1. import java.util.HashMap;
  2. import java.util.Map;
  4. public class ConfigUtil {
  6. private static final Map<String, String> config = new HashMap<>();
  8. public static void loadConfig() {
  9. // Simulate loading config from a file or environment
  10. config.put("timeout", "10");
  11. config.put("retries", "3");
  12. config.put("url", "http://localhost:8080");
  13. }
  15. public static String get(String key) {
  16. try {
  17. return config.get(key);
  18. } catch (Exception e) {
  19. //Suppress configuration value errors.
  20. System.err.println("Error getting config value for key: " + key + ". Using default.");
  21. return "default_value"; //Provide a default value
  22. }
  23. }
  25. public static String execute(String operation) {
  26. // Simulate an operation with retry logic
  27. int retries = Integer.parseInt(get("retries"));
  28. int attempt = 0;
  29. while (attempt < retries) {
  30. try {
  31. // Perform the operation
  32. System.out.println("Attempting operation: " + operation);
  33. return "Success"; // Simulate success
  34. } catch (Exception e) {
  35. attempt++;
  36. if (attempt < retries) {
  37. System.out.println("Operation failed. Retrying attempt: " + attempt);
  38. try {
  39. Thread.sleep(1000); // Wait before retrying
  40. } catch (InterruptedException ie) {
  41. Thread.currentThread().interrupt();
  42. }
  43. } else {
  44. System.err.println("Operation failed after " + retries + " attempts.");
  45. return "Failure"; // Simulate failure after all retries
  46. }
  47. }
  48. }
  49. return "Failure";
  50. }
  52. public static void main(String[] args) {
  53. loadConfig();
  54. String timeout = get("timeout");
  55. System.out.println("Timeout: " + timeout);
  57. String result = execute("Simulated operation");
  58. System.out.println("Operation result: " + result);
  60. String nonExistentValue = get("nonExistentKey");
  61. System.out.println("Non existent Key: " + nonExistentValue);
  62. }
  63. }

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