Finish payment workflow

spring-boot-starters/spring-boot-starter-data-events/src/main/java/demo/domain/Action.java

@@ -1,10 +1,14 @@
 package demo.domain;
 
+import org.apache.log4j.Logger;
 import org.springframework.beans.BeansException;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextAware;
 import org.springframework.stereotype.Component;
 
+import java.util.Map;
+import java.util.function.Consumer;
+
 /**
  * An {@link Action} is a reference of a method. A function contains an address to the location of a method. A function
  * may contain meta-data that describes the inputs and outputs of a method. An action invokes a method annotated with
@@ -14,10 +18,19 @@ import org.springframework.stereotype.Component;
  */
 @Component
 public abstract class Action<A extends Aggregate> implements ApplicationContextAware {
+    private final Logger log = Logger.getLogger(Action.class);
     private ApplicationContext applicationContext;
 
     @Override
     public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
         this.applicationContext = applicationContext;
     }
+
+    protected Consumer<A> onSuccess(Map<String, Object> context) {
+        return a -> {};
+    }
+
+    protected Consumer<A> onError(Map<String, Object> context) {
+        return a -> {};
+    }
 }