# File lib/soap/wsdlDriver.rb, line 268
    def initialize(host, wsdl, port, logdev)
      @host = host
      @wsdl = wsdl
      @port = port
      @logdev = logdev
      @soapaction = nil
      @options = setup_options
      @default_encodingstyle = nil
      @allow_unqualified_element = nil
      @generate_explicit_type = false
      @mapping_registry = nil           # for rpc unmarshal
      @wsdl_mapping_registry = nil      # for rpc marshal
      @wiredump_file_base = nil
      @mandatorycharset = nil
      @wsdl_elements = @wsdl.collect_elements
      @wsdl_types = @wsdl.collect_complextypes + @wsdl.collect_simpletypes
      @rpc_decode_typemap = @wsdl_types +
        @wsdl.soap_rpc_complextypes(port.find_binding)
      @wsdl_mapping_registry = Mapping::WSDLEncodedRegistry.new(
        @rpc_decode_typemap)
      @doc_mapper = Mapping::WSDLLiteralRegistry.new(
        @wsdl_types, @wsdl_elements)
      endpoint_url = @port.soap_address.location
      # Convert a map which key is QName, to a Hash which key is String.
      @operation = {}
      @port.inputoperation_map.each do |op_name, op_info|
        orgname = op_name.name
        name = XSD::CodeGen::GenSupport.safemethodname(orgname)
        @operation[name] = @operation[orgname] = op_info
        add_method_interface(op_info)
      end
      @proxy = ::SOAP::RPC::Proxy.new(endpoint_url, @soapaction, @options)
    end