service implementation class info at start up

[sambit <sa...@walmartlabs.com>]

Hi,
  I have a use case where i want to get the details of the service
implementation class mapped to a jaxrs:serviceBean for a jaxrs:server at
runtime during start up. 

<jaxrs:server address="http://localhost:8080/jaxrs">
  <jaxrs:serviceBeans>
     <ref bean="serviceBean" />
  </jaxrs:serviceBeans>
</jaxrs:server>

Is there a way, i can get a handle to ClassResourceInfo at server start up
from where i can find out the implementation class details.  





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Re: service implementation class info at start up

[Sergey Beryozkin <sb...@gmail.com>]

Hi
On 26/08/13 18:06, sambit wrote:
> Hi,
>    I have a use case where i want to get the details of the service
> implementation class mapped to a jaxrs:serviceBean for a jaxrs:server at
> runtime during start up.
>
> <jaxrs:server address="http://localhost:8080/jaxrs">
>    <jaxrs:serviceBeans>
>       <ref bean="serviceBean" />
>    </jaxrs:serviceBeans>
> </jaxrs:server>
>
> Is there a way, i can get a handle to ClassResourceInfo at server start up
> from where i can find out the implementation class details.
>

Perhaps you may want to experiment with
http://jax-rs-spec.java.net/nonav/2.0/apidocs/javax/ws/rs/container/DynamicFeature.html

The runtime will callback providing ResourceInfo for all service beans,
http://jax-rs-spec.java.net/nonav/2.0/apidocs/javax/ws/rs/container/ResourceInfo.html

so that 2.0 filters or writers can be dynamically bound. I guess you can 
even use this feature simply to do some other checks on ResourceInfo.

CXF also ships ServerLifecycleListener, very useful article from Oliver 
can be found here:

http://owulff.blogspot.ie/2011/10/how-to-enable-interceptor-without.html

If you go this route, in your listener implementation, you can do

Service service = server.getEndpoint().getService();
((JAXRSServiceImpl)service).getClassResourceInfos();

this will return a list of all service bean representations

HTH, Sergey

>
>
>
>
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