/// <summary>
/// Modifies the <see cref="RssFeed"/> to match the data source.
/// </summary>
/// <param name="resource">The <see cref="RssFeed"/> to be filled.</param>
/// <exception cref="ArgumentNullException">The <paramref name="resource"/> is a null reference (Nothing in Visual Basic).</exception>
public void Fill(RssFeed resource)
{
Guard.ArgumentNotNull(resource, "resource");
XmlNamespaceManager manager = new XmlNamespaceManager(this.Navigator.NameTable);
manager.AddNamespace("rdf", "http://www.w3.org/1999/02/22-rdf-syntax-ns#");
manager.AddNamespace("rss", "http://purl.org/rss/1.0/");
XPathNavigator channelNavigator = this.Navigator.SelectSingleNode("rdf:RDF/rss:channel", manager);
if (channelNavigator != null)
{
Rss10SyndicationResourceAdapter.FillChannel(resource.Channel, channelNavigator, manager, this.Settings);
}
XPathNavigator imageNavigator = this.Navigator.SelectSingleNode("rdf:RDF/rss:image", manager);
if (imageNavigator != null)
{
resource.Channel.Image = new RssImage();
Rss10SyndicationResourceAdapter.FillImage(resource.Channel.Image, imageNavigator, manager, this.Settings);
}
XPathNavigator textInputNavigator = this.Navigator.SelectSingleNode("rdf:RDF/rss:textinput", manager);
if (textInputNavigator != null)
{
resource.Channel.TextInput = new RssTextInput();
Rss10SyndicationResourceAdapter.FillTextInput(resource.Channel.TextInput, textInputNavigator, manager, this.Settings);
}
XPathNodeIterator itemIterator = this.Navigator.Select("rdf:RDF/rss:item", manager);
if (itemIterator != null && itemIterator.Count > 0)
{
int counter = 0;
while (itemIterator.MoveNext())
{
RssItem item = new RssItem();
counter++;
if (this.Settings.RetrievalLimit != 0 && counter > this.Settings.RetrievalLimit)
{
break;
}
XPathNavigator itemTitleNavigator = itemIterator.Current.SelectSingleNode("rss:title", manager);
XPathNavigator itemLinkNavigator = itemIterator.Current.SelectSingleNode("rss:link", manager);
XPathNavigator itemDescriptionNavigator = itemIterator.Current.SelectSingleNode("rss:description", manager);
if (itemTitleNavigator != null)
{
item.Title = itemTitleNavigator.Value;
}
if (itemLinkNavigator != null)
{
Uri link;
if (Uri.TryCreate(itemLinkNavigator.Value, UriKind.RelativeOrAbsolute, out link))
{
item.Link = link;
}
}
if (itemDescriptionNavigator != null)
{
item.Description = itemDescriptionNavigator.Value;
}
SyndicationExtensionAdapter itemExtensionAdapter = new SyndicationExtensionAdapter(itemIterator.Current, this.Settings);
itemExtensionAdapter.Fill(item, manager);
((Collection <RssItem>)resource.Channel.Items).Add(item);
}
}
SyndicationExtensionAdapter feedExtensionAdapter = new SyndicationExtensionAdapter(this.Navigator.SelectSingleNode("rdf:RDF", manager), this.Settings);
feedExtensionAdapter.Fill(resource, manager);
}