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

   1 //
   2 // System.Xml.Schema.XmlSchemaCollection.cs
   3 //
   4 // Authors:
   5 //      Dwivedi, Ajay kumar  Adwiv@Yahoo.com
   6 //      Atsushi Enomoto      ginga@kit.hi-ho.ne.jp
   7 //
   8
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29 using System;
  30 using System.Collections;
  31 using System.Xml;
  32
  33
  34 namespace System.Xml.Schema
  35 {
  36         /// <summary>
  37         /// Summary description for XmlSchemaCollection.
  38         ///
  39         /// It is just a wrapper for XmlSchemaSet (unlike MS.NET, our
  40         /// XmlSchemaCollection is originally designed to be conformant to
  41         /// W3C specification).
  42         /// </summary>
  43 #if NET_2_0
  44         [Obsolete ("Use XmlSchemaSet.")]
  45 #endif
  46         public sealed class XmlSchemaCollection : ICollection, IEnumerable
  47         {
  48                 //private fields
  49                 private XmlSchemaSet schemaSet;
  50
  51                 public XmlSchemaCollection ()
  52                         : this (new NameTable ())
  53                 {
  54                 }
  55
  56                 public XmlSchemaCollection (XmlNameTable nameTable)
  57                         : this (new XmlSchemaSet (nameTable))
  58                 {
  59                         schemaSet.ValidationEventHandler += new ValidationEventHandler (OnValidationError);
  60                 }
  61
  62                 internal XmlSchemaCollection (XmlSchemaSet schemaSet)
  63                 {
  64                         this.schemaSet = schemaSet;
  65                 }
  66
  67                 //properties
  68                 internal XmlSchemaSet SchemaSet {
  69                         get { return schemaSet; }
  70                 }
  71
  72                 public int Count {
  73                         get { return schemaSet.Count; }
  74                 }
  75
  76                 public XmlNameTable NameTable {
  77                         get { return schemaSet.NameTable; }
  78                 }
  79
  80                 public XmlSchema this [ string ns ] {
  81                         get {
  82                                 ICollection col = schemaSet.Schemas (ns);
  83                                 if (col == null)
  84                                         return null;
  85                                 IEnumerator e = col.GetEnumerator ();
  86                                 if (e.MoveNext ())
  87                                         return (XmlSchema) e.Current;
  88                                 else
  89                                         return null;
  90                         }
  91                 }
  92
  93                 // Events
  94                 public event ValidationEventHandler ValidationEventHandler;
  95
  96                 // Methods
  97                 public XmlSchema Add (string ns, XmlReader reader)
  98                 {
  99                         return Add (ns, reader, new XmlUrlResolver ());
 100                 }
 101
 102 #if NET_1_1
 103                 public XmlSchema Add (string ns, XmlReader reader, XmlResolver resolver)
 104 #else
 105                 internal XmlSchema Add (string ns, XmlReader reader, XmlResolver resolver)
 106 #endif
 107                 {
 108                         XmlSchema schema = XmlSchema.Read (reader, ValidationEventHandler);
 109                         if (schema.TargetNamespace == null)
 110                                 schema.TargetNamespace = ns;
 111                         else if (ns != null && schema.TargetNamespace != ns)
 112                                 throw new XmlSchemaException ("The actual targetNamespace in the schema does not match the parameter.");
 113
 114                         return Add (schema);
 115                 }
 116
 117                 public XmlSchema Add (string ns, string uri)
 118                 {
 119                         XmlReader reader = new XmlTextReader (uri);
 120                         try {
 121                                 return Add (ns, reader);
 122                         } finally {
 123                                 reader.Close ();
 124                         }
 125                 }
 126
 127                 public XmlSchema Add (XmlSchema schema)
 128                 {
 129                         return Add (schema, new XmlUrlResolver ());
 130                 }
 131
 132                 public XmlSchema Add (XmlSchema schema, XmlResolver resolver)
 133                 {
 134                         if (schema == null)
 135                                 throw new ArgumentNullException ("schema");
 136
 137                         XmlSchemaSet xss = new XmlSchemaSet (schemaSet.NameTable);
 138                         xss.Add (schemaSet);
 139
 140                         // FIXME: maybe it requires Reprocess()
 141                         xss.Add (schema);
 142                         xss.ValidationEventHandler += ValidationEventHandler;
 143                         xss.XmlResolver = resolver;
 144                         xss.Compile ();
 145                         if (!xss.IsCompiled)
 146                                 return null;
 147                         // It is set only when the compilation was successful.
 148                         schemaSet = xss;
 149                         return schema;
 150                 }
 151
 152                 public void Add (XmlSchemaCollection schema)
 153                 {
 154                         if (schema == null)
 155                                 throw new ArgumentNullException ("schema");
 156
 157                         XmlSchemaSet xss = new XmlSchemaSet (schemaSet.NameTable);
 158                         xss.Add (schemaSet);
 159
 160                         // FIXME: maybe it requires Reprocess()
 161                         xss.Add (schema.schemaSet);
 162                         xss.ValidationEventHandler += ValidationEventHandler;
 163                         xss.XmlResolver = schemaSet.XmlResolver;
 164                         xss.Compile ();
 165                         if (!xss.IsCompiled)
 166                                 return;
 167                         // It is set only when the compilation was successful.
 168                         schemaSet = xss;
 169                 }
 170
 171                 public bool Contains (string ns)
 172                 {
 173                         lock (schemaSet) {
 174                                 return schemaSet.Contains (ns);
 175                         }
 176                 }
 177
 178                 public bool Contains (XmlSchema schema)
 179                 {
 180                         lock (schemaSet) {
 181                                 return schemaSet.Contains (schema);
 182                         }
 183                 }
 184
 185                 public void CopyTo (XmlSchema[] array, int index)
 186                 {
 187                         lock (schemaSet) {
 188                                 schemaSet.CopyTo (array, index);
 189                         }
 190                 }
 191
 192                 public XmlSchemaCollectionEnumerator GetEnumerator ()
 193                 {
 194                         // The actual collection is schemaSet.Schemas()
 195                         return new XmlSchemaCollectionEnumerator(schemaSet.Schemas());
 196                 }
 197
 198                 int ICollection.Count {
 199                         get { return Count; }
 200                 }
 201
 202                 // interface Methods
 203                 void ICollection.CopyTo (Array array, int index)
 204                 {
 205                         lock (schemaSet) {
 206                                 schemaSet.CopyTo (array, index);
 207                         }
 208                 }
 209
 210                 bool ICollection.IsSynchronized
 211                 {
 212                         get { return true; } // always
 213                 }
 214
 215                 IEnumerator IEnumerable.GetEnumerator ()
 216                 {
 217                         return this.GetEnumerator ();
 218                 }
 219
 220                 Object ICollection.SyncRoot
 221                 {
 222                         get { return this; }
 223                 }
 224
 225                 void OnValidationError (object o, ValidationEventArgs e)
 226                 {
 227                         if (ValidationEventHandler != null)
 228                                 ValidationEventHandler (o, e);
 229                         else if (e.Severity == XmlSeverityType.Error)
 230                                 throw e.Exception;
 231                 }
 232
 233         }
 234 }