private async Task Initialize()
{
if (_initialized)
{
return;
}
for (int i = 0; i < 5; i++)
{
try
{
var optionsBuilder = new DbContextOptionsBuilder <WoodchuckDbContext>();
optionsBuilder.UseNpgsql(_woodchuck);
using (var context = new WoodchuckDbContext(optionsBuilder.Options))
{
_config = context.WorkerSettings.ToDictionary(x => x.Key, x => x.Value);
}
_initialized = true;
break;
}
catch (Exception)
{
if (i >= 4)
{
throw;
}
await Task.Delay(10000);
}
}
}
private async Task Consumer_Received(object sender, BasicDeliverEventArgs @event)
{
_logger.LogInformation("[Worker] Worker processing message at {0}", DateTime.Now);
var optionsBuilder = new DbContextOptionsBuilder <WoodchuckDbContext>();
optionsBuilder.UseNpgsql(_woodchuck);
using (var context = new WoodchuckDbContext(optionsBuilder.Options))
{
var photographer = new Photographer(
context.CameraSettings.ToList <CameraSettings>());
var photos = await photographer.GetPhotos();
var scribe = new Scribe(
_config["Storage_Uri"]);
var recordedPhotos = await scribe.SaveStreams(photos);
var messenger = new Messenger(
_config["Twilio_User"],
_config["Twilio_Password"],
_config["Twilio_Telephone"],
context.NotificationSettings.Where(
x => x.Enabled == true).
ToList <NotificationSettings>());
messenger.SendMessage("Doorbell alert!", recordedPhotos);
}
}
public QueueService(ILogger <QueueService> logger, WoodchuckDbContext context)
{
_logger = logger;
_hostName = (from setting in context.MonitorSettings
where setting.Key == "RabbitMQ-HostName"
select setting.Value).FirstOrDefault();
_exchangeName = (from setting in context.MonitorSettings
where setting.Key == "RabbitMQ-ExchangeName"
select setting.Value).FirstOrDefault();
_queueName = (from setting in context.MonitorSettings
where setting.Key == "RabbitMQ-QueueName"
select setting.Value).FirstOrDefault();
_routingKey = (from setting in context.MonitorSettings
where setting.Key == "RabbitMQ-RoutingKey"
select setting.Value).FirstOrDefault();
}
