[gatein-dev] SessionManagerContainer in exo.kernel.container 2.5.0-Alpha3
Nicolas Filotto
nicolas.filotto at exoplatform.com
Fri Nov 29 03:15:59 EST 2013
There are many things that have been added between Alpha1 and Alpha3, so I
will need more details. What do you mean exactly by "strange behavior with
some ThreadLocal<> variables"?
Please note that I don't work on Fridays so I will answer next week once I
will have more details
On Thu, Nov 28, 2013 at 8:46 PM, Lucas Ponce <lponce at redhat.com> wrote:
> Nicolas,
>
> Do you know if there is some change related multithreading between kernel
> 2.5.0-Alpha3 and 2.5.0-Alpha1 ?
>
> Debugging a class I'm seeing some strange behaviour with some
> ThreadLocal<> variables.
>
> Thanks again,
> Lucas
>
> ----- Mensaje original -----
> > De: "Nicolas Filotto" <nicolas.filotto at exoplatform.com>
> > Para: "Lucas Ponce" <lponce at redhat.com>
> > CC: "gatein-dev" <gatein-dev at lists.jboss.org>
> > Enviados: Jueves, 28 de Noviembre 2013 18:08:29
> > Asunto: Re: [gatein-dev] SessionManagerContainer in exo.kernel.container
> 2.6.0-Alpha3
> >
> > If you use the SessionManagerContainer, why don't you have a compilation
> > error ?
> >
> >
> > On Thu, Nov 28, 2013 at 4:50 PM, Lucas Ponce <lponce at redhat.com> wrote:
> >
> > > Hello Nicolas,
> > >
> > > POMSessionManager.java needs to access to SessionContext at this point:
> > >
> > > public POMSession getSession() {
> > > SessionContext context = configurator.getContext();
> > > return context != null ? (POMSession)
> > > context.getAttachment("mopsession") : null;
> > > }
> > >
> > > This is needed to PortalNamesCache.java to perform a query to
> > > POMDataStorage component:
> > >
> > > @Override
> > > public <V> V execute(POMSession session, POMTask<V> task) throws
> > > Exception {
> > > if (!session.isModified()) {
> > > if (task instanceof SearchTask.FindSiteKey) {
> > > SearchTask.FindSiteKey find = (SearchTask.FindSiteKey)
> > > task;
> > > List<PortalKey> data = (List<PortalKey>)
> > > session.getFromCache(find.getKey());
> > > if (data == null) {
> > > V result = super.execute(session, task);
> > > LazyPageList<PortalKey> list =
> > > (LazyPageList<PortalKey>) result;
> > > session.putInCache(find.getKey(),
> > > Collections.unmodifiableList(new ArrayList<PortalKey>(list.getAll())));
> > > return result;
> > > } else {
> > > return (V) new LazyPageList<PortalKey>(new
> > > ListAccessImpl<PortalKey>(PortalKey.class, data), 10);
> > > }
> > > } else if (task instanceof PortalConfigTask.Save || task
> > > instanceof PortalConfigTask.Remove) {
> > > V result = super.execute(session, task);
> > >
> > > session.scheduleForEviction(SearchTask.FindSiteKey.PORTAL_KEY);
> > >
> > > session.scheduleForEviction(SearchTask.FindSiteKey.GROUP_KEY);
> > > return result;
> > > }
> > > }
> > >
> > > //
> > > return super.execute(session, task);
> > > }
> > >
> > > With the current change of version in exo.core, the getSession() in
> > > POMSessionManager is always null, so a NPE is thrown breaking the POM
> > > service.
> > >
> > > I wonder how I can integrate these new changes to have same behaviour
> that
> > > previous version.
> > >
> > > Thanks,
> > > Lucas
> > >
> > >
> > > ----- Mensaje original -----
> > > > De: "Nicolas Filotto" <nicolas.filotto at exoplatform.com>
> > > > Para: "Lucas Ponce" <lponce at redhat.com>
> > > > CC: "gatein-dev" <gatein-dev at lists.jboss.org>
> > > > Enviados: Jueves, 28 de Noviembre 2013 17:29:27
> > > > Asunto: Re: [gatein-dev] SessionManagerContainer in
> exo.kernel.container
> > > 2.6.0-Alpha3
> > > >
> > > > What is the need exactly ? Beeing able to scope a component to a
> Session?
> > > > If so it is now possible to define a scope to a component thanks to
> > > > https://jira.exoplatform.org/browse/KER-258. Out of the box, the
> kernel
> > > > supports the scope Singleton, ApplicationScoped and Dependent. By
> adding
> > > > some configuration you can extend the list to SessionScoped and
> > > > RequestScoped. Here is the configuration to add if you want both:
> > > >
> > > > <component>
> > > > <key>org.exoplatform.container.context.ContextManager</key>
> > > > <type>org.exoplatform.container.context.ContextManagerImpl</type>
> > > > <component-plugins>
> > > > <component-plugin>
> > > > <name>main-scopes</name>
> > > > <set-method>addContexts</set-method>
> > > > <type>org.exoplatform.container.context.ContextPlugin</type>
> > > > <init-params>
> > > > <object-param>
> > > > <name>request-scope</name>
> > > > <object type="org.exoplatform.container.context.RequestContext"/>
> > > > </object-param>
> > > > <object-param>
> > > > <name>session-scope</name>
> > > > <object type="org.exoplatform.container.context.SessionContext"/>
> > > > </object-param>
> > > > </init-params>
> > > > </component-plugin>
> > > > </component-plugins>
> > > > </component>
> > > >
> > > > Please note that the components that you want to scope to
> SessionScoped
> > > or
> > > > RequestScoped must be proxyable as they are normal scopes (which
> means
> > > that
> > > > you will access to the methods through a proxy and you must not
> access to
> > > > the fields directly), moreover components that you want to scope to
> > > > SessionScoped must be Serializable as SessionScoped is a passivating
> > > scope.
> > > >
> > > > Please also note that thanks to KER-252 you can use the annotations
> > > defined
> > > > in JSR 330 such as Inject
> > > >
> > > >
> > > > On Thu, Nov 28, 2013 at 3:36 PM, Lucas Ponce <lponce at redhat.com>
> wrote:
> > > >
> > > > > Hello,
> > > > >
> > > > > There is a issue in current master that is impacting to REST
> management
> > > > > services in GateIn.
> > > > >
> > > > > https://issues.jboss.org/browse/GTNPORTAL-3308
> > > > >
> > > > > Investigating it looks like that issue appears since migration to
> > > > > 2.6.0-Alpha3 core.
> > > > >
> > > > > Main symptom is a NPE in POMSessionManager class:
> > > > >
> > > > >
> > > > >
> > >
> https://github.com/gatein/gatein-portal/blob/428874e25ee9e6dada3fd1a54a4aa9f02f42d641/component/portal/src/main/java/org/exoplatform/portal/pom/config/POMSessionManager.java#L224-L229
> > > > >
> > > > > One of the changes of 2.6.0-Alpha3 is to drop the
> > > SessionManagerContainer
> > > > > interface from PortalContainer.
> > > > >
> > > > > Is there a workaround to access to same functionality in order to
> fix
> > > this
> > > > > issue ?
> > > > >
> > > > > Thanks in advance,
> > > > > Lucas
> > > > > _______________________________________________
> > > > > gatein-dev mailing list
> > > > > gatein-dev at lists.jboss.org
> > > > > https://lists.jboss.org/mailman/listinfo/gatein-dev
> > > > >
> > > >
> > >
> >
>
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