How to use @Inject or @EJB in a CXF interceptor context?

Question

Is there a way to use @Inject or @EJB in a CXF interceptor? I know I can still do a JNDI lookup but I'd rather avoid it.

I find it weird that JAX-WS handlers are managed but CXF interceptors are not. Is it possible to make them managed? I'm using annotations to add my interceptors to the endpoint (@org.apache.cxf.interceptor.InInterceptors and @org.apache.cxf.interceptor.InInterceptors), could it be handled with a configuration file?

Configuration:

Java 6
JBoss EAP 6.1 (AS 7.2)
CXF 2.6.6

@ulab No, no update as far as I know, CXF interceptors are still not managed by the container. But if you use CDI 1.1+, you can use CDI.current(), see https://stackoverflow.com/questions/24798529/how-to-programmatically-inject-a-java-cdi-managed-bean-into-a-local-variable-in — Virginie, Nov 17 '17 at 15:20
Thank you for the response. I had just figured it and got it working that way. And yes I use Wildfly which supports JEE 7. — ulab, Nov 17 '17 at 15:28
@ulab: I'm quite curious how you got this to work.. If I use the constructor of the interceptor to lookup by means of CDI.current() I get: WFLYWELD0039: Singleton not set for org.jboss.ws.common.utils.DelegateClassLoader — Sjaak, May 28 '19 at 06:36
@Sjaak my use case was simple. I tried to get in `handleMessge()` and not in the constructor. Please see my answer below. — ulab, May 29 '19 at 08:55
@ulab. Thanks. That would be very similar to having a request scoped lookup. Since there is a jndi lookup behind the object I factorise I was looking for a lookup with the same scope as the bean, which implements the webservice. But I realize I can possibly work around this with an application scoped bean producing the remote bean I actually need in order to be more efficient (save jndi lookup) — Sjaak, May 30 '19 at 09:32
It all feels a bit clunky. Would be so much better if I could directly inject on the constructor of the interceptor — Sjaak, May 30 '19 at 09:33

score 2 · Answer 1 · answered May 29 '19 at 08:54

I have injected with the help of CDI 1.1 as below.

beans.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="
      http://java.sun.com/xml/ns/javaee 
      http://java.sun.com/xml/ns/javaee/beans_1_0.xsd">
</beans>

cxf-servlet.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:cxf="http://cxf.apache.org/core"
    xsi:schemaLocation="
http://cxf.apache.org/core http://cxf.apache.org/schemas/core.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id="callerInfoInterceptor" class="my.CallerInfoInterceptor" />

    <cxf:bus>
        <cxf:inInterceptors>
            <ref bean="callerInfoInterceptor" />
        </cxf:inInterceptors>
        <cxf:properties>
            ......
            .....
        </cxf:properties>
    </cxf:bus>

</beans>

CallerInfoInterceptor.java (CXF Interceptor)

public class CallerInfoInterceptor extends AbstractPhaseInterceptor<Message>  {

    @Inject CallerInfoBean callerInfo; // bean

    public CallerInfoInterceptor() {
        super(Phase.RECEIVE);
    }

    @Override
    public void handleMessage(Message message){
     ...........

     if (callerInfo == null) {
            callerInfo =  
          javax.enterprise.inject.spi.CDI.current().select(CallerInfoBean.class).get();
        }
    }

How to use @Inject or @EJB in a CXF interceptor context?

1 Answers1