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From "Daniel Kulp (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CXF-1494) Issue Using JAX-RS / REST When AOP Proxy In Place
Date Thu, 10 Apr 2008 13:34:08 GMT

    [ https://issues.apache.org/jira/browse/CXF-1494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12587635#action_12587635
] 

Daniel Kulp commented on CXF-1494:
----------------------------------


Sergey/Steve,

I haven't looked at the code, but I'm pretty sure I know what the problem is....

In the proxy case, the Method object that is used to determine the annotations cannot be the
method object that is used to do the invoke.   It's kind of a strang case, but the proxy isn't
actually an instance of the class.  (it works in the cglib case, as it's a generated subclass
that overrides the method).  Most likely what needs to be done it use the Class cls = ClassHelper.getRealClass(...)
to get the class for the lookup of the methods for the annotations, but then if cls.isInstance(obj)
returns false, you'll need to call obj.getClass() and find the corresponding method on that
to really do the invoke.

Dan

> Issue Using JAX-RS / REST When AOP Proxy In Place
> -------------------------------------------------
>
>                 Key: CXF-1494
>                 URL: https://issues.apache.org/jira/browse/CXF-1494
>             Project: CXF
>          Issue Type: Bug
>          Components: REST
>    Affects Versions: 2.1
>            Reporter: Steve Ardis
>            Assignee: Sergey Beryozkin
>             Fix For: 2.1
>
>         Attachments: beans.xml, cxf-1494.patch, Test.java
>
>
> If your beans.xml contains the following entry:
> <jaxrs:server id="services" address="/">
>     <jaxrs:serviceBeans>
>         <ref bean="test" />
>     </jaxrs:serviceBeans>
> </jaxrs:server>
> <bean id="test" class="test.rest.Test" />
> And you have a Spring AOP pointcut defined as:
> <aop:config>
>     <aop:pointcut id="testOperations" expression="execution(* test.rest.*.*(..))"
/>
>     <aop:advisor advice-ref="transactionAdvice" pointcut-ref="testOperations" />
> </aop:config>
> no mapping to the test bean are mapped and method cannot be invoked - it fails with "No
operation found for path: /test/string/"
> If you comment out the contents of <aop:config> everything works fine.
> This link describes the problem with JAX-WS and the same issue probably applies to JAX-RS:
> http://incubator.apache.org/cxf/faq.html#FAQ-WhenusingSpringAOPtoenablethingsliketransactionsandsecurity%252CthegeneratedWSDLisverymessedupwithwrongnamespaces%252Cpartnames%252Cetc...
> However, the solution provided in the link does not work due to differences in the APIs
between JAX-WS and JAX-RS.
> I have a dumbed-down Maven project that I can zip up and provide if necessary.
> Is there a suggested way around this problem for JAX-RS?
> Is there a reason that, if the instance of the class that JAX-RS sees is a proxy object,
that it can't get the underlying class information by drilling into the proxy object, thereby
eliminating the necessity to define the serviceClass information (as in the JAX-WS "fix")?
 Ideally , I'd like to be able to do the following:
> <jaxrs:server id="services" address="/">
>     <jaxrs:serviceBeans>
>         <ref bean="test1" />
>         <ref bean="test2" />
>         <ref bean="test3" />
>     </jaxrs:serviceBeans>
> </jaxrs:server>
> without having to define separate jaxrs server(s) (as in the JAX-WS "fix").

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