WaitingResumption ISchedulerService.Get(long id)
{
return _resumptionRepository.FindBy(id);
}
public void Run()
{
this._running = true;
if (this._timer == null)
{
this._timer = new System.Timers.Timer(this._interval);
this._timer.Elapsed += (state, args) =>
{
if (!this._running)
{
return;
}
//HACK:一个调度实例同时只有一个worker线程激活
if (this._charging)
{
return;
}
lock (this._lock)
{
if (this._charging)
{
return;
}
this._charging = true;
}
//this._log.Debug("ChargeResumption");
try
{
this.ChargeResumption()
//.AsParallel()//TODO:parallel调度效果需要进一步验证
//.ForAll(r =>
//TODO:调整为按流程串行调度，避免意外并发问题和保证调度顺序
.ForEach(r =>
{
if (!this._running)
{
return;
}
try
{
//HACK:由于匿名委托共享Run的callcontext因此需要单独声明session
using (var session = Taobao.Infrastructure.Castles.NHibernateRepositoryUtility.UnmanagedSession())
{
this.Resume(r);
session.Flush();
}
//尝试将流程置为active
using (var session = Taobao.Infrastructure.Castles.NHibernateRepositoryUtility.UnmanagedSession())
{
var processService = DependencyResolver.Resolve <IProcessService>();
var resumption = _repository.FindBy(r);
//if (resumption.Process.Status == ProcessStatus.Running)
//{
if (resumption is SubProcessCreateResumption || resumption is WorkItemCreateResumption)
{
processService.TrySetAsActiveAtResumption(resumption.Process, resumption);
session.Flush();
}
//}
}
}
catch (Exception e)
{
//HACK:此处异常将被认为是意外出现的异常?
this._log.Error(string.Format("Resumption Error Occur At #{0}", r), e);
}
});
}
catch (Exception e)
{
this._log.Fatal("Charging error", e);
}
finally
{
this._charging = false;
}
};
this._timer.Start();
}
this._log.Info("NTFE-BPM应用调度器启动");
}
