[Updated] Finished Frontend, Added statushandling to backend and frontend [Todo: session token handling at lvl 2]

2024-11-01 17:02:24 +01:00
parent 3188f6ce20
commit 675bdc7f8e
16 changed files with 247 additions and 102 deletions
@@ -0,0 +1,83 @@
+package com.ninjaws.quiz.services;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.ninjaws.quiz.models.ApiResponse;
+import com.ninjaws.quiz.models.Session;
+
+@Service
+public class ResponseHandlingService {
+
+    @Autowired
+    private CacheService cacheService;
+
+    /**
+     * If there is no sessionId, then this is a request from the scheduler
+     * purely to stock in the database No Cache call is required
+     */
+    public void handleResponse(String sessionId, ApiResponse response) throws IllegalStateException {
+
+        Session session = cacheService.getFromCache(sessionId);
+        if (session == null) {
+            // Critical system failure: Should never occur
+            throw new IllegalStateException("Session should be defined!");
+        }
+
+        switch (response.getResponseCode()) {
+            case 0:
+                // Nothing
+                updateSessionInCache(session, response);
+                break;
+            case 1:
+                // Not enough questions to satisfy the request. 
+                updateSessionInCache(session, response);
+                break;
+            case 2:
+                // Invalid parameters
+                updateSessionInCache(session, response);
+                break;
+            case 3:
+                // If it expired. Shouldn't happen since the backup database is full within 40 minutes, and the code lasts for 6 hours
+                // Return a statuscode 1 to signal an issue, just in case a user hits this situation (should not happen)
+                session.setStatusCode(1);
+                updateSessionInCache(session, response);
+            case 4:
+                // It returns nothing, the previous batch was the last one
+                // Return a statuscode 1 to the user
+                session.setStatusCode(1);
+                updateSessionInCache(session, response);
+                break;
+            case 5:
+                // Should be prevented by the scheduler
+            default:
+                break;
+        }
+    }
+
+    /**
+     * If the request was made by the scheduler during queue-downtime, there is no session
+     */
+    public void switchInternal(ApiResponse response) {
+        switch (response.getResponseCode()) {
+            case 0:
+                // TODO: Store in DB
+                break;
+            case 4:
+                // Signal DataService that we have extracted all the data. Stop gathering, switch to caching-mode
+                // TODO: Signal DB that it's full, start db-swapping process
+                break;
+            case 5:
+                // Should be prevented by the scheduler
+            default:
+                break;
+        }
+    }
+
+    private void updateSessionInCache(Session session, ApiResponse response) {
+        session.setStatusCode(response.getResponseCode());
+        session.setQuestions(response.getResults());
+        cacheService.addToCache(session.getId(), session);
+    }
+
+}