override public async Task ReadFeeds(ClientInfo request, IServerStreamWriter <FeedInfo> responseStream,
ServerCallContext context)
{
try
{
var client = await _locker.LockAsync(async() =>
await _rssManager.GetClient(request.ClientId));
if (client != null)
{
//reset when client connected, save just for online time
//0 because client does not store feeds now
//force refresh
UpdateLastLoadedSafe(request.ClientId, 0);
//continuous wait for some new aggregation
while (true)
{
//sorted by date descending
var rsses = await _locker.LockAsync(async() =>
await _rssManager.RssForClient(client.ClientId,
lastLoadedRss.Keys.Contains(client.ClientId) ? lastLoadedRss[client.ClientId] : 0,
DateTime.Now.AddDays(-2))
);
if (rsses.Count > 0)
{
LogInformationSafe("Transferring " + rsses.Count + " feeds to client " + client.ClientId);
UpdateLastLoadedSafe(request.ClientId, rsses.Max(r => r.RssId));
foreach (var rss in rsses)
{
var fi = new FeedInfo()
{
FeedXml = rss.FeedXml
};
foreach (var tag in rss.RssToTags)
{
fi.Tags.Add(tag.Tag.TagName);
}
Thread.Sleep(50);
await responseStream.WriteAsync(fi);
}
LogInformationSafe("All feeds have been transferred to " + client.ClientId);
}
//sleep 20 sec
Thread.Sleep(1000 * 20);
}
}
}
catch (Exception ex)
{
_logger.LogWarning("Client RSS sender: " + ex.ToString());
}
context.Status = Status.DefaultCancelled;
}
