Created UserCertificationWorker

FabApprovalWorkerService/Workers/UserCertificationWorker.cs

@@ -0,0 +1,69 @@
+using FabApprovalWorkerService.Models;
+using FabApprovalWorkerService.Services;
+
+using Infineon.Monitoring.MonA;
+
+using Quartz;
+
+using System.Text;
+
+namespace FabApprovalWorkerService.Workers;
+
+public class UserCertificationWorker : IJob {
+    private static readonly int MAX_RETRIES = 3;
+    private static readonly int BACKOFF_SECONDS = 30;
+    
+    private readonly ILogger<UserCertificationWorker> _logger;
+    private readonly IUserService _userService;
+    private readonly IMonInClient _monInClient;
+
+    public UserCertificationWorker(ILogger<UserCertificationWorker> logger,
+                                   IUserService userService,
+                                   IMonInClient monInClient) {
+        _logger = logger ?? throw new ArgumentNullException("ILogger not injected");
+        _userService = userService ?? throw new ArgumentNullException("IUserService not injected");
+        _monInClient = monInClient ?? throw new ArgumentNullException("IMonInClient not injected");
+    }
+
+    public async Task Execute(IJobExecutionContext context) {
+        DateTime start = DateTime.Now;
+        bool isInternalError = false;
+        string metricName = "UserCertificationWorker";
+
+        try {
+            int remainingRetries = MAX_RETRIES;
+            bool isSuccessful = false;
+
+            while (!isSuccessful && remainingRetries > 0) {
+                await Task.Delay((MAX_RETRIES - remainingRetries--) * BACKOFF_SECONDS);
+
+                _logger.LogInformation($"Attempting to update user certification data. Remaining retries: {remainingRetries}");
+
+                IEnumerable<UserCertificationRecord> certRecords = await _userService.GetUserCertificationRecords();
+                isSuccessful = await _userService.UpdateUserCertificationData(certRecords);
+            }
+
+            if (isSuccessful) {
+                _logger.LogInformation("Successfully updated user certification data.");
+            } else {
+                throw new Exception("Unable to update user certification data.");
+            }
+        } catch (Exception ex) {
+            StringBuilder errMsgBuilder = new();
+            errMsgBuilder.Append("An exception occurred when attempting to update user certification data. ");
+            errMsgBuilder.Append($"Exception: {ex.Message}");
+            _logger.LogError(errMsgBuilder.ToString());
+            isInternalError = true;
+        } finally {
+            DateTime end = DateTime.Now;
+            double latencyInMS = (end - start).TotalMilliseconds;
+            _monInClient.PostMetric(metricName + "Latency", latencyInMS);
+
+            if (isInternalError) {
+                _monInClient.PostStatus(metricName, State.Critical);
+            } else {
+                _monInClient.PostStatus(metricName, State.Ok);
+            }
+        }
+    }
+}