How can I override "ribbonServerListFilter" - spring-cloud

Question

I want to be able to override the default Spring Cloud 'ribbonServerListFilter' implementation. I have read the docs but I always get an error regarding a bean it cannot find (IClientConfig).
So I have a simple class like:
#Configuration
public class FooConfiguration {
#Bean
public ServerListFilter<Server> ribbonServerListFilter(IClientConfig config) {
MyListFilter filter = new MyListFilter();
filter.initWithNiwsConfig(config);
return filter;
}
}
and:
#Configuration
#RibbonClient(name = "foo", configuration = FooConfiguration.class)
public class TestConfiguration {
}
But then at runtime I get:
org.springframework.beans.factory.UnsatisfiedDependencyException: \
Error creating bean with name 'ribbonServerListFilter' defined in class path \
resource [FooConfiguration.class]: Unsatisfied dependency expressed through \
constructor argument with index 0 of type \
[com.netflix.client.config.IClientConfig]: : No qualifying bean of type \
[com.netflix.client.config.IClientConfig] found for dependency
So what am I doing wrong?
This is with Spring Boot 1.3.1.RELEASE.
Thanks in advance.
Henry
UPDATE:
Adding full source after Dave's comments.
package com.domain1;
...
#Configuration
public class FooConfiguration {
#Bean
public ServerListFilter<Server> ribbonServerListFilter(IClientConfig config) {
System.out.println("My ribbonServerListFilter will be used");
MyListFilter filter = new MyListFilter();
filter.initWithNiwsConfig(config);
return filter;
}
}
package com.domain1;
...
public class MyListFilter extends ZonePreferenceServerListFilter {
#Override
public List<Server> getFilteredListOfServers(List<Server> servers) {
System.out.println("This is my version");
return super.getFilteredListOfServers(servers);
}
}
And the main application in a different package:
package com.domain2;
...
#Configuration
#RibbonClient(name = "foo", configuration = FooConfiguration.class)
public class TestConfiguration {
}
package com.domain2;
...
#Component
#Configuration
public class Runner implements CommandLineRunner {
#Autowired
private DiscoveryClient discoveryClient;
#Autowired
private LoadBalancerClient loadBalancer;
public void run(String... strings) throws Exception {
System.out.println("all");
for (ServiceInstance s : discoveryClient.getInstances("service")) {
System.out.println(s.getHost() + ":" + s.getPort());
}
System.out.println("from lb");
ServiceInstance instance = loadBalancer.choose("service");
System.out.println(instance.getHost() + ":" + instance.getPort());
}
}
package com.domain2;
...
#EnableDiscoveryClient
#SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
So in the second test when calling 'loadBalancer.choose' I expected my code to be called.

Answer 1

You have to make sure your FooConfiguration is not component scanned. Put it in a separate package not under the main application, or don't use #ComponentScan.