Spring Global ClientInterceptor

Question

I have a legacy application that consumes lots of customer services. Lately, it is required to add a custom http security header per request. One way is to add a ClientInterceptor per WebServiceTemplate but I feel like it is a bit code repeat. Is there a way to apply a global ClientInterceptor ?

As I said this is a legacy system which is still built on top of Spring Fw 3.2.2.RELEASE and spring-ws 2.0.6-RELEASE

Answer 1

You can implement a general ClientInterceptor, something like this:

public class AddCustomSecurityHeader implements ClientInterceptor {

    @Override
    public boolean handleRequest(MessageContext messageContext) throws WebServiceClientException {
       TransportContext context = TransportContextHolder.getTransportContext();
       HttpComponentsConnection connection =(HttpComponentsConnection) context.getConnection();
       connection.addRequestHeader("custom-security-header", "lorem ipsum");

       return true;
    }
}

Then you declare a @Bean of type WebServiceTemplate:

@Bean
public WebServiceTemplate webServiceTemplate() {
    WebServiceTemplate webServiceTemplate = new WebServiceTemplate();
    // add your current configuration here

    ClientInterceptor[] interceptors = {new AddCustomSecurityHeader()};
    webServiceTemplate.setInterceptors(interceptors);
    return webServiceTemplate;
}

I hope it helps!