RawRabbit.Channel.ChannelFactory.GetConnectionAsync C# (CSharp) Method

		private Task<IConnection> GetConnectionAsync()
		{
			if (_connection == null)
			{
				_logger.LogDebug($"Creating a new connection for {_config.Hostnames.Count} hosts.");
				_connection = _connectionFactory.CreateConnection(_config.Hostnames);
			}
			if (_connection.IsOpen)
			{
				_logger.LogDebug("Existing connection is open and will be used.");
				return Task.FromResult(_connection);
			}
			_logger.LogInformation("The existing connection is not open.");

			if (_connection.CloseReason.Initiator == ShutdownInitiator.Application)
			{
				_logger.LogInformation("Connection is closed with Application as initiator. It will not be recovered.");
				_connection.Dispose();
				throw new Exception("Application shutdown is initiated by the Application. A new connection will not be created.");
			}

			var recoverable = _connection as IRecoverable;
			if (recoverable == null)
			{
				_logger.LogInformation("Connection is not recoverable, trying to create a new connection.");
				_connection.Dispose();
				throw new Exception("The non recoverable connection is closed. A channel can not be obtained.");
			}

			_logger.LogDebug("Connection is recoverable. Waiting for 'Recovery' event to be triggered. ");
			var recoverTcs = new TaskCompletionSource<IConnection>();

			EventHandler<EventArgs> completeTask = null;
			completeTask = (sender, args) =>
			{
				_logger.LogDebug("Connection has been recovered!");
				recoverTcs.TrySetResult(recoverable as IConnection);
				recoverable.Recovery -= completeTask;
			};

			recoverable.Recovery += completeTask;
			return recoverTcs.Task;
		}
	}