ExecuteInstanceImp(IDbSession session)
{
WfExecutedResult result = base.WfExecutedResult;
//回跳类型的处理
if (base.IsBackward == true)
{
//创建新任务节点
var backMostPreviouslyActivityInstanceID = GetBackwardMostPreviouslyActivityInstanceID();
var nodeMediatorBackward = new NodeMediatorBackward(base.BackwardContext, session);
nodeMediatorBackward.CreateBackwardActivityTaskTransitionInstance(base.BackwardContext.ProcessInstance,
base.BackwardContext.BackwardFromActivityInstance,
BackwardTypeEnum.Sendback,
backMostPreviouslyActivityInstanceID,
base.BackwardContext.BackwardToTargetTransitionGUID,
TransitionTypeEnum.Sendback,
TransitionFlyingTypeEnum.NotFlying,
base.ActivityResource,
session);
//更新当前办理节点的状态（从准备或运行状态更新为退回状态）
var aim = new ActivityInstanceManager();
aim.SendBack(base.BackwardContext.BackwardFromActivityInstance.ID,
base.ActivityResource.AppRunner,
session);
//构造回调函数需要的数据
result.BackwardTaskReciever = base.BackwardContext.BackwardTaskReciever;
result.Status = WfExecutedStatus.Success;
}
else
{
var jumpActivityGUID = base.AppRunner.NextActivityPerformers.First().Key;
var jumpforwardActivity = base.ProcessModel.GetActivity(jumpActivityGUID);
var proecessInstance = (new ProcessInstanceManager()).GetById(base.RunningActivityInstance.ProcessInstanceID);
var jumpforwardExecutionContext = ActivityForwardContext.CreateJumpforwardContext(jumpforwardActivity,
base.ProcessModel, proecessInstance, base.ActivityResource);
NodeMediator mediator = NodeMediatorFactory.CreateNodeMediator(jumpforwardExecutionContext, session);
mediator.Linker.FromActivityInstance = base.RunningActivityInstance;
mediator.Linker.ToActivity = jumpforwardActivity;
mediator.ExecuteWorkItem();
result.Status = WfExecutedStatus.Success;
result.Message = mediator.GetNodeMediatedMessage();
}
}
/// <summary>
/// 获取一个流程实例下的所有活动实例
/// </summary>
/// <param name="processInstanceID"></param>
/// <returns></returns>
public IList<ActivityInstanceEntity> GetActivityInstances(int processInstanceID)
{
var aim = new ActivityInstanceManager();
var session = SessionFactory.CreateSession();
try
{
return aim.GetActivityInstances(processInstanceID, session);
}
catch
{
throw;
}
finally
{
session.Dispose();
}
}
/// <summary>
/// 创建运行时实例
/// </summary>
/// <param name="appName"></param>
/// <param name="appInstanceID"></param>
/// <param name="processGUID"></param>
/// <param name="userID"></param>
/// <param name="userName"></param>
/// <param name="nextActivityPerformers"></param>
/// <returns></returns>
public static WfRuntimeManager CreateRuntimeInstanceAppRunning(
WfAppRunner runner,
ref WfExecutedResult result)
{
//检查传人参数是否有效
var rmins = new WfRuntimeManagerAppRunning();
rmins.WfExecutedResult = result = new WfExecutedResult();
if (string.IsNullOrEmpty(runner.AppName)
|| String.IsNullOrEmpty(runner.AppInstanceID)
|| runner.ProcessGUID == null)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.RunApp_ErrorArguments;
result.Message = "方法参数错误，无法运行流程！";
return rmins;
}
//传递runner变量
rmins.AppRunner = runner;
var aim = new ActivityInstanceManager();
TaskViewEntity taskView = null;
var runningNode = aim.GetRunningNodeOfMine(runner, out taskView);
//判断是否是当前登录用户的任务
if (runningNode.AssignedToUsers.Contains(runner.UserID.ToString()) == false)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.RunApp_HasNoTask;
result.Message = "当前没有登录用户要办理的任务，无法运行流程！";
return rmins;
}
var processModel = new ProcessModel(runningNode.ProcessGUID);
var activityResource = new ActivityResource(runner, runner.NextActivityPerformers, runner.Conditions);
var tm = new TaskManager();
rmins.TaskView = taskView;
rmins.RunningActivityInstance = runningNode;
rmins.ProcessModel = processModel;
rmins.ActivityResource = activityResource;
return rmins;
}
/// <summary>
/// 多实例情况下（会签和加签）撤销处理
/// </summary>
/// <param name="session"></param>
internal override void ExecuteInstanceImp(IDbSession session)
{
var runningNode = BackwardContext.BackwardFromActivityInstance;
//创建撤销到上一步的节点记录
var nodeMediatorBackward = new NodeMediatorBackward(base.BackwardContext, session);
nodeMediatorBackward.CreateBackwardActivityTaskOfInnerMultipleInstance(
base.BackwardContext.ProcessInstance,
base.BackwardContext.BackwardToTaskActivityInstance,
BackwardTypeEnum.WithdrawedOfMI,
base.BackwardContext.BackwardFromActivityInstance.ID,
base.ActivityResource,
session);
//置当前节点为撤销状态
var aim = new ActivityInstanceManager();
aim.Withdraw(runningNode.ID, base.ActivityResource.AppRunner, session);
//创建新的一条待办状态的记录，用于下次执行
var newSuspendNode = aim.CreateActivityInstanceObject(runningNode);
newSuspendNode.ActivityState = (short)ActivityStateEnum.Suspended;
newSuspendNode.MIHostActivityInstanceID = runningNode.MIHostActivityInstanceID;
newSuspendNode.CompleteOrder = runningNode.CompleteOrder;
newSuspendNode.ComplexType = runningNode.ComplexType;
newSuspendNode.SignForwardType = runningNode.SignForwardType;
newSuspendNode.AssignedToUserIDs = runningNode.AssignedToUserIDs;
newSuspendNode.AssignedToUserNames = runningNode.AssignedToUserNames;
aim.Insert(newSuspendNode, session);
//同时为此活动实例，创建新的任务
var tm = new TaskManager();
tm.Renew(base.BackwardContext.BackwardFromActivityInstance, newSuspendNode, base.AppRunner, session);
//构造回调函数需要的数据
WfExecutedResult result = base.WfExecutedResult;
result.BackwardTaskReciever = base.BackwardContext.BackwardTaskReciever;
result.Status = WfExecutedStatus.Success;
}
/// <summary>
/// 撤销操作
/// 包括：
/// 1) 正常流转
/// 2) 多实例节点流转
/// </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 CreateRuntimeInstanceWithdraw(WfAppRunner runner,
ref WfExecutedResult result)
{
WfRuntimeManager rmins = null;
//获取当前运行节点信息
var aim = new ActivityInstanceManager();
var runningNode = aim.GetRunningNode(runner);
var processInstance = (new ProcessInstanceManager()).GetById(runningNode.ProcessInstanceID);
var processModel = (new ProcessModel(processInstance.ProcessGUID, processInstance.Version));
if ((runningNode == null) || (runningNode.ActivityState != (short)ActivityStateEnum.Ready))
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Withdraw_NotInReady;
result.Message = string.Format("要撤销的节点不在【待办】状态，已经无法撤销到上一步，当前状态: {0}",
runningNode.ActivityState);//，节点状态：{0} runningNode.ActivityState 为空报错20150514
return rmins;
}
//判断是否是多实例节点
if (runningNode.MIHostActivityInstanceID != null
&& runningNode.MIHostActivityInstanceID.Value > 0)
{
//获取同一会签主节点下的前置节点信息
var previousActivityInstance = aim.GetPreviousOfMultipleInstanceNode(
runningNode.MIHostActivityInstanceID.Value,
runningNode.ID, runningNode.CompleteOrder.Value);
if (previousActivityInstance != null
&& previousActivityInstance.EndedByUserID == runner.UserID)
{
//返回多实例节点下的处理模式
rmins = new WfRuntimeManagerWithdrawMI();
rmins.WfExecutedResult = result = new WfExecutedResult();
rmins.BackwardContext.ProcessInstance = processInstance;
rmins.BackwardContext.BackwardToTaskActivity = processModel.GetActivity(previousActivityInstance.ActivityGUID);
rmins.BackwardContext.BackwardToTaskActivityInstance = previousActivityInstance;
rmins.BackwardContext.BackwardFromActivityInstance = runningNode; //准备状态的接收节点
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,
runner.UserID,
runner.UserName);
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 WfRuntimeManagerWithdraw();
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();
bool hasGatewayNode = false;
var lastActivityInstanceList = tim.GetPreviousActivityInstance(runningNode, false, out hasGatewayNode).ToList();
if (lastActivityInstanceList == null || lastActivityInstanceList.Count > 1)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Withdraw_HasTooMany;
result.Message = "当前没有可以撤销回去的节点，或者有多个可以撤销回去的节点，无法选择！";
return rmins;
}
TransitionInstanceEntity lastTaskTransitionInstance = null;
if (hasGatewayNode == false)
{
lastTaskTransitionInstance = tim.GetLastTaskTransition(runner.AppName,
runner.AppInstanceID, runner.ProcessGUID);
}
var withdrawActivityInstance = lastActivityInstanceList[0];
if (withdrawActivityInstance.EndedByUserID != runner.UserID)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Withdraw_NotCreatedByMine;
result.Message = string.Format("上一步节点的任务办理人跟当前登录用户不一致，无法撤销回上一步！节点办理人：{0}",
withdrawActivityInstance.EndedByUserName);
return rmins;
}
if (withdrawActivityInstance.ActivityType == (short)ActivityTypeEnum.EndNode)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Withdraw_PreviousIsEndNode;
result.Message = "上一步是结束节点，无法撤销！";
return rmins;
}
if (withdrawActivityInstance.ComplexType != null
&& (withdrawActivityInstance.ComplexType.Value == (short)ComplexTypeEnum.SignTogether
|| withdrawActivityInstance.ComplexType.Value == (short) ComplexTypeEnum.SignForward))
{
//上一步节点是会签（或加签）节点，当前节点是会签节点的下一节点
//会签节点是里程碑节点，不允许可以被撤销，即会签节点的最后一个办理人不能撤销已经完成的会签任务
//但是可以做【退回】处理，退回时整个会签节点重新执行，这样避免会签任务的单个人随意操作。
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Withdraw_SignTogetherNotAllowed;
result.Message = "会签(或加签)已经发送出去（里程碑节点），不能撤销；但可由下一步操作人退回，重新开始所有人的会签(或加签)！";
return rmins;
}
//准备撤销节点的相关信息
rmins.ProcessModel = processModel;
rmins.AppRunner.ProcessGUID = runner.ProcessGUID;
rmins.BackwardContext.ProcessInstance = processInstance;
rmins.BackwardContext.BackwardToTargetTransitionGUID =
hasGatewayNode == false ? lastTaskTransitionInstance.TransitionGUID : String.Empty;
rmins.BackwardContext.BackwardToTaskActivity = processModel.GetActivity(withdrawActivityInstance.ActivityGUID);
rmins.BackwardContext.BackwardToTaskActivityInstance = withdrawActivityInstance;
rmins.BackwardContext.BackwardFromActivity = processModel.GetActivity(runningNode.ActivityGUID);
rmins.BackwardContext.BackwardFromActivityInstance = runningNode; //准备状态的接收节点
rmins.BackwardContext.BackwardTaskReciever = WfBackwardTaskReciever.Instance(
withdrawActivityInstance.ActivityName,
withdrawActivityInstance.EndedByUserID,
withdrawActivityInstance.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(
withdrawActivityInstance.ActivityGUID,
runner.UserID,
runner.UserName);
rmins.ActivityResource = new ActivityResource(runner, rmins.AppRunner.NextActivityPerformers);
return rmins;
}
/// <summary>
/// 创建节点对象
/// </summary>
/// <param name="processInstance">流程实例</param>
protected ActivityInstanceEntity CreateActivityInstanceObject(ActivityEntity activity,
ProcessInstanceEntity processInstance,
WfAppRunner runner)
{
ActivityInstanceManager aim = new ActivityInstanceManager();
this.GatewayActivityInstance = aim.CreateActivityInstanceObject(processInstance.AppName,
processInstance.AppInstanceID,
processInstance.ID,
activity,
runner);
return this.GatewayActivityInstance;
}
/// <summary>
/// 获取活动实例数据
/// </summary>
/// <param name="activityInstanceID"></param>
/// <returns></returns>
public ActivityInstanceEntity GetActivityInstance(int activityInstanceID)
{
var aim = new ActivityInstanceManager();
var instance = aim.GetById(activityInstanceID);
return instance;
}
/// <summary>
/// 获取已经完成的节点
/// </summary>
/// <param name="taskID"></param>
/// <returns></returns>
public IList<NodeImage> GetActivityInstanceCompleted(int taskID)
{
IList<NodeImage> imageList = new List<NodeImage>();
var tm = new TaskManager();
var task = tm.GetTaskView(taskID);
var am = new ActivityInstanceManager();
var list = am.GetCompletedActivityInstanceList(task.AppInstanceID, task.ProcessGUID);
foreach (ActivityInstanceEntity a in list)
{
imageList.Add(new NodeImage
{
ID = a.ID,
ActivityName = a.ActivityName
});
}
return imageList;
}
/// <summary>
/// 获取流程当前运行节点信息
/// </summary>
/// <param name="runner"></param>
/// <returns></returns>
public ActivityInstanceEntity GetRunningNode(WfAppRunner runner)
{
var aim = new ActivityInstanceManager();
var entity = aim.GetRunningNode(runner);
return entity;
}
/// <summary>
/// 判断是否是我的任务
/// </summary>
/// <param name="entity"></param>
/// <param name="userID"></param>
/// <returns></returns>
public bool IsMineTask(ActivityInstanceEntity entity, string userID)
{
var aim = new ActivityInstanceManager();
bool isMine = aim.IsMineTask(entity, userID);
return isMine;
}
/// <summary>
/// 获取流程当前运行节点信息
/// </summary>
/// <param name="appInstanceID"></param>
/// <param name="processGUID"></param>
/// <returns></returns>
internal ActivityInstanceEntity GetRunningNodeOfMine(WfAppRunner runner)
{
var appInstanceID = runner.AppInstanceID;
var processGUID = runner.ProcessGUID;
var taskID = runner.TaskID;
//如果流程在运行状态，则返回运行时信息
TaskViewEntity task = null;
var aim = new ActivityInstanceManager();
var entity = GetRunningNodeOfMine(runner, out task);
return entity;
}
internal ActivityInstanceEntity GetRunningNodeOfMine(WfAppRunner runner, out TaskViewEntity taskView)
{
var appInstanceID = runner.AppInstanceID;
var processGUID = runner.ProcessGUID;
var taskID = runner.TaskID;
taskView = null;
ActivityInstanceEntity activityInstance = null;
//如果流程在运行状态，则返回运行时信息
var tm = new TaskManager();
var aim = new ActivityInstanceManager();
var activityList = aim.GetRunningActivityInstanceList(runner).ToList();
if ((activityList != null) && (activityList.Count == 1))
{
activityInstance = activityList[0];
taskView = tm.GetTaskOfMine(activityInstance.ID, runner.UserID);
}
else if (activityList.Count > 0)
{
if (runner.TaskID != null && runner.TaskID.Value != 0)
{
taskView = tm.GetTaskView(taskID.Value);
foreach (var ai in activityList)
{
if (ai.ID == taskView.ActivityInstanceID)
{
activityInstance = ai;
break;
}
}
}
else
{
//当前流程运行节点不唯一
var e = new WorkflowException("当前流程有多个运行节点，但没有TaskID传入，状态异常！");
LogManager.RecordLog("获取当前运行节点信息异常", LogEventType.Exception, LogPriority.Normal, null, e);
throw e;
}
}
else
{
//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
var e = new WorkflowException("当前流程没有运行节点，状态异常！");
LogManager.RecordLog("获取当前运行节点信息异常", LogEventType.Exception, LogPriority.Normal, null, e);
throw e;
}
return activityInstance;
}
/// <summary>
/// 读取节点的上一步节点信息
/// </summary>
/// <param name="runningNode">当前节点</param>
/// <param name="hasPassedGatewayNode">是否经由路由节点</param>
/// <returns></returns>
internal IList<ActivityInstanceEntity> GetPreviousActivityInstance(ActivityInstanceEntity runningNode,
bool isSendback,
out bool hasPassedGatewayNode)
{
hasPassedGatewayNode = false;
var transitionList = GetTransitionInstanceList(runningNode.AppInstanceID,
runningNode.ProcessGUID,
runningNode.ProcessInstanceID).ToList();
var backSrcActivityInstanceId = 0;
if (isSendback == true && runningNode.BackSrcActivityInstanceID != null)
{
//节点时曾经发生退回的节点
backSrcActivityInstanceId = runningNode.BackSrcActivityInstanceID.Value;
}
else
backSrcActivityInstanceId = runningNode.ID;
var aim = new ActivityInstanceManager();
var runningTransitionList = transitionList
.Where(o => o.ToActivityInstanceID == backSrcActivityInstanceId)
.ToList();
IList<ActivityInstanceEntity> previousActivityInstanceList = new List<ActivityInstanceEntity>();
foreach (var entity in runningTransitionList)
{
//如果是逻辑节点，则继续查找
if (entity.FromActivityType == (short)ActivityTypeEnum.GatewayNode)
{
GetPreviousOfGatewayActivityInstance(transitionList, entity.FromActivityInstanceID, previousActivityInstanceList);
hasPassedGatewayNode = true;
}
else
{
previousActivityInstanceList.Add(aim.GetById(entity.FromActivityInstanceID));
}
}
return previousActivityInstanceList;
}
/// <summary>
/// 加签操作
/// </summary>
/// <param name="runner"></param>
/// <param name="result"></param>
/// <returns></returns>
public static WfRuntimeManager CreateRuntimeInstanceSignForward(WfAppRunner runner,
ref WfExecutedResult result)
{
var rmins = new WfRuntimeManagerSignForward();
rmins.WfExecutedResult = result = new WfExecutedResult();
if (string.IsNullOrEmpty(runner.AppName)
|| String.IsNullOrEmpty(runner.AppInstanceID)
|| runner.ProcessGUID == null
|| runner.NextActivityPerformers == null)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.SignForward_ErrorArguments;
result.Message = "方法参数错误，无法加签流程！";
return rmins;
}
if (runner.NextActivityPerformers.Count() == 0)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.SignForward_NoneSigners;
result.Message = "没有添加要发送加签的人员";
return rmins;
}
rmins.AppRunner = runner;
var aim = new ActivityInstanceManager();
TaskViewEntity taskView = null;
var runningNode = aim.GetRunningNode(runner, out taskView);
//判断是否是当前登录用户的任务
if (runningNode.AssignedToUserIDs.Contains(runner.UserID.ToString()) == false)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.RunApp_HasNoTask;
result.Message = "当前没有登录用户要办理的任务，无法运行流程！";
return rmins;
}
var processModel = new ProcessModel(taskView.ProcessGUID, taskView.Version);
var activityResource = new ActivityResource(runner, runner.NextActivityPerformers, runner.Conditions, runner.DynamicVariables);
var tm = new TaskManager();
rmins.TaskView = taskView;
rmins.RunningActivityInstance = runningNode;
rmins.ProcessModel = processModel;
rmins.ActivityResource = activityResource;
return rmins;
}
/// <summary>
/// 撤销操作
/// </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 CreateRuntimeInstanceWithdraw(WfAppRunner runner,
ref WfExecutedResult result)
{
//获取当前运行节点信息
var rmins = new WfRuntimeManagerWithdraw();
rmins.WfExecutedResult = result = new WfExecutedResult();
var aim = new ActivityInstanceManager();
var runningNode = aim.GetRunningNodeOfMine(runner);
if ((runningNode == null) || (runningNode.ActivityState != (short)ActivityStateEnum.Ready))
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Withdraw_NotInReady;
result.Message = string.Format("要撤销的节点不在【待办】状态，已经无法撤销到上一步，节点状态：{0}",
runningNode.ActivityState);
}
//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();
bool hasGatewayNode = false;
var lastActivityInstanceList = tim.GetPreviousActivityInstance(runningNode, false, out hasGatewayNode).ToList();
if (lastActivityInstanceList == null || lastActivityInstanceList.Count > 1)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Withdraw_HasTooMany;
result.Message = "当前没有可以撤销回去的节点，或者有多个可以撤销回去的节点，无法选择！";
return rmins;
}
TransitionInstanceEntity lastTaskTransitionInstance = null;
if (hasGatewayNode == false)
{
lastTaskTransitionInstance = tim.GetLastTaskTransition(runner.AppName,
runner.AppInstanceID, runner.ProcessGUID);
}
var withdrawActivityInstance = lastActivityInstanceList[0];
if (withdrawActivityInstance.EndedByUserID != runner.UserID)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Withdraw_NotCreatedByMine;
result.Message = string.Format("上一步节点的任务办理人跟当前登录用户不一致，无法撤销回上一步！节点办理人：{0}",
withdrawActivityInstance.EndedByUserName);
return rmins;
}
if (withdrawActivityInstance.ActivityType == (short)ActivityTypeEnum.EndNode)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Withdraw_PreviousIsEndNode;
result.Message = "上一步是结束节点，无法撤销！";
return rmins;
}
//准备撤销节点的相关信息
var processModel = (new ProcessModel(runner.ProcessGUID));
rmins.ProcessModel = processModel;
rmins.AppRunner.ProcessGUID = runner.ProcessGUID;
rmins.BackwardContext.ProcessInstance = (new ProcessInstanceManager()).GetById(runningNode.ProcessInstanceID);
rmins.BackwardContext.BackwardToTargetTransitionGUID =
hasGatewayNode == false ? lastTaskTransitionInstance.TransitionGUID : String.Empty;
rmins.BackwardContext.BackwardToTaskActivity = processModel.GetActivity(withdrawActivityInstance.ActivityGUID);
rmins.BackwardContext.BackwardToTaskActivityInstance = withdrawActivityInstance;
rmins.BackwardContext.BackwardFromActivity = processModel.GetActivity(runningNode.ActivityGUID);
rmins.BackwardContext.BackwardFromActivityInstance = runningNode; //准备状态的接收节点
rmins.BackwardContext.BackwardTaskReciever = WfBackwardTaskReciever.Instance(
withdrawActivityInstance.ActivityName,
withdrawActivityInstance.EndedByUserID,
withdrawActivityInstance.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(
withdrawActivityInstance.ActivityGUID,
runner.UserID,
runner.UserName);
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)
{
//检查当前运行节点信息
var rmins = new WfRuntimeManagerSendBack();
rmins.WfExecutedResult = result = new WfExecutedResult();
var aim = new ActivityInstanceManager();
var runningNode = aim.GetRunningNodeOfMine(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 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;
}
var processModel = (new ProcessModel(runner.ProcessGUID));
rmins.ProcessModel = processModel;
rmins.BackwardContext.ProcessInstance = (new ProcessInstanceManager()).GetById(lastTaskTransitionInstance.ProcessInstanceID);
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>
/// 流程返签，先检查约束条件，然后调用wfruntimeinstance执行
/// </summary>
/// <param name="appName"></param>
/// <param name="appInstanceID"></param>
/// <param name="processGUID"></param>
/// <param name="userID"></param>
/// <param name="userName"></param>
/// <returns></returns>
public static WfRuntimeManager CreateRuntimeInstanceReverse(WfAppRunner runner,
ref WfExecutedResult result)
{
var rmins = new WfRuntimeManagerReverse();
rmins.WfExecutedResult = result = new WfExecutedResult();
var pim = new ProcessInstanceManager();
var processInstance = pim.GetProcessInstanceLatest(runner.AppName, runner.AppInstanceID, runner.ProcessGUID);
if (processInstance == null || processInstance.ProcessState != (short)ProcessStateEnum.Completed)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Reverse_NotInCompleted;
result.Message = string.Format("当前应用:{0}，实例ID：{1}, 没有完成的流程实例，无法让流程重新运行！",
runner.AppName, runner.AppInstanceID);
return rmins;
}
var tim = new TransitionInstanceManager();
var endTransitionInstance = tim.GetEndTransition(runner.AppName, runner.AppInstanceID, runner.ProcessGUID);
var processModel = new ProcessModel(runner.ProcessGUID);
var endActivity = processModel.GetActivity(endTransitionInstance.ToActivityGUID);
var aim = new ActivityInstanceManager();
var endActivityInstance = aim.GetById(endTransitionInstance.ToActivityInstanceID);
bool hasGatewayNode = false;
var lastTaskActivityInstance = tim.GetPreviousActivityInstance(endActivityInstance, false,
out hasGatewayNode).ToList()[0];
var lastTaskActivity = processModel.GetActivity(lastTaskActivityInstance.ActivityGUID);
//封装返签结束点之前办理节点的任务接收人
rmins.AppRunner.NextActivityPerformers = ActivityResource.CreateNextActivityPerformers(lastTaskActivityInstance.ActivityGUID,
lastTaskActivityInstance.EndedByUserID,
lastTaskActivityInstance.EndedByUserName);
rmins.ActivityResource = new ActivityResource(runner, rmins.AppRunner.NextActivityPerformers);
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.BackwardContext.ProcessInstance = processInstance;
rmins.BackwardContext.BackwardToTaskActivity = lastTaskActivity;
rmins.BackwardContext.BackwardToTaskActivityInstance = lastTaskActivityInstance;
rmins.BackwardContext.BackwardToTargetTransitionGUID =
hasGatewayNode == false ? endTransitionInstance.TransitionGUID : String.Empty;
rmins.BackwardContext.BackwardFromActivity = endActivity;
rmins.BackwardContext.BackwardFromActivityInstance = endActivityInstance;
rmins.BackwardContext.BackwardTaskReciever = WfBackwardTaskReciever.Instance(lastTaskActivityInstance.ActivityName,
lastTaskActivityInstance.EndedByUserID,
lastTaskActivityInstance.EndedByUserName);
return rmins;
}
/// <summary>
/// 创建跳转实例信息
/// </summary>
/// <param name="runner"></param>
/// <param name="result"></param>
/// <returns></returns>
public static WfRuntimeManager CreateRuntimeInstanceJump(WfAppRunner runner,
ref WfExecutedResult result)
{
var rmins = new WfRuntimeManagerJump();
rmins.WfExecutedResult = result = new WfExecutedResult();
if (string.IsNullOrEmpty(runner.AppName)
|| String.IsNullOrEmpty(runner.AppInstanceID)
|| runner.ProcessGUID == null
|| runner.NextActivityPerformers == null)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Jump_ErrorArguments;
result.Message = "方法参数错误，无法运行流程！";
return rmins;
}
//流程跳转时，只能跳转到一个节点
if (runner.NextActivityPerformers.Count() > 1)
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Jump_OverOneStep;
result.Message = string.Format("不能跳转到多个节点！节点数:{0}",
runner.NextActivityPerformers.Count());
return rmins;
}
//获取当前运行节点信息
var aim = new ActivityInstanceManager();
TaskViewEntity taskView = null;
var runningNode = aim.GetRunningNodeOfMine(runner, out taskView);
//传递runner变量
rmins.AppRunner = runner;
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;
var processModel = (new ProcessModel(runner.ProcessGUID));
rmins.ProcessModel = processModel;
#region 不考虑回跳方式
////获取跳转节点信息
//var jumpActivityGUID = runner.NextActivityPerformers.First().Key;
//var jumpActivityInstanceList = aim.GetActivityInstance(runner.AppInstanceID, runner.ProcessGUID, jumpActivityGUID);
//if (jumpActivityInstanceList != null
// && jumpActivityInstanceList.Count > 0)
//{
// //跳转到曾经执行过的节点上,可以作为跳回方式处理
// rmins.IsBackward = true;
// rmins.BackwardContext.ProcessInstance = (new ProcessInstanceManager()).GetById(runningNode.ProcessInstanceID);
// rmins.BackwardContext.BackwardToTaskActivity = processModel.GetActivity(jumpActivityGUID);
// //获取当前运行节点的上一步节点
// bool hasGatewayNode = false;
// var tim = new TransitionInstanceManager();
// var lastTaskTransitionInstance = tim.GetLastTaskTransition(runner.AppName,
// runner.AppInstanceID, runner.ProcessGUID);
// var previousActivityInstance = tim.GetPreviousActivityInstance(runningNode, true,
// out hasGatewayNode).ToList()[0];
// //仅仅是回跳到上一步节点，即按SendBack方式处理
// if (previousActivityInstance.ActivityGUID == jumpActivityGUID)
// {
// rmins.BackwardContext.BackwardToTaskActivityInstance = previousActivityInstance;
// rmins.BackwardContext.BackwardToTargetTransitionGUID =
// hasGatewayNode == false ? lastTaskTransitionInstance.TransitionGUID : System.Guid.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(
// previousActivityInstance.ActivityName,
// previousActivityInstance.EndedByUserID.Value,
// previousActivityInstance.EndedByUserName);
// rmins.AppRunner.NextActivityPerformers = ActivityResource.CreateNextActivityPerformers(
// previousActivityInstance.ActivityGUID,
// previousActivityInstance.EndedByUserID.Value,
// previousActivityInstance.EndedByUserName);
// }
// else
// {
// //回跳到早前节点
// var jumptoActivityInstance = jumpActivityInstanceList[0];
// if (jumptoActivityInstance.ActivityState != (short)ActivityStateEnum.Completed)
// {
// result.Status = WfExecutedStatus.Exception;
// result.Exception = WfJumpException.NotActivityBackCompleted;
// result.Message = string.Format("回跳到的节点不在完成状态，无法重新回跳！");
// return rmins;
// }
// rmins.BackwardContext.BackwardToTaskActivityInstance = jumptoActivityInstance;
// //判断两个节点是否有Transition的定义存在
// var transition = processModel.GetForwardTransition(runningNode.ActivityGUID, runner.JumpbackActivityGUID.Value);
// rmins.BackwardContext.BackwardToTargetTransitionGUID = transition != null ? transition.TransitionGUID : System.Guid.Empty;
// rmins.BackwardContext.BackwardFromActivity = processModel.GetActivity(runningNode.ActivityGUID);
// rmins.BackwardContext.BackwardFromActivityInstance = runningNode;
// rmins.BackwardContext.BackwardTaskReciever = WfBackwardTaskReciever.Instance(
// jumptoActivityInstance.ActivityName,
// jumptoActivityInstance.EndedByUserID.Value,
// jumptoActivityInstance.EndedByUserName);
// rmins.AppRunner.NextActivityPerformers = ActivityResource.CreateNextActivityPerformers(
// jumptoActivityInstance.ActivityGUID,
// jumptoActivityInstance.EndedByUserID.Value,
// jumptoActivityInstance.EndedByUserName);
// }
// //获取资源数据
// var activityResourceBack = new ActivityResource(rmins.AppRunner,
// rmins.AppRunner.NextActivityPerformers,
// runner.Conditions);
// rmins.ActivityResource = activityResourceBack;
//}
//else
//{
// //跳转到从未执行过的节点上
// var activityResource = new ActivityResource(runner, runner.NextActivityPerformers, runner.Conditions);
// rmins.ActivityResource = activityResource;
// rmins.RunningActivityInstance = runningNode;
//}
#endregion
//跳转到从未执行过的节点上
var activityResource = new ActivityResource(runner, runner.NextActivityPerformers, runner.Conditions);
rmins.ActivityResource = activityResource;
rmins.RunningActivityInstance = runningNode;
return rmins;
}
/// <summary>
/// 获取已经完成的节点记录
/// </summary>
/// <param name="runner"></param>
/// <returns></returns>
public IList<NodeImage> GetActivityInstanceCompleted(WfAppRunner runner)
{
IList<NodeImage> imageList = new List<NodeImage>();
var am = new ActivityInstanceManager();
var list = am.GetCompletedActivityInstanceList(runner.AppInstanceID, runner.ProcessGUID);
foreach (ActivityInstanceEntity a in list)
{
imageList.Add(new NodeImage
{
ID = a.ID,
ActivityName = a.ActivityName
});
}
return imageList;
}
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)
{
if (entity.FromActivityType == (short)ActivityTypeEnum.TaskNode
|| entity.FromActivityType == (short)ActivityTypeEnum.PluginNode
|| entity.FromActivityType == (short)ActivityTypeEnum.ScriptNode
|| entity.FromActivityType == (short)ActivityTypeEnum.StartNode)
{
previousActivityInstanceList.Add(aim.GetById(entity.FromActivityInstanceID));
}
else if (entity.FromActivityType == (short)ActivityTypeEnum.GatewayNode)
{
GetPreviousOfGatewayActivityInstance(transitionList, entity.FromActivityInstanceID, previousActivityInstanceList);
}
}
}
/// <summary>
/// 创建新的委托任务
/// </summary>
/// <param name="entity"></param>
internal void Entrust(TaskEntrustedEntity entity)
{
var session = SessionFactory.CreateSession();
try
{
//获取活动实例信息
session.BeginTrans();
var am = new ActivityInstanceManager();
var activityInstance = am.GetByTask(entity.ID, session);
if (activityInstance.ActivityState != (short)ActivityStateEnum.Ready
&& activityInstance.ActivityState != (short)ActivityStateEnum.Running)
{
throw new WorkflowException("没有可以委托的任务，因为活动实例的状态不在运行状态！");
}
//更新AssignedToUsers 信息
activityInstance.AssignedToUsers = activityInstance.AssignedToUsers + "," + entity.EntrustToUserID;
am.Update(activityInstance, session);
//插入委托任务
Insert(activityInstance, entity.EntrustToUserID, entity.EntrustToUserName,
entity.RunnerID, entity.RunnerName, session);
session.Commit();
}
catch(System.Exception e)
{
session.Rollback();
throw new WorkflowException("任务委托失败，请查看异常信息！", e);
}
finally
{
session.Dispose();
}
}