Code example for Cache

Methods: getIfPresent

0
    if (!sessionToken.isPresent()) {
      return Optional.absent();
    } 
 
    // Check the cache 
    Optional<UserDto> clientUser = Optional.fromNullable(sessionTokenCache.getIfPresent(sessionToken.get()));
 
    // TODO What is a better way of implementing this? 
    if (clientUser.isPresent()) {
      // Ensure we refresh the cache on a check to maintain the session timeout 
      sessionTokenCache.put(clientUser.get().getSessionToken(), clientUser.get());
    } 
 
    return clientUser;
 
  } 
 
  /** 
   * @param sessionToken The session token to use to locate the user 
   * @param clientUser   The client user to cache 
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