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

   1 // Author: Dwivedi, Ajay kumar
   2 //            Adwiv@Yahoo.com
   3
   4 //
   5 // Permission is hereby granted, free of charge, to any person obtaining
   6 // a copy of this software and associated documentation files (the
   7 // "Software"), to deal in the Software without restriction, including
   8 // without limitation the rights to use, copy, modify, merge, publish,
   9 // distribute, sublicense, and/or sell copies of the Software, and to
  10 // permit persons to whom the Software is furnished to do so, subject to
  11 // the following conditions:
  12 //
  13 // The above copyright notice and this permission notice shall be
  14 // included in all copies or substantial portions of the Software.
  15 //
  16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  20 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  21 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  22 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23 //
  24 using System;
  25 using System.Xml;
  26
  27 namespace System.Xml.Schema
  28 {
  29         /// <summary>
  30         /// Summary description for XmlSchemaMaxLengthFacet.
  31         /// </summary>
  32         public class XmlSchemaMaxLengthFacet : XmlSchemaNumericFacet
  33         {
  34                 const string xmlname = "maxLength";
  35
  36                 public XmlSchemaMaxLengthFacet()
  37                 {
  38                 }
  39
  40                 internal override Facet ThisFacet {
  41                         get { return Facet.maxLength;}
  42                 }
  43
  44
  45                 //<maxLength
  46                 //  fixed = boolean : false
  47                 //  id = ID
  48                 //  value = nonNegativeInteger
  49                 //  {any attributes with non-schema namespace . . .}>
  50                 //  Content: (annotation?)
  51                 //</maxLength>
  52                 internal static XmlSchemaMaxLengthFacet Read(XmlSchemaReader reader, ValidationEventHandler h)
  53                 {
  54                         XmlSchemaMaxLengthFacet length = new XmlSchemaMaxLengthFacet();
  55                         reader.MoveToElement();
  56
  57                         if(reader.NamespaceURI != XmlSchema.Namespace || reader.LocalName != xmlname)
  58                         {
  59                                 error(h,"Should not happen :1: XmlSchemaMaxLengthFacet.Read, name="+reader.Name,null);
  60                                 reader.Skip();
  61                                 return null;
  62                         }
  63
  64                         length.LineNumber = reader.LineNumber;
  65                         length.LinePosition = reader.LinePosition;
  66                         length.SourceUri = reader.BaseURI;
  67
  68                         while(reader.MoveToNextAttribute())
  69                         {
  70                                 if(reader.Name == "id")
  71                                 {
  72                                         length.Id = reader.Value;
  73                                 }
  74                                 else if(reader.Name == "fixed")
  75                                 {
  76                                         Exception innerex;
  77                                         length.IsFixed = XmlSchemaUtil.ReadBoolAttribute(reader,out innerex);
  78                                         if(innerex != null)
  79                                                 error(h, reader.Value + " is not a valid value for fixed attribute",innerex);
  80                                 }
  81                                 else if(reader.Name == "value")
  82                                 {
  83                                         length.Value = reader.Value;
  84                                 }
  85                                 else if((reader.NamespaceURI == "" && reader.Name != "xmlns") || reader.NamespaceURI == XmlSchema.Namespace)
  86                                 {
  87                                         error(h,reader.Name + " is not a valid attribute for group",null);
  88                                 }
  89                                 else
  90                                 {
  91                                         XmlSchemaUtil.ReadUnhandledAttribute(reader,length);
  92                                 }
  93                         }
  94
  95                         reader.MoveToElement();
  96                         if(reader.IsEmptyElement)
  97                                 return length;
  98
  99                         //  Content: (annotation?)
 100                         int level = 1;
 101                         while(reader.ReadNextElement())
 102                         {
 103                                 if(reader.NodeType == XmlNodeType.EndElement)
 104                                 {
 105                                         if(reader.LocalName != xmlname)
 106                                                 error(h,"Should not happen :2: XmlSchemaMaxLengthFacet.Read, name="+reader.Name,null);
 107                                         break;
 108                                 }
 109                                 if(level <= 1 && reader.LocalName == "annotation")
 110                                 {
 111                                         level = 2;      //Only one annotation
 112                                         XmlSchemaAnnotation annotation = XmlSchemaAnnotation.Read(reader,h);
 113                                         if(annotation != null)
 114                                                 length.Annotation = annotation;
 115                                         continue;
 116                                 }
 117                                 reader.RaiseInvalidElementError();
 118                         }
 119                         return length;
 120                 }
 121
 122         }
 123 }