我有一个聚合器实用程序类,在这里我必须合并多个cassandra表数据。我的生产代码如下所示,但不完全相同。
@Autowired FollowersRepository followersRepository;
@Autowired TopicRepository topicRepository;
@GetMapping("/info")
public Flux<FullDetails> getData(){
return Flux.create(emitter ->{
followersRepository.findAll()
.doOnNext(data -> {
List<String> all = data.getTopiclist(); //will get list of topic id
List<Alltopics> processedList = new ArrayList<Alltopics>();
all.forEach(action -> {
topicRepository.findById(action) //will get full detail about topic
.doOnSuccess(topic ->{
processedList.add(topic);
if (processedList.size() >= all.size()) {
FullDetails fulldetails = new FullDetails(action,processedList);
emitter.next(fulldetails);
//emitter.complete();
}
})
.subscribe();
});
})
.doOnComplete(() ->{
System.out.println("All the data are processed !!!");
//emitter.complete(); // executing if all the data are pushed from database not waiting for doOnNext method to complete.
})
.subscribe();
});
}
有关更多详细信息,请在此处CodeLink中引用代码。
我尝试使用doOnComplete和doOnFinally处理外部Flux,它没有等待所有内部非阻塞调用完成。
在处理Flux内部所有嵌套的Mono / Flux(非阻塞)请求之后,我想调用onComplete。
对于嵌套阻塞通量/单声道,内部通量/单声道完成后将执行外部通量doOnComplete方法。
PostScript(PS):-
在下面的示例中,我找不到在哪里放置generator.complete()。
因为doOnComplete()方法是在所有内部Mono完成之前调用的。
请求正文:-
[{ "content":"Intro to React and operators", "author":"Josh Long", "name":"Spring WebFlux" },{ "content":"Intro to Flux", "author":"Josh Long", "name":"Spring WebFlux" },{ "content":"Intro to Mono", "author":"Josh Long", "name":"Spring WebFlux" }]
我的休息控制器:-
@PostMapping("/topics")
public Flux<?> loadTopic(@RequestBody Flux<Alltopics> data)
{
return Flux.create(emitter ->{
data
.map(topic -> {
topic.setTopicid(null ==topic.getTopicid() || topic.getTopicid().isEmpty()?UUID.randomUUID().toString():topic.getTopicid());
return topic;
})
.doOnNext(topic -> {
topicRepository.save(topic).doOnSuccess(persistedTopic ->{
emitter.next(persistedTopic);
//emitter.complete();
}).subscribe();
})
.doOnComplete(() -> {
//emitter.complete();
System.out.println(" all the data are processed!!!");
}).subscribe();
});
}