apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/component/RetryableRestTemplate.java/RetryableRestTemplate/RetryableRestTemplate
class RetryableRestTemplate:  public RetryableRestTemplate(
      final @Lazy RestTemplateFactory restTemplateFactory,
      final @Lazy AdminServiceAddressLocator adminServiceAddressLocator,
      final PortalMetaDomainService portalMetaDomainService,
      final PortalConfig portalConfig
  ) {
    this.restTemplateFactory = restTemplateFactory;
    this.adminServiceAddressLocator = adminServiceAddressLocator;
    this.portalMetaDomainService = portalMetaDomainService;
    this.portalConfig = portalConfig;
  }