XmlSerializationReaderInterpreter.cs :  » 2.6.4-mono-.net-core » System.Xml » System » Xml » Serialization » C# / CSharp Open Source

Home
C# / CSharp Open Source
1.2.6.4 mono .net core
2.2.6.4 mono core
3.Aspect Oriented Frameworks
4.Bloggers
5.Build Systems
6.Business Application
7.Charting Reporting Tools
8.Chat Servers
9.Code Coverage Tools
10.Content Management Systems CMS
11.CRM ERP
12.Database
13.Development
14.Email
15.Forum
16.Game
17.GIS
18.GUI
19.IDEs
20.Installers Generators
21.Inversion of Control Dependency Injection
22.Issue Tracking
23.Logging Tools
24.Message
25.Mobile
26.Network Clients
27.Network Servers
28.Office
29.PDF
30.Persistence Frameworks
31.Portals
32.Profilers
33.Project Management
34.RSS RDF
35.Rule Engines
36.Script
37.Search Engines
38.Sound Audio
39.Source Control
40.SQL Clients
41.Template Engines
42.Testing
43.UML
44.Web Frameworks
45.Web Service
46.Web Testing
47.Wiki Engines
48.Windows Presentation Foundation
49.Workflows
50.XML Parsers
C# / C Sharp
C# / C Sharp by API
C# / CSharp Tutorial
C# / CSharp Open Source » 2.6.4 mono .net core » System.Xml 
System.Xml » System » Xml » Serialization » XmlSerializationReaderInterpreter.cs
//
// XmlSerializationReaderInterpreter.cs: 
//
// Author:
//   Lluis Sanchez Gual (lluis@ximian.com)
//
// (C) 2002, 2003 Ximian, Inc.  http://www.ximian.com
//

//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System;
using System.Reflection;
using System.Collections;

namespace System.Xml.Serialization{
  internal class XmlSerializationReaderInterpreter: XmlSerializationReader
  {
    XmlMapping _typeMap;
    SerializationFormat _format;
    static readonly XmlQualifiedName AnyType = new XmlQualifiedName("anyType", System.Xml.Schema.XmlSchema.Namespace);
    static readonly object [] empty_array = new object [0];

    public XmlSerializationReaderInterpreter(XmlMapping typeMap)
    {
      _typeMap = typeMap;
      _format = typeMap.Format;
    }

    protected override void InitCallbacks ()
    {
      ArrayList maps = _typeMap.RelatedMaps;
      if (maps != null)
      {
        foreach (XmlTypeMapping map in maps)  
        {
          if (map.TypeData.SchemaType == SchemaTypes.Class || map.TypeData.SchemaType == SchemaTypes.Enum)
          {
            ReaderCallbackInfo info = new ReaderCallbackInfo (this, map);
            AddReadCallback (map.XmlType, map.Namespace, map.TypeData.Type, new XmlSerializationReadCallback (info.ReadObject));
          }
        }
      }
    }

    protected override void InitIDs ()
    {
    }

    protected XmlTypeMapping GetTypeMap (Type type)
    {
      ArrayList maps = _typeMap.RelatedMaps;
      if (maps != null)
      {
        foreach (XmlTypeMapping map in maps)
          if (map.TypeData.Type == type) return map;
      }
      throw new InvalidOperationException ("Type " + type + " not mapped");
    }

    public object ReadRoot ()
    {
      Reader.MoveToContent();
      if (_typeMap is XmlTypeMapping)
      {
        if (_format == SerializationFormat.Literal)
          return ReadRoot ((XmlTypeMapping)_typeMap);
        else
          return ReadEncodedObject ((XmlTypeMapping)_typeMap);
      }
      else
        return ReadMessage ((XmlMembersMapping)_typeMap);
    }

    object ReadEncodedObject (XmlTypeMapping typeMap)
    {
      object ob = null;
      Reader.MoveToContent();
      if (Reader.NodeType == System.Xml.XmlNodeType.Element) 
      {
        if (Reader.LocalName == typeMap.ElementName && Reader.NamespaceURI == typeMap.Namespace)
          ob = ReadReferencedElement();
        else 
          throw CreateUnknownNodeException();
      }
      else 
        UnknownNode(null);

      ReadReferencedElements();
      return ob;
    }

    protected virtual object ReadMessage (XmlMembersMapping typeMap)
    {
      object[] parameters = new object[typeMap.Count];

      if (typeMap.HasWrapperElement)
      {
        // bug #79988: out parameters need to be initialized if they 
        // are value types
        ArrayList members = ((ClassMap) typeMap.ObjectMap).AllMembers;
        for (int n = 0; n < members.Count; n++) {
          XmlTypeMapMember mem = (XmlTypeMapMember) members [n];
          if (!mem.IsReturnValue && mem.TypeData.IsValueType)
            SetMemberValueFromAttr (mem, parameters, CreateInstance (
              mem.TypeData.Type), true);
        }

        if (_format == SerializationFormat.Encoded)
        {
          while (Reader.NodeType == System.Xml.XmlNodeType.Element)
          {
            string root = Reader.GetAttribute ("root", XmlSerializer.EncodingNamespace);
            if (root == null || System.Xml.XmlConvert.ToBoolean(root)) break;
            ReadReferencedElement ();
            Reader.MoveToContent ();
          }
        }

        while (Reader.NodeType != System.Xml.XmlNodeType.EndElement &&
               // it could be an empty root element
               Reader.ReadState == ReadState.Interactive)
        {
          if (Reader.IsStartElement(typeMap.ElementName, typeMap.Namespace) 
              || _format == SerializationFormat.Encoded)  
          {
            ReadAttributeMembers ((ClassMap)typeMap.ObjectMap, parameters, true);
            if (Reader.IsEmptyElement) {
              Reader.Skip();
              Reader.MoveToContent();
              continue;
            }
            Reader.ReadStartElement();
            ReadMembers ((ClassMap)typeMap.ObjectMap, parameters, true, false);
            ReadEndElement();
            break;
          }
          else 
            UnknownNode(null);

          Reader.MoveToContent();
        }
      }
      else
        ReadMembers ((ClassMap)typeMap.ObjectMap, parameters, true, _format == SerializationFormat.Encoded);

      if (_format == SerializationFormat.Encoded)
        ReadReferencedElements();

      return parameters;
    }

    object ReadRoot (XmlTypeMapping rootMap)
    {
      if (rootMap.TypeData.SchemaType == SchemaTypes.XmlNode)
      {
        return ReadXmlNodeElement (rootMap, true);
      }
      else
      {
        if (Reader.LocalName != rootMap.ElementName || Reader.NamespaceURI != rootMap.Namespace)
          throw CreateUnknownNodeException();
        
        return ReadObject (rootMap, rootMap.IsNullable, true);
      }
    }    


    protected virtual object ReadObject (XmlTypeMapping typeMap, bool isNullable, bool checkType)
    {
      switch (typeMap.TypeData.SchemaType)
      {
        case SchemaTypes.Class: return ReadClassInstance (typeMap, isNullable, checkType);
        case SchemaTypes.Array: return ReadListElement (typeMap, isNullable, null, true);
        case SchemaTypes.XmlNode: return ReadXmlNodeElement (typeMap, isNullable);
        case SchemaTypes.Primitive: return ReadPrimitiveElement (typeMap, isNullable);
        case SchemaTypes.Enum: return ReadEnumElement (typeMap, isNullable);
        case SchemaTypes.XmlSerializable: return ReadXmlSerializableElement (typeMap, isNullable);
        default: throw new Exception ("Unsupported map type");
      }
    }

    protected virtual object ReadClassInstance (XmlTypeMapping typeMap, bool isNullable, bool checkType)
    {
      if (isNullable && ReadNull()) return null;

      if (checkType) 
      {
                System.Xml.XmlQualifiedName t = GetXsiType();
        if (t != null) 
        {
          XmlTypeMapping realMap = typeMap.GetRealElementMap (t.Name, t.Namespace);
          if (realMap == null) {
            if (typeMap.TypeData.Type == typeof(object))
              return ReadTypedPrimitive (t);
            else
              throw CreateUnknownTypeException((System.Xml.XmlQualifiedName)t);
          }
          if (realMap != typeMap)
            return ReadObject (realMap, false, false);
        }
        else if (typeMap.TypeData.Type == typeof(object))
          return ReadTypedPrimitive (AnyType);
            }

      object ob = Activator.CreateInstance (typeMap.TypeData.Type, true);

      Reader.MoveToElement();
      bool isEmpty = Reader.IsEmptyElement;
      ReadClassInstanceMembers (typeMap, ob);

      if (isEmpty) Reader.Skip();
      else ReadEndElement();

      return ob;
    }

    protected virtual void ReadClassInstanceMembers (XmlTypeMapping typeMap, object ob)
    {
      ReadMembers ((ClassMap) typeMap.ObjectMap, ob, false, false);
    }

    void ReadAttributeMembers (ClassMap map, object ob, bool isValueList)
    {
      XmlTypeMapMember anyAttrMember = map.DefaultAnyAttributeMember;
      int anyAttributeIndex = 0;
      object anyAttributeArray = null;

      while (Reader.MoveToNextAttribute())
      {
        XmlTypeMapMemberAttribute member = map.GetAttribute (Reader.LocalName, Reader.NamespaceURI);

        if (member != null) 
        {
          SetMemberValue (member, ob, GetValueFromXmlString (Reader.Value, member.TypeData, member.MappedType), isValueList);
        }
        else if (IsXmlnsAttribute(Reader.Name)) 
        {
          // If the map has NamespaceDeclarations,
          // then store this xmlns to the given member.
          // If the instance doesn't exist, then create.
          if (map.NamespaceDeclarations != null) {
            XmlSerializerNamespaces nss = this.GetMemberValue (map.NamespaceDeclarations, ob, isValueList) as XmlSerializerNamespaces;
            if (nss == null) {
              nss = new XmlSerializerNamespaces ();
              SetMemberValue (map.NamespaceDeclarations, ob, nss, isValueList);
            }
            if (Reader.Prefix == "xmlns")
              nss.Add (Reader.LocalName, Reader.Value);
            else
              nss.Add ("", Reader.Value);
          }
        }  
        else if (anyAttrMember != null) 
        {
          XmlAttribute attr = (XmlAttribute) Document.ReadNode(Reader);
          ParseWsdlArrayType (attr);
          AddListValue (anyAttrMember.TypeData, ref anyAttributeArray, anyAttributeIndex++, attr, true);
        }
        else
          ProcessUnknownAttribute(ob);
      }

      if (anyAttrMember != null)
      {
        anyAttributeArray = ShrinkArray ((Array)anyAttributeArray, anyAttributeIndex, anyAttrMember.TypeData.Type.GetElementType(), true);
        SetMemberValue (anyAttrMember, ob, anyAttributeArray, isValueList);
      }
      Reader.MoveToElement ();
    }

    void ReadMembers (ClassMap map, object ob, bool isValueList, bool readByOrder)
    {
      // Reads attributes
      ReadAttributeMembers (map, ob, isValueList);

      if (!isValueList)
      {
        Reader.MoveToElement();
        if (Reader.IsEmptyElement) { 
          SetListMembersDefaults (map, ob, isValueList);
          return;
        }

        Reader.ReadStartElement();
      }

      // Reads elements

      bool[] readFlag = new bool[(map.ElementMembers != null) ? map.ElementMembers.Count : 0];

      bool hasAnyReturnMember = (isValueList && _format == SerializationFormat.Encoded && map.ReturnMember != null);
      
      Reader.MoveToContent();

      int[] indexes = null;
      object[] flatLists = null;
      object[] flatListsChoices = null;
      Fixup fixup = null;
      int ind = 0;
      int maxInd;

      if (readByOrder) {
        if (map.ElementMembers != null) maxInd = map.ElementMembers.Count;
        else maxInd = 0;
      }
      else
        maxInd = int.MaxValue;

      if (map.FlatLists != null) 
      {
        indexes = new int[map.FlatLists.Count];
        flatLists = new object[map.FlatLists.Count];
        foreach (XmlTypeMapMemberExpandable mem in map.FlatLists) {
          if (IsReadOnly (mem, mem.TypeData, ob, isValueList))
            flatLists [mem.FlatArrayIndex] = mem.GetValue (ob);
          else if (mem.TypeData.Type.IsArray) {
            flatLists [mem.FlatArrayIndex] = InitializeList (mem.TypeData);
          }
          else {
            object list = mem.GetValue (ob);
            if (list == null) {
              list = InitializeList (mem.TypeData);
              SetMemberValue (mem, ob, list, isValueList);
            }
            flatLists [mem.FlatArrayIndex] = list;
          }
            
          if (mem.ChoiceMember != null) {
            if (flatListsChoices == null)
              flatListsChoices = new object [map.FlatLists.Count];
            flatListsChoices [mem.FlatArrayIndex] = InitializeList (mem.ChoiceTypeData);
          }
        }
      }
      
      if (_format == SerializationFormat.Encoded && map.ElementMembers != null)
      {
        FixupCallbackInfo info = new FixupCallbackInfo (this, map, isValueList);
        fixup = new Fixup(ob, new XmlSerializationFixupCallback(info.FixupMembers), map.ElementMembers.Count);
        AddFixup (fixup);
      }

      while (Reader.NodeType != System.Xml.XmlNodeType.EndElement && (ind < maxInd)) 
      {
        if (Reader.NodeType == System.Xml.XmlNodeType.Element) 
        {
          XmlTypeMapElementInfo info;
          
          if (readByOrder) {
            info = map.GetElement (ind++);
          }
          else if (hasAnyReturnMember) {
            info = (XmlTypeMapElementInfo) ((XmlTypeMapMemberElement)map.ReturnMember).ElementInfo[0];
            hasAnyReturnMember = false;
          }
          else
            info = map.GetElement (Reader.LocalName, Reader.NamespaceURI);
            
          if (info != null && !readFlag[info.Member.Index] )
          {
            if (info.Member.GetType() == typeof (XmlTypeMapMemberList))
            {
              if (_format == SerializationFormat.Encoded && info.MultiReferenceType)
              {
                object list = ReadReferencingElement (out fixup.Ids[info.Member.Index]);
                if (fixup.Ids[info.Member.Index] == null)  // Already read
                {
                  if (IsReadOnly (info.Member, info.TypeData, ob, isValueList)) throw CreateReadOnlyCollectionException (info.TypeData.FullTypeName);
                  else SetMemberValue (info.Member, ob, list, isValueList);
                }
                else if (!info.MappedType.TypeData.Type.IsArray)
                {
                  if (IsReadOnly (info.Member, info.TypeData, ob, isValueList)) 
                    list = GetMemberValue (info.Member, ob, isValueList);
                  else { 
                    list = CreateList (info.MappedType.TypeData.Type);
                    SetMemberValue (info.Member, ob, list, isValueList);
                  }
                  AddFixup (new CollectionFixup (list, new XmlSerializationCollectionFixupCallback (FillList), fixup.Ids[info.Member.Index]));
                  fixup.Ids[info.Member.Index] = null;  // The member already has the value, no further fix needed.
                }
              }
              else
              {
                if (IsReadOnly (info.Member, info.TypeData, ob, isValueList)) {
                  ReadListElement (info.MappedType, info.IsNullable, GetMemberValue (info.Member, ob, isValueList), false);
                } else if (info.MappedType.TypeData.Type.IsArray) {
                  object list = ReadListElement (info.MappedType, info.IsNullable, null, true);
                  if (list != null || info.IsNullable)
                    SetMemberValue (info.Member, ob, list, isValueList);
                } else {
                  // If the member already has a list, reuse that list. No need to create a new one. 
                  object list = GetMemberValue (info.Member, ob, isValueList);
                  if (list == null) {
                    list = CreateList (info.MappedType.TypeData.Type);
                    SetMemberValue (info.Member, ob, list, isValueList);
                  }
                  ReadListElement (info.MappedType, info.IsNullable, list, true);
                }
              }
              readFlag[info.Member.Index] = true;
            }
            else if (info.Member.GetType() == typeof (XmlTypeMapMemberFlatList))
            {
              XmlTypeMapMemberFlatList mem = (XmlTypeMapMemberFlatList)info.Member;
              AddListValue (mem.TypeData, ref flatLists[mem.FlatArrayIndex], indexes[mem.FlatArrayIndex]++, ReadObjectElement (info), !IsReadOnly (info.Member, info.TypeData, ob, isValueList));
              if (mem.ChoiceMember != null) {
                AddListValue (mem.ChoiceTypeData, ref flatListsChoices [mem.FlatArrayIndex], indexes[mem.FlatArrayIndex]-1, info.ChoiceValue, true);
              }
            }
            else if (info.Member.GetType() == typeof (XmlTypeMapMemberAnyElement))
            {
              XmlTypeMapMemberAnyElement mem = (XmlTypeMapMemberAnyElement)info.Member;
              if (mem.TypeData.IsListType) AddListValue (mem.TypeData, ref flatLists[mem.FlatArrayIndex], indexes[mem.FlatArrayIndex]++, ReadXmlNode (mem.TypeData.ListItemTypeData, false), true);
              else SetMemberValue (mem, ob, ReadXmlNode (mem.TypeData, false), isValueList);
            }
            else if (info.Member.GetType() == typeof(XmlTypeMapMemberElement))
            {
              object val;
              readFlag[info.Member.Index] = true;
              if (_format == SerializationFormat.Encoded)
              {
                if (info.Member.TypeData.SchemaType != SchemaTypes.Primitive)
                  val = ReadReferencingElement (out fixup.Ids[info.Member.Index]);
                else
                  val = ReadReferencingElement (info.Member.TypeData.XmlType, System.Xml.Schema.XmlSchema.Namespace, out fixup.Ids[info.Member.Index]);
                  
                if (info.MultiReferenceType) {
                  if (fixup.Ids[info.Member.Index] == null)  // already read
                    SetMemberValue (info.Member, ob, val, isValueList);
                }
                else if (val != null)
                  SetMemberValue (info.Member, ob, val, isValueList);
              }
              else {
                SetMemberValue (info.Member, ob, ReadObjectElement (info), isValueList);
                if (info.ChoiceValue != null) {
                  XmlTypeMapMemberElement imem = (XmlTypeMapMemberElement) info.Member;
                  imem.SetChoice (ob, info.ChoiceValue);
                }
              }
            }
            else
              throw new InvalidOperationException ("Unknown member type");
          }
          else if (map.DefaultAnyElementMember != null)
          {
            XmlTypeMapMemberAnyElement mem = map.DefaultAnyElementMember;
            if (mem.TypeData.IsListType) AddListValue (mem.TypeData, ref flatLists[mem.FlatArrayIndex], indexes[mem.FlatArrayIndex]++, ReadXmlNode (mem.TypeData.ListItemTypeData, false), true);
            else SetMemberValue (mem, ob, ReadXmlNode (mem.TypeData, false), isValueList);
          }
          else 
            ProcessUnknownElement(ob);
        }
        else if ((Reader.NodeType == System.Xml.XmlNodeType.Text || Reader.NodeType == System.Xml.XmlNodeType.CDATA) && map.XmlTextCollector != null)
        {
          if (map.XmlTextCollector is XmlTypeMapMemberExpandable)
          {
            XmlTypeMapMemberExpandable mem = (XmlTypeMapMemberExpandable)map.XmlTextCollector;
            XmlTypeMapMemberFlatList flatl = mem as XmlTypeMapMemberFlatList;
            TypeData itype = (flatl == null) ? mem.TypeData.ListItemTypeData : flatl.ListMap.FindTextElement().TypeData;

            object val = (itype.Type == typeof (string)) ? (object) Reader.ReadString() : (object) ReadXmlNode (itype, false);
            AddListValue (mem.TypeData, ref flatLists[mem.FlatArrayIndex], indexes[mem.FlatArrayIndex]++, val, true);
          }
          else
          {
            XmlTypeMapMemberElement mem = (XmlTypeMapMemberElement) map.XmlTextCollector;
            XmlTypeMapElementInfo info = (XmlTypeMapElementInfo) mem.ElementInfo [0];
            if (info.TypeData.Type == typeof (string))
              SetMemberValue (mem, ob, ReadString ((string) GetMemberValue (mem, ob, isValueList)), isValueList);
            else
              SetMemberValue (mem, ob, GetValueFromXmlString (Reader.ReadString(), info.TypeData, info.MappedType), isValueList);
          }
        }
        else 
          UnknownNode(ob);

        Reader.MoveToContent();
      }

      if (flatLists != null)
      {
        foreach (XmlTypeMapMemberExpandable mem in map.FlatLists)
        {
          Object list = flatLists[mem.FlatArrayIndex];
          if (mem.TypeData.Type.IsArray)
            list = ShrinkArray ((Array)list, indexes[mem.FlatArrayIndex], mem.TypeData.Type.GetElementType(), true);
          if (!IsReadOnly (mem, mem.TypeData, ob, isValueList) && mem.TypeData.Type.IsArray)
            SetMemberValue (mem, ob, list, isValueList);
        }
      }

      if (flatListsChoices != null)
      {
        foreach (XmlTypeMapMemberExpandable mem in map.FlatLists)
        {
          Object list = flatListsChoices[mem.FlatArrayIndex];
          if (list == null) continue;
          list = ShrinkArray ((Array)list, indexes[mem.FlatArrayIndex], mem.ChoiceTypeData.Type.GetElementType(), true);
          XmlTypeMapMember.SetValue (ob, mem.ChoiceMember, list);
        }
      }
      SetListMembersDefaults (map, ob, isValueList);
    }
    
    void SetListMembersDefaults (ClassMap map, object ob, bool isValueList)
    {
      if (map.ListMembers != null)
      {
        ArrayList members = map.ListMembers;
        for (int n=0; n<members.Count; n++) {
          XmlTypeMapMember mem = (XmlTypeMapMember) members[n];
          if (IsReadOnly (mem, mem.TypeData, ob, isValueList))
            continue;
          if (GetMemberValue (mem, ob, isValueList) == null)
            SetMemberValue (mem, ob, InitializeList (mem.TypeData), isValueList);
        }
      }
    }

    internal void FixupMembers (ClassMap map, object obfixup, bool isValueList)
    {
      Fixup fixup = (Fixup)obfixup;
      ICollection members = map.ElementMembers;
      string[] ids = fixup.Ids;
      foreach (XmlTypeMapMember member in members)
      {
        if (ids[member.Index] != null)
          SetMemberValue (member, fixup.Source, GetTarget(ids[member.Index]), isValueList);
      }
    }
    
    protected virtual void ProcessUnknownAttribute (object target)
    {
      UnknownNode (target);
    }
    
    protected virtual void ProcessUnknownElement (object target)
    {
      UnknownNode (target);
    }

    bool IsReadOnly (XmlTypeMapMember member, TypeData memType, object ob, bool isValueList)
    {
      if (isValueList) return !memType.HasPublicConstructor;
      else return member.IsReadOnly (ob.GetType()) || !memType.HasPublicConstructor;
    }

    void SetMemberValue (XmlTypeMapMember member, object ob, object value, bool isValueList)
    {
      if (isValueList) ((object[])ob)[member.GlobalIndex] = value;
      else {
        member.SetValue (ob, value);
        if (member.IsOptionalValueType)
          member.SetValueSpecified (ob, true); 
      }
    }

    void SetMemberValueFromAttr (XmlTypeMapMember member, object ob, object value, bool isValueList)
    {
      // Enumeration values specified in custom attributes are stored as integer
      // values if the custom attribute property is of type object. So, it is
      // necessary to convert to the enum type before asigning the value to the field.
      
      if (member.TypeData.Type.IsEnum)
        value = Enum.ToObject (member.TypeData.Type, value);
      SetMemberValue (member, ob, value, isValueList);
    }

    object GetMemberValue (XmlTypeMapMember member, object ob, bool isValueList)
    {
      if (isValueList) return ((object[])ob)[member.GlobalIndex];
      else return member.GetValue (ob);
    }

    object ReadObjectElement (XmlTypeMapElementInfo elem)
    {
      switch (elem.TypeData.SchemaType)
      {
        case SchemaTypes.XmlNode:
          return ReadXmlNode (elem.TypeData, true);

        case SchemaTypes.Primitive:
        case SchemaTypes.Enum:
          return ReadPrimitiveValue (elem);

        case SchemaTypes.Array:
          return ReadListElement (elem.MappedType, elem.IsNullable, null, true);

        case SchemaTypes.Class:
          return ReadObject (elem.MappedType, elem.IsNullable, true);

        case SchemaTypes.XmlSerializable:
          object ob = Activator.CreateInstance (elem.TypeData.Type, true);
          return ReadSerializable ((IXmlSerializable)ob);

        default:
          throw new NotSupportedException ("Invalid value type");
      }
    }

    object ReadPrimitiveValue (XmlTypeMapElementInfo elem)
    {
      if (elem.TypeData.Type == typeof (XmlQualifiedName)) {
        if (elem.IsNullable) return ReadNullableQualifiedName ();
        else return ReadElementQualifiedName ();
      }
      else if (elem.IsNullable)
        return GetValueFromXmlString (ReadNullableString (), elem.TypeData, elem.MappedType);
      else
        return GetValueFromXmlString (Reader.ReadElementString (), elem.TypeData, elem.MappedType);
    }
    
    object GetValueFromXmlString (string value, TypeData typeData, XmlTypeMapping typeMap)
    {
      if (typeData.SchemaType == SchemaTypes.Array)
        return ReadListString (typeMap, value);
      else if (typeData.SchemaType == SchemaTypes.Enum)
        return GetEnumValue (typeMap, value);
      else if (typeData.Type == typeof (XmlQualifiedName))
        return ToXmlQualifiedName (value);
      else 
        return XmlCustomFormatter.FromXmlString (typeData, value);
    }

    object ReadListElement (XmlTypeMapping typeMap, bool isNullable, object list, bool canCreateInstance)
    {
      Type listType = typeMap.TypeData.Type;
      ListMap listMap = (ListMap)typeMap.ObjectMap;

      if (listType.IsArray && ReadNull()) return null;

      if (list == null) {
        if (canCreateInstance && typeMap.TypeData.HasPublicConstructor) list = CreateList (listType);
        else throw CreateReadOnlyCollectionException (typeMap.TypeFullName);
      }

      if (Reader.IsEmptyElement) {
        Reader.Skip();
        if (listType.IsArray)
          list = ShrinkArray ((Array)list, 0, listType.GetElementType(), false);
        return list;
      }

      int index = 0;
      Reader.ReadStartElement();
      Reader.MoveToContent();

      while (Reader.NodeType != System.Xml.XmlNodeType.EndElement) 
      {
        if (Reader.NodeType == System.Xml.XmlNodeType.Element) 
        {
          XmlTypeMapElementInfo elemInfo = listMap.FindElement (Reader.LocalName, Reader.NamespaceURI);
          if (elemInfo != null)
            AddListValue (typeMap.TypeData, ref list, index++, ReadObjectElement (elemInfo), false);
          else
            UnknownNode(null);
        }
        else 
          UnknownNode(null);

        Reader.MoveToContent();
      }
      ReadEndElement();

      if (listType.IsArray)
        list = ShrinkArray ((Array)list, index, listType.GetElementType(), false);

      return list;
    }

    object ReadListString (XmlTypeMapping typeMap, string values)
    {
      Type listType = typeMap.TypeData.Type;
      ListMap listMap = (ListMap)typeMap.ObjectMap;
      values = values.Trim ();

      if (values == string.Empty)
      {
        return Array.CreateInstance (listType.GetElementType(), 0);
      }

      string[] valueArray = values.Split (' ');
      Array list = Array.CreateInstance (listType.GetElementType(), valueArray.Length);

      XmlTypeMapElementInfo info = (XmlTypeMapElementInfo)listMap.ItemInfo[0];

      for (int index = 0; index < valueArray.Length; index++)
        list.SetValue (GetValueFromXmlString (valueArray[index], info.TypeData, info.MappedType), index);

      return list;
    }

    void AddListValue (TypeData listType, ref object list, int index, object value, bool canCreateInstance)
    {
      Type type = listType.Type;
      if (type.IsArray)
      {
        list = EnsureArrayIndex ((Array)list, index, type.GetElementType());
        ((Array)list).SetValue (value, index);
      }
      else  // Must be IEnumerable
      {
        if (list == null) {
          if (canCreateInstance) list = Activator.CreateInstance (type, true);
          else throw CreateReadOnlyCollectionException (type.FullName);
        }

        MethodInfo mi = type.GetMethod ("Add", new Type[] {listType.ListItemType} );
        mi.Invoke (list, new object[] { value });
      }
    }

    object CreateInstance (Type type)
    {
      return Activator.CreateInstance (type, empty_array);
    }

    object CreateList (Type listType)
    {
      if (listType.IsArray)
        return EnsureArrayIndex (null, 0, listType.GetElementType());
      else
        return Activator.CreateInstance (listType, true);
    }
    
    object InitializeList (TypeData listType)
    {
      if (listType.Type.IsArray)
        return null;
      else
        return Activator.CreateInstance (listType.Type, true);
    }

    void FillList (object list, object items)
    {
      CopyEnumerableList (items, list);
    }

    void CopyEnumerableList (object source, object dest)
    {
      if (dest == null) throw CreateReadOnlyCollectionException (source.GetType().FullName);

      object[] param = new object[1];
      MethodInfo mi = dest.GetType().GetMethod ("Add");
      foreach (object ob in (IEnumerable)source)
      {
        param[0] = ob;
        mi.Invoke (dest, param);
      }
    }

    object ReadXmlNodeElement (XmlTypeMapping typeMap, bool isNullable)
    {
      return ReadXmlNode (typeMap.TypeData, false);
    }
    
    object ReadXmlNode (TypeData type, bool wrapped)
    {
      if (type.Type == typeof (XmlDocument))
        return ReadXmlDocument (wrapped);
      else
        return ReadXmlNode (wrapped);
    }

    object ReadPrimitiveElement (XmlTypeMapping typeMap, bool isNullable)
    {
      XmlQualifiedName t = GetXsiType();
      if (t == null) t = new XmlQualifiedName (typeMap.XmlType, typeMap.Namespace);
      return ReadTypedPrimitive (t);
    }

    object ReadEnumElement (XmlTypeMapping typeMap, bool isNullable)
    {
      Reader.ReadStartElement ();
      object o = GetEnumValue (typeMap, Reader.ReadString());
      ReadEndElement ();
      return o;
    }

    object GetEnumValue (XmlTypeMapping typeMap, string val)
    {
      if (val == null)
        return null;
      EnumMap map = (EnumMap) typeMap.ObjectMap;
      string ev = map.GetEnumName (typeMap.TypeFullName, val);
      if (ev == null) throw CreateUnknownConstantException (val, typeMap.TypeData.Type);
      return Enum.Parse (typeMap.TypeData.Type, ev);
    }

    object ReadXmlSerializableElement (XmlTypeMapping typeMap, bool isNullable)
    {
      Reader.MoveToContent ();
      if (Reader.NodeType == XmlNodeType.Element)
      {
        if (Reader.LocalName == typeMap.ElementName && Reader.NamespaceURI == typeMap.Namespace)
        {
          object ob = Activator.CreateInstance (typeMap.TypeData.Type, true);
          return ReadSerializable ((IXmlSerializable)ob);
        }
        else
          throw CreateUnknownNodeException ();
      }
      else
      {
        UnknownNode (null);
        return null;
      }
    }

    class FixupCallbackInfo
    {
      XmlSerializationReaderInterpreter _sri;
      ClassMap _map;
      bool _isValueList;

      public FixupCallbackInfo (XmlSerializationReaderInterpreter sri, ClassMap map, bool isValueList)
      {
        _sri = sri;
        _map = map;
        _isValueList = isValueList;
      }

      public void FixupMembers (object fixup)
      {
        _sri.FixupMembers (_map, fixup, _isValueList);
      }
    }

    class ReaderCallbackInfo
    {
      XmlSerializationReaderInterpreter _sri;
      XmlTypeMapping _typeMap;

      public ReaderCallbackInfo (XmlSerializationReaderInterpreter sri, XmlTypeMapping typeMap)
      {
        _sri = sri;
        _typeMap = typeMap;
      }

      internal object ReadObject ()
      {
        return _sri.ReadObject (_typeMap, true, true);
      }
    }
  }
}
www.java2v.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.