Spring JMS - activemq - individualDLQ not used - spring-boot

Question

I'm trying to set up spring JMS for activemq, and I'd like individual DLQs for easier monitoring rather than everything being lumped on one DLQ.
However my bean for this doesn't seem to be picked up. Could anyone point me out what I'm doing wrong as the documentation's pretty vague on how to do this programatically?
My Queue config:
#Bean
public MessageConverter jacksonJmsMessageConverter() {
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
converter.setTargetType(MessageType.TEXT);
converter.setTypeIdPropertyName("_type");
return converter;
}
#Bean
public DeadLetterStrategy deadLetterStrategy() {
IndividualDeadLetterStrategy deadLetterStrategy = new IndividualDeadLetterStrategy();
deadLetterStrategy.setQueueSuffix(".dlq");
return deadLetterStrategy;
}
#Bean
public RedeliveryPolicy redeliveryPolicy() {
RedeliveryPolicy redeliveryPolicy = new RedeliveryPolicy();
redeliveryPolicy.setInitialRedeliveryDelay(5000);
redeliveryPolicy.setBackOffMultiplier(2);
redeliveryPolicy.setUseExponentialBackOff(true);
redeliveryPolicy.setMaximumRedeliveries(5);
return redeliveryPolicy;
}
#Bean
public Queue myQueue() {
ActiveMQQueue queue = new ActiveMQQueue("myQueue");
return queue;
}

Answer 1

You can apply Individual Dead Letter Strategy using configurations something like this
#Bean
DeadLetterStrategy deadLetterStrategy(){
IndividualDeadLetterStrategy dlq = new IndividualDeadLetterStrategy(); //Messages of each will get to their respective Dead Letter Queues. if Original queue = 'x', its DLQ = 'prefix + x'
dlq.setQueueSuffix(".dlq");
dlq.setUseQueueForQueueMessages(true);
return dlq;
}
#Bean
public BrokerService brokerService(#Autowired DeadLetterStrategy strategy) throws Exception {
BrokerService broker = new BrokerService();
TransportConnector connector = new TransportConnector();
connector.setUri(new URI("your broker url")); //default/embedded broker url: vm://localhost?broker.persistent=true
broker.addConnector(connector);
PolicyEntry entry = new PolicyEntry();
entry.setDestination(new ActiveMQQueue("*")); //given DeadLetterStrategy will be applied to all types of Queues; ',' can also be used
entry.setDeadLetterStrategy(strategy);
PolicyMap map = new PolicyMap();
map.setPolicyEntries(Arrays.asList(entry));
broker.setDestinationPolicy(map);
return broker;
}
And finally your queue should look like this:
#JmsListener(destination = "main_queue_name" + ".dlq")
protected void processFailedItem(YourCustomPojo data) {
//do whatever you want
}