How to use Spring Autowired in a custom cxf interceptor?

Question

i seem to run into a small issue when using @Autowired into a custom cxf interceptor. My use case is that i want to log soap messages and send these using AMQP to another system. This process works for normal services etc. But whatever i do, the needed properties do not get autowired and stay null.

I checked the Spring DI log and the context is scanned and pickedup, so what am i missing?

Is this even possible in CXF interceptors?

@Component
public class LogInInterceptor extends AbstractSoapInterceptor {

    private @Value("#{rabbitMQProperties['rabbitmq.binding.log.soap']}")
    String binding;

    @Autowired
    AmqpTemplate amqpTemplate;

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

    @Override
    public void handleMessage(SoapMessage soapMessage) throws Fault {
        logIt(soapMessage);
    }

    private void logIt(SoapMessage message) throws Fault {
        // rest of the code omitted...!!!     
        amqpTemplate.convertAndSend(binding, buffer.toString());
    }

}

Answer 1

You can't mix @InInterceptors (a CXF annotation) and @Component (a Spring annotation). That will create two separate instances of your interceptor: the one whose dependencies are getting injected by Spring, and one created by CXF. (You are providing class names in the @InInterceptors annotation, not a bean ID, so CXF has no way of knowing that you already created an instance in the Spring context.)

Remove the @InInterceptors annotation and, in addition to the component scan:

<context:component-scan base-package="org.example.config"/>

You also need something like this in your application context:

<jaxws:endpoint id="myWebService" address="/MyWebService">
    <jaxws:inInterceptors>
        <ref bean="myInInterceptor" />
    </jaxws:inInterceptors>
</jaxws:endpoint>

Answer 2

I know this is an old question, but Jonathan W's answer helped me and I would like to add to it.

This is how I got custom interceptors and @Autowired to work with Spring Boot 1.3.1:

http://cxf.apache.org/docs/jax-ws-configuration.html

import java.util.Arrays;

import javax.jws.WebService;

import org.apache.cxf.Bus;
import org.apache.cxf.interceptor.LoggingInInterceptor;
import org.apache.cxf.jaxws.EndpointImpl;
import org.apache.cxf.transport.servlet.CXFServlet;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.embedded.ServletRegistrationBean;
import org.springframework.boot.context.web.SpringBootServletInitializer;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ImportResource;

@Configuration
@EnableAutoConfiguration
@ImportResource({ "classpath:META-INF/cxf/cxf.xml" })
public class Application extends SpringBootServletInitializer {

    @Autowired
    private ApplicationContext applicationContext;

    @Autowired
    private MyInterceptor myInterceptor;

    @Autowired
    private HelloWorldImpl helloWorldImpl;

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

    // Replaces the need for web.xml
    @Bean
    public ServletRegistrationBean servletRegistrationBean(ApplicationContext context) {
        return new ServletRegistrationBean(new CXFServlet(), "/api/*");
    }

    // Replaces cxf-servlet.xml
    @Bean
    // <jaxws:endpoint id="helloWorld" implementor="demo.spring.service.HelloWorldImpl" address="/HelloWorld"/>
    public EndpointImpl helloService() {
        Bus bus = (Bus) applicationContext.getBean(Bus.DEFAULT_BUS_ID);
        EndpointImpl endpoint = new EndpointImpl(bus, helloWorldImpl);

        // Set interceptors here
        endpoint.setInInterceptors(Arrays.asList(myInterceptor));

        endpoint.publish("/hello");
        return endpoint;
    }


    // Used when deploying to a standalone servlet container, i.e. tomcat
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(Application.class);
    }

    // Web service endpoint
    @WebService(endpointInterface = "demo.spring.service.HelloWorld")
    //@InInterceptors not defined here
    public static class HelloWorldImpl {

    }

    public static class MyInterceptor extends LoggingInInterceptor {
      // @Autowired works here
    }

}