private void RefreshFeed()
{
if (sources.Count > 0)
{
IEnumerable<FeedItem> newFeed = null;
string[] sourcesCopy;
lock (syncRoot)
{
sourcesCopy = sources.ToArray();
}
foreach (var source in sources)
{
if (newFeed == null)
newFeed = GetFeed(source);
else
newFeed = newFeed.Concat(GetFeed(source));
}
lock (syncRoot)
{
feed = newFeed.ToList();
feed.SortByPublishDate();
}
}
lock (syncRoot)
{
lastUpdated = DateTime.Now;
}
FeedRefreshed?.Invoke(this, new EventArgs());
bool filterSet;
lock (syncRoot)
{
filterSet = filterSources != null && filterSources.Length > 0;
}
if (filterSet)
Task.Factory.StartNew(FilterBySource);
else
FilteredFeedRefreshed?.Invoke(this, new EventArgs());
}
public void AddSource(string source)
{
IEnumerable<FeedItem> newFeed;
try
{
newFeed = GetFeed(source);
}
catch (Exception e)
{
throw new Exception("Unable to add source: " + e.Message, e);
}
lock (syncRoot)
{
sources.Add(source);
feed = feed.Concat(newFeed).ToList();
feed.SortByPublishDate();
}
}
