public Task<IEnumerable<NewsItem>> GetSyndicationItems(ISyndicationSearchFields syndicationSearchFields)
{
var tcs = new TaskCompletionSource<IEnumerable<NewsItem>>();
try
{
using(var reader = XmlReader.Create(syndicationSearchFields.Url.Replace("%26", "&")))
{
var feed = SyndicationFeed.Load(reader);
var items = feed.Items.ToArray();
var newsitems = new List<NewsItem>();
for (int i = 0; i < items.Count(); i++)
{
if(i == syndicationSearchFields.Take)
break;
newsitems.Add(new NewsItem
{
Type = syndicationSearchFields.Type,
Title = items[i].Title.Text,
Url = items[i].Summary.Text.GetItemUrlFromPost(),
PublishDate = items[i].PublishDate.DateTime
});
}
reader.Close();
tcs.TrySetResult(newsitems);
}
}
catch (Exception ex)
{
tcs.TrySetException(ex);
}
if (tcs.Task.Exception != null)
{
throw tcs.Task.Exception;
}
return tcs.Task;
}
public async Task LoadNewsItems(ISyndicationSearchFields syndicationSearchFields)
{
var newsItems = await _syndicationService.GetSyndicationItems(syndicationSearchFields).ConfigureAwait(false);
_newsRepository.InsertMany(newsItems);
}
public async Task<IEnumerable<NewsItem>> GetOrAddNewsItems(ISyndicationSearchFields syndicationSearchFields)
{
await LoadNewsItems(syndicationSearchFields).ConfigureAwait(false);
return _newsRepository.SearchFor(n => n.Type == syndicationSearchFields.Type);
}
