public static boolean shouldThrottle(QuotaAction quotaAction) {
    return quotaAction != QuotaAction.ALLOW;
  }
Returns {@code true} if request should be throttled. {@code false} otherwise.
@param quotaAction {@link QuotaAction} specifying the action to take for quota compliance.
@return {@code true} if request should be throttled. {@code false} otherwise.
ambry-quota/src/main/java/com/github/ambry/quota/QuotaUtils.java