我使用spring-cloud函数来处理来自Flux的kafka的数据。默认情况下,它在使用者线程(消息被消费的地方(中处理数据。我将实现用于并行数据处理和节流的线程池,Spring Cloud Integration中有一个很棒的实现,叫做executorChannel(https://docs.spring.io/spring-integration/api/org/springframework/integration/channel/ExecutorChannel.html)
功能实现示例:
public static class FN1 implements Function<Flux<String>, Flux<String>> {
public Flux<String> apply(Flux<String> data) {
return data
.map(f -> doSomething() )
}
}
因此,我找不到通过executorChannel连接以这种方式实现的函数的简单方法。
M.b.有一种方法可以定义inputChannel类型吗?
UPD:阅读奥列格回答下的评论。它们非常有用。
你的意思是这样的吗?
@SpringBootApplication
public class SampleFunctoinAppApplication {
public static void main(String[] args) throws Exception {
ApplicationContext context = SpringApplication.run(SampleFunctoinAppApplication.class, args);
SubscribableChannel output = context.getBean("output", SubscribableChannel.class);
output.subscribe(System.out::println);
MessageChannel channel = context.getBean("executorChannel", MessageChannel.class);
channel.send(new GenericMessage<String>("hello"));
}
@Bean
public IntegrationFlow flow() {
return IntegrationFlows
.from("executorChannel")
.transform(echo())
.channel("output")
.get();
}
@Bean
public ExecutorChannel executorChannel() {
return new ExecutorChannel(Executors.newCachedThreadPool());
}
public Function<String, String> echo() {
return v -> v;
}
}
您所说的"定义inputChannel类型"是什么意思?