/// <summary>
/// Set work next location from Kanban information
/// かんばんの目的地をワークに付ける（付け替える）
/// </summary>
/// <param name="location">target location of this Process instance</param>
/// <returns>Kanban that is attached to a work</returns>
private JitKanban CheckAndAttachKanban(JitLocation location, DateTime now)
{
var queue = kanbanQueue.GetValueOrDefault(location.Stage, true, a => new Queue <EventQueueKanban>());
if (queue.Count == 0)
{
return(null);
}
var buf =
from we in location.Stage.GetWorks(location.ToChangeProcess(this))
where we.Work?.Next?.Process == null // No Next work
select new WorkEntery {
Work = we.Work, Enter = we.EnterTime
};
var work = ExitWorkSelector.Invoke(buf);
if (work == null)
{
return(null);
}
var sk = queue.Dequeue();
work.Next = sk.Kanban.PullTo;
work.Kanbans.Add(sk.Kanban);
sk.Kanban.Work = work;
if (work.ExitTime < now)
{
work.ExitTime = now; // Because the work should be waiting kanban to exit from this process. かんばんを待っていたので、現在時刻が進んだときは、現在時刻でExitしたいこととする。
}
return(sk.Kanban);
}
/// <summary>
/// Exit a priority work from this process that have not next process
/// Engineに溜まっているこの工程のワーク(Work.NextProcess==null)から Exit優先の高いものを一つ退出させる
/// </summary>
/// <returns>
/// selected work. null=no work
/// </returns>
/// <remarks>
/// ret.PrevProcess = THIS PROCESS (do not confuse prev is current)
/// ret.NextProcess = null
/// ret.CurrentProcess = null
/// </remarks>
public virtual JitWork ExitCollectedWork(JitLocation location, DateTime now)
{
var buf =
from wt in location.GetWorks(this)
where wt.Work?.Next?.Process == null // work that have not next process
where wt.Work.ExitTime <= now // select work that exit time expired.
select new WorkEntery {
Work = wt.Work, Enter = wt.EnterTime
};
var work = ExitWorkSelector.Invoke(buf);
if (work != null)
{
Exit(work);
work.Previous = work.Current.ToChangeProcess(this);
work.Current = work.Current.ToEmptyProcess();
work.Next = work.Current.ToEmptyProcess();
}
return(work);
}