#35 springboot: custom metric - counter with aop

springboot/actuator/src/main/java/hello/ActuatorApplication.java

@@ -2,6 +2,7 @@ package hello;
 
 import hello.order.v0.OrderConfigV0;
 import hello.order.v1.OrderConfigV1;
+import hello.order.v2.OrderConfigV2;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.actuate.web.exchanges.InMemoryHttpExchangeRepository;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
@@ -9,7 +10,8 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Import;
 
 //@Import(OrderConfigV0.class)
-@Import(OrderConfigV1.class)
+//@Import(OrderConfigV1.class)
+@Import(OrderConfigV2.class)
 @SpringBootApplication(scanBasePackages = "hello.controller")
 public class ActuatorApplication {
 

springboot/actuator/src/main/java/hello/order/v2/OrderConfigV2.java

@@ -0,0 +1,21 @@
+package hello.order.v2;
+
+import hello.order.OrderService;
+import io.micrometer.core.aop.CountedAspect;
+import io.micrometer.core.instrument.MeterRegistry;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class OrderConfigV2 {
+
+    @Bean
+    public OrderService orderService() {
+        return new OrderServiceV2();
+    }
+
+    @Bean
+    public CountedAspect countedAspect(MeterRegistry registry) {
+        return new CountedAspect(registry);
+    }
+}

springboot/actuator/src/main/java/hello/order/v2/OrderServiceV2.java

@@ -0,0 +1,32 @@
+package hello.order.v2;
+
+import hello.order.OrderService;
+import io.micrometer.core.annotation.Counted;
+import lombok.extern.slf4j.Slf4j;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+@Slf4j
+public class OrderServiceV2 implements OrderService {
+
+    private final AtomicInteger stock = new AtomicInteger(100);
+
+    @Counted("my.order")
+    @Override
+    public void order() {
+        log.info("주문");
+        stock.decrementAndGet();
+    }
+
+    @Counted("my.order")
+    @Override
+    public void cancel() {
+        log.info("취소");
+        stock.incrementAndGet();
+    }
+
+    @Override
+    public AtomicInteger getStock() {
+        return stock;
+    }
+}