@Bean
	TopicExchange exchange() {
		return new TopicExchange("mykaarma.messaging.event.exchange");
	}

	@Bean
	TopicExchange FailExchange() {
        return new TopicExchange("kaarma.crawler.fail.exchange");
    }



	@Bean
	Queue queue() {
		return QueueBuilder.durable(Application.getQueueName())
				.withArgument("x-dead-letter-routing-key", "mykaarma.qna.message.events.fail.key")
				.withArgument("x-dead-letter-exchange", Application.DEAD_LETTER_QUEUE_NAME)
				.build();
	}
	@Bean
	Binding binding(Queue queue,
			TopicExchange exchange) {
		return BindingBuilder.bind(queue()).to(exchange()).with("mykaarma.messaging.event.key");
	}

	@Bean
	Binding bindingFailQueue(Queue deadLetterQueue, TopicExchange  FailExchange) {
		return BindingBuilder.bind(deadLetterQueue).to(FailExchange).with("mykaarma.qna.message.events.fail.key");

	}

	@Bean
	Queue deadLetterQueue() {
		return QueueBuilder.durable(Application.DEAD_LETTER_QUEUE_NAME).build();
	}