/// <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));
}
/// <summary>
/// 撤销操作
/// 包括：
/// 1) 正常流转
/// 2) 多实例节点流转
/// </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 CreateRuntimeInstanceWithdraw(WfAppRunner runner,
ref WfExecutedResult result)
{
WfRuntimeManager rmins = new WfRuntimeManagerWithdraw();
rmins.WfExecutedResult = result = new WfExecutedResult();
var aim = new ActivityInstanceManager();
var runningActivityInstanceList = aim.GetRunningActivityInstanceList(runner.AppInstanceID, runner.ProcessGUID).ToList();
WithdrawOperationTypeEnum withdrawOperation = WithdrawOperationTypeEnum.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.Withdraw_NotInReady;
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
{
//先判断节点的状态是否是有效状态
var runningNode = runningActivityInstanceList[0];
if (runningNode.ActivityState != (short)ActivityStateEnum.Ready &&
runningNode.ActivityState != (short)ActivityStateEnum.Suspended) //只有准备或挂起状态的节点可以撤销
{
result.Status = WfExecutedStatus.Exception;
result.ExceptionType = WfExceptionType.Withdraw_NotInReady;
result.Message = string.Format("无法撤销到上一步，因为要撤销的节点为空，或不在【待办/挂起】状态，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的子节点
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，此时上一步骤可以撤销
withdrawOperation = WithdrawOperationTypeEnum.MISFirstOneIsRunning;
}
else if (runningNode.CompleteOrder > 1)
{
//串行模式多实例内部撤销，其中只有1个节点处于运行状态
withdrawOperation = WithdrawOperationTypeEnum.MISOneIsRunning;
}
else if (runningNode.CompleteOrder == -1)
{
//并行模式下CompleteOrder的值为 -1，此时只剩余最后一个
//要撤销的话，是对并行会签节点的内部撤销，即认为是重新办理，找到当前运行人的节点，置状态为待办状态就可以
withdrawOperation = WithdrawOperationTypeEnum.MIPSeveralIsRunning;
}
}
else
{
//当前运行节点是普通节点模式
withdrawOperation = WithdrawOperationTypeEnum.Normal;
}
}
else if (runningActivityInstanceList.Count() > 1) //有多个并行运行节点存在
{
//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，则上一步可以撤销回去，否则不可以撤销
var firstActivityInstance = runningActivityInstanceList[0];
if (firstActivityInstance.MIHostActivityInstanceID != null)
{
bool isAllInReadyState = true;
var allChildNodeList = aim.GetActivityMultipleInstance(firstActivityInstance.MIHostActivityInstanceID.Value,
firstActivityInstance.ProcessInstanceID);
foreach (var ai in allChildNodeList)
{
if (ai.ActivityState != (short)ActivityStateEnum.Ready &&
ai.ActivityState != (short)ActivityStateEnum.Suspended)
{
isAllInReadyState = false;
break;
}
}
if (isAllInReadyState == true)
{
//子节点全部处于待办状态
withdrawOperation = WithdrawOperationTypeEnum.MIPAllIsInReadyState;
}
else
{
//部分子节点有完成的
withdrawOperation = WithdrawOperationTypeEnum.MIPSeveralIsRunning;
}
}
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.Withdraw_HasTooMany;
result.Message = "有多个可以撤销回去的节点，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(CreateRuntimeInstanceWithdrawByCase(runningActivityInstanceList, withdrawOperation, runner, ref result));
}