/// <summary>
/// Parses the xml document in order to retrieve the RSS items.
/// </summary>
private List <Rss.Items> ParseRssItems(XmlDocument xmlDoc)
{
var rssItems = new List <Rss.Items>();
rssItems.Clear();
XmlNodeList nodes = xmlDoc.SelectNodes("rss/channel/item");
if (nodes != null)
{
foreach (XmlNode node in nodes)
{
var item = new Rss.Items();
ParseDocElements(node, "title", ref item.Title);
ParseDocElements(node, "description", ref item.Description);
ParseDocElements(node, "link", ref item.Link);
string date = null;
ParseDocElements(node, "pubDate", ref date);
DateTime.TryParse(date, out item.Date);
rssItems.Add(item);
}
}
return(rssItems);
}
private bool AcceptedByFilter(Rss.Items rssItem)
{
var filterDict = _currentUser.FilterDict;
if (filterDict.ContainsKey("exclude"))
{
var excludes = filterDict["exclude"].Split('|');
foreach (var exclude in excludes)
{
var excludeElems = exclude.Split('&');
bool isSet = excludeElems.All(elem => rssItem.Description.Contains(elem));
if (isSet)
{
return(false);
}
isSet = excludeElems.All(elem => rssItem.Title.Contains(elem));
if (isSet)
{
return(false);
}
}
}
if (filterDict.ContainsKey("include"))
{
var includes = filterDict["include"].Split('|');
foreach (var include in includes)
{
var includeElems = include.Split('&');
bool isSet = includeElems.All(elem => rssItem.Description.Contains(elem));
if (isSet)
{
return(true);
}
isSet = includeElems.All(elem => rssItem.Title.Contains(elem));
if (isSet)
{
return(true);
}
}
return(false);
}
return(true);
}
private void GetFilteredFeed()
{
while (!_isFinished || _unfilteredRssItems.Count != 0)
{
Rss.Items rssItem = null;
lock (readerLock)
{
if (_unfilteredRssItems.Count != 0)
{
rssItem = _unfilteredRssItems[0];
_unfilteredRssItems.RemoveAt(0);
}
}
if (rssItem != null && AcceptedByFilter(rssItem))
{
lock (filterLock)
{
_rssItems.Add(rssItem);
}
}
}
}
