# File lib/active_ldap/connection.rb, line 90
      def instantiate_adapter(config)
        adapter = (config[:adapter] || "ldap")
        normalized_adapter = adapter.downcase.gsub(/-/, "_")
        adapter_method = "#{normalized_adapter}_connection"
        unless Adapter::Base.respond_to?(adapter_method)
          raise AdapterNotFound.new(adapter)
        end
        if config.has_key?(:ldap_scope)
          logger.warning do
            _(":ldap_scope connection option is deprecated. Use :scope instead.")
          end
          config[:scope] ||= config.delete(:ldap_scope)
        end
        config = remove_connection_related_configuration(config)
        Adapter::Base.send(adapter_method, config)
      end