Initial Python rewrite

src.bak/main/java/com/example/controller/NotificationController.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.controller;
+
+import com.example.dto.dialogflow.notification.ExternalNotRequestDTO;
+import com.example.service.notification.NotificationManagerService;
+
+import jakarta.validation.Valid;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import reactor.core.publisher.Mono;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@RestController
+@RequestMapping("/api/v1/dialogflow")
+public class NotificationController {
+
+    private static final Logger logger = LoggerFactory.getLogger(ConversationController.class);
+    private final NotificationManagerService notificationManagerService;
+
+    public NotificationController(NotificationManagerService notificationManagerService) {
+        this.notificationManagerService = notificationManagerService;
+    }
+
+    @PostMapping("/notification")
+    public Mono<Void> processNotification(@Valid @RequestBody ExternalNotRequestDTO request) {
+        return notificationManagerService.processNotification(request)
+            .doOnSuccess(response -> logger.info("Successfully processed direct Dialogflow request"))
+            .doOnError(error -> logger.error("Error processing direct Dialogflow request: {}", error.getMessage(), error))
+            .then();
+    }     
+}