import project

src/main/java/org/acme/UserObserver.java

@@ -0,0 +1,30 @@
+package org.acme;
+
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.enterprise.event.Observes;
+import jakarta.enterprise.event.TransactionPhase;
+import jakarta.inject.Inject;
+import org.jboss.logging.Logger;
+
+@ApplicationScoped
+public class UserObserver {
+    private final Logger log = Logger.getLogger(UserObserver.class);
+
+    private final EventCollector eventCollector;
+
+    @Inject
+    public UserObserver(EventCollector eventCollector) {
+        this.eventCollector = eventCollector;
+    }
+
+    public void onCreation(@Observes(during = TransactionPhase.AFTER_SUCCESS) UserCreated event) {
+        log.info("Arrived event for user " + event.getUsername());
+        eventCollector.register(User.class.getCanonicalName(), event);
+    }
+
+    public void onDelete(@Observes(during = TransactionPhase.AFTER_SUCCESS) UserDeleted event) {
+        log.info("Arrived event for deletion user " + event.getId());
+        eventCollector.register(User.class.getCanonicalName(), event);
+    }
+
+}