//============================================================
// 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
//------------------------------------------------------------
RssTextInput value = obj as RssTextInput;
if (value != null)
{
int result = String.Compare(this.Description, value.Description, StringComparison.OrdinalIgnoreCase);
result = result | Uri.Compare(this.Link, value.Link, UriComponents.AbsoluteUri, UriFormat.SafeUnescaped, StringComparison.OrdinalIgnoreCase);
result = result | String.Compare(this.Name, value.Name, StringComparison.OrdinalIgnoreCase);
result = result | String.Compare(this.Title, value.Title, StringComparison.OrdinalIgnoreCase);
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>
/// 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 (obj == null)
{
return(1);
}
RssTextInput value = obj as RssTextInput;
if (value != null)
{
int result = String.Compare(this.Description, value.Description, StringComparison.OrdinalIgnoreCase);
result = result | Uri.Compare(this.Link, value.Link, UriComponents.AbsoluteUri, UriFormat.SafeUnescaped, StringComparison.OrdinalIgnoreCase);
result = result | String.Compare(this.Name, value.Name, StringComparison.OrdinalIgnoreCase);
result = result | String.Compare(this.Title, value.Title, StringComparison.OrdinalIgnoreCase);
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 the optional elements of this <see cref="RssChannel"/> 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 namespace prefixes.</param>
/// <param name="settings">The <see cref="SyndicationResourceLoadSettings"/> used to configure the load operation.</param>
/// <returns><b>true</b> if the <see cref="RssChannel"/> was 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="RssChannel"/>.
/// </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 LoadOptionals(XPathNavigator source, XmlNamespaceManager manager, SyndicationResourceLoadSettings settings)
{
//------------------------------------------------------------
// Local members
//------------------------------------------------------------
bool wasLoaded = false;
//------------------------------------------------------------
// Validate parameter
//------------------------------------------------------------
Guard.ArgumentNotNull(source, "source");
Guard.ArgumentNotNull(manager, "manager");
Guard.ArgumentNotNull(settings, "settings");
//------------------------------------------------------------
// Attempt to extract syndication information
//------------------------------------------------------------
XPathNavigator cloudNavigator = source.SelectSingleNode("cloud", manager);
XPathNavigator copyrightNavigator = source.SelectSingleNode("copyright", manager);
XPathNavigator generatorNavigator = source.SelectSingleNode("generator", manager);
XPathNavigator imageNavigator = source.SelectSingleNode("image", manager);
XPathNavigator languageNavigator = source.SelectSingleNode("language", manager);
XPathNavigator lastBuildDateNavigator = source.SelectSingleNode("lastBuildDate", manager);
XPathNavigator managingEditorNavigator = source.SelectSingleNode("managingEditor", manager);
XPathNavigator publicationNavigator = source.SelectSingleNode("pubDate", manager);
XPathNavigator ratingNavigator = source.SelectSingleNode("rating", manager);
XPathNavigator textInputNavigator = source.SelectSingleNode("textInput", manager);
XPathNavigator timeToLiveNavigator = source.SelectSingleNode("ttl", manager);
XPathNavigator webMasterNavigator = source.SelectSingleNode("webMaster", manager);
if (cloudNavigator != null)
{
RssCloud cloud = new RssCloud();
if (cloud.Load(cloudNavigator, settings))
{
this.Cloud = cloud;
wasLoaded = true;
}
}
if (copyrightNavigator != null)
{
this.Copyright = copyrightNavigator.Value;
wasLoaded = true;
}
if (generatorNavigator != null)
{
this.Generator = generatorNavigator.Value;
wasLoaded = true;
}
if (imageNavigator != null)
{
RssImage image = new RssImage();
if (image.Load(imageNavigator, settings))
{
this.Image = image;
wasLoaded = true;
}
}
if (languageNavigator != null && !String.IsNullOrEmpty(languageNavigator.Value))
{
try
{
CultureInfo language = new CultureInfo(languageNavigator.Value);
this.Language = language;
wasLoaded = true;
}
catch (ArgumentException)
{
System.Diagnostics.Trace.TraceWarning("RssChannel unable to determine CultureInfo with a name of {0}.", languageNavigator.Value);
}
}
if (lastBuildDateNavigator != null)
{
DateTime lastBuildDate;
if (SyndicationDateTimeUtility.TryParseRfc822DateTime(lastBuildDateNavigator.Value, out lastBuildDate))
{
this.LastBuildDate = lastBuildDate;
wasLoaded = true;
}
}
if (managingEditorNavigator != null)
{
this.ManagingEditor = managingEditorNavigator.Value;
wasLoaded = true;
}
if (publicationNavigator != null)
{
DateTime publicationDate;
if (SyndicationDateTimeUtility.TryParseRfc822DateTime(publicationNavigator.Value, out publicationDate))
{
this.PublicationDate = publicationDate;
wasLoaded = true;
}
}
if (ratingNavigator != null)
{
this.Rating = ratingNavigator.Value;
wasLoaded = true;
}
if (textInputNavigator != null)
{
RssTextInput textInput = new RssTextInput();
if (textInput.Load(textInputNavigator, settings))
{
this.TextInput = textInput;
wasLoaded = true;
}
}
if (timeToLiveNavigator != null)
{
int timeToLive;
if (Int32.TryParse(timeToLiveNavigator.Value, NumberStyles.Integer, NumberFormatInfo.InvariantInfo, out timeToLive))
{
this.TimeToLive = timeToLive;
wasLoaded = true;
}
}
if (webMasterNavigator != null)
{
this.Webmaster = webMasterNavigator.Value;
wasLoaded = true;
}
return wasLoaded;
}
/// <summary>
/// Initializes the supplied <see cref="RssTextInput"/> using the specified <see cref="XPathNavigator"/> and <see cref="XmlNamespaceManager"/>.
/// </summary>
/// <param name="textInput">The <see cref="RssTextInput"/> to be filled.</param>
/// <param name="navigator">The <see cref="XPathNavigator"/> used to navigate the text input XML data.</param>
/// <param name="manager">The <see cref="XmlNamespaceManager"/> used to resolve XML namespace prefixes.</param>
/// <param name="settings">The <see cref="SyndicationResourceLoadSettings"/> object used to configure the load operation.</param>
/// <exception cref="ArgumentNullException">The <paramref name="textInput"/> is a null reference (Nothing in Visual Basic).</exception>
/// <exception cref="ArgumentNullException">The <paramref name="navigator"/> 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 FillTextInput(RssTextInput textInput, XPathNavigator navigator, XmlNamespaceManager manager, SyndicationResourceLoadSettings settings)
{
//------------------------------------------------------------
// Validate parameters
//------------------------------------------------------------
Guard.ArgumentNotNull(textInput, "textInput");
Guard.ArgumentNotNull(navigator, "navigator");
Guard.ArgumentNotNull(manager, "manager");
Guard.ArgumentNotNull(settings, "settings");
//------------------------------------------------------------
// Attempt to extract text input information
//------------------------------------------------------------
XPathNavigator descriptionNavigator = navigator.SelectSingleNode("description", manager);
XPathNavigator linkNavigator = navigator.SelectSingleNode("link", manager);
XPathNavigator nameNavigator = navigator.SelectSingleNode("name", manager);
XPathNavigator titleNavigator = navigator.SelectSingleNode("title", manager);
if (descriptionNavigator != null)
{
if (!String.IsNullOrEmpty(descriptionNavigator.Value))
{
textInput.Description = descriptionNavigator.Value;
}
}
if (linkNavigator != null)
{
Uri link;
if (Uri.TryCreate(linkNavigator.Value, UriKind.RelativeOrAbsolute, out link))
{
textInput.Link = link;
}
}
if (nameNavigator != null)
{
if (!String.IsNullOrEmpty(nameNavigator.Value))
{
textInput.Name = nameNavigator.Value;
}
}
if (titleNavigator != null)
{
if (!String.IsNullOrEmpty(titleNavigator.Value))
{
textInput.Title = titleNavigator.Value;
}
}
SyndicationExtensionAdapter adapter = new SyndicationExtensionAdapter(navigator, settings);
adapter.Fill(textInput);
}
