C# ParseStack类代码示例

 string StackDump(ParseStack parseStack)
 {
     StringBuilder sb = new StringBuilder();
       foreach (string elem in parseStack)
       {
     sb.Insert(0, elem);
     sb.Insert(0, " : ");
       }
       sb.Insert(0, parseStack.ParseType);
       sb.Insert(0, "[");
       sb.Append("]");
       return sb.ToString();
 }

 public XmlRpcRequest DeserializeRequest(XmlDocument xdoc, Type svcType)
 {
     XmlRpcRequest request = new XmlRpcRequest();
       XmlNode callNode = xdoc.SelectSingleNode("./methodCall");
       if (callNode == null)
       {
     throw new XmlRpcInvalidXmlRpcException(
       "Request XML not valid XML-RPC - missing methodCall element.");
       }
       XmlNode methodNode = callNode.SelectSingleNode("./methodName");
       if (methodNode == null)
       {
     throw new XmlRpcInvalidXmlRpcException(
       "Request XML not valid XML-RPC - missing methodName element.");
       }
       request.method = methodNode.FirstChild.Value;
       if (request.method == "")
       {
     throw new XmlRpcInvalidXmlRpcException(
       "Request XML not valid XML-RPC - empty methodName.");
       }
       request.mi = null;
       ParameterInfo[] pis = new ParameterInfo[0];
       if (svcType != null)
       {
     // retrieve info for the method which handles this XML-RPC method
     XmlRpcServiceInfo svcInfo
       = XmlRpcServiceInfo.CreateServiceInfo(svcType);
     request.mi = svcInfo.GetMethodInfo(request.method);
     // if a service type has been specified and we cannot find the requested
     // method then we must throw an exception
     if (request.mi == null)
     {
       string msg = String.Format("unsupported method called: {0}",
                               request.method);
       throw new XmlRpcUnsupportedMethodException(msg);
     }
     // method must be marked with XmlRpcMethod attribute
     Attribute attr = Attribute.GetCustomAttribute(request.mi,
       typeof(XmlRpcMethodAttribute));
     if (attr == null)
     {
       throw new XmlRpcMethodAttributeException(
     "Method must be marked with the XmlRpcMethod attribute.");
     }
     pis = request.mi.GetParameters();
       }
       XmlNode paramsNode = callNode.SelectSingleNode("./params");
       if (paramsNode == null)
       {
     if (svcType != null)
     {
       if (pis.Length == 0)
       {
     request.args = new object[0];
     return request;
       }
       else
       {
     throw new XmlRpcInvalidParametersException(
       "Method takes parameters and params element is missing.");
       }
     }
     else
     {
       request.args = new object[0];
       return request;
     }
       }
       XmlNodeList paramNodes = paramsNode.SelectNodes("./param");
       int paramsPos = GetParamsPos(pis);
       if (paramNodes.Count < paramsPos)
       {
     throw new XmlRpcInvalidParametersException(
       "Method takes parameters and there is incorrect number of param "
     + "elements.");
       }
       ParseStack parseStack = new ParseStack("request");
       // TODO: use global action setting
       MappingAction mappingAction = MappingAction.Error;
       int paramObjCount = (paramsPos == -1 ?paramNodes.Count : paramsPos + 1);
       Object[] paramObjs = new Object[paramObjCount];
       // parse ordinary parameters
       int ordinaryParams = (paramsPos == -1 ?paramNodes.Count :paramsPos);
       for (int i = 0; i < ordinaryParams; i++)
       {
     XmlNode paramNode = paramNodes[i];
     XmlNode valueNode = paramNode.SelectSingleNode("./value");
     if (valueNode == null)
       throw new XmlRpcInvalidXmlRpcException("Missing value element.");
     XmlNode node = valueNode.SelectSingleNode("./*");
     if (node == null)
       node = valueNode.FirstChild;
     if (svcType != null)
     {
       parseStack.Push(String.Format("parameter {0}", i + 1));
       // TODO: why following commented out?
     //          parseStack.Push(String.Format("parameter {0} mapped to type {1}",
     //            i, pis[i].ParameterType.Name));
       paramObjs[i] = ParseValue(node, pis[i].ParameterType, parseStack,
//.........这里部分代码省略.........

   Object ParseValue(
 XmlNode node, 
 Type ValueType, 
 ParseStack parseStack,
 MappingAction mappingAction)
   {
       Type parsedType;
         Type parsedArrayType;
         return ParseValue(node, ValueType, parseStack, mappingAction,
       out parsedType, out parsedArrayType);
   }

   void ReportMissingMembers(
 Type valueType,
 Hashtable names,
 ParseStack parseStack)
   {
       StringBuilder sb = new StringBuilder();
         int errorCount = 0;
         string sep = "";
         foreach (string s in names.Keys)
         {
       MappingAction memberAction = MemberMappingAction(valueType, s,
         MappingAction.Error);
       if (memberAction == MappingAction.Error)
       {
         sb.Append(sep);
         sb.Append(s);
         sep = " ";
         errorCount++;
       }
         }
         if (errorCount > 0)
         {
       string plural = "";
       if (errorCount > 1)
         plural = "s";
       throw new XmlRpcTypeMismatchException(parseStack.ParseType
         + " contains struct value with missing non-optional member"
         + plural + ": " + sb.ToString() + " " + StackDump(parseStack));
         }
   }

   Object ParseBoolean(
 XmlNode node, 
 Type ValueType,
 ParseStack parseStack,
 MappingAction mappingAction)
   {
       if (ValueType != null && ValueType != typeof(Object)
       && ValueType != typeof(System.Boolean)
       #if !FX1_0
       && ValueType != typeof(bool?)
       #endif
       && ValueType != typeof(XmlRpcBoolean))
         {
       throw new XmlRpcTypeMismatchException(parseStack.ParseType
         + " contains boolean value where "
         + XmlRpcServiceInfo.GetXmlRpcTypeString(ValueType)
         + " expected " + StackDump(parseStack));
         }
         bool retVal;
         parseStack.Push("boolean");
         try
         {
       string s = node.FirstChild.Value;
       if (s == "1")
       {
         retVal = true;
       }
       else if (s == "0")
       {
         retVal = false;
       }
       else
       {
         throw new XmlRpcInvalidXmlRpcException(
       "reponse contains invalid boolean value "
       + StackDump(parseStack));
       }
         }
         finally
         {
       parseStack.Pop();
         }
         if (ValueType == typeof(XmlRpcBoolean))
       return new XmlRpcBoolean(retVal);
         else
       return retVal;
   }

//.........这里部分代码省略.........
              }
            // JB Change
            // Sometimes tapatalk calls the same method with both parameters and no parameters
            // This allows us to handle that by changing the no parameter case into an empty parameter array
              else if(pis.Length == 1 && pis[0].ParameterType == typeof(object[]))
              {
              paramsNode = xdoc.CreateNode(XmlNodeType.Element, "params", "");
              //var paramNode = xdoc.CreateNode(XmlNodeType.Element, "param", "");
              //paramsNode.AppendChild(paramNode);

             // var valueNode = xdoc.CreateNode(XmlNodeType.Element, "value", "");
              //paramNode.AppendChild(valueNode);

             // var arrayNode = xdoc.CreateNode(XmlNodeType.Element, "string", "");
              //valueNode.AppendChild(arrayNode);

             // var dataNode = xdoc.CreateNode(XmlNodeType.Element, "data", "");
              //arrayNode.AppendChild(dataNode);
              }
              else
              {

            throw new XmlRpcInvalidParametersException(
              "Method takes parameters and params element is missing.");
              }
            }
            else
            {
              request.args = new object[0];
              return request;
            }
              }
              XmlNode[] paramNodes = SelectNodes(paramsNode, "param");
              int paramsPos = GetParamsPos(pis);
              int minParamCount = paramsPos == -1 ? pis.Length : paramsPos;
              if (svcType != null && paramNodes.Length < minParamCount)
              {
            throw new XmlRpcInvalidParametersException(
              "Request contains too few param elements based on method signature.");
              }
              if (svcType != null && paramsPos == -1 && paramNodes.Length > pis.Length)
              {
            throw new XmlRpcInvalidParametersException(
              "Request contains too many param elements based on method signature.");
              }
              ParseStack parseStack = new ParseStack("request");
              // TODO: use global action setting
              MappingAction mappingAction = MappingAction.Error;
              int paramObjCount = (paramsPos == -1 ? paramNodes.Length : paramsPos + 1);
              Object[] paramObjs = new Object[paramObjCount];
              // parse ordinary parameters
              int ordinaryParams = (paramsPos == -1 ? paramNodes.Length : paramsPos);
              for (int i = 0; i < ordinaryParams; i++)
              {
            XmlNode paramNode = paramNodes[i];
            XmlNode valueNode = SelectSingleNode(paramNode, "value");
            if (valueNode == null)
              throw new XmlRpcInvalidXmlRpcException("Missing value element.");
            XmlNode node = SelectValueNode(valueNode);
            if (svcType != null)
            {
              parseStack.Push(String.Format("parameter {0}", i + 1));
              // TODO: why following commented out?
              //          parseStack.Push(String.Format("parameter {0} mapped to type {1}",
              //            i, pis[i].ParameterType.Name));
              paramObjs[i] = ParseValue(node, pis[i].ParameterType, parseStack,
            mappingAction);
            }
            else
            {
              parseStack.Push(String.Format("parameter {0}", i));
              paramObjs[i] = ParseValue(node, null, parseStack, mappingAction);
            }
            parseStack.Pop();
              }
              // parse params parameters
              if (paramsPos != -1)
              {
            Type paramsType = pis[paramsPos].ParameterType.GetElementType();
            Object[] args = new Object[1];
            args[0] = paramNodes.Length - paramsPos;
            Array varargs = (Array)CreateArrayInstance(pis[paramsPos].ParameterType,
              args);
            for (int i = 0; i < varargs.Length; i++)
            {
              XmlNode paramNode = paramNodes[i + paramsPos];
              XmlNode valueNode = SelectSingleNode(paramNode, "value");
              if (valueNode == null)
            throw new XmlRpcInvalidXmlRpcException("Missing value element.");
              XmlNode node = SelectValueNode(valueNode);
              parseStack.Push(String.Format("parameter {0}", i + 1 + paramsPos));
              varargs.SetValue(ParseValue(node, paramsType, parseStack,
            mappingAction), i);
              parseStack.Pop();
            }
            paramObjs[paramsPos] = varargs;
              }
              request.args = paramObjs;
              return request;
        }

   Object ParseMultiDimArray(XmlNode node, Type ValueType, 
 ParseStack parseStack, MappingAction mappingAction)
   {
       // parse the type name to get element type and array rank
       #if (!COMPACT_FRAMEWORK)
         Type elemType = ValueType.GetElementType();
         int rank = ValueType.GetArrayRank();
       #else
         string[] checkMultiDim = Regex.Split(ValueType.FullName,
       "\\[,[,]*\\]$");
         Type elemType = Type.GetType(checkMultiDim[0]);
         string commas = ValueType.FullName.Substring(checkMultiDim[0].Length+1,
       ValueType.FullName.Length-checkMultiDim[0].Length-2);
         int rank = commas.Length+1;
       #endif
         // elements will be stored sequentially as nested arrays are parsed
         ArrayList elements = new ArrayList();
         // create array to store length of each dimension - initialize to
         // all zeroes so that when parsing we can determine if an array for
         // that dimension has been parsed already
         int[] dimLengths = new int[rank];
         dimLengths.Initialize();
         ParseMultiDimElements(node, rank, 0, elemType, elements, dimLengths,
       parseStack, mappingAction);
         // build arguments to define array dimensions and create the array
         Object[] args = new Object[dimLengths.Length];
         for (int argi=0; argi<dimLengths.Length; argi++)
         {
       args[argi] = dimLengths[argi];
         }
         Array ret = (Array)CreateArrayInstance(ValueType, args);
         // copy elements into new multi-dim array
         //!! make more efficient
         int length = ret.Length;
         for (int e=0; e<length; e++)
         {
       int[] indices = new int[dimLengths.Length];
       int div = 1;
       for (int f=(indices.Length-1); f>=0; f--)
       {
         indices[f] = (e/div)%dimLengths[f];
         div*=dimLengths[f];
       }
       ret.SetValue(elements[e], indices);
         }
         return ret;
   }

   Object ParseArray(
 XmlNode node, 
 Type ValueType,
 ParseStack parseStack,
 MappingAction mappingAction)
   {
       // required type must be an array
         if (ValueType != null
       && !(ValueType.IsArray == true
       || ValueType == typeof(Array)
       || ValueType == typeof(object)))
         {
       throw new XmlRpcTypeMismatchException(parseStack.ParseType
         + " contains array value where "
         + XmlRpcServiceInfo.GetXmlRpcTypeString(ValueType)
         + " expected " + StackDump(parseStack));
         }
         if (ValueType != null)
         {
       XmlRpcType xmlRpcType = XmlRpcServiceInfo.GetXmlRpcType(ValueType);
       if (xmlRpcType == XmlRpcType.tMultiDimArray)
       {
         parseStack.Push("array mapped to type " + ValueType.Name);
         Object ret = ParseMultiDimArray(node, ValueType, parseStack,
       mappingAction);
         return ret;
       }
       parseStack.Push("array mapped to type " + ValueType.Name);
         }
         else
       parseStack.Push("array");
         XmlNode dataNode = node.SelectSingleNode("./data");
         XmlNodeList childNodes = dataNode.SelectNodes("./value");
         int nodeCount = childNodes.Count;
         Object[] elements = new Object[nodeCount];
         // determine type of array elements
         Type elemType = null;
         if (ValueType != null
       && ValueType != typeof(Array)
       && ValueType != typeof(object))
         {
       #if (!COMPACT_FRAMEWORK)
       elemType = ValueType.GetElementType();
       #else
       string[] checkMultiDim = Regex.Split(ValueType.FullName,
         "\\[\\]$");
       // determine assembly of array element type
       Assembly asmbly = ValueType.Assembly;
       string[] asmblyName = asmbly.FullName.Split(',');
       string elemTypeName = checkMultiDim[0] + ", " + asmblyName[0];
       elemType = Type.GetType(elemTypeName);
       #endif
         }
         else
         {
       elemType = typeof(object);
         }
         bool bGotType = false;
         Type useType = null;
         int i = 0;
         foreach (XmlNode vNode in childNodes)
         {
       parseStack.Push(String.Format("element {0}", i));
       XmlNode vvNode = vNode.SelectSingleNode("./*");
       if (vvNode == null)
         vvNode = vNode.FirstChild;
       Type parsedType;
       Type parsedArrayType;
       elements[i++] = ParseValue(vvNode, elemType, parseStack, mappingAction,
                               out parsedType, out parsedArrayType);
       if (bGotType == false)
       {
         useType = parsedArrayType;
         bGotType = true;
       }
       else
       {
         if (useType != parsedArrayType)
       useType = null;
       }
       parseStack.Pop();
         }
         Object[] args = new Object[1]; args[0] = nodeCount;
         Object retObj = null;
         if (ValueType != null
       && ValueType != typeof(Array)
       && ValueType != typeof(object))
         {
       retObj = CreateArrayInstance(ValueType, args);
         }
         else
         {
       if (useType == null)
         retObj = CreateArrayInstance(typeof(object[]), args);
       else
         retObj = CreateArrayInstance(useType, args);
         }
         for (int j=0; j < elements.Length; j++)
         {
       ((Array)retObj).SetValue(elements[j], j);
//.........这里部分代码省略.........

   Object ParseHashtable(
 XmlNode node,
 Type valueType,
 ParseStack parseStack,
 MappingAction mappingAction)
   {
       XmlRpcStruct retObj = new XmlRpcStruct();
         parseStack.Push("struct mapped to XmlRpcStruct");
         try
         {
       XmlNodeList members = node.SelectNodes("./member");
       foreach (XmlNode member in members)
       {
         if (member.Name != "member")
       continue;
         XmlNode nameNode;
         bool dupName;
         XmlNode valueNode;
         bool dupValue;
         SelectTwoNodes(member, "name", out nameNode, out dupName, "value",
       out valueNode, out dupValue);
         if (nameNode == null)
       throw new XmlRpcInvalidXmlRpcException(parseStack.ParseType
         + " contains a member with missing name element"
         + " " + StackDump(parseStack));
         if (dupName)
       throw new XmlRpcInvalidXmlRpcException(parseStack.ParseType
         + " contains member with more than one name element"
         + " " + StackDump(parseStack));
         string rpcName = nameNode.FirstChild.Value;
         if (valueNode == null)
       throw new XmlRpcInvalidXmlRpcException(parseStack.ParseType
         + " contains struct member " + rpcName + " with missing value "
         + " " + StackDump(parseStack));
         if (dupValue)
       throw new XmlRpcInvalidXmlRpcException(parseStack.ParseType
         + " contains member with more than one value element"
         + " " + StackDump(parseStack));
         if (retObj.Contains(rpcName))
         {
       if (!IgnoreDuplicateMembers)
         throw new XmlRpcInvalidXmlRpcException(parseStack.ParseType
           + " contains struct value with duplicate member "
           + nameNode.FirstChild.Value
           + " " + StackDump(parseStack));
       else
         continue;
         }
         object valObj;
         parseStack.Push(String.Format("member {0}", rpcName));
         try
         {
       XmlNode vvNode = valueNode.SelectSingleNode("./*");
       if (vvNode == null)
         vvNode = valueNode.FirstChild;
       valObj = ParseValue(vvNode, null, parseStack,
         mappingAction);
         }
         finally
         {
       parseStack.Pop();
         }
         retObj.Add(rpcName, valObj);
       }
         }
         finally
         {
       parseStack.Pop();
         }
         return retObj;
   }

   Object ParseInt(
 XmlNode node, 
 Type ValueType,
 ParseStack parseStack,
 MappingAction mappingAction)
   {
       if (ValueType != null && ValueType != typeof(Object)
       && ValueType != typeof(System.Int32)
       #if !FX1_0
       && ValueType != typeof(int?)
       #endif
       && ValueType != typeof(XmlRpcInt))
         {
       throw new XmlRpcTypeMismatchException(parseStack.ParseType +
         " contains int value where "
         + XmlRpcServiceInfo.GetXmlRpcTypeString(ValueType)
         + " expected " + StackDump(parseStack));
         }
         int retVal;
         parseStack.Push("integer");
         try
         {
       XmlNode valueNode = node.FirstChild;
       if (valueNode == null)
       {
         throw new XmlRpcInvalidXmlRpcException(parseStack.ParseType
       +" contains invalid int element " + StackDump(parseStack));
       }
       try
       {
         String strValue = valueNode.Value;
         retVal = Int32.Parse(strValue);
       }
       catch(Exception)
       {
         throw new XmlRpcInvalidXmlRpcException(parseStack.ParseType
       + " contains invalid int value " + StackDump(parseStack));
       }
         }
         finally
         {
       parseStack.Pop();
         }
         if (ValueType == typeof(XmlRpcInt))
       return new XmlRpcInt(retVal);
         else
       return retVal;
   }

   XmlRpcFaultException ParseFault(
 XmlNode faultNode,
 ParseStack parseStack,
 MappingAction mappingAction)
   {
       XmlNode valueNode = faultNode.SelectSingleNode("./value");
         XmlNode structNode = valueNode.SelectSingleNode("./struct");
         if (structNode == null)
         {
       throw new XmlRpcInvalidXmlRpcException(
         "struct element missing from fault response.");
         }
         Fault fault;
         try
         {
       fault = (Fault)ParseValue(structNode, typeof(Fault), parseStack,
         mappingAction);
         }
         catch(Exception ex)
         {
       // some servers incorrectly return fault code in a string
       if (AllowStringFaultCode)
         throw;
       else
       {
         FaultStructStringCode faultStrCode;
         try
         {
       faultStrCode = (FaultStructStringCode)ParseValue(structNode,
         typeof(FaultStructStringCode), parseStack, mappingAction);
       fault.faultCode = Convert.ToInt32(faultStrCode.faultCode);
       fault.faultString = faultStrCode.faultString;
         }
         catch (Exception)
         {
       // use exception from when attempting to parse code as integer
       throw ex;
         }
       }
         }
         return new XmlRpcFaultException(fault.faultCode, fault.faultString);
   }

   Object ParseDouble(
 XmlNode node, 
 Type ValueType,
 ParseStack parseStack,
 MappingAction mappingAction)
   {
       if (ValueType != null && ValueType != typeof(Object)
       && ValueType != typeof(System.Double)
       #if !FX1_0
       && ValueType != typeof(double?)
       #endif
       && ValueType != typeof(XmlRpcDouble))
         {
       throw new XmlRpcTypeMismatchException(parseStack.ParseType
         + " contains double value where "
         + XmlRpcServiceInfo.GetXmlRpcTypeString(ValueType)
         + " expected " + StackDump(parseStack));
         }
         Double retVal;
         parseStack.Push("double");
         try
         {
       retVal = Double.Parse(node.FirstChild.Value,
         CultureInfo.InvariantCulture.NumberFormat);
         }
         catch(Exception)
         {
       throw new XmlRpcInvalidXmlRpcException(parseStack.ParseType
         + " contains invalid double value " + StackDump(parseStack));
         }
         finally
         {
       parseStack.Pop();
         }
         if (ValueType == typeof(XmlRpcDouble))
       return new XmlRpcDouble(retVal);
         else
       return retVal;
   }

 Object ParseDateTime(
   XmlNode node,
   Type ValueType,
   ParseStack parseStack,
   MappingAction mappingAction)
 {
     if (ValueType != null && ValueType != typeof(Object)
       && ValueType != typeof(System.DateTime)
     #if !FX1_0
      && ValueType != typeof(DateTime?)
     #endif
      && ValueType != typeof(XmlRpcDateTime))
     {
         throw new XmlRpcTypeMismatchException(parseStack.ParseType
           + " contains dateTime.iso8601 value where "
           + XmlRpcServiceInfo.GetXmlRpcTypeString(ValueType)
           + " expected " + StackDump(parseStack));
     }
     DateTime retVal;
     parseStack.Push("dateTime");
     try
     {
         XmlNode child = node.FirstChild;
         if (child == null)
         {
             if (MapEmptyDateTimeToMinValue)
                 return DateTime.MinValue;
             else
                 throw new XmlRpcInvalidXmlRpcException(parseStack.ParseType
                   + " contains empty dateTime value "
                   + StackDump(parseStack));
         }
         string s = child.Value;
         // Allow various iso8601 formats, e.g.
         //   XML-RPC spec yyyyMMddThh:mm:ss
         //   WordPress yyyyMMddThh:mm:ssZ
         //   TypePad yyyy-MM-ddThh:mm:ssZ
         //   other yyyy-MM-ddThh:mm:ss
         if (!DateTime8601.TryParseDateTime8601(s, out retVal))
         {
             if (MapZerosDateTimeToMinValue && s.StartsWith("0000")
               && (s == "00000000T00:00:00" || s == "0000-00-00T00:00:00Z"
               || s == "00000000T00:00:00Z" || s == "0000-00-00T00:00:00"))
                 retVal = DateTime.MinValue;
             else
                 throw new XmlRpcInvalidXmlRpcException(parseStack.ParseType
                   + " contains invalid dateTime value "
                   + StackDump(parseStack));
         }
     }
     finally
     {
         parseStack.Pop();
     }
     if (ValueType == typeof(XmlRpcDateTime))
         return new XmlRpcDateTime(retVal);
     else
         return retVal;
 }

 public XmlRpcResponse DeserializeResponse(XmlDocument xdoc, Type returnType)
 {
     XmlRpcResponse response = new XmlRpcResponse();
       Object retObj = null;
       XmlNode methodResponseNode = xdoc.SelectSingleNode("./methodResponse");
       if (methodResponseNode == null)
       {
     throw new XmlRpcInvalidXmlRpcException(
       "Response XML not valid XML-RPC - missing methodResponse element.");
       }
       // check for fault response
       XmlNode faultNode = methodResponseNode.SelectSingleNode("./fault");
       if (faultNode != null)
       {
     ParseStack parseStack = new ParseStack("fault response");
     // TODO: use global action setting
     MappingAction mappingAction = MappingAction.Error;
     XmlRpcFaultException faultEx = ParseFault(faultNode, parseStack,
       mappingAction);
     throw faultEx;
       }
       XmlNode paramsNode = methodResponseNode.SelectSingleNode("./params");
       if (paramsNode == null && returnType != null)
       {
     if (returnType == typeof(void))
       return null;
     else
       throw new XmlRpcInvalidXmlRpcException(
     "Response XML not valid XML-RPC - missing params element.");
       }
       XmlNode paramNode = paramsNode.SelectSingleNode("./param");
       if (paramNode == null && returnType != null)
       {
     if (returnType == typeof(void))
       return null;
     else
       throw new XmlRpcInvalidXmlRpcException(
     "Response XML not valid XML-RPC - missing params element.");
       }
       XmlNode valueNode = paramNode.SelectSingleNode("./value");
       if (valueNode == null)
       {
     throw new XmlRpcInvalidXmlRpcException(
       "Response XML not valid XML-RPC - missing value element.");
       }
       if (returnType == typeof(void))
       {
     retObj = null;
       }
       else
       {
     ParseStack parseStack = new ParseStack("response");
     // TODO: use global action setting
     MappingAction mappingAction = MappingAction.Error;
     XmlNode node = valueNode.SelectSingleNode("./*");
     if (node == null)
       node = valueNode.FirstChild;
     retObj = ParseValue(node, returnType, parseStack, mappingAction);
       }
       response.retVal = retObj;
       return response;
 }

   void ParseMultiDimElements(XmlNode node, int Rank, int CurRank, 
 Type elemType, ArrayList elements, int[] dimLengths, 
 ParseStack parseStack, MappingAction mappingAction)
   {
       if (node.Name != "array")
         {
       throw new XmlRpcTypeMismatchException(
         "param element does not contain array element.");
         }
         XmlNode dataNode = node.SelectSingleNode("./data");
         XmlNodeList childNodes = dataNode.SelectNodes("./value");
         int nodeCount = childNodes.Count;
         //!! check that multi dim array is not jagged
         if (dimLengths[CurRank] != 0 && nodeCount != dimLengths[CurRank])
         {
       throw new XmlRpcNonRegularArrayException(
         "Multi-dimensional array must not be jagged.");
         }
         dimLengths[CurRank] = nodeCount;  // in case first array at this rank
         if (CurRank < (Rank-1))
         {
       foreach (XmlNode vNode in childNodes)
       {
         XmlNode arrayNode = vNode.SelectSingleNode("./array");
         ParseMultiDimElements(arrayNode, Rank, CurRank+1, elemType,
       elements, dimLengths, parseStack, mappingAction);
       }
         }
         else
         {
       foreach (XmlNode vNode in childNodes)
       {
         XmlNode vvNode = vNode.SelectSingleNode("./*");
         if (node == null)
       node = vNode.FirstChild;
         elements.Add(ParseValue(vvNode, elemType, parseStack,
       mappingAction));
       }
         }
   }