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Added cases using subscribeOn and publishOn when debuggin reactive streams, for analysis (#5841)

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Ger Roza 2018-12-05 01:14:12 -02:00 committed by maibin
parent c4d92d17b5
commit a21f82001c
4 changed files with 73 additions and 3 deletions
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32
spring-5-reactive/src/main/java/com/baeldung/debugging/consumer/chronjobs/ChronJobs.java
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@ -119,4 +119,36 @@ public class ChronJobs {
logger.info("process 4 with approach 4");
service.processUsingApproachFourWithCheckpoint(fluxFoo);
}
@Scheduled(fixedRate = 20000)
public void consumeFiniteFluxWitParallelScheduler() {
Flux<Foo> fluxFoo = client.get()
.uri("/functional-reactive/periodic-foo-2")
.accept(MediaType.TEXT_EVENT_STREAM)
.retrieve()
.bodyToFlux(FooDto.class)
.delayElements(Duration.ofMillis(100))
.map(dto -> {
logger.debug("process 5-parallel with dto id {} name{}", dto.getId(), dto.getName());
return new Foo(dto);
});
logger.info("process 5-parallel with approach 5-parallel");
service.processUsingApproachFivePublishingToDifferentParallelThreads(fluxFoo);
}
@Scheduled(fixedRate = 20000)
public void consumeFiniteFluxWithSingleSchedulers() {
Flux<Foo> fluxFoo = client.get()
.uri("/functional-reactive/periodic-foo-2")
.accept(MediaType.TEXT_EVENT_STREAM)
.retrieve()
.bodyToFlux(FooDto.class)
.delayElements(Duration.ofMillis(100))
.map(dto -> {
logger.debug("process 5-single with dto id {} name{}", dto.getId(), dto.getName());
return new Foo(dto);
});
logger.info("process 5-single with approach 5-single");
service.processUsingApproachFivePublishingToDifferentSingleThreads(fluxFoo);
}
}

7
spring-5-reactive/src/main/java/com/baeldung/debugging/consumer/model/Foo.java
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@ -6,8 +6,13 @@ import org.springframework.data.annotation.Id;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
@Data
@Getter
@Setter
@NoArgsConstructor
@AllArgsConstructor
public class Foo {

8
spring-5-reactive/src/main/java/com/baeldung/debugging/consumer/model/FooDto.java
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@ -1,9 +1,13 @@
package com.baeldung.debugging.consumer.model;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
@Data
@Getter
@Setter
@NoArgsConstructor
@AllArgsConstructor
public class FooDto {

29
spring-5-reactive/src/main/java/com/baeldung/debugging/consumer/service/FooService.java
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@ -13,6 +13,7 @@ import org.springframework.stereotype.Component;
import com.baeldung.debugging.consumer.model.Foo;
import reactor.core.publisher.Flux;
import reactor.core.scheduler.Schedulers;
@Component
public class FooService {
@ -88,4 +89,32 @@ public class FooService {
flux.subscribe();
}
public void processUsingApproachFivePublishingToDifferentParallelThreads(Flux<Foo> flux) {
logger.info("starting approach five-parallel!");
flux = concatAndSubstringFooName(flux).publishOn(Schedulers.newParallel("five-parallel-foo"))
.log();
flux = concatAndSubstringFooName(flux);
flux = divideFooQuantity(flux);
flux = reportResult(flux, "FIVE-PARALLEL").publishOn(Schedulers.newSingle("five-parallel-bar"));
flux = concatAndSubstringFooName(flux).doOnError(error -> {
logger.error("Approach 5-parallel failed!", error);
});
flux.subscribeOn(Schedulers.newParallel("five-parallel-starter"))
.subscribe();
}
public void processUsingApproachFivePublishingToDifferentSingleThreads(Flux<Foo> flux) {
logger.info("starting approach five-single!");
flux = flux.log()
.subscribeOn(Schedulers.newSingle("five-single-starter"));
flux = concatAndSubstringFooName(flux).publishOn(Schedulers.newSingle("five-single-foo"));
flux = concatAndSubstringFooName(flux);
flux = divideFooQuantity(flux);
flux = reportResult(flux, "FIVE-SINGLE").publishOn(Schedulers.newSingle("five-single-bar"));
flux = concatAndSubstringFooName(flux).doOnError(error -> {
logger.error("Approach 5-single failed!", error);
});
flux.subscribe();
}
}