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

   1 //
   2 // ServiceDocument.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.Collections.ObjectModel;
  31 using System.IO;
  32 using System.ServiceModel;
  33 using System.ServiceModel.Channels;
  34 using System.Xml;
  35
  36 namespace System.ServiceModel.Syndication
  37 {
  38         public class ServiceDocument
  39         {
  40                 public static TServiceDocument Load<TServiceDocument> (XmlReader reader)
  41                         where TServiceDocument : ServiceDocument, new()
  42                 {
  43                         var doc = new TServiceDocument ();
  44                         new AtomPub10ServiceDocumentFormatter<TServiceDocument> (doc).ReadFrom (reader);
  45                         return doc;
  46                 }
  47
  48                 public static ServiceDocument Load (XmlReader reader)
  49                 {
  50                         return Load<ServiceDocument> (reader);
  51                 }
  52
  53
  54                 public ServiceDocument ()
  55                 {
  56                         Workspaces = new Collection<Workspace> ();
  57                 }
  58
  59                 public ServiceDocument (IEnumerable<Workspace> workspaces)
  60                         : this ()
  61                 {
  62                         if (workspaces != null)
  63                                 foreach (var w in workspaces)
  64                                         Workspaces.Add (w);
  65                 }
  66
  67                 ServiceDocumentFormatter formatter;
  68                 SyndicationExtensions extensions = new SyndicationExtensions ();
  69
  70                 internal ServiceDocumentFormatter InternalFormatter {
  71                         set { formatter = value; }
  72                 }
  73
  74                 public Dictionary<XmlQualifiedName, string> AttributeExtensions {
  75                         get { return extensions.Attributes; }
  76                 }
  77
  78                 public Uri BaseUri { get; set; }
  79
  80                 public SyndicationElementExtensionCollection ElementExtensions {
  81                         get { return extensions.Elements; }
  82                 }
  83
  84                 public string Language { get; set; }
  85
  86                 public Collection<Workspace> Workspaces { get; private set; }
  87
  88
  89                 protected internal virtual Workspace CreateWorkspace ()
  90                 {
  91                         return new Workspace ();
  92                 }
  93
  94                 public ServiceDocumentFormatter GetFormatter ()
  95                 {
  96                         if (formatter == null)
  97                                 formatter = new AtomPub10ServiceDocumentFormatter (this);
  98                         return formatter;
  99                 }
 100
 101                 public void Save (XmlWriter writer)
 102                 {
 103                         GetFormatter ().WriteTo (writer);
 104                 }
 105
 106                 protected internal virtual bool TryParseAttribute (string name, string ns, string value, string version)
 107                 {
 108                         if (version != "http://www.w3.org/2007/app")
 109                                 return false;
 110
 111                         switch (ns) {
 112                         case "http://www.w3.org/XML/1998/namespace":
 113                                 switch (name) {
 114                                 case "base":
 115                                         BaseUri = new Uri (value, UriKind.RelativeOrAbsolute);
 116                                         return true;
 117                                 case "lang":
 118                                         Language = value;
 119                                         return true;
 120                                 }
 121                                 return false;
 122                         }
 123                         return false;
 124                 }
 125
 126                 protected internal virtual bool TryParseElement (XmlReader reader, string version)
 127                 {
 128                         if (reader == null)
 129                                 throw new ArgumentNullException ("reader");
 130
 131                         reader.MoveToContent ();
 132
 133                         if (reader.LocalName != "service" || reader.NamespaceURI != version)
 134                                 return false;
 135
 136                         for (int i = 0; i < reader.AttributeCount; i++) {
 137                                 reader.MoveToAttribute (i);
 138                                 if (!TryParseAttribute (reader.LocalName, reader.NamespaceURI, reader.Value, version))
 139                                         AttributeExtensions.Add (new XmlQualifiedName (reader.LocalName, reader.NamespaceURI), reader.Value);
 140                         }
 141                         reader.MoveToElement ();
 142
 143                         if (reader.IsEmptyElement)
 144                                 throw new XmlException ("AtomPP service element requires at least one workspace element");
 145
 146                         reader.ReadStartElement ();
 147
 148                         for (reader.MoveToContent (); reader.NodeType != XmlNodeType.EndElement; reader.MoveToContent ()) {
 149                                 if (reader.LocalName == "workspace" && reader.NamespaceURI == version) {
 150                                         var ws = CreateWorkspace ();
 151                                         if (ws.TryParseElement (reader, version)) {
 152                                                 Workspaces.Add (ws);
 153                                                 continue;
 154                                         }
 155                                 }
 156                                 ElementExtensions.Add (new SyndicationElementExtension (reader));
 157                         }
 158
 159                         reader.ReadEndElement ();
 160
 161                         return true;
 162                 }
 163
 164                 protected internal virtual void WriteAttributeExtensions (XmlWriter writer, string version)
 165                 {
 166                         extensions.WriteAttributeExtensions (writer, version);
 167                 }
 168
 169                 protected internal virtual void WriteElementExtensions (XmlWriter writer, string version)
 170                 {
 171                         extensions.WriteElementExtensions (writer, version);
 172                 }
 173         }
 174 }