/// <summary>
/// Parses the supplied XML into an instance of
/// <see cref="XmlAtomContent" />.
/// </summary>
/// <param name="xml">
/// A string of characters containing the XML representation of an Atom
/// Content element.
/// </param>
/// <param name="serializer">
/// The <see cref="IContentSerializer" /> used to deserialize the XML
/// into an instance of the correct object type.
/// </param>
/// <returns>
/// A new instance of <see cref="XmlAtomContent" /> containing the data
/// from the supplied <paramref name="xml" />.
/// </returns>
/// <exception cref="System.ArgumentNullException">
/// <paramref name="serializer" /> is <see langword="null" />.
/// </exception>
public static XmlAtomContent Parse(
string xml,
IContentSerializer serializer)
{
if (serializer == null)
{
throw new ArgumentNullException("serializer");
}
var sr = new StringReader(xml);
try
{
using (var r = XmlReader.Create(sr))
{
sr = null;
return(XmlAtomContent.ReadFrom(r, serializer));
}
}
finally
{
if (sr != null)
{
sr.Dispose();
}
}
}
/// <summary>
/// Creates an <see cref="AtomEntry" /> instance from XML.
/// </summary>
/// <param name="xmlReader">
/// The <see cref="XmlReader" /> containing the XML representation of
/// the Atom Entry.
/// </param>
/// <param name="serializer">
/// The <see cref="IContentSerializer" /> used to serialize custom XML
/// content.
/// </param>
/// <returns>
/// A new instance of <see cref="AtomEntry" /> containing the data from
/// the XML representation of the Atom Entry contained in
/// <paramref name="xmlReader" />.
/// </returns>
/// <exception cref="System.ArgumentNullException">
/// <paramref name="serializer" /> is <see langword="null" />.
/// </exception>
public static AtomEntry ReadFrom(
XmlReader xmlReader,
IContentSerializer serializer)
{
if (serializer == null)
{
throw new ArgumentNullException("serializer");
}
var navigator = new XPathDocument(xmlReader).CreateNavigator();
var resolver = new XmlNamespaceManager(new NameTable());
resolver.AddNamespace("atom", "http://www.w3.org/2005/Atom");
var id = navigator
.Select("/atom:entry/atom:id", resolver).Cast <XPathNavigator>()
.Single().Value;
var title = navigator
.Select("/atom:entry/atom:title[@type = 'text']", resolver).Cast <XPathNavigator>()
.Single().Value;
var published = navigator
.Select("/atom:entry/atom:published", resolver).Cast <XPathNavigator>()
.Single().Value;
var updated = navigator
.Select("/atom:entry/atom:updated", resolver).Cast <XPathNavigator>()
.Single().Value;
var author = navigator
.Select("/atom:entry/atom:author", resolver).Cast <XPathNavigator>()
.Single().ReadSubtree();
var content = navigator
.Select("/atom:entry/atom:content[@type = 'application/xml']", resolver).Cast <XPathNavigator>()
.Single().ReadSubtree();
var links = navigator
.Select("/atom:entry/atom:link", resolver).Cast <XPathNavigator>();
return(new AtomEntry(
UuidIri.Parse(id),
title,
DateTimeOffset.Parse(published, CultureInfo.InvariantCulture),
DateTimeOffset.Parse(updated, CultureInfo.InvariantCulture),
AtomAuthor.ReadFrom(author),
XmlAtomContent.ReadFrom(content, serializer),
links.Select(x => AtomLink.ReadFrom(x.ReadSubtree()))));
}
