1. import java.util.HashMap;
  2. import java.util.Map;
  4. public class MessageQueueDiagnostics {
  6. private Map<String, Integer> queueErrors = new HashMap<>(); // Queue name -> Error count
  8. public void addError(String queueName) {
  9. queueErrors.put(queueName, queueErrors.getOrDefault(queueName, 0) + 1);
  10. }
  12. public Map<String, Integer> getQueueErrors() {
  13. return new HashMap<>(queueErrors); // Return a copy to prevent external modification
  14. }
  16. public void printDiagnostics() {
  17. if (queueErrors.isEmpty()) {
  18. System.out.println("No queue errors detected.");
  19. return;
  20. }
  22. System.out.println("Queue Error Diagnostics:");
  23. for (Map.Entry<String, Integer> entry : queueErrors.entrySet()) {
  24. System.out.println(" " + entry.getKey() + ": " + entry.getValue() + " errors");
  25. }
  26. }
  28. public static void main(String[] args) {
  29. MessageQueueDiagnostics diagnostics = new MessageQueueDiagnostics();
  31. // Simulate some errors
  32. diagnostics.addError("queue1");
  33. diagnostics.addError("queue2");
  34. diagnostics.addError("queue1");
  35. diagnostics.addError("queue3");
  37. diagnostics.printDiagnostics();
  39. Map<String, Integer> errors = diagnostics.getQueueErrors();
  40. System.out.println("\nError counts: " + errors);
  41. }
  42. }

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