mcs/class/Commons.Xml.Relaxng/Commons.Xml.Nvdl/NvdlValidatingReader.cs

   1 using System;
   2 using System.Collections;
   3 using System.Collections.Specialized;
   4 using System.Threading;
   5 using System.Xml;
   6 using Commons.Xml;
   7
   8 namespace Commons.Xml.Nvdl
   9 {
  10         public class NvdlValidatingReader : XmlDefaultReader
  11         {
  12                 NvdlDispatcher dispatcher;
  13
  14                 public NvdlValidatingReader (XmlReader reader, NvdlRules rules)
  15                         : this (reader, rules, new XmlUrlResolver ())
  16                 {
  17                 }
  18
  19                 public NvdlValidatingReader (XmlReader reader, NvdlRules rules, XmlResolver resolver)
  20                         : this (reader, rules, resolver, Nvdl.DefaultConfig)
  21                 {
  22                 }
  23
  24                 public NvdlValidatingReader (XmlReader reader, NvdlRules rules,
  25                         XmlResolver resolver, NvdlConfig config)
  26                         : base (reader)
  27                 {
  28                         dispatcher = new NvdlDispatcher (new SimpleRules (
  29                                 new NvdlCompileContext (
  30                                 rules, config, resolver)), this);
  31                 }
  32
  33                 internal NvdlValidatingReader (XmlReader reader, SimpleRules rules)
  34                         : base (reader)
  35                 {
  36                         dispatcher = new NvdlDispatcher (rules, this);
  37                 }
  38
  39                 public event NvdlMessageEventHandler ActionStarted;
  40
  41                 internal void OnMessage (ListDictionary messages)
  42                 {
  43                         if (messages == null)
  44                                 return;
  45                         string message = messages [Thread.CurrentThread.CurrentCulture.Name] as string;
  46                         if (message == null)
  47                                 message = messages [String.Empty] as string;
  48                         if (message == null)
  49                                 return;
  50                         if (ActionStarted != null)
  51                                 ActionStarted (this, new NvdlMessageEventArgs (message));
  52                 }
  53
  54                 // validation.
  55
  56                 public override bool Read ()
  57                 {
  58                         if (!Reader.Read ())
  59                                 return false;
  60                         switch (Reader.NodeType) {
  61                         case XmlNodeType.Element:
  62                                 dispatcher.StartElement ();
  63                                 break;
  64                         case XmlNodeType.EndElement:
  65                                 dispatcher.EndElement ();
  66                                 break;
  67                         case XmlNodeType.Text:
  68                         case XmlNodeType.CDATA:
  69                         case XmlNodeType.SignificantWhitespace:
  70                                 dispatcher.Text ();
  71                                 break;
  72                         case XmlNodeType.Whitespace:
  73                                 dispatcher.Whitespace ();
  74                                 break;
  75                         }
  76                         return true;
  77                 }
  78         }
  79 }