1. import java.util.HashMap;
  2. import java.util.Map;
  4. public class EnvironmentValidator {
  6. /**
  7. * Validates environment variables against specified limits.
  8. * @param env The system's environment variables.
  9. * @param limits A map defining the maximum allowed length for each environment variable.
  10. * @return A map of violated environment variables and their values. Returns an empty map if all variables are valid.
  11. */
  12. public static Map<String, String> validateEnvironment(Map<String, String> env, Map<String, Integer> limits) {
  13. Map<String, String> violations = new HashMap<>();
  15. if (env == null || limits == null) {
  16. return violations; // Return empty map if input is invalid
  17. }
  19. for (Map.Entry<String, String> entry : env.entrySet()) {
  20. String variableName = entry.getKey();
  21. String variableValue = entry.getValue();
  23. if (limits.containsKey(variableName)) {
  24. int maxLength = limits.get(variableName);
  25. if (variableValue.length() > maxLength) {
  26. violations.put(variableName, variableValue);
  27. }
  28. }
  29. }
  31. return violations;
  32. }
  34. public static void main(String[] args) {
  35. // Example Usage
  36. Map<String, String> environment = new HashMap<>();
  37. environment.put("MY_VARIABLE", "This is a test string");
  38. environment.put("ANOTHER_VARIABLE", "A very long string that exceeds the limit");
  39. environment.put("SHORT_VAR", "short");
  41. Map<String, Integer> limits = new HashMap<>();
  42. limits.put("MY_VARIABLE", 20);
  43. limits.put("ANOTHER_VARIABLE", 10);
  46. Map<String, String> violations = validateEnvironment(environment, limits);
  48. if (violations.isEmpty()) {
  49. System.out.println("All environment variables are valid.");
  50. } else {
  51. System.out.println("The following environment variables exceed their limits:");
  52. for (Map.Entry<String, String> entry : violations.entrySet()) {
  53. System.out.println(entry.getKey() + " = " + entry.getValue());
  54. }
  55. }
  56. }
  57. }

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