public Task StartAsync(CancellationToken cancellationToken)
{
var cfg = FeedSettings.GetInstance(Configuration);
isStopped = false;
aggregateTimer = new Timer(AggregateFeeds, cfg.AggregateInterval, TimeSpan.Zero, cfg.AggregatePeriod);
removeTimer = new Timer(RemoveFeeds, cfg.AggregateInterval, cfg.RemovePeriod, cfg.RemovePeriod);
return(Task.CompletedTask);
}
private void AggregateFeeds(object interval)
{
if (!Monitor.TryEnter(aggregateLock))
{
return;
}
try
{
var cfg = FeedSettings.GetInstance(Configuration);
using var scope = ServiceProvider.CreateScope();
var scopeClass = scope.ServiceProvider.GetService <FeedAggregatorServiceScope>();
var cache = scope.ServiceProvider.GetService <ICache>();
var(baseCommonLinkUtility, tenantManager, feedAggregateDataProvider, userManager, securityContext, authManager) = scopeClass;
baseCommonLinkUtility.Initialize(cfg.ServerRoot);
var start = DateTime.UtcNow;
Log.DebugFormat("Start of collecting feeds...");
var unreadUsers = new Dictionary <int, Dictionary <Guid, int> >();
var modules = scope.ServiceProvider.GetService <IEnumerable <IFeedModule> >();
foreach (var module in modules)
{
var result = new List <FeedRow>();
var fromTime = feedAggregateDataProvider.GetLastTimeAggregate(module.GetType().Name);
if (fromTime == default)
{
fromTime = DateTime.UtcNow.Subtract((TimeSpan)interval);
}
var toTime = DateTime.UtcNow;
var tenants = Attempt(10, () => module.GetTenantsWithFeeds(fromTime)).ToList();
Log.DebugFormat("Find {1} tenants for module {0}.", module.GetType().Name, tenants.Count());
foreach (var tenant in tenants)
{
// Warning! There is hack here!
// clearing the cache to get the correct acl
cache.Remove("acl" + tenant);
cache.Remove("/webitemsecurity/" + tenant);
//cache.Remove(string.Format("sub/{0}/{1}/{2}", tenant, "6045b68c-2c2e-42db-9e53-c272e814c4ad", NotifyConstants.Event_NewCommentForMessage.ID));
try
{
if (tenantManager.GetTenant(tenant) == null)
{
continue;
}
tenantManager.SetCurrentTenant(tenant);
var users = userManager.GetUsers();
var feeds = Attempt(10, () => module.GetFeeds(new FeedFilter(fromTime, toTime)
{
Tenant = tenant
}).Where(r => r.Item1 != null).ToList());
Log.DebugFormat("{0} feeds in {1} tenant.", feeds.Count, tenant);
var tenant1 = tenant;
var module1 = module;
var feedsRow = feeds
.Select(tuple => new Tuple <FeedRow, object>(new FeedRow(tuple.Item1)
{
Tenant = tenant1,
ProductId = module1.Product
}, tuple.Item2))
.ToList();
foreach (var u in users)
{
if (isStopped)
{
return;
}
if (!TryAuthenticate(securityContext, authManager, tenant1, u.ID))
{
continue;
}
module.VisibleFor(feedsRow, u.ID);
}
result.AddRange(feedsRow.Select(r => r.Item1));
}
catch (Exception ex)
{
Log.ErrorFormat("Tenant: {0}, {1}", tenant, ex);
}
}
feedAggregateDataProvider.SaveFeeds(result, module.GetType().Name, toTime);
foreach (var res in result)
{
foreach (var userGuid in res.Users.Where(userGuid => !userGuid.Equals(res.ModifiedById)))
{
if (!unreadUsers.TryGetValue(res.Tenant, out var dictionary))
{
dictionary = new Dictionary <Guid, int>();
}
if (dictionary.ContainsKey(userGuid))
{
++dictionary[userGuid];
}
else
{
dictionary.Add(userGuid, 1);
}
unreadUsers[res.Tenant] = dictionary;
}
}
}
SignalrServiceClient.SendUnreadUsers(unreadUsers);
Log.DebugFormat("Time of collecting news: {0}", DateTime.UtcNow - start);
}
catch (Exception ex)
{
Log.Error(ex);
}
finally
{
Monitor.Exit(aggregateLock);
}
}