public void Publish(Type messageType, EventBusMessage message)
{
_eventBusConnection.EnsureConnection();
var eventName = _manager.GetEventName(messageType);
_logger.LogTrace($"Creating RabbitMQ channel to publish event: {message.MessageId} ({eventName})");
using (var channel = _eventBusConnection.CreateModel())
{
_logger.LogTrace($"Declaring RabbitMQ exchange to publish event: {message.MessageId}");
var messageJson = JsonConvert.SerializeObject(message);
var body = Encoding.UTF8.GetBytes(messageJson);
createRetryPolicy(eventName, message.MessageId).Execute(() =>
{
var properties = channel.CreateBasicProperties();
properties.DeliveryMode = 2; // persistent
_logger.LogTrace($"Publishing event to RabbitMQ: {message.MessageId}");
channel.BasicPublish(
exchange: _exchangeName,
eventName,
mandatory: true,
basicProperties: properties,
body: body);
});
}
}
public EventLog(EventBusMessage message)
{
AssemblyName = message.GetType().Assembly.GetName().Name;
TypeName = message.GetType().FullName;
var json = JsonConvert.SerializeObject(message);
Content = Encoding.UTF8.GetBytes(json);
DateTimeCreation = DateTime.Now;
}
public async Task SaveEventLogAsync(EventBusMessage message, IDbContextTransaction transaction, CancellationToken cancellationToken = default(CancellationToken))
{
if (_eventSourcingDbContext.Database.CurrentTransaction == null ||
_eventSourcingDbContext.Database.CurrentTransaction.GetDbTransaction() != transaction.GetDbTransaction())
{
_eventSourcingDbContext.Database.UseTransaction(transaction.GetDbTransaction());
}
_eventSourcingDbContext.EventLogs.Add(new EventLog(message));
await _eventSourcingDbContext.SaveChangesAsync(cancellationToken);
}
public virtual Task OnMessage(EventBusMessage message, string[] exceptionMessageStackForFailSubscription = null)
{
return(_onMessage(new EventBusSubscriptionContext(this, exceptionMessageStackForFailSubscription), message));
}
public async Task AddToDbContext(EventBusMessage message, CancellationToken cancellationToken = default(CancellationToken))
{
await _dbContext.AddAsync(new EventLog(message));
}
