/// <summary>
/// Initialisiert eine neue Instanz der RSSFeed Klasse.
/// Allen Eigenschaften wird ein Standartwert zugewiesen.
/// </summary>
public RSSFeed()
{
Description = "";
Image = new RSSFeedImage();
ImageDescription = "";
Categories = new List <RSSFeedCategory>();
Docs = "";
Updated = DateTime.MinValue;
SkipDays = new List <string>();
SkipHours = new List <byte>();
TimeToLive = int.MinValue;
WebMaster = "";
TextInput = new RSSFeedTextInput();
ArticleUrl = "";
Title = "";
Generator = "";
Version = "2.0";
Author = "";
}
/// <summary>
/// Lädt die Daten aus dem XDocument (im RSS Format) in die Eigenschaften dieser Instanz.
/// </summary>
/// <param name="doc">Das zu ladende RSS Dokument.</param>
private void SetDataFromDocument(XDocument doc)
{
XElement el = doc.Descendants("rss").Count() == 1
? doc.Descendants("rss").Descendants("channel").Count() == 1
? doc.Descendants("rss").Descendants("channel").Single()
: null
: null;
if (el == null)
{
throw new InvalidCastException("Invalid RSS file");
}
//version="x.y"
Version = doc.Descendants("rss").Attributes("version").Count() == 1 ? doc.Descendants("rss").Attributes("version").Single().Value : "2.0";
//<category>...</categorie>
Categories = (from c in el.Elements("category")
select new RSSFeedCategory()
{
CategoryName = c.Value,
Domain = c.Attributes("domain").Count() == 1 ? c.Attributes("domain").Single().Value : "",
}).ToList();
//<skypedays>...</skipdays>
SkipDays = (from c in el.Elements("skipDays").Elements("day")
select c.Value).ToList();
//<skypehours>...</skypehours>
SkipHours = (from c in el.Elements("skipHours").Elements("hour")
select byte.Parse(c.Value)).ToList();
//<link>test.htm</link>
if (el.Elements("link").Count() != 1)
{
throw new InvalidCastException("Invalid RSS file");
}
ArticleUrl = el.Elements("link").Count() == 1 ? el.Elements("link").Single().Value : "";
//<docs>rss.htm</docs>
Docs = el.Elements("docs").Count() == 1 ? el.Elements("docs").Single().Value : "";
//<webMaster>rss.htm</webMaster>
WebMaster = el.Elements("webMaster").Count() == 1 ? el.Elements("webMaster").Single().Value : "";
//<title>Title</title>
if (el.Elements("title").Count() != 1)
{
throw new InvalidCastException("Invalid RSS file");
}
Title = el.Elements("title").Count() == 1 ? el.Elements("title").Single().Value : "";
//<description>Kurze Beschreibung</description>
Description = el.Elements("description").Count() == 1 ? el.Elements("description").Single().Value : "";
//<copyright>Copright</copyright>
Copyrights = el.Elements("copyright").Count() == 1 ? el.Elements("copyright").Single().Value : "";
//<pubDate>Sat, 20 Oct 2012 11:43:20 GMT</pubDate>
Published = el.Elements("pubDate").Count() == 1 ? DateTime.Parse(el.Elements("pubDate").Single().Value) : DateTime.MinValue;
//<ttl>60</ttl>
TimeToLive = el.Elements("ttl").Count() == 1 ? int.Parse(el.Elements("ttl").Single().Value) : int.MinValue;
//<pubDate>Sat, 20 Oct 2012 11:43:20 GMT</pubDate>
Updated = el.Elements("lastBuildDate").Count() == 1 ? DateTime.Parse(el.Elements("lastBuildDate").Single().Value) : DateTime.MinValue;
//<generator>Koopakiller.NewsFeed Classes</generator>
Generator = el.Elements("generator").Count() == 1 ? el.Elements("generator").Single().Value : "";
//<managingEditor>Autor</managingEditor>
Author = el.Elements("managingEditor").Count() == 1 ? el.Elements("managingEditor").Single().Value : "";
//<image>...</image>
if (el.Elements("image").Count() == 1)
{
//<url>http://koopakiller.ko.ohost.de/images/bg.png</url>
Image.Url = el.Elements("image").Descendants("url").Count() == 1 ? el.Elements("image").Descendants("url").Single().Value : "";
//<title>Title</title>
Image.Title = el.Elements("image").Descendants("title").Count() == 1 ? el.Elements("image").Descendants("title").Single().Value : "";
//<link>test.htm</link>
Image.Link = el.Elements("image").Descendants("link").Count() == 1 ? el.Elements("image").Descendants("link").Single().Value : "";
//<height>90</height>
Image.Height = el.Elements("image").Descendants("height").Count() == 1 ? int.Parse(el.Elements("image").Descendants("height").Single().Value) : 31;
//<width>90</width>
Image.Width = el.Elements("image").Descendants("width").Count() == 1 ? int.Parse(el.Elements("image").Descendants("width").Single().Value) : 88;
//<description>Beschreibung...</description>
ImageDescription = el.Elements("image").Descendants("description").Count() == 1 ? el.Elements("image").Descendants("description").Single().Value : "";
}
//<textinput>...</textinput>
if (el.Elements("textinput").Count() == 1)
{
TextInput = new RSSFeedTextInput();
//<description>Beschreibung</description>
TextInput.Description = el.Elements("textinput").Descendants("description").Count() == 1 ? el.Elements("textinput").Descendants("description").Single().Value : "";
//<name>...</name>
TextInput.Name = el.Elements("textinput").Descendants("name").Count() == 1 ? el.Elements("textinput").Descendants("name").Single().Value : "";
//<link>...</link>
TextInput.Link = el.Elements("textinput").Descendants("link").Count() == 1 ? el.Elements("textinput").Descendants("link").Single().Value : "";
//<title>test.htm</title>
TextInput.Title = el.Elements("textinput").Descendants("title").Count() == 1 ? el.Elements("textinput").Descendants("title").Single().Value : "";
}
//<language>de-de</language>
Language = el.Elements("language").Count() == 1 ? CultureInfo.CreateSpecificCulture(el.Elements("language").Single().Value) : CultureInfo.InvariantCulture;
//<item>...</item>
Articles = (from x in el.Elements("item")
select(FeedArticleBase) new RSSFeedArticle()
{
Categories = (from c in x.Elements("catagory")
select new RSSFeedCategory()
{
CategoryName = c.Value,
Domain = c.Attributes("domain").Count() == 1 ? c.Attributes("domain").Single().Value : "",
}).ToList(),
ArticleUrl = x.Elements("link").Count() == 1 ? x.Elements("link").Single().Value : "",
Author = x.Elements("author").Count() == 1 ? x.Elements("author").Single().Value : "",
Content = x.Elements("description").Count() == 1 ? x.Elements("description").Single().Value : "",
Title = x.Elements("title").Count() == 1 ? x.Elements("title").Single().Value : "",
Guid = new RSSFeedArticleGuid()
{
Guid = x.Elements("guid").Count() == 1 ? x.Elements("guid").Single().Value : "",
IsPermaLink = x.Elements("link").Count() == 1 ? x.Elements("link").Attributes("isPermaLink").Count() == 1 ? bool.Parse(x.Elements("link").Attributes("isPermaLink").Single().Value) : false : false,
},
Comments = x.Elements("comments").Count() == 1 ? x.Elements("comments").Single().Value : "",
Published = x.Elements("pubDate").Count() == 1 ? DateTime.Parse(x.Elements("pubDate").Single().Value) : DateTime.MinValue,
Enclosure = new RSSFeedArticleEnclosure()
{
Url = x.Elements("enclosure").Count() == 1 ? x.Elements("enclosure").Attributes("url").Count() == 1 ? x.Elements("enclosure").Attributes("url").Single().Value : "" : "",
Type = x.Elements("enclosure").Count() == 1 ? x.Elements("enclosure").Attributes("type").Count() == 1 ? x.Elements("enclosure").Attributes("type").Single().Value : "" : "",
Length = x.Elements("enclosure").Count() == 1 ? x.Elements("enclosure").Attributes("length").Count() == 1 ? ulong.Parse(x.Elements("enclosure").Attributes("length").Single().Value) : ulong.MinValue : ulong.MinValue,
},
Source = new RSSFeedArticleSource()
{
Source = x.Elements("source").Count() == 1 ? x.Elements("source").Single().Value : "",
Uri = x.Elements("source").Count() == 1 ? x.Elements("source").Attributes("url").Count() == 1 ? x.Elements("source").Attributes("url").Single().Value : "" : "",
},
}).ToList();
}