1. import java.util.HashMap;
  2. import java.util.Map;
  4. public class MetadataAnomalyChecker {
  6. /**
  7. * Checks metadata for anomalies based on default values.
  8. *
  9. * @param metadata A map containing metadata values. Key is the metadata field name,
  10. * value is the metadata value.
  11. * @param defaultValues A map containing default values for each metadata field.
  12. * @return A map of anomalous metadata fields. Key is the field name, value is the
  13. * anomalous value. Returns an empty map if no anomalies are found.
  14. */
  15. public static Map<String, Object> checkForAnomalies(Map<String, Object> metadata, Map<String, Object> defaultValues) {
  16. Map<String, Object> anomalies = new HashMap<>();
  18. if (metadata == null || defaultValues == null) {
  19. return anomalies; // Return empty map for null inputs
  20. }
  22. for (Map.Entry<String, Object> entry : metadata.entrySet()) {
  23. String fieldName = entry.getKey();
  24. Object metadataValue = entry.getValue();
  26. if (defaultValues.containsKey(fieldName)) {
  27. Object defaultValue = defaultValues.get(fieldName);
  29. if (!metadataValue.equals(defaultValue)) {
  30. anomalies.put(fieldName, metadataValue);
  31. }
  32. }
  33. }
  35. return anomalies;
  36. }
  38. public static void main(String[] args) {
  39. // Example Usage
  40. Map<String, Object> metadata = new HashMap<>();
  41. metadata.put("status", "active");
  42. metadata.put("owner", "john.doe");
  43. metadata.put("version", 1.2);
  45. Map<String, Object> defaultValues = new HashMap<>();
  46. defaultValues.put("status", "inactive");
  47. defaultValues.put("owner", "default_user");
  48. defaultValues.put("version", 1.0);
  50. Map<String, Object> anomalies = checkForAnomalies(metadata, defaultValues);
  52. if (!anomalies.isEmpty()) {
  53. System.out.println("Anomalies found:");
  54. for (Map.Entry<String, Object> entry : anomalies.entrySet()) {
  55. System.out.println(entry.getKey() + ": " + entry.getValue());
  56. }
  57. } else {
  58. System.out.println("No anomalies found.");
  59. }
  60. }
  61. }

Add your comment