work on different mechanisms of accessing the currently authenticated principal

spring-security-rest-custom/src/main/java/org/baeldung/security/AuthenticationFacade.java

@@ -0,0 +1,21 @@
+package org.baeldung.security;
+
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.stereotype.Component;
+
+@Component
+public class AuthenticationFacade implements IAuthenticationFacade {
+
+    public AuthenticationFacade() {
+        super();
+    }
+
+    // API
+
+    @Override
+    public final Authentication getAuthentication() {
+        return SecurityContextHolder.getContext().getAuthentication();
+    }
+
+}