mcs/class/System.Runtime.Serialization/System.Xml/XmlDictionaryWriter.cs

   1 //
   2 // XmlDictionaryWriter.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2005 Novell, Inc.  http://www.novell.com
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28 #if NET_2_0
  29 using System;
  30 using System.IO;
  31 using System.Text;
  32
  33 namespace System.Xml
  34 {
  35         public abstract partial class XmlDictionaryWriter : XmlWriter
  36         {
  37                 static readonly Encoding utf8_unmarked = new UTF8Encoding (false);
  38
  39                 int depth;
  40
  41                 protected XmlDictionaryWriter ()
  42                 {
  43                 }
  44
  45                 internal int Depth {
  46                         get { return depth; }
  47                         set { depth = value; }
  48                 }
  49
  50                 public virtual bool CanCanonicalize {
  51                         get { return false; }
  52                 }
  53
  54                 public static XmlDictionaryWriter CreateBinaryWriter (
  55                         Stream stream)
  56                 {
  57                         return CreateBinaryWriter (stream, null, null, false);
  58                 }
  59
  60                 public static XmlDictionaryWriter CreateBinaryWriter (
  61                         Stream stream, IXmlDictionary dictionary)
  62                 {
  63                         return CreateBinaryWriter (stream, dictionary, null, false);
  64                 }
  65
  66                 public static XmlDictionaryWriter CreateBinaryWriter (
  67                         Stream stream, IXmlDictionary dictionary,
  68                         XmlBinaryWriterSession session)
  69                 {
  70                         return CreateBinaryWriter (stream, dictionary, session, false);
  71                 }
  72
  73                 public static XmlDictionaryWriter CreateBinaryWriter (
  74                         Stream stream, IXmlDictionary dictionary,
  75                         XmlBinaryWriterSession session, bool ownsStream)
  76                 {
  77                         return new XmlBinaryDictionaryWriter (stream,
  78                                 dictionary, session, ownsStream);
  79                 }
  80
  81                 public static XmlDictionaryWriter CreateDictionaryWriter (XmlWriter writer)
  82                 {
  83                         return new XmlSimpleDictionaryWriter (writer);
  84                 }
  85
  86                 public static XmlDictionaryWriter CreateMtomWriter (
  87                         Stream stream, Encoding encoding, int maxSizeInBytes,
  88                         string startInfo)
  89                 {
  90                         return CreateMtomWriter (stream, encoding,
  91                                 maxSizeInBytes, startInfo, Guid.NewGuid () + "id=1", "http://tempuri.org/0/" + DateTime.Now.Ticks, true, false);
  92                 }
  93
  94                 public static XmlDictionaryWriter CreateMtomWriter (
  95                         Stream stream, Encoding encoding, int maxSizeInBytes,
  96                         string startInfo, string boundary, string startUri,
  97                         bool writeMessageHeaders, bool ownsStream)
  98                 {
  99                         return new XmlMtomDictionaryWriter (stream, encoding, maxSizeInBytes, startInfo, boundary, startUri, writeMessageHeaders, ownsStream);
 100                 }
 101
 102                 public static XmlDictionaryWriter CreateTextWriter (
 103                         Stream stream)
 104                 {
 105                         return CreateTextWriter (stream, Encoding.UTF8);
 106                 }
 107
 108                 public static XmlDictionaryWriter CreateTextWriter (
 109                         Stream stream, Encoding encoding)
 110                 {
 111                         return CreateTextWriter (stream, encoding, false);
 112                 }
 113
 114                 // BTW looks like it creates an instance of different
 115                 // implementation than those from XmlWriter.Create().
 116                 public static XmlDictionaryWriter CreateTextWriter (
 117                         Stream stream, Encoding encoding, bool ownsStream)
 118                 {
 119                         if (stream == null)
 120                                 throw new ArgumentNullException ("stream");
 121                         if (encoding == null)
 122                                 throw new ArgumentNullException ("encoding");
 123
 124                         switch (encoding.CodePage) {
 125                         case 1200:
 126                         case 1201: // utf-16
 127                         case 65001: // utf-8
 128                                 encoding = utf8_unmarked;
 129                                 break;
 130                         default:
 131                                 throw new XmlException (String.Format ("XML declaration is required for encoding code page {0} but this XmlWriter does not support XML declaration.", encoding.CodePage));
 132                         }
 133
 134                         XmlWriterSettings s = new XmlWriterSettings ();
 135                         s.Encoding = encoding;
 136                         s.CloseOutput = ownsStream;
 137                         s.OmitXmlDeclaration = true;
 138                         return CreateDictionaryWriter (XmlWriter.Create (stream, s));
 139                 }
 140
 141                 public virtual void EndCanonicalization ()
 142                 {
 143                         throw new NotSupportedException ();
 144                 }
 145
 146                 public virtual void StartCanonicalization (
 147                         Stream stream, bool includeComments,
 148                         string [] inclusivePrefixes)
 149                 {
 150                         throw new NotSupportedException ();
 151                 }
 152
 153                 public void WriteAttributeString (
 154                         XmlDictionaryString localName,
 155                         XmlDictionaryString namespaceUri,
 156                         string value)
 157                 {
 158                         WriteAttributeString (null, localName, namespaceUri, value);
 159                 }
 160
 161                 public void WriteAttributeString (string prefix,
 162                         XmlDictionaryString localName,
 163                         XmlDictionaryString namespaceUri,
 164                         string value)
 165                 {
 166                         WriteStartAttribute (prefix, localName, namespaceUri);
 167                         WriteString (value);
 168                         WriteEndAttribute ();
 169                 }
 170
 171                 public void WriteElementString (
 172                         XmlDictionaryString localName,
 173                         XmlDictionaryString namespaceUri,
 174                         string value)
 175                 {
 176                         WriteElementString (null, localName, namespaceUri, value);
 177                 }
 178
 179                 public void WriteElementString (string prefix,
 180                         XmlDictionaryString localName,
 181                         XmlDictionaryString namespaceUri,
 182                         string value)
 183                 {
 184                         WriteStartElement (prefix, localName, namespaceUri);
 185                         WriteString (value);
 186                         WriteEndElement ();
 187                 }
 188
 189                 [MonoTODO ("make use of dictionary reader optimization")]
 190                 public virtual void WriteNode (XmlDictionaryReader reader,
 191                         bool defattr)
 192                 {
 193                         if (reader == null)
 194                                 throw new ArgumentNullException ("reader");
 195
 196                         switch (reader.NodeType) {
 197                         case XmlNodeType.Element:
 198                                 // gratuitously copied from System.XML/System.Xml/XmlWriter.cs:WriteNode(XmlReader,bool)
 199                                 // as there doesn't seem to be a way to hook into attribute writing w/o handling Element.
 200                                 WriteStartElement (reader.Prefix, reader.LocalName, reader.NamespaceURI);
 201                                 // Well, I found that MS.NET took this way, since
 202                                 // there was a error-prone SgmlReader that fails
 203                                 // MoveToNextAttribute().
 204                                 if (reader.HasAttributes) {
 205                                         for (int i = 0; i < reader.AttributeCount; i++) {
 206                                                 reader.MoveToAttribute (i);
 207                                                 WriteAttribute (reader, defattr);
 208                                         }
 209                                         reader.MoveToElement ();
 210                                 }
 211                                 reader.Read ();
 212                                 WriteNode (reader, defattr);
 213                                 break;
 214                         case XmlNodeType.Attribute:
 215                         case XmlNodeType.Text:
 216                                 WriteTextNode (reader, defattr);
 217                                 break;
 218                         default:
 219                                 base.WriteNode (reader, defattr);
 220                                 break;
 221                         }
 222                 }
 223
 224                 private void WriteAttribute (XmlDictionaryReader reader, bool defattr)
 225                 {
 226                         if (!defattr && reader.IsDefault)
 227                                 return;
 228
 229                         WriteStartAttribute (reader.Prefix, reader.LocalName, reader.NamespaceURI);
 230 #if NET_2_1
 231                         // no ReadAttributeValue() in 2.1 profile.
 232                         WriteTextNode (reader, true);
 233 #else
 234                         while (reader.ReadAttributeValue ()) {
 235                                 switch (reader.NodeType) {
 236                                 case XmlNodeType.Text:
 237                                         WriteTextNode (reader, true);
 238                                         break;
 239                                 case XmlNodeType.EntityReference:
 240                                         WriteEntityRef (reader.Name);
 241                                         break;
 242                                 }
 243                         }
 244 #endif
 245                         WriteEndAttribute ();
 246                 }
 247
 248                 public override void WriteNode (XmlReader reader, bool defattr)
 249                 {
 250                         if (reader == null)
 251                                 throw new ArgumentNullException ("reader");
 252
 253                         XmlDictionaryReader dr = reader as XmlDictionaryReader;
 254                         if (dr != null)
 255                                 WriteNode (dr, defattr);
 256                         else
 257                                 base.WriteNode (reader, defattr);
 258                 }
 259
 260                 public virtual void WriteQualifiedName (
 261                         XmlDictionaryString localName,
 262                         XmlDictionaryString namespaceUri)
 263                 {
 264                         WriteQualifiedName (localName.Value, namespaceUri.Value);
 265                 }
 266
 267                 public void WriteStartAttribute (
 268                         XmlDictionaryString localName,
 269                         XmlDictionaryString namespaceUri)
 270                 {
 271                         WriteStartAttribute (localName.Value, namespaceUri.Value);
 272                 }
 273
 274                 public virtual void WriteStartAttribute (string prefix,
 275                         XmlDictionaryString localName,
 276                         XmlDictionaryString namespaceUri)
 277                 {
 278                         WriteStartAttribute (prefix, localName.Value, namespaceUri.Value);
 279                 }
 280
 281                 public void WriteStartElement (
 282                         XmlDictionaryString localName,
 283                         XmlDictionaryString namespaceUri)
 284                 {
 285                         WriteStartElement (null, localName, namespaceUri);
 286                 }
 287
 288                 public virtual void WriteStartElement (string prefix,
 289                         XmlDictionaryString localName,
 290                         XmlDictionaryString namespaceUri)
 291                 {
 292                         if (localName == null)
 293                                 throw new ArgumentException ("localName must not be null.", "localName");
 294                         WriteStartElement (prefix, localName.Value,
 295                                         namespaceUri != null ? namespaceUri.Value : null);
 296                 }
 297
 298                 public virtual void WriteString (XmlDictionaryString value)
 299                 {
 300                         WriteString (value.Value);
 301                 }
 302
 303                 protected virtual void WriteTextNode (XmlDictionaryReader reader, bool isAttribute)
 304                 {
 305                         WriteString (reader.Value);
 306                         if (!isAttribute)
 307                                 reader.Read ();
 308                 }
 309
 310                 public virtual void WriteValue (Guid guid)
 311                 {
 312                         WriteString (guid.ToString ());
 313                 }
 314
 315                 public virtual void WriteValue (IStreamProvider value)
 316                 {
 317                         if (value == null)
 318                                 throw new ArgumentNullException ("value");
 319
 320                         Stream stream = value.GetStream ();
 321                         byte[] buf = new byte [Math.Min (2048, stream.CanSeek ? stream.Length : 2048)];
 322                         int read;
 323                         while ((read = stream.Read (buf, 0, buf.Length)) > 0) {
 324                                 WriteBase64 (buf, 0, read);
 325                         }
 326                         value.ReleaseStream (stream);
 327                 }
 328
 329                 public virtual void WriteValue (TimeSpan duration)
 330                 {
 331                         WriteString (XmlConvert.ToString (duration));
 332                 }
 333
 334                 public virtual void WriteValue (UniqueId id)
 335                 {
 336                         if (id == null)
 337                                 throw new ArgumentNullException ("id");
 338                         WriteString (id.ToString ());
 339                 }
 340
 341                 public virtual void WriteValue (XmlDictionaryString value)
 342                 {
 343                         WriteValue (value.Value);
 344                 }
 345
 346                 public virtual void WriteXmlAttribute (string localName, string value)
 347                 {
 348                         WriteAttributeString ("xml", localName, "http://www.w3.org/XML/1998/namespace", value);
 349                 }
 350
 351                 public virtual void WriteXmlAttribute (XmlDictionaryString localName,
 352                         XmlDictionaryString value)
 353                 {
 354                         WriteXmlAttribute (localName.Value, value.Value);
 355                 }
 356
 357                 public virtual void WriteXmlnsAttribute (
 358                         string prefix, string namespaceUri)
 359                 {
 360                         // BTW .NET 2.0 those XmlWriters from XmlWrite.Create()
 361                         // rejects namespace overriding i.e.
 362                         //
 363                         //      xw.WriteStartElement ("foo", "urn:foo");
 364                         //      xw.WriteXmlnsAttribute ("foo", "urn:bar");
 365                         //
 366                         // causes an XmlException. We need fix in sys.xml.dll
 367
 368                         // When the prefix is null, this writer must mock
 369                         // a dummy namespace up. It is then up to the actual
 370                         // writer how it is determined in the output. (When
 371                         // there is a duplicate, then it will be further
 372                         // modified.)
 373                         if (prefix == null)
 374                                 prefix = "d" + Depth + "p1";
 375
 376                         if (prefix == String.Empty)
 377                                 WriteAttributeString ("xmlns", namespaceUri);
 378                         else
 379                                 WriteAttributeString ("xmlns", prefix, "http://www.w3.org/2000/xmlns/", namespaceUri);
 380                 }
 381
 382                 public virtual void WriteXmlnsAttribute (string prefix,
 383                         XmlDictionaryString namespaceUri)
 384                 {
 385                         WriteXmlnsAttribute (prefix, namespaceUri.Value);
 386                 }
 387         }
 388 }
 389 #endif