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exception while using Thread and NHibernate Options
Posted: Thursday, July 30, 2009 12:54:29 PM
Rank: Advanced Member
Groups: Member

Joined: 6/18/2007
Posts: 39
Points: 117

I tried to write a task manager by using Thread class and NHibernate , but I got the following exception.
I also remove isWeb="true" from facilities.config.

Sample Code:

private Article _article;
private ArticleModule _articleModule;

private void StartTask()


Thread thread = new Thread(new ThreadStart(Execute));



private void Execute()



this._article = this._articleModule.GetArticleById(articleId);

// ...





Exception error

Castle.MicroKernel.Facilities.FacilityException was unhandled
Message="WebSessionStore: Could not obtain reference to HttpContext"
at Castle.Facilities.NHibernateIntegration.Internal.WebSessionStore.ObtainSessionContext()
at Castle.Facilities.NHibernateIntegration.Internal.WebSessionStore.GetDictionary()
at Castle.Facilities.NHibernateIntegration.Internal.AbstractDictStackSessionStore.GetStackFor(String alias)
at Castle.Facilities.NHibernateIntegration.Internal.AbstractSessionStore.FindCompatibleSession(String alias)
at Castle.Facilities.NHibernateIntegration.Internal.DefaultSessionManager.OpenSession(String alias)
at Castle.Facilities.NHibernateIntegration.Internal.DefaultSessionManager.OpenSession()
at SAS.Core.CoreModule.GetUndoneTask()
at SAS.Core.Web.TaskMgmt.execute()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.runTryCode(Object userData)
at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()

Posted: Friday, July 31, 2009 12:39:30 AM

Rank: Administration
Groups: Administration , Member

Joined: 12/30/2004
Posts: 1,674
Points: 1,824
Location: Wageningen (NL)
When performing things in a separate thread, you have to obtain a session manually because as if you have noticed, there is no HttpContext where the session manager retrieves its session from (don't remove isWeb from the config).

In your module:

private void Execute()
    ISessionFactory sessionFactory = IoC.Resolve< ISessionFactory >();
    using (ISession session = sessionFactory.OpenSession())
        MyObject myObject = session.Get< MyObject >(objectId);

See also the RemoteContentModule.cs (FetchFeed()).
Posted: Saturday, August 1, 2009 4:39:41 AM
Rank: Advanced Member
Groups: Member

Joined: 6/18/2007
Posts: 39
Points: 117
Thanks Martijn
Posted: Tuesday, June 15, 2010 12:59:20 PM
Rank: Newbie
Groups: Member

Joined: 4/8/2010
Posts: 7
Points: 21
Hi guys,
Forgive the late post, I am playing with the 2 beta and implemented as simular task archetecturem and was wondering how you would do the same, as a lot of the SessionFactory code was replaced with the SessionFactoryHelper and the ISessionManager?
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