apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/spi/ldap/ApolloLdapAuthenticationProvider.java/ApolloLdapAuthenticationProvider/ApolloLdapAuthenticationProvider
class ApolloLdapAuthenticationProvider:  public ApolloLdapAuthenticationProvider(
      LdapAuthenticator authenticator,
      LdapExtendProperties properties) {
    super(authenticator);
    this.properties = properties;
  }