mcs/class/System.XML/System.Xml.Schema/XmlSchemaGroup.cs

   1 // Author: Dwivedi, Ajay kumar\r
   2 //            Adwiv@Yahoo.com\r
   3 using System;\r
   4 using System.Xml.Serialization;\r
   5 using System.Xml;\r
   6 \r
   7 namespace System.Xml.Schema\r
   8 {\r
   9         /// <summary>\r
  10         /// refers to the named group\r
  11         /// </summary>\r
  12         public class XmlSchemaGroup : XmlSchemaAnnotated\r
  13         {\r
  14                 private string name;\r
  15                 private XmlSchemaGroupBase particle;\r
  16                 private XmlQualifiedName qualifiedName;\r
  17                 \r
  18                 private static string xmlname = "group";\r
  19 \r
  20                 public XmlSchemaGroup()\r
  21                 {\r
  22                 }\r
  23 \r
  24                 [System.Xml.Serialization.XmlAttribute("name")]\r
  25                 public string Name \r
  26                 {\r
  27                         get{ return  name; } \r
  28                         set{ name = value; }\r
  29                 }\r
  30 \r
  31                 [XmlElement("all",typeof(XmlSchemaAll),Namespace="http://www.w3.org/2001/XMLSchema")]\r
  32                 [XmlElement("choice",typeof(XmlSchemaChoice),Namespace="http://www.w3.org/2001/XMLSchema")]\r
  33                 [XmlElement("sequence",typeof(XmlSchemaSequence),Namespace="http://www.w3.org/2001/XMLSchema")]\r
  34                 public XmlSchemaGroupBase Particle\r
  35                 {\r
  36                         get{ return  particle; }\r
  37                         set{ particle = value; }\r
  38                 }\r
  39 \r
  40                 [XmlIgnore]\r
  41                 internal XmlQualifiedName QualifiedName \r
  42                 {\r
  43                         get{ return qualifiedName;}\r
  44                 }\r
  45 \r
  46                 // 1. name must be present\r
  47                 [MonoTODO]\r
  48                 internal int Compile(ValidationEventHandler h, XmlSchemaInfo info)\r
  49                 {\r
  50                         if(Name == null)\r
  51                                 error(h,"Required attribute name must be present");\r
  52                         else if(!XmlSchemaUtil.CheckNCName(this.name)) \r
  53                                 error(h,"attribute name must be NCName");\r
  54                         else\r
  55                                 qualifiedName = new XmlQualifiedName(Name,info.targetNS);\r
  56                         \r
  57                         if(Particle == null)\r
  58                         {\r
  59                                 error(h,"Particle is required");\r
  60                         }\r
  61                         else if(Particle is XmlSchemaChoice)\r
  62                         {\r
  63                                 errorCount += ((XmlSchemaChoice)Particle).Compile(h,info);\r
  64                         }\r
  65                         else if(Particle is XmlSchemaSequence)\r
  66                         {\r
  67                                 errorCount += ((XmlSchemaSequence)Particle).Compile(h,info);\r
  68                         }\r
  69                         else if(Particle is XmlSchemaAll)\r
  70                         {\r
  71                                 errorCount += ((XmlSchemaAll)Particle).Compile(h,info);\r
  72                         }\r
  73                         else\r
  74                         {\r
  75                                 error(h,"only all,choice or sequence are allowed");\r
  76                         }\r
  77 \r
  78                         if(this.Id != null && !XmlSchemaUtil.CheckID(Id))\r
  79                                 error(h, "id must be a valid ID");\r
  80 \r
  81                         return errorCount;\r
  82                 }\r
  83                 \r
  84                 [MonoTODO]\r
  85                 internal int Validate(ValidationEventHandler h)\r
  86                 {\r
  87                         return errorCount;\r
  88                 }\r
  89 \r
  90                 //From the Errata\r
  91                 //<group \r
  92                 //  id = ID\r
  93                 //  name = NCName\r
  94                 //  {any attributes with non-schema namespace . . .}>\r
  95                 //  Content: (annotation?, (all | choice | sequence)?)\r
  96                 //</group>\r
  97                 internal static XmlSchemaGroup Read(XmlSchemaReader reader, ValidationEventHandler h)\r
  98                 {\r
  99                         XmlSchemaGroup group = new XmlSchemaGroup();\r
 100                         reader.MoveToElement();\r
 101 \r
 102                         if(reader.NamespaceURI != XmlSchema.Namespace || reader.LocalName != xmlname)\r
 103                         {\r
 104                                 error(h,"Should not happen :1: XmlSchemaGroup.Read, name="+reader.Name,null);\r
 105                                 reader.Skip();\r
 106                                 return null;\r
 107                         }\r
 108 \r
 109                         group.LineNumber = reader.LineNumber;\r
 110                         group.LinePosition = reader.LinePosition;\r
 111                         group.SourceUri = reader.BaseURI;\r
 112 \r
 113                         while(reader.MoveToNextAttribute())\r
 114                         {\r
 115                                 if(reader.Name == "id")\r
 116                                 {\r
 117                                         group.Id = reader.Value;\r
 118                                 }\r
 119                                 else if(reader.Name == "name")\r
 120                                 {\r
 121                                         group.name = reader.Value;\r
 122                                 }\r
 123                                 else if(reader.NamespaceURI == "" || reader.NamespaceURI == XmlSchema.Namespace)\r
 124                                 {\r
 125                                         error(h,reader.Name + " is not a valid attribute for group",null);\r
 126                                 }\r
 127                                 else\r
 128                                 {\r
 129                                         //TODO: Add to Unhandled attributes\r
 130                                 }\r
 131                         }\r
 132                         \r
 133                         reader.MoveToElement();\r
 134                         if(reader.IsEmptyElement)\r
 135                                 return group;\r
 136 \r
 137 //                       Content: (annotation?, (all | choice | sequence)?)\r
 138                         int level = 1;\r
 139                         while(reader.ReadNextElement())\r
 140                         {\r
 141                                 if(reader.NodeType == XmlNodeType.EndElement)\r
 142                                 {\r
 143                                         if(reader.LocalName != xmlname)\r
 144                                                 error(h,"Should not happen :2: XmlSchemaGroup.Read, name="+reader.Name,null);\r
 145                                         break;\r
 146                                 }\r
 147                                 if(level <= 1 && reader.LocalName == "annotation")\r
 148                                 {\r
 149                                         level = 2; //Only one annotation\r
 150                                         XmlSchemaAnnotation annotation = XmlSchemaAnnotation.Read(reader,h);\r
 151                                         if(annotation != null)\r
 152                                                 group.Annotation = annotation;\r
 153                                         continue;\r
 154                                 }\r
 155                                 if(level <= 2)\r
 156                                 {\r
 157                                         if(reader.LocalName == "all")\r
 158                                         {\r
 159                                                 level = 3;\r
 160                                                 XmlSchemaAll all = XmlSchemaAll.Read(reader,h);\r
 161                                                 if(all != null)\r
 162                                                         group.Particle = all;\r
 163                                                 continue;\r
 164                                         }\r
 165                                         if(reader.LocalName == "choice")\r
 166                                         {\r
 167                                                 level = 3;\r
 168                                                 XmlSchemaChoice choice = XmlSchemaChoice.Read(reader,h);\r
 169                                                 if(choice != null)\r
 170                                                         group.Particle = choice;\r
 171                                                 continue;\r
 172                                         }\r
 173                                         if(reader.LocalName == "sequence")\r
 174                                         {\r
 175                                                 level = 3;\r
 176                                                 XmlSchemaSequence sequence = XmlSchemaSequence.Read(reader,h);\r
 177                                                 if(sequence != null)\r
 178                                                         group.Particle = sequence;\r
 179                                                 continue;\r
 180                                         }\r
 181                                 }\r
 182                                 reader.RaiseInvalidElementError();\r
 183                         }\r
 184                         return group;\r
 185                 }\r
 186         }\r
 187 }\r