/// <summary>
/// 用途：当界面里的业务数据变化时，得到下一能达到的下一活动节点集
/// 范围：对当前流程活动可操作的用户
/// 约定：对于查阅权限返回null
/// </summary>
/// <param name="workitemInstanceGuid">当前流程活动标识</param>
/// <returns>下一能达的活动节点集</returns>
public IList <MaybeActivity> GetMaybeActivities(string workitemInstanceGuid)
{
WorkitemInstance wii = this.GetWorkitemInstance(workitemInstanceGuid);
///不在许可范围之内的，直接返回null
if (!this.IsEffective(wii))
{
return(new List <MaybeActivity>());
}
if (wii.User.Guid.Equals(this.Context.CurUser.Guid)) //判断是否是当前流程实例活动的操作人
{
return(wii.GetNextEffectiveActivities());
}
else if (wii.IsProxy && wii.ProxyUser.Guid.Equals(this.Context.CurUser.Guid)) //判断是否是代理人
{
return(wii.GetNextEffectiveActivities());
}
else if (wii.IsProxy == false && wii.IsEffectiveByProxyUser()) //判断是否是潜在代理人
{
return(wii.GetNextEffectiveActivities());
}
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
{
return(wii.GetNextEffectiveActivities());
}
else if (this.Context.CurUser.IsAdministrator())//大管理员，什么情况下都可以执行后继操作，可以改变流程状态
{
return(wii.GetNextEffectiveActivities());
}
return(new List <MaybeActivity>());
}
/// <summary>
/// 当前用户是否可以访问该流程实例活动
/// </summary>
/// <param name="wii"></param>
/// <returns></returns>
bool IsEffective(WorkitemInstance wii)
{
///是否大管理员
if (this.Context.CurUser.IsAdministrator())
{
return(true);
}
///是否流程模型管理员
if (wii.GetWorkflowInstance().GetWorkflow().IsAdministrators(this.Context.CurUser))
{
return(true);
}
///是否当前流程实例活动的操作者
if (wii.GetWorkflowInstance().GetWorkflow().IsLegalAuthor(this.Context.CurUser))
{
return(true);
}
///是否当前流程实例活动的代理操作者
if (wii.IsProxy && _uc.Equals(wii.ProxyUser, this.Context.CurUser))
{
return(true);
}
///是否当前流程实例活动的潜在代理操作者
return(wii.IsEffectiveByProxyUser());
}
/// <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);
}