/// <summary>
/// Modifies the <see cref="AtomEntry"/> optional entities to match the supplied <see cref="XPathNavigator"/> data source.
/// </summary>
/// <param name="entry">The <see cref="AtomEntry"/> to be filled.</param>
/// <param name="source">The <see cref="XPathNavigator"/> to extract information from.</param>
/// <param name="manager">The <see cref="XmlNamespaceManager"/> used to resolve XML namespace prefixes.</param>
/// <param name="settings">The <see cref="SyndicationResourceLoadSettings"/> used to configure the fill operation.</param>
/// <remarks>
/// This method expects the supplied <paramref name="source"/> to be positioned on the XML element that represents an Atom 0.3 element.
/// </remarks>
/// <exception cref="ArgumentNullException">The <paramref name="entry"/> is a null reference (Nothing in Visual Basic).</exception>
/// <exception cref="ArgumentNullException">The <paramref name="source"/> is a null reference (Nothing in Visual Basic).</exception>
/// <exception cref="ArgumentNullException">The <paramref name="manager"/> is a null reference (Nothing in Visual Basic).</exception>
/// <exception cref="ArgumentNullException">The <paramref name="settings"/> is a null reference (Nothing in Visual Basic).</exception>
private static void FillEntryOptionals(AtomEntry entry, XPathNavigator source, XmlNamespaceManager manager, SyndicationResourceLoadSettings settings)
{
Guard.ArgumentNotNull(entry, "entry");
Guard.ArgumentNotNull(source, "source");
Guard.ArgumentNotNull(manager, "manager");
Guard.ArgumentNotNull(settings, "settings");
XPathNavigator contentNavigator = source.SelectSingleNode("atom:content", manager);
XPathNavigator createdNavigator = source.SelectSingleNode("atom:created", manager);
XPathNavigator summaryNavigator = source.SelectSingleNode("atom:summary", manager);
if (contentNavigator != null)
{
entry.Content = Atom03SyndicationResourceAdapter.CreateContent(contentNavigator, manager, settings);
}
if (createdNavigator != null)
{
DateTime publishedOn;
if (SyndicationDateTimeUtility.TryParseRfc3339DateTime(createdNavigator.Value, out publishedOn))
{
entry.PublishedOn = publishedOn;
}
}
if (summaryNavigator != null)
{
entry.Summary = Atom03SyndicationResourceAdapter.CreateTextContent(summaryNavigator, manager, settings);
}
}
