log4net.Appender.RabbitMQAppender.ActivateOptions C# (CSharp) Method

        public override void ActivateOptions()
        {
            _messageBuilder = new XmlMessageBuilder();
            _messageBuilder.ActivateOptions();
            _connectionFactory = new ConnectionFactory {
                HostName = HostName,
                VirtualHost = VirtualHost,
                UserName = UserName,
                Password = Password,
                RequestedHeartbeat = RequestedHeartbeat,
                Port = Port
            };
            _worker = new WorkerThread<LoggingEvent>(string.Concat("Worker for log4net appender '", Name, "'"), TimeSpan.FromSeconds(FlushInterval), Process);
        }

        private void ConfigureRepositoryWithLayoutWithMessageProperties(PatternLayout layout)
        {
            LogManager.Shutdown();

            _Rep = LogManager.CreateRepository(Guid.NewGuid().ToString());
            _Appender = new RabbitMQAppender { Layout = layout };
            _Appender.ExchangeProperties.Name = "log4Net.RabbitMQ.Tests";
            _Appender.ExchangeProperties.ExchangeType = "fanout";
            _Appender.ExchangeProperties.Durable = true;

            _Appender.MessageProperties.AppId = Guid.NewGuid().ToString();
            _Appender.MessageProperties.ContentType = new PatternLayout("text/plain");
            _Appender.MessageProperties.Persistent = true;
            _Appender.MessageProperties.Priority = new PatternLayout("%property{priority}");
            _Appender.MessageProperties.Topic = new PatternLayout("%property{topic}");

            // An app could do something like this to customize the message priority and routing key on a message by message 
            // basis.

            ThreadContext.Properties["priority"] = "0";
            ThreadContext.Properties["topic"] = "log4net.RabbitMQ.Tests";

            _Appender.HostName = this.hostName;

            _Appender.ActivateOptions();

            BasicConfigurator.Configure(_Rep, _Appender);
            _Log = LogManager.GetLogger(_Rep.Name, GetType());

            BasicConfigurator.Configure(new ConsoleAppender { Layout = new SimpleLayout() });
        }