/// <summary>
/// Modifies the <see cref="RsdDocument"/> to match the data source.
/// </summary>
/// <param name="resource">The <see cref="RsdDocument"/> to be filled.</param>
/// <exception cref="ArgumentNullException">The <paramref name="resource"/> is a null reference (Nothing in Visual Basic).</exception>
public void Fill(RsdDocument resource)
{
//------------------------------------------------------------
// Validate parameter
//------------------------------------------------------------
Guard.ArgumentNotNull(resource, "resource");
//------------------------------------------------------------
// Create namespace resolver
//------------------------------------------------------------
XmlNamespaceManager manager = RsdUtility.CreateNamespaceManager(this.Navigator.NameTable);
//------------------------------------------------------------
// Attempt to fill syndication resource
//------------------------------------------------------------
XPathNavigator serviceNavigator = RsdUtility.SelectSafeSingleNode(this.Navigator, "rsd:rsd/rsd:service", manager);
if (serviceNavigator == null)
{
// dasBlog places an empty default XML namespace on the <service> element, this is a hack/compromise
serviceNavigator = RsdUtility.SelectSafeSingleNode(this.Navigator, "rsd:rsd/service", manager);
}
if (serviceNavigator != null)
{
XPathNavigator engineNameNavigator = RsdUtility.SelectSafeSingleNode(serviceNavigator, "rsd:engineName", manager);
XPathNavigator engineLinkNavigator = RsdUtility.SelectSafeSingleNode(serviceNavigator, "rsd:engineLink", manager);
XPathNavigator homePageLinkNavigator = RsdUtility.SelectSafeSingleNode(serviceNavigator, "rsd:homePageLink", manager);
XPathNodeIterator apiIterator = RsdUtility.SelectSafe(serviceNavigator, "rsd:apis/rsd:api", manager);
if (engineNameNavigator != null && !String.IsNullOrEmpty(engineNameNavigator.Value))
{
resource.EngineName = engineNameNavigator.Value;
}
if (engineLinkNavigator != null)
{
Uri link;
if (Uri.TryCreate(engineLinkNavigator.Value, UriKind.RelativeOrAbsolute, out link))
{
resource.EngineLink = link;
}
}
if (homePageLinkNavigator != null)
{
Uri homepage;
if (Uri.TryCreate(homePageLinkNavigator.Value, UriKind.RelativeOrAbsolute, out homepage))
{
resource.Homepage = homepage;
}
}
if (apiIterator != null && apiIterator.Count > 0)
{
int counter = 0;
while (apiIterator.MoveNext())
{
RsdApplicationInterface api = new RsdApplicationInterface();
counter++;
Uri link;
string rpcLinkAttribute = apiIterator.Current.GetAttribute("rpcLink", String.Empty);
if (Uri.TryCreate(rpcLinkAttribute, UriKind.RelativeOrAbsolute, out link))
{
api.Link = link;
}
if (api.Load(apiIterator.Current, this.Settings) || api.Link != null)
{
if (this.Settings.RetrievalLimit != 0 && counter > this.Settings.RetrievalLimit)
{
break;
}
((Collection<RsdApplicationInterface>)resource.Interfaces).Add(api);
}
}
}
}
SyndicationExtensionAdapter adapter = new SyndicationExtensionAdapter(RsdUtility.SelectSafeSingleNode(this.Navigator, "rsd:rsd", manager), this.Settings);
adapter.Fill(resource, manager);
}
/// <summary>
/// Creates a new <see cref="RsdDocument"/> instance using the specified <see cref="Uri"/>, <see cref="ICredentials"/>, <see cref="IWebProxy"/>, and <see cref="SyndicationResourceLoadSettings"/> object.
/// </summary>
/// <param name="source">A <see cref="Uri"/> that represents the URL of the syndication resource XML data.</param>
/// <param name="options">A <see cref="WebRequestOptions"/> that holds options that should be applied to web requests.</param>
/// <param name="settings">The <see cref="SyndicationResourceLoadSettings"/> object used to configure the <see cref="RsdDocument"/> instance. This value can be <b>null</b>.</param>
/// <returns>An <see cref="RsdDocument"/> object loaded using the <paramref name="source"/> data.</returns>
/// <exception cref="ArgumentNullException">The <paramref name="source"/> is a null reference (Nothing in Visual Basic).</exception>
/// <exception cref="FormatException">The <paramref name="source"/> data does not conform to the expected syndication content format. In this case, the document remains empty.</exception>
public static RsdDocument Create(Uri source, WebRequestOptions options, SyndicationResourceLoadSettings settings)
{
//------------------------------------------------------------
// Local members
//------------------------------------------------------------
RsdDocument syndicationResource = new RsdDocument();
//------------------------------------------------------------
// Validate parameters
//------------------------------------------------------------
Guard.ArgumentNotNull(source, "source");
//------------------------------------------------------------
// Create new instance using supplied parameters
//------------------------------------------------------------
syndicationResource.Load(source, options, settings);
return syndicationResource;
}
/// <summary>
/// Instantiates a <see cref="ISyndicationResource"/> that conforms to the specified <see cref="SyndicationContentFormat"/> using the supplied <see cref="Stream"/>.
/// </summary>
/// <param name="stream">The <see cref="Stream"/> used to load the syndication resource.</param>
/// <param name="format">A <see cref="SyndicationContentFormat"/> enumeration value that indicates the type syndication resource the <paramref name="stream"/> represents.</param>
/// <returns>
/// An <see cref="ISyndicationResource"/> object that conforms to the specified <paramref name="format"/>, initialized using the supplied <paramref name="stream"/>.
/// If the <paramref name="format"/> is not supported by the provider, returns a <b>null</b> reference.
/// </returns>
/// <exception cref="ArgumentNullException">The <paramref name="stream"/> is a null reference (Nothing in Visual Basic).</exception>
private static ISyndicationResource BuildResource(SyndicationContentFormat format, Stream stream)
{
//------------------------------------------------------------
// Validate parameters
//------------------------------------------------------------
Guard.ArgumentNotNull(stream, "stream");
//------------------------------------------------------------
// Create syndication resource based on content format
//------------------------------------------------------------
if (format == SyndicationContentFormat.Apml)
{
ApmlDocument document = new ApmlDocument();
document.Load(stream);
return document;
}
else if (format == SyndicationContentFormat.Atom)
{
XPathDocument document = new XPathDocument(stream);
XPathNavigator navigator = document.CreateNavigator();
navigator.MoveToRoot();
navigator.MoveToChild(XPathNodeType.Element);
if(String.Compare(navigator.LocalName, "entry", StringComparison.OrdinalIgnoreCase) == 0)
{
AtomEntry entry = new AtomEntry();
entry.Load(navigator);
return entry;
}
else if (String.Compare(navigator.LocalName, "feed", StringComparison.OrdinalIgnoreCase) == 0)
{
AtomFeed feed = new AtomFeed();
feed.Load(navigator);
return feed;
}
else
{
return null;
}
}
else if (format == SyndicationContentFormat.BlogML)
{
BlogMLDocument document = new BlogMLDocument();
document.Load(stream);
return document;
}
else if (format == SyndicationContentFormat.Opml)
{
OpmlDocument document = new OpmlDocument();
document.Load(stream);
return document;
}
else if (format == SyndicationContentFormat.Rsd)
{
RsdDocument document = new RsdDocument();
document.Load(stream);
return document;
}
else if (format == SyndicationContentFormat.Rss)
{
RssFeed feed = new RssFeed();
feed.Load(stream);
return feed;
}
else
{
return null;
}
}