    # File lib/fog/xenserver.rb, line 55
          def initialize
            require 'nokogiri/xml/sax/document'
            require 'nokogiri/xml/sax/parser'

            @parser_class = Class.new(Nokogiri::XML::SAX::Document) do

              include XMLRPC::XMLParser::StreamParserMixin

              alias_method :start_element, :startElement
              alias_method :end_element,   :endElement
              alias_method :characters,    :character
              alias_method :cdata_block,   :character

              def parse(str)
                Nokogiri::XML::SAX::Parser.new(self).parse(str)
              end

            end
          end