# File lib/active_ldap/connection.rb, line 115
      def retrieve_connection
        conn = nil
        name = active_connection_name
        raise ConnectionNotEstablished unless name
        conn = active_connections[name]
        if conn.nil?
          config = configuration(name)
          raise ConnectionNotEstablished unless config
          self.connection = config
          conn = active_connections[name]
        end
        raise ConnectionNotEstablished if conn.nil?
        conn
      end