class/System.XML/System.Xml.Schema/XmlSchemaSimpleContent.cs

   1 //
   2 // System.Xml.Schema.XmlSchemaSimpleContent.cs
   3 //
   4 // Author:
   5 //      Dwivedi, Ajay kumar  Adwiv@Yahoo.com
   6 //      Atsushi Enomoto  ginga@kit.hi-ho.ne.jp
   7 //
   8
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29 using System;
  30 using System.Xml.Serialization;
  31 using System.Xml;
  32
  33 namespace System.Xml.Schema
  34 {
  35         /// <summary>
  36         /// Summary description for XmlSchemaSimpleContent.
  37         /// </summary>
  38         public class XmlSchemaSimpleContent : XmlSchemaContentModel
  39         {
  40                 private XmlSchemaContent content;
  41                 const string xmlname = "simpleContent";
  42                 public XmlSchemaSimpleContent()
  43                 {
  44                 }
  45
  46                 [XmlElement("restriction",typeof(XmlSchemaSimpleContentRestriction))]
  47                 [XmlElement("extension",typeof(XmlSchemaSimpleContentExtension))]
  48                 public override XmlSchemaContent Content
  49                 {
  50                         get{ return  content; }
  51                         set{ content = value; }
  52                 }
  53
  54                 internal override void SetParent (XmlSchemaObject parent)
  55                 {
  56                         base.SetParent (parent);
  57                         if (Content != null)
  58                                 Content.SetParent (this);
  59                 }
  60
  61                 ///<remarks>
  62                 /// 1. Content must be present and one of restriction or extention
  63                 ///</remarks>
  64                 internal override int Compile(ValidationEventHandler h, XmlSchema schema)
  65                 {
  66                         // If this is already compiled this time, simply skip.
  67                         if (CompilationId == schema.CompilationId)
  68                                 return 0;
  69
  70                         if(Content == null)
  71                         {
  72                                 error(h, "Content must be present in a simpleContent");
  73                         }
  74                         else
  75                         {
  76                                 if(Content is XmlSchemaSimpleContentRestriction)
  77                                 {
  78                                         XmlSchemaSimpleContentRestriction xscr = (XmlSchemaSimpleContentRestriction) Content;
  79                                         errorCount += xscr.Compile(h, schema);
  80                                 }
  81                                 else if(Content is XmlSchemaSimpleContentExtension)
  82                                 {
  83                                         XmlSchemaSimpleContentExtension xsce = (XmlSchemaSimpleContentExtension) Content;
  84                                         errorCount += xsce.Compile(h, schema);
  85                                 }
  86                                 else
  87                                         error(h,"simpleContent can't have any value other than restriction or extention");
  88                         }
  89
  90                         XmlSchemaUtil.CompileID(Id,this, schema.IDCollection,h);
  91                         this.CompilationId = schema.CompilationId;
  92                         return errorCount;
  93                 }
  94
  95                 internal override int Validate(ValidationEventHandler h, XmlSchema schema)
  96                 {
  97                         if (IsValidated (schema.ValidationId))
  98                                 return errorCount;
  99
 100                         errorCount += this.Content.Validate (h, schema);
 101
 102                         ValidationId = schema.ValidationId;
 103                         return errorCount;
 104                 }
 105                 //<simpleContent
 106                 //  id = ID
 107                 //  {any attributes with non-schema namespace . . .}>
 108                 //  Content: (annotation?, (restriction | extension))
 109                 //</simpleContent>
 110                 internal static XmlSchemaSimpleContent Read(XmlSchemaReader reader, ValidationEventHandler h)
 111                 {
 112                         XmlSchemaSimpleContent simple = new XmlSchemaSimpleContent();
 113                         reader.MoveToElement();
 114
 115                         if(reader.NamespaceURI != XmlSchema.Namespace || reader.LocalName != xmlname)
 116                         {
 117                                 error(h,"Should not happen :1: XmlSchemaComplexContent.Read, name="+reader.Name,null);
 118                                 reader.SkipToEnd();
 119                                 return null;
 120                         }
 121
 122                         simple.LineNumber = reader.LineNumber;
 123                         simple.LinePosition = reader.LinePosition;
 124                         simple.SourceUri = reader.BaseURI;
 125
 126                         while(reader.MoveToNextAttribute())
 127                         {
 128                                 if(reader.Name == "id")
 129                                 {
 130                                         simple.Id = reader.Value;
 131                                 }
 132                                 else if((reader.NamespaceURI == "" && reader.Name != "xmlns") || reader.NamespaceURI == XmlSchema.Namespace)
 133                                 {
 134                                         error(h,reader.Name + " is not a valid attribute for simpleContent",null);
 135                                 }
 136                                 else
 137                                 {
 138                                         XmlSchemaUtil.ReadUnhandledAttribute(reader,simple);
 139                                 }
 140                         }
 141
 142                         reader.MoveToElement();
 143                         if(reader.IsEmptyElement)
 144                                 return simple;
 145                         //Content: (annotation?, (restriction | extension))
 146                         int level = 1;
 147                         while(reader.ReadNextElement())
 148                         {
 149                                 if(reader.NodeType == XmlNodeType.EndElement)
 150                                 {
 151                                         if(reader.LocalName != xmlname)
 152                                                 error(h,"Should not happen :2: XmlSchemaSimpleContent.Read, name="+reader.Name,null);
 153                                         break;
 154                                 }
 155                                 if(level <= 1 && reader.LocalName == "annotation")
 156                                 {
 157                                         level = 2; //Only one annotation
 158                                         XmlSchemaAnnotation annotation = XmlSchemaAnnotation.Read(reader,h);
 159                                         if(annotation != null)
 160                                                 simple.Annotation = annotation;
 161                                         continue;
 162                                 }
 163                                 if(level <=2)
 164                                 {
 165                                         if(reader.LocalName == "restriction")
 166                                         {
 167                                                 level = 3;
 168                                                 XmlSchemaSimpleContentRestriction restriction = XmlSchemaSimpleContentRestriction.Read(reader,h);
 169                                                 if(restriction != null)
 170                                                         simple.content = restriction;
 171                                                 continue;
 172                                         }
 173                                         if(reader.LocalName == "extension")
 174                                         {
 175                                                 level = 3;
 176                                                 XmlSchemaSimpleContentExtension extension = XmlSchemaSimpleContentExtension.Read(reader,h);
 177                                                 if(extension != null)
 178                                                         simple.content = extension;
 179                                                 continue;
 180                                         }
 181                                 }
 182                                 reader.RaiseInvalidElementError();
 183                         }
 184                         return simple;
 185                 }
 186
 187         }
 188 }