I found a workaround to this matter. It's possible to lookup the ConversationContext
and Conversation Storage from the HttpServletRequest through request attribute:
AbstractConversationContext.CONVERSATIONS_ATTRIBUTE_NAME
So now I'm able to hook into the storage bound to the HttpRequest:
// this method returns a map, hence the conversation map (and context) is available in
request scope
@SuppressWarnings("unchecked")
private Map<String, Object> getHttpRequestConversationStorage() {
Map<String, Object> convsersationMap = (Map<String, Object>)
httpRequest.getAttribute(CONVERSATIONS_ATTRIBUTE_NAME);
return convsersationMap;
}
// beanManager.getContext(ConversationScoped.class); throws ContextNotActiveException but
this method resolves the ConversationContext
private void selectHttpConversationContext() {
ctx =
Container.instance().deploymentManager().instance().select(Context.class).select(HttpConversationContext.class).get();
ctx.activate();
}
private void cleanupHttpConversation() {
if (ctx != null && ctx.isActive()) {
ctx.deactivate();
HttpConversationContext httpContext =
HttpConversationContext.class.cast(ctx);
httpContext.activate(null);
}
}
This seems to be a bug to what I understand. Should I create a JIRA and provide a test
case?
On Jan 17, 2012, at 3:30 AM, Jason Porter wrote:
Sent from my iPhone
On Jan 16, 2012, at 19:06, George Gastaldi <gegastaldi(a)gmail.com> wrote:
> Jason,
>
> You're Right, i completely forgot about the multiple entry view approach.
>
> But since Ove didnt mentioned about multiple views, I assumed JSF is the only entry
point, which adding REST may be overengineering.
Yes, that would be true. How many apps now days, that are public facing, only need one
view though?
>
> Em 17/01/2012, às 00:00, Jason Porter <lightguard.jp(a)gmail.com> escreveu:
>
>>
>>
>> Sent from my iPhone
>>
>> On Jan 16, 2012, at 18:46, George Gastaldi <gegastaldi(a)gmail.com> wrote:
>>
>>> One solution is to have a backend store for the conversation scoped beans
(Infinispan maybe ?) and never mess with the session. Probably the conversation Ids should
be unique as well, so you must generate them uniquely.
>>
>> My thoughts.
>>
>>> Since you are using JSF, why not queueing events using the ajax support in
JSF 2.0+? Adding REST services with JSF sounds like an action based solution which may
subestimate the power of the JSF itself.
>>
>> Not if you have multiple entries into the app. If you do it right, all the
business logic ends up going through the REST classes. You could simply inject the REST
classes and use them like normal POJOs in JSF backing beans, an entry into the app using
HTML5, GWT, desktop client, native mobile client, etc. it's actually a very good
separation if you need multiple entry points into the app. This essentially boils down to
one common entry point, multiple views. I think it's quickly becoming my preferred
architecture.
>>
>>> My two cents ;)
>>>
>>> Regards,
>>>
>>> George Gastaldi
>>>
>>> Em 16/01/2012, às 22:27, Jason Porter <lightguard.jp(a)gmail.com>
escreveu:
>>>
>>>> I'll have to think on this some more.
>>>>
>>>> On Mon, Jan 16, 2012 at 16:36, Ove Ranheim <oranheim(a)gmail.com>
wrote:
>>>> The REST service beans are usually scoped RequestScoped. Mixing REST and
JSF is really useful, just like it works with Remoting and JSF. I use the latter quite a
lot when 1) JSF component doesn't do what I want it to do, and 2) I need to send some
UI state info back to the server; like what tab in a tabview is selected etc. What would
be the appropriate way to handle this? Since REST is REST, we don't want to mess up
the session store and have the back-end operate incorrectly.
>>>>
>>>> However, would it be possible to demote the conversion scoped beans to
request scoped beans? From a programmatic point of view, it all boils down to being able
to interact with ConversationScoped beans from a RequestScoped REST bean. If not, a more
comprehensive implementation/architecture must take place. In a mixed environment
(JSF/REST), you're likely to delegate business logic to Dependent scoped beans, and
proxy two delegates 1) into a ConversationScoped JSF bean variant, and/or 2) RequestScoped
REST bean variant. Hence, you'd end up with one dependent scoped impl bean, with two
scoped variants. When the object graph expands, it'll be complex to maintain. This has
a clear impact.
>>>>
>>>> Btw, how's this done in Remoting to back JSF?
>>>>
>>>>
>>>> On Jan 17, 2012, at 12:20 AM, Jason Porter wrote:
>>>>
>>>>> I agree that Conversations should be supported for other connections
besides JSF, however, with REST or any web service call there is a problem about tying a
request to a session, you'd either have to have the client's support sending
cookies in their requests or create store like a session yourself. If you go with the
latter approach then it should be fairly easy to (well, as easy as creating passivation
capable scopes is) to create a scope that would work with this cache / store.
>>>>>
>>>>> If it is a regression, please create a JIRA with attached Arquillian
test(s).
>>>>>
>>>>> On Mon, Jan 16, 2012 at 16:03, Ove Ranheim <oranheim(a)gmail.com>
wrote:
>>>>> The below test case impl doesn't track any sessions and the
conversation only survives per method call. So the lifecycle to it isn't proper :)
It's nothing more than a workaround.
>>>>>
>>>>> It'd be better to have support for ConversationScope in Seam
REST. Maybe I'm doing something wrong here, but my code case is as simple as:
>>>>>
>>>>> 1) PU produces a ConversationScoped entity manager in Seam
Persistence
>>>>>
>>>>> 2) The REST service makes a call to a Stateful ConversationScoped
bean, in which invokes the ConversationScoped PU
>>>>>
>>>>> 3) REST service beans are used to accommodate natural REST crud on
top of a JSF page.
>>>>>
>>>>> That's all there are to it. The deployment includes solder,
faces, international, persistence, transaction, security, conversation-{weld and spi} and
rest. I'm investigating ways to make a hybrid model that uses JSF and REST. So far so
good, except for the aforementioned.
>>>>>
>>>>> On Jan 16, 2012, at 11:50 PM, Jason Porter wrote:
>>>>>
>>>>>> Since you're using REST, how are you tracking the session? If
don't have some way of doing that you'll end up possibly creating a new session /
conversation with each request because it isn't tied to the same session.
>>>>>>
>>>>>> On Mon, Jan 16, 2012 at 15:35, Ove Ranheim
<oranheim(a)gmail.com> wrote:
>>>>>> Jason,
>>>>>>
>>>>>> Thanks for your feedback and maybe this is a regression. I made
an interceptor to make my test code work, but I'm not sure what implication it'll
have in a production environment.
>>>>>>
>>>>>> Ove
>>>>>>
>>>>>> @InterceptorBinding
>>>>>> @Target({ TYPE, METHOD })
>>>>>> @Retention(RetentionPolicy.RUNTIME)
>>>>>> public @interface ConversationAware {
>>>>>> }
>>>>>>
>>>>>> @ConversationAware
>>>>>> @Interceptor
>>>>>> public class ConversationHandler implements Serializable {
>>>>>>
>>>>>> private static final long serialVersionUID =
-6414852756277060457L;
>>>>>>
>>>>>> private BoundConversationContext ctx;
>>>>>> private BoundRequest request;
>>>>>>
>>>>>> private void createBoundConversationRequest() {
>>>>>> request = new MutableBoundRequest(new HashMap<String,
Object>(), new HashMap<String, Object>());
>>>>>> }
>>>>>>
>>>>>> private void selectBoundConversationContext() {
>>>>>> ctx =
Container.instance().deploymentManager().instance().select(BoundConversationContext.class).get();
>>>>>> ctx.associate(request);
>>>>>> ctx.activate();
>>>>>> }
>>>>>>
>>>>>> private void cleanupBoundConversation() {
>>>>>> if (ctx != null && ctx.isActive()) {
>>>>>> ctx.deactivate();
>>>>>> ctx.dissociate(request);
>>>>>> }
>>>>>> }
>>>>>>
>>>>>> @AroundInvoke
>>>>>> public Object handle(InvocationContext ctx) throws Exception
{
>>>>>> if (ctx.getMethod().isAnnotationPresent(
ConversationAware.class )) {
>>>>>> createBoundConversationRequest();
>>>>>> try {
>>>>>> selectBoundConversationContext();
>>>>>> return ctx.proceed();
>>>>>> } finally {
>>>>>> cleanupBoundConversation();
>>>>>> }
>>>>>> }
>>>>>> return null;
>>>>>> }
>>>>>> }
>>>>>>
>>>>>> @GET
>>>>>> @Path("/{id:[0-9][0-9]*}")
>>>>>> @Produces(MediaType.APPLICATION_JSON)
>>>>>> @ConversationAware
>>>>>> public Pojo lookupPojoById(@PathParam("id") Long id) {
>>>>>> // do something
>>>>>> }
>>>>>>
>>>>>>
>>>>>> On Jan 16, 2012, at 9:45 PM, Jason Porter wrote:
>>>>>>
>>>>>>> I'd have to go through the seam conversation code as it
is not documented. But I don't think the interceptor will work as in REST there
isn't really a session to tie the conversation to.
>>>>>>>
>>>>>>> Sent from my iPhone
>>>>>>>
>>>>>>> On Jan 16, 2012, at 13:35, Ove Ranheim
<oranheim(a)gmail.com> wrote:
>>>>>>>
>>>>>>>> I have configured
class>org.jboss.seam.faces.context.conversation.ConversationBoundaryInterceptor</class>
in WEB-INF/beans.xml and seam-faces is used. In fact I use both JSF and REST.
>>>>>>>>
>>>>>>>> Anything else that needs to be wired up?
>>>>>>>>
>>>>>>>> On Jan 16, 2012, at 9:14 PM, Jason Porter wrote:
>>>>>>>>
>>>>>>>>> If you're using Seam Conversation and starting
the conversation it will work. Out of the box, conversations don't work outside JSF.
>>>>>>>>>
>>>>>>>>> Sent from my iPhone
>>>>>>>>>
>>>>>>>>> On Jan 16, 2012, at 13:04, Ove Ranheim
<oranheim(a)gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> Hi guys,
>>>>>>>>>>
>>>>>>>>>> I'm getting a "WELD-001303 No active
contexts for scope type javax.enterprise.context.ConversationScoped" when making a
call to a REST service that invokes a ConversationScoped bean.
>>>>>>>>>>
>>>>>>>>>> Did I miss a configuration setting, or isn't
ConversationScoped supported?
>>>>>>>>>>
>>>>>>>>>> Ove
>>>>>>>>>>
>>>>>>>>>> javax.ejb.EJBTransactionRolledbackException:
WELD-001303 No active contexts for scope type javax.enterprise.context.ConversationScoped
>>>>>>>>>>
org.jboss.as.ejb3.tx.CMTTxInterceptor.handleInCallerTx(CMTTxInterceptor.java:133)
>>>>>>>>>>
org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInCallerTx(CMTTxInterceptor.java:196)
>>>>>>>>>>
org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:286)
>>>>>>>>>>
org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:182)
>>>>>>>>>>
org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:287)
>>>>>>>>>>
org.jboss.as.ejb3.component.session.SessionInvocationContextInterceptor.processInvocation(SessionInvocationContextInterceptor.java:71)
>>>>>>>>>>
org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:287)
>>>>>>>>>>
org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61)
>>>>>>>>>>
org.jboss.as.ee.component.ViewDescription$1.processInvocation(ViewDescription.java:146)
>>>>>>>>>>
org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:287)
>>>>>>>>>>
org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61)
>>>>>>>>>>
org.jboss.as.ee.component.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:76)
>>>>>>>>>>
com.parts.apartment.management.ApartmentService$$$view2.listApartmentUnits(Unknown
Source)
>>>>>>>>>>
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>>>>>>>>>
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>>>>>>>>>
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>>>>>>>>>
java.lang.reflect.Method.invoke(Method.java:597)
>>>>>>>>>>
org.jboss.weld.util.reflection.SecureReflections$13.work(SecureReflections.java:305)
>>>>>>>>>>
org.jboss.weld.util.reflection.SecureReflectionAccess.run(SecureReflectionAccess.java:54)
>>>>>>>>>>
org.jboss.weld.util.reflection.SecureReflectionAccess.runAsInvocation(SecureReflectionAccess.java:163)
>>>>>>>>>>
org.jboss.weld.util.reflection.SecureReflections.invoke(SecureReflections.java:299)
>>>>>>>>>>
org.jboss.weld.bean.proxy.EnterpriseBeanProxyMethodHandler.invoke(EnterpriseBeanProxyMethodHandler.java:125)
>>>>>>>>>>
org.jboss.weld.bean.proxy.EnterpriseTargetBeanInstance.invoke(EnterpriseTargetBeanInstance.java:62)
>>>>>>>>>>
org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:125)
>>>>>>>>>>
com.parts.apartment.management.ApartmentService$Proxy$_$$_Weld$Proxy$.listApartmentUnits(ApartmentService$Proxy$_$$_Weld$Proxy$.java)
>>>>>>>>>>
com.parts.apartment.management.ApartmentService$Proxy$_$$_WeldClientProxy.listApartmentUnits(ApartmentService$Proxy$_$$_WeldClientProxy.java)
>>>>>>>>>>
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>>>>>>>>>
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>>>>>>>>>
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>>>>>>>>>
java.lang.reflect.Method.invoke(Method.java:597)
>>>>>>>>>>
org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:140)
>>>>>>>>>>
org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:255)
>>>>>>>>>>
org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:220)
>>>>>>>>>>
org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:209)
>>>>>>>>>>
org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:519)
>>>>>>>>>>
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:496)
>>>>>>>>>>
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119)
>>>>>>>>>>
org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208)
>>>>>>>>>>
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55)
>>>>>>>>>>
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50)
>>>>>>>>>>
javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
>>>>>>>>>>
org.jboss.weld.servlet.ConversationPropagationFilter.doFilter(ConversationPropagationFilter.java:67)
>>>>>>>>>>
org.jboss.solder.servlet.exception.CatchExceptionFilter.doFilter(CatchExceptionFilter.java:65)
>>>>>>>>>>
org.jboss.solder.servlet.event.ServletEventBridgeFilter.doFilter(ServletEventBridgeFilter.java:74)
>>>>>>>>>>
com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:126)
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> seam-dev mailing list
>>>>>>>>>> seam-dev(a)lists.jboss.org
>>>>>>>>>>
https://lists.jboss.org/mailman/listinfo/seam-dev
>>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Jason Porter
>>>>>>
http://lightguard-jp.blogspot.com
>>>>>>
http://twitter.com/lightguardjp
>>>>>>
>>>>>> Software Engineer
>>>>>> Open Source Advocate
>>>>>> Author of Seam Catch - Next Generation Java Exception Handling
>>>>>>
>>>>>> PGP key id: 926CCFF5
>>>>>> PGP key available at:
keyserver.net,
pgp.mit.edu
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Jason Porter
>>>>>
http://lightguard-jp.blogspot.com
>>>>>
http://twitter.com/lightguardjp
>>>>>
>>>>> Software Engineer
>>>>> Open Source Advocate
>>>>> Author of Seam Catch - Next Generation Java Exception Handling
>>>>>
>>>>> PGP key id: 926CCFF5
>>>>> PGP key available at:
keyserver.net,
pgp.mit.edu
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Jason Porter
>>>>
http://lightguard-jp.blogspot.com
>>>>
http://twitter.com/lightguardjp
>>>>
>>>> Software Engineer
>>>> Open Source Advocate
>>>> Author of Seam Catch - Next Generation Java Exception Handling
>>>>
>>>> PGP key id: 926CCFF5
>>>> PGP key available at:
keyserver.net,
pgp.mit.edu
>>>> _______________________________________________
>>>> seam-dev mailing list
>>>> seam-dev(a)lists.jboss.org
>>>>
https://lists.jboss.org/mailman/listinfo/seam-dev