def add_to_schema(cls, schemaDict, nsmap):
        if not cls.get_datatype(nsmap) in schemaDict:
            for k, v in cls.soap_members.items():
                v.add_to_schema(schemaDict, nsmap)

            schema_node = create_xml_element(
                nsmap.get("xs") + "complexType", nsmap)
            schema_node.set('name', cls.__name__)

            sequence_node = create_xml_subelement(
                schema_node, nsmap.get('xs') + 'sequence')
            for k, v in cls.soap_members.items():
                member_node = create_xml_subelement(
                    sequence_node, nsmap.get('xs') + 'element')
                member_node.set('name', k)
                member_node.set('minOccurs', '0')
                member_node.set('type',
                    "%s:%s" % (v.get_namespace_id(), v.get_datatype()))

            typeElement = create_xml_element(
                nsmap.get('xs') + 'element', nsmap)
            typeElement.set('name', cls.__name__)
            typeElement.set('type',
                "%s:%s" % (cls.get_namespace_id(), cls.__name__))
            schemaDict[cls.get_datatype(nsmap)+'Complex'] = schema_node
            schemaDict[cls.get_datatype(nsmap)] = typeElement

    def _add_messages_for_methods(self, root, methods, nsmap):
        """
        A private method for adding message elements to the wsdl
        @param the the root element of the wsdl
        @param the list of methods.
        """
        messages = []
        # make messages
        for method in methods:
            methodName = method.name
            # making in part
            inMessage = create_xml_element("message", nsmap)
            inMessage.set("name", method.inMessage.typ)

            if len(method.inMessage.params) > 0:
                inPart = create_xml_subelement(inMessage, "part")
                inPart.set("name", method.inMessage.name)
                inPart.set("element", "tns:" + method.inMessage.typ)

            messages.append(inMessage)

            # making out part
            outMessage = create_xml_element("message", nsmap)
            outMessage.set("name", method.outMessage.typ)
            if len(method.outMessage.params) > 0:
                outPart = create_xml_subelement(outMessage, "part")
                outPart.set("name", method.outMessage.name)
                outPart.set("element", "tns:" + method.outMessage.typ)
            messages.append(outMessage)

        for message in messages:
            root.append(message)

    def _add_messages_for_methods(self, root, methods, nsmap):
        '''
        A private method for adding message elements to the wsdl
        @param the the root element of the wsdl
        @param the list of methods.
        '''
        messages = []
        #make messages
        for method in methods:
            methodName = method.name
            # making in part
            inMessage = create_xml_element('message', nsmap)
            inMessage.set('name', method.inMessage.typ)

            inPart = create_xml_subelement(inMessage, 'part')
            inPart.set('name', method.inMessage.name)
            inPart.set('element', 'tns:' + method.inMessage.typ)

            messages.append(inMessage)

            # making out part only if necessary
            if len(method.outMessage.params) > 0:
                outMessage = create_xml_element('message', nsmap)
                outMessage.set('name', method.outMessage.typ)
                outPart = create_xml_subelement(outMessage, 'part')
                outPart.set('name', method.outMessage.name)
                outPart.set('element', 'tns:' + method.outMessage.typ)
                messages.append(outMessage)

        for message in messages:
            root.append(message)

    def add_to_schema(self,schema_dict,nsmap):
        typ = self.get_datatype()
        
        self.serializer.add_to_schema(schema_dict, nsmap)

        if not schema_dict.has_key(typ):

            complexTypeNode = create_xml_element(
                nsmap.get('xs') + 'complexType', nsmap)
            complexTypeNode.set('name',self.get_datatype())

            sequenceNode = create_xml_subelement(
                complexTypeNode, nsmap.get('xs') + 'sequence')
            elementNode = create_xml_subelement(
                sequenceNode, nsmap.get('xs') + 'element')
            elementNode.set('minOccurs','0')
            elementNode.set('maxOccurs','unbounded')
            print self.serializer.get_namespace_id()
            elementNode.set('type',
                "%s:%s" % (self.serializer.get_namespace_id(), self.serializer.get_datatype()))
            elementNode.set('name',self.serializer.get_datatype())

            typeElement = create_xml_element(
                nsmap.get('xs') + 'element', nsmap)
            typeElement.set('name',typ)
            typeElement.set('type',
                "%s:%s" % (self.namespace_id, self.get_datatype()))
            
            schema_dict['%sElement'%(self.get_datatype(nsmap))] = typeElement
            schema_dict[self.get_datatype(nsmap)] = complexTypeNode

def make_soap_fault(faultString, faultCode = 'Server', detail = None, 
    header_elements = None):
    '''
    This method populates a soap fault message with the provided 
    fault string and details.  
    @param faultString the short description of the error
    @param detail the details of the exception, such as a stack trace
    @param faultCode defaults to 'Server', but can be overridden
    @param header_elements A list of XML elements to add to the fault header.
    @returns the element corresponding to the fault message
    '''
    
    nsmap = NamespaceLookup()
    envelope = create_xml_element(nsmap.get('SOAP-ENV') + 'Envelope', nsmap)
    
    if header_elements:
        header = create_xml_subelement(
            envelope, nsmap.get('SOAP-ENV') + 'Header')
        for element in header_elements:
            header.append(element)
    
    body = create_xml_subelement(envelope, nsmap.get('SOAP-ENV') + 'Body')

    f = Fault(faultCode,faultString,detail)
    body.append(Fault.to_xml(f, nsmap.get('SOAP-ENV') + "Fault", nsmap))

    return envelope

    def to_xml(self, *data):
        if len(self.params):
            if len(self.params) >= 2:
                data = data[0]
            if len(data) != len(self.params):
                raise Exception(
                    "Parameter number mismatch expected [%s] "
                    "got [%s] for response %s" % (len(self.params), len(data), self.name)
                )

        nsmap = NamespaceLookup(self.ns)
        element = create_xml_element(self.name, nsmap, self.ns)

        for i in range(0, len(self.params)):
            name, serializer = self.params[i]
            d = data[i]
            e = serializer.to_xml(d, name, nsmap)
            if type(e) in (list, tuple):
                elist = e
                for e in elist:
                    element.append(e)
            elif e == None:
                pass
            else:
                element.append(e)

        ElementTree.cleanup_namespaces(element)
        return element

def make_soap_envelope(message, tns='', header_elements=None):
    '''
    This method takes the results from a soap method call, and wraps them
    in the appropriate soap envelope with any specified headers

    @param the message of the soap envelope, either an element or
           a list of elements
    @param any header elements to be included in the soap response
    @returns the envelope element
    '''
    nsmap = NamespaceLookup(tns)
    envelope = create_xml_element(nsmap.get('SOAP-ENV') + 'Envelope', nsmap,
        tns)
    if header_elements:
        headerElement = create_xml_subelement(envelope,
            nsmap.get('SOAP-ENV') + 'Header')
        for h in header_elements:
            headerElement.append(h)
    body = create_xml_subelement(envelope, nsmap.get('SOAP-ENV') + 'Body')
    if type(message) == list:
        for m in message:
            body.append(m)
    elif message != None:
        body.append(message)
    return envelope

    def to_xml(cls, value, name='retval', nsmap=ns):
        '''This class method takes the data from the attachment and
        base64 encodes it as the text of an Element. An attachment can
        specify a filename and if no data is given, it will read the data
        from the file
        '''
        if value.__class__ is not Attachment:
            raise Exception("Do not know how to serialize class %s" %
                type(value))

        element = create_xml_element(name, nsmap)
        if value.data:
            # the data has already been loaded, just encode
            # and return the element
            element.text = base64.encodestring(value.data)
        elif value.fileName:
            # the data hasn't been loaded, but a file has been
            # specified
            data_string = cStringIO.StringIO()

            fileName = value.fileName
            file = open(fileName, 'rb')
            base64.encode(file, data_string)
            file.close()

            # go back to the begining of the data
            data_string.seek(0)
            element.text = str(data_string.read())
        else:
            raise Exception("Neither data nor a filename has been specified")

        return element

    def to_xml(cls, value, name='retval', nsmap=ns):
        element = create_xml_element(
            nsmap.get(cls.get_namespace_id()) + name, nsmap)

        ####################################################
        # RJBALEST: Added 31-Oct-09
        # Because namespaces are not getting output,
        # explicitly set xmlns as an attribute.
        # Otherwise .NET will reject the message.
        #
        xmlns = nsmap.nsmap[cls.get_namespace_id()]
        element.set('xmlns', xmlns)
        ####################################################

        for k, v in cls.soap_members.items():
            member_value = getattr(value, k, None)

            subvalue = getattr(value, k, None)
            if subvalue is None:
                v = Null

            subelements = v.to_xml(subvalue, name=k, nsmap=nsmap)
            if type(subelements) != list:
                subelements = [subelements]
            for s in subelements:
                element.append(s)
        return element

    def add_to_schema(self, schemaDict, nsmap):
        complexType = create_xml_element(nsmap.get("xs") + "complexType", nsmap)
        complexType.set("name", self.typ)

        sequence = create_xml_subelement(complexType, nsmap.get("xs") + "sequence")
        if self.params:
            for name, serializer in self.params:
                e = create_xml_subelement(sequence, nsmap.get("xs") + "element")
                e.set("name", name)
                e.set("type", "%s:%s" % (serializer.get_namespace_id(), serializer.get_datatype()))

        element = create_xml_element(nsmap.get("xs") + "element", nsmap)
        element.set("name", self.typ)
        element.set("type", "%s:%s" % ("tns", self.typ))

        schemaDict[self.typ] = complexType
        schemaDict[self.typ + "Element"] = element

def _generic_to_xml(value, name, cls, nsmap):
    retval = create_xml_element(name, nsmap)
    if value:
        retval.text = value
    retval.set(
        nsmap.get('xsi') + 'type',
        "%s:%s" % (cls.get_namespace_id(), cls.get_datatype()))
    return retval

 def add_to_schema(self,schemaDict, nsmap):
     complexType = create_xml_element(nsmap.get('xs') + 'complexType', nsmap)
     complexType.set('name',self.typ)
     
     sequence = create_xml_subelement(complexType, nsmap.get('xs') + 'sequence')
     if self.params:
         for name,serializer in self.params:
             e = create_xml_subelement(sequence, nsmap.get('xs') + 'element')
             e.set('name',name)
             e.set('type',
                 "%s:%s" % (serializer.get_namespace_id(), serializer.get_datatype()))
             
     element = create_xml_element(nsmap.get('xs') + 'element', nsmap)
     element.set('name',self.typ)
     element.set('type','%s:%s' % ('tns',self.typ))
     
     schemaDict[self.typ] = complexType
     schemaDict[self.typ+'Element'] = element

    def test_utcdatetime(self):
        datestring = '2007-05-15T13:40:44Z'
        e = create_xml_element('test', ns)
        e.text = datestring

        dt = DateTime.from_xml(e)

        self.assertEquals(dt.year, 2007)
        self.assertEquals(dt.month, 5)
        self.assertEquals(dt.day, 15)

        datestring = '2007-05-15T13:40:44.003Z'
        e = create_xml_element('test', ns)
        e.text = datestring

        dt = DateTime.from_xml(e)

        self.assertEquals(dt.year, 2007)
        self.assertEquals(dt.month, 5)
        self.assertEquals(dt.day, 15)

def _unicode_to_xml(value, name, cls, nsmap):
    retval = create_xml_element(name, nsmap)
    if value == None:
        return Null.to_xml(value,name,nsmap)
    if type(value) == unicode:
        retval.text = value
    else: 
        retval.text = unicode(value,string_encoding)
    retval.set(
        nsmap.get('xsi') + 'type', 
        "%s:%s" % (cls.get_namespace_id(), cls.get_datatype()))
    return retval

 def to_xml(self,values,name='retval',nsmap=ns):
     res = create_xml_element(name, nsmap)
     typ = self.get_datatype(nsmap)
     if values == None:
         values = []
     res.set('type', 
         "%s:%s" % (self.get_namespace_id(), self.get_datatype()))
     for value in values:
         serializer = self.serializer
         if value == None:
             serializer = Null
         res.append(
             serializer.to_xml(value, serializer.get_datatype(), nsmap))
     return res    

    def to_xml(cls,value,name='retval', nsmap=ns):
        element = create_xml_element(
            nsmap.get(cls.get_namespace_id()) + name, nsmap)
        
        for k,v in cls.soap_members.items():
            member_value = getattr(value,k,None)    

            subvalue = getattr(value,k,None)
            if subvalue is None:
                v = Null
                
            subelements = v.to_xml(subvalue,name=k,nsmap=nsmap)
            if type(subelements) != list:
                subelements = [subelements]
            for s in subelements:
                element.append(s)
        return element

    def to_xml(cls, value, name='retval', nsmap=ns):
        element = create_xml_element(
            nsmap.get(cls.get_namespace_id()) + name, nsmap)

        # Because namespaces are not getting output, explicitly set xmlns as an
        # attribute. Otherwise .NET will reject the message.
        if None not in nsmap.nsmap and cls.get_namespace_id() in nsmap.nsmap:
            xmlns = nsmap.nsmap[cls.get_namespace_id()]
            element.set('xmlns', xmlns)
        
        for k, v in cls.soap_members.items():
            subvalue = getattr(value, k, None)
            subelements = v.to_xml(subvalue, name=k, nsmap=nsmap)
            if type(subelements) != list:
                subelements = [subelements]
            for s in subelements:
                element.append(s)
        return element

def make_soap_envelope(message, tns='', header_elements=None):
    '''
    This method takes the results from a soap method call, and wraps them
    in the appropriate soap envelope with any specified headers

    @param the message of the soap envelope, either an element or
           a list of elements
    @param any header elements to be included in the soap response
    @returns the envelope element
    '''
    nsmap = NamespaceLookup(tns)
    envelope = create_xml_element(nsmap.get('SOAP-ENV') + 'Envelope', nsmap,
        tns)
    if header_elements:
        headerElement = create_xml_subelement(envelope,
            nsmap.get('SOAP-ENV') + 'Header')
        for h in header_elements:
            headerElement.append(h)
    body = create_xml_subelement(envelope, nsmap.get('SOAP-ENV') + 'Body')

    ######################################
    # RJBALEST: 
    # Get the default namespace 
    #
    xmlns = message.nsmap[None]
    ######################################

    if type(message) == list:
        for m in message:
            body.append(m)
    elif message != None:
        body.append(message)

    ######################################
    # RJBALEST:
    # Set xmlns as a normal attribute so it doesn't 
    # get cleanup up and is guaranteed to remain.
    #
    message.set('xmlns', xmlns)                                                                                   
    ######################################

    return envelope

    def wsdl(self, url):
        '''
        This method generates and caches the wsdl for this object based
        on the soap methods designated by the soapmethod or soapdocument
        descriptors
        @param url the url that this service can be found at.  This must be
        passed in by the caller because this object has no notion of the
        server environment in which it runs.
        @returns the string of the wsdl
        '''
        if not self.__wsdl__ == None:
            # return the cached __wsdl__
            return self.__wsdl__
        url = url.replace('.wsdl', '')
        # otherwise build it
        serviceName = self.__class__.__name__.split('.')[-1]

        tns = self.__tns__
        methods = self.methods()
        hasCallbacks = self._hasCallbacks()

        nsmap = NamespaceLookup(tns, True)
        if hasCallbacks:
            nsmap.set('wsa',
                'http://schemas.xmlsoap.org/ws/2003/03/addressing')

        root = create_xml_element(
            "definitions", nsmap, 'http://schemas.xmlsoap.org/wsdl/')
        root.set('targetNamespace', tns)
        root.set('name', serviceName)

        types = create_xml_subelement(root, "types")

        self._add_schema(types, methods, nsmap)
        self._add_messages_for_methods(root, methods, nsmap)

        # add necessary async headers
        # WS-Addressing -> RelatesTo ReplyTo MessageID
        # callback porttype
        if hasCallbacks:
            wsaSchemaNode = create_xml_subelement(types, "schema")
            wsaSchemaNode.set("targetNamespace", tns+'Callback')
            wsaSchemaNode.set("xmlns", "http://www.w3.org/2001/XMLSchema")
            wsaSchemaNode.set("elementFormDefault", "qualified")

            importNode = create_xml_subelement(wsaSchemaNode, "import")
            importNode.set("namespace",
                "http://schemas.xmlsoap.org/ws/2003/03/addressing")
            importNode.set("schemaLocation",
                "http://schemas.xmlsoap.org/ws/2003/03/addressing/")


            reltMessage = create_xml_subelement(root, 'message')
            reltMessage.set('name', 'RelatesToHeader')
            reltPart = create_xml_subelement(reltMessage, 'part')
            reltPart.set('name', 'RelatesTo')
            reltPart.set('element', 'wsa:RelatesTo')

            replyMessage = create_xml_subelement(root, 'message')
            replyMessage.set('name', 'ReplyToHeader')
            replyPart = create_xml_subelement(replyMessage, 'part')
            replyPart.set('name', 'ReplyTo')
            replyPart.set('element', 'wsa:ReplyTo')

            idHeader = create_xml_subelement(root, 'message')
            idHeader.set('name', 'MessageIDHeader')
            idPart = create_xml_subelement(idHeader, 'part')
            idPart.set('name', 'MessageID')
            idPart.set('element', 'wsa:MessageID')

            # make portTypes
            callbackPortType = create_xml_subelement(root, 'portType')
            callbackPortType.set('name', '%sCallback' % serviceName)

            cbServiceName = '%sCallback' % serviceName
            cbService = create_xml_subelement(root, 'service')
            cbService.set('name', cbServiceName)
            cbWsdlPort = create_xml_subelement(cbService, 'port')
            cbWsdlPort.set('name', cbServiceName)
            cbWsdlPort.set('binding', 'tns:%s' % cbServiceName)
            cbAddr = create_xml_subelement(cbWsdlPort,
                nsmap.get('soap') + 'address')
            cbAddr.set('location', url)


        serviceName = self.__class__.__name__.split('.')[-1]
        portType = create_xml_subelement(root, 'portType')
        portType.set('name', serviceName)
        for method in methods:
            if method.isCallback:
                operation = create_xml_subelement(callbackPortType,
                    'operation')
            else:
                operation = create_xml_subelement(portType, 'operation')

            operation.set('name', method.name)
            params = []
            for name, param in method.inMessage.params:
                params.append(name)

#.........这里部分代码省略.........

    def _add_bindings_for_methods(self, root, serviceName, methods, nsmap):
        """
        A private method for adding bindings to the wsdld
        @param the root element of the wsdl
        @param the name of this service
        @param the methods to be add to the binding node
        """
        hasCallbacks = self._hasCallbacks()

        # make binding
        binding = create_xml_subelement(root, "binding")
        binding.set("name", serviceName)
        binding.set("type", "tns:%s" % serviceName)

        sbinding = create_xml_subelement(binding, nsmap.get("soap") + "binding")
        sbinding.set("style", "document")
        sbinding.set("transport", "http://schemas.xmlsoap.org/soap/http")

        if hasCallbacks:
            callbackBinding = create_xml_subelement(root, "binding")
            callbackBinding.set("name", "%sCallback" % serviceName)
            callbackBinding.set("type", "typens:%sCallback" % serviceName)

            sbinding = create_xml_subelement(callbackBinding, nsmap.get("soap") + "binding")
            sbinding.set("transport", "http://schemas.xmlsoap.org/soap/http")

        for method in methods:
            operation = create_xml_element("operation", nsmap)
            operation.set("name", method.name)

            soapOperation = create_xml_subelement(operation, nsmap.get("soap") + "operation")
            soapOperation.set("soapAction", method.soapAction)

            soapOperation.set("style", "document")

            input = create_xml_subelement(operation, "input")
            input.set("name", method.inMessage.typ)
            soapBody = create_xml_subelement(input, nsmap.get("soap") + "body")
            soapBody.set("use", "literal")

            if method.outMessage.params != None and not method.isAsync and not method.isCallback:
                output = create_xml_subelement(operation, "output")
                output.set("name", method.outMessage.typ)
                soapBody = create_xml_subelement(output, nsmap.get("soap") + "body")
                soapBody.set("use", "literal")

            if method.isCallback:
                relatesTo = create_xml_subelement(input, nsmap.get("soap") + "header")
                relatesTo.set("message", "tns:RelatesToHeader")
                relatesTo.set("part", "RelatesTo")
                relatesTo.set("use", "literal")
                callbackBinding.append(operation)
            else:
                if method.isAsync:
                    rtHeader = create_xml_subelement(input, nsmap.get("soap") + "header")
                    rtHeader.set("message", "tns:ReplyToHeader")
                    rtHeader.set("part", "ReplyTo")
                    rtHeader.set("use", "literal")

                    midHeader = create_xml_subelement(input, nsmap.get("soap") + "header")
                    midHeader.set("message", "tns:MessageIDHeader")
                    midHeader.set("part", "MessageID")
                    midHeader.set("use", "literal")
                binding.append(operation)