/// <summary>
/// 工作项锁处理
/// 对于已经加锁的超过锁定期的自动解锁，并重新上锁, 返回可处理流程权限为可控制状态
/// 对于未加锁的直接上锁,返回可处理流程权限为可控制状态
/// 对于已经加锁的在有效锁定期内的，返回处理流程权限为不可控制状态
/// </summary>
/// <param name="wii"></param>
/// <returns>工作项只读状态</returns>
public bool?EncodeLock(WorkitemInstance wii)
{
///如果处理锁竞争状态， 如果无需上锁则直接退出
if (!wii.GetActivity().IsLock)
{
return(null);
}
///如果还没有被锁过，则置初始锁
var locker = wii.GetWorkflowInstance().GetWorkflowInstanceLock();
if (locker == null || !locker.IsLock)
{
return(wii.GetWorkflowInstance().SaveWorkflowInstanceLock(new WorkitemLocker()
{
User = this.Context.CurUser,
IsLock = true,
LoggedTime = DateTime.Now,
}));
}
///超过设置时间自动解锁(默认单位为分钟)
if (locker.LoggedTime.AddMinutes(this.Context.Config.LockMinute) >= DateTime.Now)
{
return(wii.GetWorkflowInstance().SaveWorkflowInstanceLock(new WorkitemLocker()
{
User = this.Context.CurUser,
IsLock = true,
LoggedTime = DateTime.Now,
}));
}
///当前还在有效被锁的状态中
return(false);
}
/// <summary>
/// 解锁
/// </summary>
/// <param name="wii"></param>
public bool?DecodeLock(WorkitemInstance wii)
{
var locker = wii.GetWorkflowInstance().GetWorkflowInstanceLock();
if (locker == null)
{
return(null);
}
if (wii.GetActivity().IsLock
&&
locker.IsLock
&&
_uc.Equals(locker.User, this.Context.CurUser))
{
return(wii.GetWorkflowInstance().SaveWorkflowInstanceLock(new WorkitemLocker()
{
User = this.Context.CurUser,
IsLock = true,
LoggedTime = DateTime.Now,
}));
}
else
{
return(null);
}
}
void AdminLock(WorkitemInstance wii)
{
if (wii.GetActivity().IsLock)
{
wii.GetWorkflowInstance().Locker = new WorkitemLocker()
{
User = this.Context.CurUser,
IsLock = true,
LoggedTime = DateTime.Now,
};
}
}
/// <summary>
/// 强制加锁
/// </summary>
/// <param name="wii"></param>
/// <returns></returns>
public bool?AdminLock(WorkitemInstance wii)
{
///如果处理锁竞争状态， 如果无需上锁则直接退出
if (!wii.GetActivity().IsLock)
{
return(null);
}
return(wii.GetWorkflowInstance().SaveWorkflowInstanceLock(new WorkitemLocker()
{
User = this.Context.CurUser,
IsLock = true,
LoggedTime = DateTime.Now,
}));
}
/// <summary>
/// 解锁
/// </summary>
/// <param name="wii"></param>
void DecodeLock(WorkitemInstance wii)
{
if (wii.GetActivity().IsLock
&&
wii.GetWorkflowInstance().Locker.IsLock
&&
wii.GetWorkflowInstance().Locker.User.Guid.Equals(this.Context.CurUser.Guid))
{
wii.GetWorkflowInstance().Locker = new WorkitemLocker()
{
IsLock = false,
User = this.Context.CurUser,
LoggedTime = DateTime.Now,
};
}
}
/// <summary>
/// 工作项锁处理
/// 对于已经加锁的超过锁定期的自动解锁，并重新上锁, 返回可处理流程权限为可控制状态
/// 对于未加锁的直接上锁,返回可处理流程权限为可控制状态
/// 对于已经加锁的在有效锁定期内的，返回处理流程权限为不可控制状态
/// </summary>
/// <param name="wii"></param>
/// <returns>工作项只读状态</returns>
bool EncodeLock(WorkitemInstance wii)
{
bool result = false;
#region 锁定处理
///如果处理锁竞争状态， 则直接上锁
if (wii.GetActivity().IsLock)
{
if (wii.GetWorkflowInstance().Locker == null
||
wii.GetWorkflowInstance().Locker.IsLock == false
)
{
wii.GetWorkflowInstance().Locker = new WorkitemLocker()
{
User = this.Context.CurUser,
IsLock = true,
LoggedTime = DateTime.Now,
};
result = this.SetWorkflowInstance(wii.GetWorkflowInstance(), eStoreType.Update);
}
else
///超过设置时间自动解锁(默认为一小时)
if (wii.GetWorkflowInstance().Locker.LoggedTime.AddHours(this.Context.Config.LockMinute) >= DateTime.Now)
{
wii.GetWorkflowInstance().Locker = new WorkitemLocker()
{
User = this.Context.CurUser,
IsLock = true,
LoggedTime = DateTime.Now,
};
result = this.SetWorkflowInstance(wii.GetWorkflowInstance(), eStoreType.Update);
}
else
{
result = false;
}
}
else
{
result = true;
}
#endregion
return(result);
}
/// <summary>
/// 用途：界面请求初始化至流程服务，用于流程活动审批环节
/// 约定：
/// 1、系统管理员、当前流程模型管理员、当前流程实例活动操作者、当前流程实例活动委托人可以访问并打开
/// 2、系统管理员、当前流程模型管理员可以对已经结束的流程实例环节进行处理，可以处理后继流程、修改数据等，但记录为管理员参与修改
/// 3、当前流程实例活动操作者、当前流程实例活动委托人仅能在未处理完成的流程活动进行处理，可以处理后继流程、修改数据等
/// 4、当前流程实例活动操作者、当前流程实例活动委托人对在处理完成的流程活动进行查阅操作
/// </summary>
/// <param name="workitemInstanceGuid"></param>
/// <returns></returns>
public ResponseByWorkitem GetDataByWorkitemInstance(string workitemInstanceGuid)
{
WorkitemInstance wii = this.GetWorkitemInstance(workitemInstanceGuid);
ResponseByWorkitem response = new ResponseByWorkitem();
///判断是否非激活状态
///如果是非激活状态直接退出
if (!wii.IsActive())
{
response = new ResponseByWorkitem()
{
ActivityInstance = wii,
NextMaybeActivities = null,
UIRight = this.Context.Config.RightByReadOnly,
CallBackMessage = new ResultMessage()
{
State = false, Message = "当前流程处理非活动状态"
},
};
return(response);
}
///锁定处理
bool?el = EncodeLock(wii);
if (el.HasValue && el.Value)
{
if (wii.IsAdministratorProxy)
{
AdminLock(wii);
}
else
{
response.UIRight = this.Context.Config.RightByReadOnly;
response.CallBackMessage = new ResultMessage()
{
State = false,
Message = "流程被"
+ wii.GetWorkflowInstance().GetWorkflowInstanceLock().User.Name + "锁定！"
};
return(response);
}
}
#region 可操作状态
if (_uc.Equals(wii.User, this.Context.CurUser)) //判断是否是当前流程实例活动的操作人
{
response.ActivityInstance = wii;
response.NextMaybeActivities = wii.GetNextEffectiveActivities();
response.UIRight = wii.GetActivity().UIRight;
response.CallBackMessage = new ResultMessage()
{
State = true, Message = ""
};
}
else if (wii.IsProxy && _uc.Equals(wii.ProxyUser, this.Context.CurUser)) //判断是否是代理人
{
response.ActivityInstance = wii;
response.NextMaybeActivities = wii.GetNextEffectiveActivities();
response.UIRight = wii.GetActivity().UIRight;
response.CallBackMessage = new ResultMessage()
{
State = true, Message = "代理人:" + this.Context.CurUser.Name + "参与处理！"
};
}
else if (wii.IsProxy == false && wii.IsEffectiveByProxyUser()) //判断是否是潜在代理人
{
wii.IsProxy = true;
wii.ProxyUser = this.Context.CurUser;
response.ActivityInstance = wii;
response.NextMaybeActivities = wii.GetNextEffectiveActivities();
response.UIRight = wii.GetActivity().UIRight;
response.CallBackMessage = new ResultMessage()
{
State = true, Message = "代理人:" + this.Context.CurUser.Name + "首次参与处理！"
};
}
else if (wii.GetWorkflowInstance().GetWorkflow().Administrators.Contains(this.Context.CurUser, _uc)) //流程模型管理员，同大管理员，但限于授权的流程模型
{
wii.IsAdministratorProxy = true;
response.ActivityInstance = wii;
response.NextMaybeActivities = wii.GetNextEffectiveActivities();
response.UIRight = this.Context.Config.RightByFull;
response.CallBackMessage = new ResultMessage()
{
State = true, Message = "流程管理员:" + this.Context.CurUser.Name + "参与处理！"
};
}
else if (this.Context.CurUser.IsAdministrator())//大管理员，可以执行后继操作，可以改变流程状态
{
wii.IsAdministratorProxy = true;
response.ActivityInstance = wii;
response.NextMaybeActivities = wii.GetNextEffectiveActivities();
response.UIRight = this.Context.Config.RightByFull;
response.CallBackMessage = new ResultMessage()
{
State = true, Message = "系统管理员:" + this.Context.CurUser.Name + "参与处理！"
};
}
else
{
response.ActivityInstance = null;
response.NextMaybeActivities = null;
response.UIRight = this.Context.Config.RightByReadOnly;
response.CallBackMessage = new ResultMessage()
{
State = false, Message = "非法用户请求！"
};
///设置解锁
this.DecodeLock(wii);
return(response);
}
#endregion
var rm = wii.BeforeTrigger();
if (!rm.State)
{
response.UIRight = this.Context.Config.RightByReadOnly;
response.CallBackMessage = new ResultMessage()
{
State = false, Message = rm.Message
};
///设置解锁
this.DecodeLock(wii);
return(response);
}
switch (wii.GetActivity().ActivityType)
{
#region ConvergeStart 如果为根结点处理则直接返回
case eActivityType.ConvergeStart:
{
return(response);
}
#endregion
#region ConvergeWaitLeftComplete 汇聚结点判断[该结点的最近导入活动必须全部完成才允许执行激活本结点]
case eActivityType.ConvergeWaitLeftComplete:
{
///排除当前结点，默认能到本结点，即认为本结点之前的结点为结束状态
var wiis = wii.GetWorkflowInstance().GetWorkitemInstnces().Where((t) =>
{
return(t.ActivityGuid == wii.ActivityGuid &&
string.IsNullOrWhiteSpace(t.FromWorkitemInstanceGuid) == false &&
t.Guid != wii.Guid);
});
bool b = true;
foreach (var t in wiis)
{
var pwii = this.GetWorkitemInstance(t.FromWorkitemInstanceGuid);
///上一层次结点如有未完成，则返回false
if (pwii != null && pwii.IsActive())
{
b = false;
break;
}
}
///之前有未完成处理的结点。则不能处理当前环节
if (!b)
{
response.UIRight = this.Context.Config.RightByReadOnly;
response.CallBackMessage = new ResultMessage()
{
State = false, Message = "本节点之前还有尚未处理完成之步骤！不能进行后续处理。"
};
///设置解锁
this.DecodeLock(wii);
return(response);
}
;
return(response);
}
#endregion
#region ConvergeWaitConditionComplete 该结点的所有导入活动进行条件判断，只有满足条件的才允许激活本结点
case eActivityType.ConvergeWaitConditionComplete:
{
break;
}
#endregion
#region ConvergeWaitAllComplete 该结点的所有导入活动必须全部完成才允许执行激活本结点
case eActivityType.ConvergeWaitAllComplete:
{
break;
}
#endregion
#region ConvergeCoerceComplete 无论该结点的所有导入活动完成与否直接激活本结点，关闭直接导入活动结点
case eActivityType.ConvergeCoerceComplete:
{
break;
}
#endregion
#region ConvergeEnd 无论该结点的前的所有活动完成与否直接激活本结点，关闭流程运行
case eActivityType.ConvergeEnd:
{
break;
}
#endregion
#region Concurrency 并发处理，1、该结点可以由多人同时处理，即有多个结点实例存在 2、如果后继无汇聚处理则流程存在散发状态
case eActivityType.Concurrency:
{
break;
}
#endregion
#region ConcurrencyVote 投票处理 1、投票结点是特殊的并发结点 2、投标结点有相应的扩展字段来实现对投票的显示统计处理
case eActivityType.ConcurrencyVote:
{
response.VoteItems = ((ActivityByConcurrencyVote)wii.GetActivity()).VoteItems;
response.CallBackMessage = new ResultMessage()
{
State = true, Message = "请参与投票处理！"
};
break;
}
#endregion
#region ConcurrencyExclusion 竞争处理[1、竞争结点是更为特殊的并发结点，结点有多个实例，但是实例必须只有一可以处理，其它的实例就为排斥关闭状态 2、多个人让最先见到的人处理]
case eActivityType.ConcurrencyExclusion:
{
var pwii = this.GetWorkitemInstance(wii.FromWorkitemInstanceGuid);
foreach (var pna in pwii.NextActivities)
{
///同组别的,置为竞争关闭状态
if (!pna.WorkitemInstanceGuid.Equals(wii.Guid)
&&
pna.ActivityGuid == wii.ActivityGuid)
{
var t = this.GetWorkitemInstance(pna.WorkitemInstanceGuid);
t.ConcurrencyExclusion();
t.Save();
}
}
break;
}
#endregion
default:
break;
}
wii.Save();
return(response);
}
/// <summary>
/// 用途：创建流程实例并返回首个流程活动工作项
/// 约定：
/// 1、一个流程有且仅有一个根活动
/// 2、代理人不能发起委托人的新流程，只能处理委托日期后正在流转的流程数据
/// 3、有发起流程模型权限方可以操作
/// </summary>
/// <param name="workflowGuid">流程模型guid</param>
/// <returns>首个流程活动工作项</returns>
public ResponseByWorkitem CreateWorkflowInstance(string workflowGuid, string name = null)
{
///创建流程实例
WorkflowInstance wfi = new WorkflowInstance(workflowGuid, name);
//wfi.Guid ...
//wfi.Name ...
//wfi.WorkflowGuid ...
wfi.Author = this.Context.CurUser;
//wfi.WorkflowState ...
//wfi.Participator ...
//wfi.Locker ...
//wfi.BeginTime ...;
//wfi.EndTime ...;
//wfi.DataEntity ...
wfi.SetContext(this.Context);
///加入权限控制
if (!(this.Context.CurUser.IsAdministrator() ||//是否大管理员
wfi.GetWorkflow().IsAdministrators(this.Context.CurUser) ||//是否流程模型管理员
wfi.GetWorkflow().IsLegalAuthor(this.Context.CurUser) //流程的合法发起用户
))
{
return(new ResponseByWorkitem()
{
CallBackMessage = new ResultMessage()
{
State = false, Message = "不能发起流程！"
}
});
}
///开启流程实例服务
wfi.Start();
wfi.Save();
//创建活动实例
WorkitemInstance wii = new WorkitemInstance(wfi.Guid, wfi.GetWorkflow().GetStartNode());
//wii.Guid ...
//wii.Name ...
//wii.ActivityGuid ...
//wii.WorkflowInstanceGuid ...
//wii.AduitContent = "";
//wii.AduitSign = "";
//wii.ReadTime = null;
//wii.NextActivities = null;
wii.User = this.Context.CurUser;
//wii.ProxyUser = null;
//wii.IsProxy = false;
//wii.WorkitemInstanceState ...
//wii.FromWorkitemInstanceGuid = "";
//wii.AttachmentTrainsitions = null;
//wii.SelectVoteItem = "";
//wii.OtherVoteItemContent = "";
//wii.BeginTime ...;
//wii.EndTime ...;
//wii.DataEntity ...
wii.SetContext(this.Context);
///开启活动实例
wii.Start();
wii.Save();
///活动前事件处理
var rm = wii.BeforeTrigger();
ResponseByWorkitem response;
///如果不满足
if (!rm.State)
{
response = new ResponseByWorkitem()
{
ActivityInstance = wii,
//NextMaybeActivities=null,
UIRight = this.Context.Config.RightByReadOnly,
CallBackMessage = rm,
};
}
else
{
response = new ResponseByWorkitem()
{
ActivityInstance = wii,
NextMaybeActivities = wii.GetNextEffectiveActivities(),
UIRight = wii.GetActivity().UIRight,
CallBackMessage = new ResultMessage()
{
State = true, Message = ""
},
};
}
return(response);
}