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                 // 2. MinOccurs & MaxOccurs of the Particle must be absent\r
  48                 [MonoTODO]\r
  49                 internal int Compile(ValidationEventHandler h, XmlSchemaInfo info)\r
  50                 {\r
  51                         if(Name == null)\r
  52                                 error(h,"Required attribute name must be present");\r
  53                         else if(!XmlSchemaUtil.CheckNCName(this.name)) \r
  54                                 error(h,"attribute name must be NCName");\r
  55                         else\r
  56                                 qualifiedName = new XmlQualifiedName(Name,info.TargetNamespace);\r
  57 \r
  58                         if(Particle == null)\r
  59                         {\r
  60                                 error(h,"Particle is required");\r
  61                         }\r
  62                         else \r
  63                         {\r
  64                                 if(Particle.MaxOccursString != null)\r
  65                                         Particle.error(h,"MaxOccurs must not be present when the Particle is a child of Group");\r
  66                                 if(Particle.MinOccursString != null)\r
  67                                         Particle.error(h,"MinOccurs must not be present when the Particle is a child of Group");\r
  68                         \r
  69                                 if(Particle is XmlSchemaChoice)\r
  70                                 {\r
  71                                         errorCount += ((XmlSchemaChoice)Particle).Compile(h,info);\r
  72                                 }\r
  73                                 else if(Particle is XmlSchemaSequence)\r
  74                                 {\r
  75                                         errorCount += ((XmlSchemaSequence)Particle).Compile(h,info);\r
  76                                 }\r
  77                                 else if(Particle is XmlSchemaAll)\r
  78                                 {\r
  79                                         errorCount += ((XmlSchemaAll)Particle).Compile(h,info);\r
  80                                 }\r
  81                                 else\r
  82                                 {\r
  83                                         error(h,"only all,choice or sequence are allowed");\r
  84                                 }\r
  85                         }\r
  86                         \r
  87                         XmlSchemaUtil.CompileID(Id,this,info.IDCollection,h);\r
  88 \r
  89                         return errorCount;\r
  90                 }\r
  91                 \r
  92                 [MonoTODO]\r
  93                 internal int Validate(ValidationEventHandler h)\r
  94                 {\r
  95                         return errorCount;\r
  96                 }\r
  97 \r
  98                 //From the Errata\r
  99                 //<group \r
 100                 //  id = ID\r
 101                 //  name = NCName\r
 102                 //  {any attributes with non-schema namespace . . .}>\r
 103                 //  Content: (annotation?, (all | choice | sequence)?)\r
 104                 //</group>\r
 105                 internal static XmlSchemaGroup Read(XmlSchemaReader reader, ValidationEventHandler h)\r
 106                 {\r
 107                         XmlSchemaGroup group = new XmlSchemaGroup();\r
 108                         reader.MoveToElement();\r
 109 \r
 110                         if(reader.NamespaceURI != XmlSchema.Namespace || reader.LocalName != xmlname)\r
 111                         {\r
 112                                 error(h,"Should not happen :1: XmlSchemaGroup.Read, name="+reader.Name,null);\r
 113                                 reader.Skip();\r
 114                                 return null;\r
 115                         }\r
 116 \r
 117                         group.LineNumber = reader.LineNumber;\r
 118                         group.LinePosition = reader.LinePosition;\r
 119                         group.SourceUri = reader.BaseURI;\r
 120 \r
 121                         while(reader.MoveToNextAttribute())\r
 122                         {\r
 123                                 if(reader.Name == "id")\r
 124                                 {\r
 125                                         group.Id = reader.Value;\r
 126                                 }\r
 127                                 else if(reader.Name == "name")\r
 128                                 {\r
 129                                         group.name = reader.Value;\r
 130                                 }\r
 131                                 else if((reader.NamespaceURI == "" && reader.Name != "xmlns") || reader.NamespaceURI == XmlSchema.Namespace)\r
 132                                 {\r
 133                                         error(h,reader.Name + " is not a valid attribute for group",null);\r
 134                                 }\r
 135                                 else\r
 136                                 {\r
 137                                         XmlSchemaUtil.ReadUnhandledAttribute(reader,group);\r
 138                                 }\r
 139                         }\r
 140                         \r
 141                         reader.MoveToElement();\r
 142                         if(reader.IsEmptyElement)\r
 143                                 return group;\r
 144 \r
 145 //                       Content: (annotation?, (all | choice | sequence)?)\r
 146                         int level = 1;\r
 147                         while(reader.ReadNextElement())\r
 148                         {\r
 149                                 if(reader.NodeType == XmlNodeType.EndElement)\r
 150                                 {\r
 151                                         if(reader.LocalName != xmlname)\r
 152                                                 error(h,"Should not happen :2: XmlSchemaGroup.Read, name="+reader.Name,null);\r
 153                                         break;\r
 154                                 }\r
 155                                 if(level <= 1 && reader.LocalName == "annotation")\r
 156                                 {\r
 157                                         level = 2; //Only one annotation\r
 158                                         XmlSchemaAnnotation annotation = XmlSchemaAnnotation.Read(reader,h);\r
 159                                         if(annotation != null)\r
 160                                                 group.Annotation = annotation;\r
 161                                         continue;\r
 162                                 }\r
 163                                 if(level <= 2)\r
 164                                 {\r
 165                                         if(reader.LocalName == "all")\r
 166                                         {\r
 167                                                 level = 3;\r
 168                                                 XmlSchemaAll all = XmlSchemaAll.Read(reader,h);\r
 169                                                 if(all != null)\r
 170                                                         group.Particle = all;\r
 171                                                 continue;\r
 172                                         }\r
 173                                         if(reader.LocalName == "choice")\r
 174                                         {\r
 175                                                 level = 3;\r
 176                                                 XmlSchemaChoice choice = XmlSchemaChoice.Read(reader,h);\r
 177                                                 if(choice != null)\r
 178                                                         group.Particle = choice;\r
 179                                                 continue;\r
 180                                         }\r
 181                                         if(reader.LocalName == "sequence")\r
 182                                         {\r
 183                                                 level = 3;\r
 184                                                 XmlSchemaSequence sequence = XmlSchemaSequence.Read(reader,h);\r
 185                                                 if(sequence != null)\r
 186                                                         group.Particle = sequence;\r
 187                                                 continue;\r
 188                                         }\r
 189                                 }\r
 190                                 reader.RaiseInvalidElementError();\r
 191                         }\r
 192                         return group;\r
 193                 }\r
 194         }\r
 195 }\r