René's example is taking me a long way. Also the explanation how I get ClassLevel Annotations.
But then I can only read ClassLevel Annotations Values if I have previously used a method annotation with "*@Around("execution(public * (..)) && @annotation(com.mycompany.MyAnnotation)")""
How can I get around this? How can I trigger an Aspect if a ClassLevel Annotation is set without going through a Method Execution?
I want to write a ClassLevel Annotation like
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target(value = { ElementType.METHOD, ElementType.TYPE })
@EnableSwagger2
@Import(SwaggerConfiguration.class)
public @interface EnableSwaggerApi {
String controllerPackage() default "foo.bar.ctrl";
}
It's importing the Configuration about "SwaggerConfiguration" where I want to receive the value of "controllerPackage"
@Aspect
public class SwaggerConfiguration {
@Value("${tom.swagger.controller.package:foo.bar.notset}")
private String controllerPackage;
@Value("${tom.swagger.api.version:1.0.0}")
private String apiVersion;
@Value("${spring.application.name:MyApplication}")
private String applicationName;
@Around("execution(public * *(..)) && @annotation(EnableSwaggerApi)")
public void procede(ProceedingJoinPoint call) throws Throwable {
MethodSignature signature = (MethodSignature) call.getSignature();
Method method = signature.getMethod();
Class<?> declaringClass = method.getDeclaringClass();
EnableSwaggerApi myAnnotation = declaringClass.getAnnotation(EnableSwaggerApi.class);
System.err.println("1 -> " + myAnnotation.controllerPackage()); // -> tko.backend.spring.ctrl
myAnnotation = method.getAnnotation(EnableSwaggerApi.class);
System.err.println("2 -> " + myAnnotation.controllerPackage()); // -> tko.backend.spring.SOMEOTHERSTUFF
// THIS WORKS, BUT JUST IF I USE THE @EnableSwaggerApi ON SOME METHOD!
// NOT ON CLASS
}
@Bean
public Docket swaggerApi() {
return new Docket(DocumentationType.SWAGGER_2)
.select()
.apis(RequestHandlerSelectors.basePackage("controllerPackage"))
.paths(PathSelectors.any())
.build()
.apiInfo(new ApiInfoBuilder().version(apiVersion).title(applicationName).description("Documentation " + applicationName + " API v" + apiVersion)
.build());
}
@Bean
public CorsFilter corsFilter() {
final UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
final CorsConfiguration config = new CorsConfiguration();
config.setAllowCredentials(true);
config.addAllowedOrigin("*");
config.addAllowedHeader("*");
config.addAllowedMethod("*");
source.registerCorsConfiguration("/v2/api-docs", config);
return new CorsFilter(source);
}
}
@EnableSwaggerApi(controllerPackage="tko.backend.spring.ctrl")
public class Application extends SpringBootServletInitializer {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class, Initializer.class);
}
@Bean
@EnableSwaggerApi(controllerPackage="tko.backend.spring.SOMEOTHERSTUFF")
public String initSwagger() {
return "some dummy";
}
}
How can I can rid of the annotation on initSwagger()? Since the Application.class is not known to SwaggerConfiguration (Swagger Stuff it's in a separate lib) I can't use simple reflection like
Application.class.getAnnotation(EnableSwaggerApi.class)