@Override
  public QuotaMethod getQuotaMethod() {
    if (Objects.isNull(quotaChargeCallback)) {
      if (!operationName.equals(ReplicateBlobOperation.class.getSimpleName())) {
        LOGGER.warn("quota charge callback is null for operation: {}", operationName);
      }
      return null;
    }
    return quotaChargeCallback.getQuotaMethod();
  }
Constructor for {@link OperationQuotaCharger}.

@param quotaChargeCallback {@link QuotaChargeCallback} object to charge and check quotas.
@param operationName Name of the operation.
ambry-router/src/main/java/com/github/ambry/router/OperationQuotaCharger.java