1. import java.util.HashMap;
  2. import java.util.Map;
  4. public class CacheInvalidator {
  6. private static final Map<String, Long> urlCache = new HashMap<>(); // Cache to store URL parameters and expiration times
  8. /**
  9. * Invalidates the cache for a given URL parameter.
  10. * @param urlParameter The URL parameter to invalidate.
  11. */
  12. public static void invalidateCache(String urlParameter) {
  13. urlCache.remove(urlParameter); // Remove the entry from the cache
  14. }
  16. /**
  17. * Invalidates the cache for a specific duration (in milliseconds).
  18. * @param urlParameter The URL parameter to invalidate.
  19. * @param expirationTime The expiration time in milliseconds.
  20. */
  21. public static void invalidateCache(String urlParameter, long expirationTime) {
  22. urlCache.put(urlParameter, System.currentTimeMillis() + expirationTime); // Set expiration time
  23. }
  26. public static void main(String[] args) {
  27. // Example Usage:
  28. //Invalidate cache for a specific URL parameter
  29. invalidateCache("productId");
  31. //Invalidate cache with a specified expiration time
  32. invalidateCache("category", 60000); // Expires in 60 seconds
  33. }
  34. }

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