How to create Spring Integration Flow from two MessageProducerSpec?

Question

I am using Spring Integration, Java DSL (release 1.1.3) I have my org.springframework.integration.dsl.IntegrationFlow defined as follows

 return         


        

Answer 1

There is no reason to do that in Spring Integration.

You always can output different endpoints to the same MessageChannel.

Therefore you should have several simple IntegrationFlows for all those messageProducerSpec and finish them with the same channel, where also should be the main flow which will listen from that channel:

@Bean
public IntegrationFlow producer1() {
      return IntegrationFlows.from(messageProducerSpec1) 
        .channel("input") 
        .get();
} 

@Bean
public IntegrationFlow producer2() {
      return IntegrationFlows.from(messageProducerSpec2) 
        .channel("input") 
        .get();
} 

...

@Bean
public IntegrationFlow mainFlow() {
      return IntegrationFlows.from("input") 
        .handle(handler) 
        .handle(aggregator) 
        .handle(endpoint) 
        .get();
}