Retry & Fallback 是利器还是魔咒？

<dependency>
    <groupId>org.springframework.retry</groupId>
    <artifactId>spring-retry</artifactId>
</dependency>
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<dependency>
    <groupId>com.geekhalo.lego</groupId>
    <artifactId>lego-starter</artifactId>
    <version>0.1.17</version>
</dependency>
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@EnableRetry
@Configuration
public class RetryConfiguration {
}
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public interface ActionTypeProvider {
    ActionType get();
}
public enum ActionType {
    COMMAND, QUERY
}
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public class ActionContext {
    private static final ThreadLocal<ActionType> ACTION_TYPE_THREAD_LOCAL = new ThreadLocal<>();
    public static void set(ActionType actionType){
        ACTION_TYPE_THREAD_LOCAL.set(actionType);
    }
    public static ActionType get(){
        return ACTION_TYPE_THREAD_LOCAL.get();
    }
    public static void clear(){
        ACTION_TYPE_THREAD_LOCAL.remove();
    }
}
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@Component
public class ActionBasedActionTypeProvider implements ActionTypeProvider {
    @Override
    public ActionType get(){
        return ActionContext.get();
    }
}
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@Target({ ElementType.METHOD, ElementType.TYPE })
@Retention(RetentionPolicy.RUNTIME)
public @interface Action {
    ActionType type();
}
@Aspect
@Component
@Order(Integer.MIN_VALUE)
public class ActionAspect {
    @Pointcut("@annotation(com.geekhalo.lego.faultrecovery.smart.Action)")
    public void pointcut() {
    }
    @Around(value = "pointcut()")
    public Object action(ProceedingJoinPoint joinPoint) throws Throwable {
        MethodSignature methodSignature = (MethodSignature) joinPoint.getSignature();
        Action annotation = methodSignature.getMethod().getAnnotation(Action.class);
        ActionContext.set(annotation.type());
        try {
            return joinPoint.proceed();
        }finally {
            ActionContext.clear();
        }
    }
}
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@Service
@Slf4j
@Getter
public class RetryService3 {
    private int count = 0;
    private int retryCount = 0;
    private int fallbackCount = 0;
    private int recoverCount = 0;
    public void clean(){
        this.retryCount = 0;
        this.fallbackCount = 0;
        this.recoverCount = 0;
    }
    /**
    * Command 请求，启动重试机制
    */
    @Action(type = ActionType.COMMAND)
    @SmartFault(recover = "recover")
    public Long retry(Long input) throws Throwable{
        this.retryCount ++;
        return doSomething(input);
    }
    /**
    * Query 请求，启动Fallback机制
    */
    @Action(type = ActionType.QUERY)
    @SmartFault(recover = "recover")
    public Long fallback(Long input) throws Throwable{
        this.fallbackCount ++;
        return doSomething(input);
    }
    @Recover
    public Long recover(Throwable e, Long input){
        this.recoverCount ++;
        log.info("recover-{}", input);
        return input;
    }
    private Long doSomething(Long input) {
        // 偶数抛出异常
        if (count ++ % 2 == 0){
            log.info("Error-{}", input);
            throw new RuntimeException();
        }
        log.info("Success-{}", input);
        return input;
    }
}
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@SpringBootTest(classes = DemoApplication.class)
public class RetryService3Test {
    @Autowired
    private RetryService3 retryService;
    @BeforeEach
    public void setup(){
        retryService.clean();
    }
    @Test
    public void retry() throws Throwable{
        for (int i = 0; i < 100; i++){
            retryService.retry(i + 0L);
        }
        Assertions.assertTrue(retryService.getRetryCount() > 0);
        Assertions.assertTrue(retryService.getRecoverCount() == 0);
        Assertions.assertTrue(retryService.getFallbackCount() == 0);
    }
    @Test
    public void fallback() throws Throwable{
        for (int i = 0; i < 100; i++){
            retryService.fallback(i + 0L);
        }
        Assertions.assertTrue(retryService.getRetryCount() == 0);
        Assertions.assertTrue(retryService.getRecoverCount() > 0);
        Assertions.assertTrue(retryService.getFallbackCount() > 0);
    }
}
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[main] c.g.l.c.f.smart.SmartFaultExecutor       : action type is COMMAND
[main] c.g.l.faultrecovery.smart.RetryService3  : Error-0
[main] c.g.l.c.f.smart.SmartFaultExecutor       : Retry method public java.lang.Long com.geekhalo.lego.faultrecovery.smart.RetryService3.retry(java.lang.Long) throws java.lang.Throwable use [0]
[main] c.g.l.faultrecovery.smart.RetryService3  : Success-0
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[main] c.g.l.c.f.smart.SmartFaultExecutor       : action type is QUERY
[main] c.g.l.faultrecovery.smart.RetryService3  : Error-0
[main] c.g.l.c.f.smart.SmartFaultExecutor       : recover From ERROR for method ReflectiveMethodInvocation: public java.lang.Long com.geekhalo.lego.faultrecovery.smart.RetryService3.fallback(java.lang.Long) throws java.lang.Throwable; target is of class [com.geekhalo.lego.faultrecovery.smart.RetryService3]
[main] c.g.l.faultrecovery.smart.RetryService3  : recover-0
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