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

   1 using System;
   2 using System.Collections;
   3 using System.Collections.Specialized;
   4 using System.IO;
   5 using System.Xml;
   6 using Commons.Xml.Relaxng;
   7 using Commons.Xml.Relaxng.Rnc;
   8
   9 namespace Commons.Xml.Nvdl
  10 {
  11         public class NvdlRelaxngValidatorProvider : NvdlValidationProvider
  12         {
  13                 public const string RncMimeType = "application/vnd.oasis-open.relax-ng.rnc";
  14
  15                 public override NvdlValidatorGenerator CreateGenerator (
  16                         NvdlValidate validate, string schemaType, NvdlConfig config)
  17                 {
  18                         if (schemaType == RncMimeType)
  19                                 return CreateRncGenerator (validate, config);
  20                         return base.CreateGenerator (validate, schemaType, config);
  21                 }
  22
  23                 private NvdlValidatorGenerator CreateRncGenerator (NvdlValidate validate, NvdlConfig config)
  24                 {
  25                         XmlResolver resolver = config.XmlResolverInternal;
  26                         string schemaUri = GetSchemaUri (validate);
  27                         if (schemaUri == null)
  28                                 return null;
  29                         Uri baseUri = resolver.ResolveUri (null, validate.SourceUri);
  30                         RelaxngPattern p = RncParser.ParseRnc (
  31                                 new StreamReader ((Stream) resolver.GetEntity (
  32                                         resolver.ResolveUri (baseUri, schemaUri),
  33                                         null,
  34                                         typeof (Stream))));
  35                         return new NvdlRelaxngValidatorGenerator (p, config);
  36                 }
  37
  38                 public override NvdlValidatorGenerator CreateGenerator (
  39                         XmlReader reader, NvdlConfig config)
  40                 {
  41                         if (reader.NamespaceURI != RelaxngGrammar.NamespaceURI)
  42                                 return null;
  43
  44                         return new NvdlRelaxngValidatorGenerator (RelaxngPattern.Read (reader), config);
  45                 }
  46         }
  47
  48         internal class NvdlRelaxngValidatorGenerator : NvdlValidatorGenerator
  49         {
  50                 RelaxngPattern pattern;
  51
  52                 public NvdlRelaxngValidatorGenerator (RelaxngPattern p,
  53                         NvdlConfig config)
  54                 {
  55                         // FIXME: use XmlResolver
  56                         pattern = p;
  57                 }
  58
  59                 public override XmlReader CreateValidator (XmlReader reader,
  60                         XmlResolver resolver)
  61                 {
  62                         // XmlResolver is never used.
  63                         RelaxngValidatingReader rvr =
  64                                 new RelaxngValidatingReader (
  65                                         reader, pattern);
  66                         rvr.ReportDetails = true;
  67                         return rvr;
  68                 }
  69
  70                 public override XmlReader CreateAttributeValidator (
  71                         XmlReader reader,
  72                         XmlResolver resolver)
  73                 {
  74                         // XmlResolver is never used.
  75                         RelaxngValidatingReader rvr =
  76                                 new RelaxngValidatingReader (
  77                                         reader, pattern);
  78                         rvr.ReportDetails = true;
  79                         return rvr;
  80                 }
  81
  82                 public override bool AddOption (string name, string arg)
  83                 {
  84                         return false;
  85                 }
  86
  87                 public override bool HandleError (Exception ex, XmlReader reader, string nvdlLocation)
  88                 {
  89                         if (ex is RelaxngException)
  90                                 throw new NvdlInstanceValidationException (String.Format ("RELAX NG validation error occured as a part of NVDL validation: " + ex.Message), ex, this, nvdlLocation);
  91                         return false;
  92                 }
  93         }
  94 }