private async void ReadFeedsBackground()
{
await Task.Run(async() =>
{
try
{
lock ("activation")
{
if (isReaderActive)
{
return;
}
isReaderActive = true;
}
LogInformationSafe("Background RSS reader: Start reading RSS sources");
foreach (var feed in feeds)
{
WebClient webClient = new WebClient();
var xml = webClient.DownloadString(feed);
XDocument doc = XDocument.Parse(xml);
Dictionary <string, (RepeatedField <string>, string)> send =
new Dictionary <string, (RepeatedField <string>, string)>();
var items = from xe in doc
.Element("rss")
.Element("channel")
.Elements("item")
where xe
.Elements("category")
.Count() > 0
select xe;
foreach (var item in items)
{
string k = item.Element("guid").Value;
//lock db usage
await _locker.LockAsync(async() =>
{
if (!await _rssManager.HasRss(k))
{
string ds = item.Element("pubDate").Value;
DateTime pubDate;
if (!DateTime.TryParse(ds,
CultureInfo.InvariantCulture,
DateTimeStyles.None,
out pubDate))
{
pubDate = DateTime.Now;
}
var tags = item.Elements("category");
var rssId = await _rssManager.CreateRss(k, item.ToString(), pubDate);
foreach (var tag in tags)
{
await _rssManager.RssAddTag(rssId, tag.Value);
}
}
});
}
}
Thread.Sleep(1000 * 300);
}
catch (Exception ex)
{
_logger.LogError("Background RSS reader: " + ex.ToString());
Thread.Sleep(10000);
}
});
lock ("activation")
{
isReaderActive = false;
}
//restart
ReadFeedsBackground();
}
