1. import time
  2. import random
  4. def retry_record_operation(record, operation, max_retries=3, retry_delay=2):
  5. """
  6. Retries an operation on a user record with fallback logic.
  8. Args:
  9. record: The user record (can be any data structure).
  10. operation: A function that performs the operation on the record.
  11. max_retries: The maximum number of retry attempts.
  12. retry_delay: The delay (in seconds) between retries.
  14. Returns:
  15. The result of the operation if successful, otherwise None.
  16. """
  18. for attempt in range(max_retries):
  19. try:
  20. result = operation(record) # Execute the operation
  21. print(f"Operation successful on attempt {attempt + 1}")
  22. return result # Return the result if successful
  23. except Exception as e:
  24. print(f"Operation failed on attempt {attempt + 1}: {e}")
  25. if attempt < max_retries - 1:
  26. print(f"Retrying in {retry_delay} seconds...")
  27. time.sleep(retry_delay + random.uniform(0, 1)) # Add a little randomness
  28. else:
  29. print("Max retries reached. Operation failed.")
  30. # Fallback logic - handle the failure gracefully
  31. print("Falling back to default value/alternative action.")
  32. return None # or some default value/action
  34. def example_operation(record):
  35. """
  36. Example operation that might fail (e.g., network call).
  37. """
  38. if random.random() < 0.5: # Simulate a 50% chance of failure
  39. raise ValueError("Simulated error during operation.")
  40. else:
  41. return f"Operation successful for {record}"
  44. if __name__ == '__main__':
  45. # Example usage
  46. user_record = {"user_id": 123, "name": "John Doe"}
  48. operation_result = retry_record_operation(user_record, example_operation)
  50. if operation_result:
  51. print(f"Final result: {operation_result}")
  52. else:
  53. print("Operation failed after multiple retries.")

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