private void OnConnectionShutdown(object sender, ShutdownEventArgs shutdownEventArgs)
{
try
{
// Check if shutdown code is known in our managed shut down code .
// If yes check if they no more connected connector to really shut down the connection
// Reminder all connectors in the same process share the connection on Rabbit mq
// Connection object is thread safe.
if (CloseCodeReasonDictionary.ContainsKey(shutdownEventArgs.ReplyCode) &&
RegisteredConnectors.Count == 0)
{
return;
}
_logger.LogWarning($"Disconnect for bad reason id: {shutdownEventArgs.ReplyCode} - Text: {shutdownEventArgs.ReplyText} - Initiator: {shutdownEventArgs.Initiator}");
_connection = null;
_factory = null;
RegisteredConnectors.Clear();
// If the shutdown reason is unknown (ei: send message connector try
// to send a message on a missing exchange) we recreate the shared connection
CreateConnection(_configuration);
}
catch (Exception e)
{
_logger.LogError(e.Message);
}
}
public IModel CreateChannel(IMessageConnector connector)
{
IModel channel = _connection.CreateModel();
channel.ModelShutdown += (sender, args) =>
{
_logger.LogInformation($"Channel shutdown for connector Id: {connector.Id} - type {connector.GetType().Name} - reason id: {args.ReplyCode} - Text: {args.ReplyText} - Initiator: {args.Initiator}");
RegisteredConnectors.TryRemove(connector.Id, out _);
};
RegisterConnector(connector, channel);
return(channel);
}
internal IModel GetAssociatedChannel(IMessageConnector connector)
{
IModel channel = null;
if (IsConnect && RegisteredConnectors.TryGetValue(connector.Id, out channel))
{
if (channel == null || channel.IsOpen)
{
RegisteredConnectors.TryRemove(connector.Id, out _);
}
}
return(channel);
}
private void CreateConnection(BrokerConfiguration configuration)
{
try
{
if (!IsConnect)
{
if (_factory == null)
{
_factory = new ConnectionFactory
{
HostName = configuration.HostName,
Port = configuration.Port,
UserName = configuration.UserName,
Password = configuration.Password,
VirtualHost = configuration.Vhost,
};
#if DEBUG
// Force to use Ipv4 instead of trying ipv6 and try catch exception in his code.
_factory.SocketFactory = family => ConnectionFactory.DefaultSocketFactory(AddressFamily.InterNetwork);
#endif
}
RegisteredConnectors.Clear();
_connection = _factory.CreateConnection($"{Environment.MachineName}:{Environment.UserName}");
_logger.LogInformation($"Connected on broker {_factory.HostName} - vHost: {_factory.VirtualHost}");
using (IModel channel = _connection.CreateModel())
{
CreateDeadLetter(channel);
}
_connection.ConnectionShutdown += OnConnectionShutdown;
_configuration = configuration;
}
if (IsConnect)
{
OnConnect?.Invoke(this, EventArgs.Empty);
}
}
catch (Exception e)
{
_logger.LogError(e, "Connection failed.");
}
}
