public virtual void Publish( string notificationName, NotificationData data = null, EntityIdentifier entityIdentifier = null, NotificationSeverity severity = NotificationSeverity.Info, UserIdentifier[] userIds = null, UserIdentifier[] excludedUserIds = null, int?[] tenantIds = null) { if (notificationName.IsNullOrEmpty()) { throw new ArgumentException("NotificationName can not be null or whitespace!", nameof(notificationName)); } if (!tenantIds.IsNullOrEmpty() && !userIds.IsNullOrEmpty()) { throw new ArgumentException("tenantIds can be set only if userIds is not set!", nameof(tenantIds)); } if (tenantIds.IsNullOrEmpty() && userIds.IsNullOrEmpty()) { tenantIds = new[] { AbpSession.TenantId }; } var notificationInfo = new NotificationInfo(_guidGenerator.Create()) { NotificationName = notificationName, EntityTypeName = entityIdentifier?.Type.FullName, EntityTypeAssemblyQualifiedName = entityIdentifier?.Type.AssemblyQualifiedName, EntityId = entityIdentifier?.Id.ToJsonString(), Severity = severity, UserIds = userIds.IsNullOrEmpty() ? null : userIds.Select(uid => uid.ToUserIdentifierString()).JoinAsString(","), ExcludedUserIds = excludedUserIds.IsNullOrEmpty() ? null : excludedUserIds.Select(uid => uid.ToUserIdentifierString()).JoinAsString(","), TenantIds = GetTenantIdsAsStr(tenantIds), Data = data?.ToJsonString(), DataTypeName = data?.GetType().AssemblyQualifiedName }; _store.InsertNotification(notificationInfo); CurrentUnitOfWork.SaveChanges(); //To get Id of the notification if (userIds != null && userIds.Length <= MaxUserCountToDirectlyDistributeANotification) { //We can directly distribute the notification since there are not much receivers _notificationDistributer.Distribute(notificationInfo.Id); } else { //We enqueue a background job since distributing may get a long time _backgroundJobManager.Enqueue <NotificationDistributionJob, NotificationDistributionJobArgs>( new NotificationDistributionJobArgs( notificationInfo.Id ) ); } }