mcs/class/System.ServiceModel.Web/System.ServiceModel.Syndication/AtomPub10ServiceDocumentFormatter.cs

   1 //
   2 // AtomPub10ServiceDocumentFormatter.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2009 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 using System;
  29 using System.Collections.Generic;
  30 using System.IO;
  31 using System.ServiceModel;
  32 using System.ServiceModel.Channels;
  33 using System.Xml;
  34 using System.Xml.Schema;
  35 using System.Xml.Serialization;
  36
  37 namespace System.ServiceModel.Syndication
  38 {
  39         class Namespaces
  40         {
  41                 public const string Xml = "http://www.w3.org/XML/1998/namespace";
  42                 public const string Xmlns = "http://www.w3.org/2000/xmlns/";
  43                 public const string AtomPP = "http://www.w3.org/2007/app";
  44                 public const string Atom10 = "http://www.w3.org/2005/Atom";
  45         }
  46
  47         [XmlRoot ("service", Namespace = Namespaces.AtomPP)]
  48         public class AtomPub10ServiceDocumentFormatter : ServiceDocumentFormatter, IXmlSerializable
  49         {
  50                 public AtomPub10ServiceDocumentFormatter ()
  51                 {
  52                 }
  53
  54                 public AtomPub10ServiceDocumentFormatter (ServiceDocument documentToWrite)
  55                         : base (documentToWrite)
  56                 {
  57                 }
  58
  59                 public AtomPub10ServiceDocumentFormatter (Type documentTypeToCreate)
  60                 {
  61                         doc_type = documentTypeToCreate;
  62                 }
  63
  64                 Type doc_type;
  65
  66                 public override string Version {
  67                         get { return Namespaces.AtomPP; }
  68                 }
  69
  70                 public override bool CanRead (XmlReader reader)
  71                 {
  72                         if (reader == null)
  73                                 throw new ArgumentNullException ("reader");
  74                         reader.MoveToContent ();
  75                         return reader.LocalName == "service" && reader.NamespaceURI == Version;
  76                 }
  77
  78                 protected override ServiceDocument CreateDocumentInstance ()
  79                 {
  80                         var doc = doc_type != null ? (ServiceDocument) Activator.CreateInstance (doc_type, new object [0]) : base.CreateDocumentInstance ();
  81                         doc.InternalFormatter = this;
  82                         return doc;
  83                 }
  84
  85                 public override void ReadFrom (XmlReader reader)
  86                 {
  87                         if (!Document.TryParseElement (reader, Version))
  88                                 throw new XmlException (String.Format ("Unexpected element '{0}' in namespace '{1}'", reader.LocalName, reader.NamespaceURI));
  89                 }
  90
  91                 public override void WriteTo (XmlWriter writer)
  92                 {
  93                         if (writer == null)
  94                                 throw new ArgumentNullException ("writer");
  95
  96                         writer.WriteStartElement ("app", "service", Version);
  97
  98                         WriteContentTo (writer);
  99
 100                         writer.WriteEndElement ();
 101                 }
 102
 103                 void WriteContentTo (XmlWriter writer)
 104                 {
 105                         if (writer.LookupPrefix (Namespaces.Atom10) == null)
 106                                 writer.WriteAttributeString ("xmlns", "a10", Namespaces.Xmlns, Namespaces.Atom10);
 107                         if (writer.LookupPrefix (Version) == null)
 108                                 writer.WriteAttributeString ("xmlns", "app", Namespaces.Xmlns, Version);
 109
 110                         // xml:lang, xml:base, workspace*
 111                         if (Document.Language != null)
 112                                 writer.WriteAttributeString ("xml", "lang", Namespaces.Xml, Document.Language);
 113                         if (Document.BaseUri != null)
 114                                 writer.WriteAttributeString ("xml", "base", Namespaces.Xml, Document.BaseUri.ToString ());
 115
 116                         Document.WriteAttributeExtensions (writer, Version);
 117                         Document.WriteElementExtensions (writer, Version);
 118
 119                         foreach (var ws in Document.Workspaces) {
 120                                 writer.WriteStartElement ("app", "workspace", Version);
 121
 122                                 // xml:base, title, collection*
 123                                 if (ws.BaseUri != null)
 124                                         writer.WriteAttributeString ("xml", "base", Namespaces.Xml, ws.BaseUri.ToString ());
 125
 126                                 ws.WriteAttributeExtensions (writer, Version);
 127                                 ws.WriteElementExtensions (writer, Version);
 128
 129                                 if (ws.Title != null)
 130                                         ws.Title.WriteTo (writer, "title", Namespaces.Atom10);
 131                                 foreach (var rc in ws.Collections) {
 132                                         writer.WriteStartElement ("app", "collection", Version);
 133
 134                                         // accept*, xml:base, category, @href, title
 135                                         if (rc.BaseUri != null)
 136                                                 writer.WriteAttributeString ("xml", "base", Namespaces.Xml, rc.BaseUri.ToString ());
 137                                         if (rc.Link != null)
 138                                                 writer.WriteAttributeString ("href", rc.Link.ToString ());
 139
 140                                         rc.WriteAttributeExtensions (writer, Version);
 141
 142                                         if (rc.Title != null)
 143                                                 rc.Title.WriteTo (writer, "title", Namespaces.Atom10);
 144                                         foreach (var s in rc.Accepts) {
 145                                                 writer.WriteStartElement ("app", "accept", Version);
 146                                                 writer.WriteString (s);
 147                                                 writer.WriteEndElement ();
 148                                         }
 149                                         foreach (var cat in rc.Categories)
 150                                                 cat.Save (writer);
 151
 152                                         writer.WriteEndElement ();
 153                                 }
 154                                 writer.WriteEndElement ();
 155                         }
 156                 }
 157
 158                 XmlSchema IXmlSerializable.GetSchema ()
 159                 {
 160                         return null;
 161                 }
 162
 163                 void IXmlSerializable.ReadXml (XmlReader reader)
 164                 {
 165                         ReadFrom (reader);
 166                 }
 167
 168                 void IXmlSerializable.WriteXml (XmlWriter writer)
 169                 {
 170                         WriteContentTo (writer);
 171                 }
 172         }
 173 }