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);
}
protected virtual void OnWorkflowException(object sender, WorkflowExceptionEventArgs e)
{
lock (_waitEventLock)
{
IsComplete = true;
IsInError = true;
e.Arguments = Arguments;
e.WorkflowId = Id;
WorkflowException?.Invoke(this, e);
StopRunning();
}
}
public bool TryGetValue(Exception key, out WorkflowException value)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
value = null;
var weakKey = new WeakKey <Exception>(key);
var result = exceptions.TryGetValue(weakKey, out Queue <ExpressionBuilder> callStack);
if (result)
{
while (callStack.Count > 0)
{
var builder = callStack.Dequeue();
value = new WorkflowRuntimeException(key.Message, builder, value ?? key);
}
}
return(result);
}
internal void AddError(WorkflowException error)
{
this.errors.Add(error);
}
/// <summary>
/// 获取流程当前运行节点信息
/// </summary>
/// <param name="runner">执行者</param>
/// <param name="taskView">任务视图</param>
/// <returns>活动实例</returns>
internal ActivityInstanceEntity GetRunningNode(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 activityInstanceList = aim.GetRunningActivityInstanceList(runner.AppInstanceID, runner.ProcessGUID).ToList();
if ((activityInstanceList != null) && (activityInstanceList.Count == 1))
{
activityInstance = activityInstanceList[0];
taskView = tm.GetTaskOfMine(activityInstance.ID, runner.UserID);
}
else if (activityInstanceList.Count > 0)
{
if (runner.TaskID != null && runner.TaskID.Value != 0)
{
taskView = tm.GetTaskView(taskID.Value);
foreach (var ai in activityInstanceList)
{
if (ai.ID == taskView.ActivityInstanceID)
{
activityInstance = ai;
break;
}
}
//判断是否有并行节点存在，如果有并行节点存在，取并行节点的主节点（并行会签）
if (activityInstance == null && activityInstanceList[0].MIHostActivityInstanceID != null)
{
var mainActivityInstanceID = activityInstanceList[0].MIHostActivityInstanceID;
activityInstance = aim.GetById(mainActivityInstanceID.Value);
}
}
else
{
//并行模式处理
//根据当前执行者身份取出(他或她)要办理的活动实例（并行模式下有多个处于待办或运行状态的节点）
foreach (var ai in activityInstanceList)
{
if (ai.AssignedToUserIDs == runner.UserID)
{
activityInstance = ai;
break;
}
}
if (activityInstance != null)
{
//获取taskview
taskView = tm.GetTaskOfMine(activityInstance.ID, runner.UserID);
}
else
{
//当前用户的待办任务不唯一，抛出异常，需要TaskID唯一界定
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);
}