//============================================================
// ICOMPARABLE IMPLEMENTATION
//============================================================
#region CompareTo(object obj)
/// <summary>
/// Compares the current instance with another object of the same type.
/// </summary>
/// <param name="obj">An object to compare with this instance.</param>
/// <returns>A 32-bit signed integer that indicates the relative order of the objects being compared.</returns>
/// <exception cref="ArgumentException">The <paramref name="obj"/> is not the expected <see cref="Type"/>.</exception>
public int CompareTo(object obj)
{
//------------------------------------------------------------
// If target is a null reference, instance is greater
//------------------------------------------------------------
if (obj == null)
{
return(1);
}
//------------------------------------------------------------
// Determine comparison result using property state of objects
//------------------------------------------------------------
AtomLink value = obj as AtomLink;
if (value != null)
{
int result = this.Length.CompareTo(value.Length);
result = result | String.Compare(this.ContentType, value.ContentType, StringComparison.OrdinalIgnoreCase);
result = result | String.Compare(this.Relation, value.Relation, StringComparison.OrdinalIgnoreCase);
string sourceLanguageName = this.ContentLanguage != null ? this.ContentLanguage.Name : String.Empty;
string targetLanguageName = value.ContentLanguage != null ? value.ContentLanguage.Name : String.Empty;
result = result | String.Compare(sourceLanguageName, targetLanguageName, StringComparison.OrdinalIgnoreCase);
result = result | String.Compare(this.Title, value.Title, StringComparison.OrdinalIgnoreCase);
result = result | Uri.Compare(this.Uri, value.Uri, UriComponents.AbsoluteUri, UriFormat.SafeUnescaped, StringComparison.OrdinalIgnoreCase);
result = result | AtomUtility.CompareCommonObjectAttributes(this, value);
return(result);
}
else
{
throw new ArgumentException(String.Format(null, "obj is not of type {0}, type was found to be '{1}'.", this.GetType().FullName, obj.GetType().FullName), "obj");
}
}
/// <summary>
/// Loads this <see cref="AtomSource"/> collection elements using the supplied <see cref="XPathNavigator"/>.
/// </summary>
/// <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>
/// <returns><b>true</b> if the <see cref="AtomSource"/> collection entities were initialized using the supplied <paramref name="source"/>, otherwise <b>false</b>.</returns>
/// <remarks>
/// This method expects the supplied <paramref name="source"/> to be positioned on the XML element that represents a <see cref="AtomSource"/>.
/// </remarks>
/// <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>
private bool LoadCollections(XPathNavigator source, XmlNamespaceManager manager)
{
//------------------------------------------------------------
// Local members
//------------------------------------------------------------
bool wasLoaded = false;
//------------------------------------------------------------
// Validate parameter
//------------------------------------------------------------
Guard.ArgumentNotNull(source, "source");
Guard.ArgumentNotNull(manager, "manager");
//------------------------------------------------------------
// Attempt to extract syndication information
//------------------------------------------------------------
XPathNodeIterator authorIterator = source.Select("atom:author", manager);
XPathNodeIterator contributorIterator = source.Select("atom:contributor", manager);
XPathNodeIterator categoryIterator = source.Select("atom:category", manager);
XPathNodeIterator linkIterator = source.Select("atom:link", manager);
if (authorIterator != null && authorIterator.Count > 0)
{
while (authorIterator.MoveNext())
{
AtomPersonConstruct author = new AtomPersonConstruct();
if (author.Load(authorIterator.Current))
{
this.Authors.Add(author);
wasLoaded = true;
}
}
}
if (categoryIterator != null && categoryIterator.Count > 0)
{
while (categoryIterator.MoveNext())
{
AtomCategory category = new AtomCategory();
if (category.Load(categoryIterator.Current))
{
this.Categories.Add(category);
wasLoaded = true;
}
}
}
if (contributorIterator != null && contributorIterator.Count > 0)
{
while (contributorIterator.MoveNext())
{
AtomPersonConstruct contributor = new AtomPersonConstruct();
if (contributor.Load(contributorIterator.Current))
{
this.Contributors.Add(contributor);
wasLoaded = true;
}
}
}
if (linkIterator != null && linkIterator.Count > 0)
{
while (linkIterator.MoveNext())
{
AtomLink link = new AtomLink();
if (link.Load(linkIterator.Current))
{
this.Links.Add(link);
wasLoaded = true;
}
}
}
return wasLoaded;
}
/// <summary>
/// Modifies the <see cref="AtomFeed"/> collection entities to match the supplied <see cref="XPathNavigator"/> data source.
/// </summary>
/// <param name="feed">The <see cref="AtomFeed"/> 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 a <see cref="AtomFeed"/>.
/// </remarks>
/// <exception cref="ArgumentNullException">The <paramref name="feed"/> 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 FillFeedCollections(AtomFeed feed, XPathNavigator source, XmlNamespaceManager manager, SyndicationResourceLoadSettings settings)
{
//------------------------------------------------------------
// Validate parameter
//------------------------------------------------------------
Guard.ArgumentNotNull(feed, "feed");
Guard.ArgumentNotNull(source, "source");
Guard.ArgumentNotNull(manager, "manager");
Guard.ArgumentNotNull(settings, "settings");
//------------------------------------------------------------
// Attempt to extract syndication information
//------------------------------------------------------------
XPathNodeIterator authorIterator = source.Select("atom:author", manager);
XPathNodeIterator categoryIterator = source.Select("atom:category", manager);
XPathNodeIterator contributorIterator = source.Select("atom:contributor", manager);
XPathNodeIterator linkIterator = source.Select("atom:link", manager);
XPathNodeIterator entryIterator = source.Select("atom:entry", manager);
if (authorIterator != null && authorIterator.Count > 0)
{
while (authorIterator.MoveNext())
{
AtomPersonConstruct author = new AtomPersonConstruct();
if (author.Load(authorIterator.Current, settings))
{
feed.Authors.Add(author);
}
}
}
if (categoryIterator != null && categoryIterator.Count > 0)
{
while (categoryIterator.MoveNext())
{
AtomCategory category = new AtomCategory();
if (category.Load(categoryIterator.Current, settings))
{
feed.Categories.Add(category);
}
}
}
if (contributorIterator != null && contributorIterator.Count > 0)
{
while (contributorIterator.MoveNext())
{
AtomPersonConstruct contributor = new AtomPersonConstruct();
if (contributor.Load(contributorIterator.Current, settings))
{
feed.Contributors.Add(contributor);
}
}
}
if (entryIterator != null && entryIterator.Count > 0)
{
int counter = 0;
while (entryIterator.MoveNext())
{
AtomEntry entry = new AtomEntry();
counter++;
Atom10SyndicationResourceAdapter.FillEntry(entry, entryIterator.Current, manager, settings);
if (settings.RetrievalLimit != 0 && counter > settings.RetrievalLimit)
{
break;
}
((Collection<AtomEntry>)feed.Entries).Add(entry);
}
}
if (linkIterator != null && linkIterator.Count > 0)
{
while (linkIterator.MoveNext())
{
AtomLink link = new AtomLink();
if (link.Load(linkIterator.Current, settings))
{
feed.Links.Add(link);
}
}
}
}
/// <summary>
/// Modifies the <see cref="AtomEntry"/> collection 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 a <see cref="AtomEntry"/>.
/// </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 FillEntryCollections(AtomEntry entry, XPathNavigator source, XmlNamespaceManager manager, SyndicationResourceLoadSettings settings)
{
//------------------------------------------------------------
// Validate parameter
//------------------------------------------------------------
Guard.ArgumentNotNull(entry, "entry");
Guard.ArgumentNotNull(source, "source");
Guard.ArgumentNotNull(manager, "manager");
Guard.ArgumentNotNull(settings, "settings");
//------------------------------------------------------------
// Attempt to extract syndication information
//------------------------------------------------------------
XPathNodeIterator authorIterator = source.Select("atom:author", manager);
XPathNodeIterator categoryIterator = source.Select("atom:category", manager);
XPathNodeIterator contributorIterator = source.Select("atom:contributor", manager);
XPathNodeIterator linkIterator = source.Select("atom:link", manager);
if (authorIterator != null && authorIterator.Count > 0)
{
while (authorIterator.MoveNext())
{
AtomPersonConstruct author = new AtomPersonConstruct();
if (author.Load(authorIterator.Current, settings))
{
entry.Authors.Add(author);
}
}
}
if (categoryIterator != null && categoryIterator.Count > 0)
{
while (categoryIterator.MoveNext())
{
AtomCategory category = new AtomCategory();
if (category.Load(categoryIterator.Current, settings))
{
entry.Categories.Add(category);
}
}
}
if (contributorIterator != null && contributorIterator.Count > 0)
{
while (contributorIterator.MoveNext())
{
AtomPersonConstruct contributor = new AtomPersonConstruct();
if (contributor.Load(contributorIterator.Current, settings))
{
entry.Contributors.Add(contributor);
}
}
}
if (linkIterator != null && linkIterator.Count > 0)
{
while (linkIterator.MoveNext())
{
AtomLink link = new AtomLink();
if (link.Load(linkIterator.Current, settings))
{
entry.Links.Add(link);
}
}
}
}