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Add SmallRye Mutiny adapters

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Closes gh-26222
This commit is contained in:
hantsy
2021-08-28 11:20:12 +08:00
committed by Rossen Stoyanchev
parent 8f33450df2
commit 1dc128361f
4 changed files with 77 additions and 0 deletions
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27
spring-core/src/main/java/org/springframework/core/ReactiveAdapterRegistry.java
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@@ -24,6 +24,8 @@ import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionStage;
import java.util.function.Function;
import io.smallrye.mutiny.Multi;
import io.smallrye.mutiny.Uni;
import kotlinx.coroutines.CompletableDeferredKt;
import kotlinx.coroutines.Deferred;
import org.reactivestreams.Publisher;
@@ -72,6 +74,8 @@ public class ReactiveAdapterRegistry {
private static final boolean kotlinCoroutinesPresent;
private static final boolean mutinyPresent;
static {
ClassLoader classLoader = ReactiveAdapterRegistry.class.getClassLoader();
reactorPresent = ClassUtils.isPresent("reactor.core.publisher.Flux", classLoader);
@@ -81,6 +85,7 @@ public class ReactiveAdapterRegistry {
rxjava3Present = ClassUtils.isPresent("io.reactivex.rxjava3.core.Flowable", classLoader);
flowPublisherPresent = ClassUtils.isPresent("java.util.concurrent.Flow.Publisher", classLoader);
kotlinCoroutinesPresent = ClassUtils.isPresent("kotlinx.coroutines.reactor.MonoKt", classLoader);
mutinyPresent = ClassUtils.isPresent("io.smallrye.mutiny.Uni", classLoader);
}
private final List<ReactiveAdapter> adapters = new ArrayList<>();
@@ -121,6 +126,11 @@ public class ReactiveAdapterRegistry {
if (reactorPresent && kotlinCoroutinesPresent) {
new CoroutinesRegistrar().registerAdapters(this);
}
// SmallRye Mutiny
if (mutinyPresent) {
new MutinyRegistrar().registerAdapters(this);
}
}
@@ -417,6 +427,23 @@ public class ReactiveAdapterRegistry {
}
}
private static class MutinyRegistrar {
void registerAdapters(ReactiveAdapterRegistry registry) {
registry.registerReactiveType(
ReactiveTypeDescriptor.singleOptionalValue(Uni.class, ()-> Uni.createFrom().nothing()),
uni ->((Uni<?>)uni).convert().toPublisher(),
publisher -> Uni.createFrom().publisher(publisher)
);
registry.registerReactiveType(
ReactiveTypeDescriptor.multiValue(Multi.class, ()-> Multi.createFrom().empty()),
multi -> (Multi<?>) multi,
publisher-> Multi.createFrom().publisher(publisher)
);
}
}
/**
* {@code BlockHoundIntegration} for spring-core classes.