apollo-configservice/src/main/java/com/ctrip/framework/apollo/configservice/controller/ConfigController.java/ConfigController/ConfigController
class ConfigController:  public ConfigController(
      final ConfigService configService,
      final AppNamespaceServiceWithCache appNamespaceService,
      final NamespaceUtil namespaceUtil,
      final InstanceConfigAuditUtil instanceConfigAuditUtil,
      final Gson gson) {
    this.configService = configService;
    this.appNamespaceService = appNamespaceService;
    this.namespaceUtil = namespaceUtil;
    this.instanceConfigAuditUtil = instanceConfigAuditUtil;
    this.gson = gson;
  }