1. import java.util.HashMap;
  2. import java.util.Map;
  4. class HeaderValidator {
  6. public static boolean validateHeaders(Map<String, String> headers, Map<String, String> expectedHeaders) {
  7. if (headers == null || expectedHeaders == null) {
  8. return false; // Handle null cases
  9. }
  11. for (Map.Entry<String, String> expectedEntry : expectedHeaders.entrySet()) {
  12. String headerName = expectedEntry.getKey();
  13. String expectedValue = expectedEntry.getValue();
  15. if (!headers.containsKey(headerName)) {
  16. return false; // Required header missing
  17. }
  19. String actualValue = headers.get(headerName);
  21. if (!actualValue.equals(expectedValue)) {
  22. return false; // Header value mismatch
  23. }
  24. }
  26. return true; // All headers are valid
  27. }
  29. public static void main(String[] args) {
  30. // Example usage
  31. Map<String, String> actualHeaders = new HashMap<>();
  32. actualHeaders.put("Content-Type", "application/json");
  33. actualHeaders.put("X-Custom-Header", "someValue");
  35. Map<String, String> expectedHeaders = new HashMap<>();
  36. expectedHeaders.put("Content-Type", "application/json");
  37. expectedHeaders.put("X-Custom-Header", "someValue");
  38. expectedHeaders.put("Authorization", "Bearer validToken");
  41. boolean isValid = validateHeaders(actualHeaders, expectedHeaders);
  43. if (isValid) {
  44. System.out.println("Headers are valid.");
  45. } else {
  46. System.out.println("Headers are invalid.");
  47. }
  49. //Test case with missing header
  50. Map<String, String> actualHeaders2 = new HashMap<>();
  51. actualHeaders2.put("Content-Type", "application/json");
  53. boolean isValid2 = validateHeaders(actualHeaders2, expectedHeaders);
  54. if (isValid2) {
  55. System.out.println("Headers are valid.");
  56. } else {
  57. System.out.println("Headers are invalid.");
  58. }
  59. }
  60. }

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