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DATACMNS-1753 - Don't consider CompletableFuture as reactive type.

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CompletableFuture use is permitted in imperative repositories so we should not use CompletableFuture as indicator to switch a repository implementation to a reactive one.

Original pull request: #450.
This commit is contained in:
Gerrit Meier
2020-06-24 15:51:02 +02:00
committed by Mark Paluch
parent 06184a3be5
commit 895311c208
4 changed files with 21 additions and 3 deletions
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3
src/main/java/org/springframework/data/repository/util/ReactiveWrapperConverters.java
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@@ -130,7 +130,8 @@ public class ReactiveWrapperConverters {
*/
public static boolean supports(Class<?> type) {
return RegistryHolder.REACTIVE_ADAPTER_REGISTRY != null
&& RegistryHolder.REACTIVE_ADAPTER_REGISTRY.getAdapter(type) != null;
&& RegistryHolder.REACTIVE_ADAPTER_REGISTRY.getAdapter(type) != null
&& RegistryHolder.REACTIVE_ADAPTER_REGISTRY.getAdapter(type).getDescriptor().isDeferred();
}
/**

9
src/main/java/org/springframework/data/repository/util/ReactiveWrappers.java
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@@ -137,7 +137,9 @@ public class ReactiveWrappers {
return Arrays.stream(type.getMethods())//
.flatMap(ReflectionUtils::returnTypeAndParameters)//
.anyMatch(ReactiveWrapperConverters::supports);
.anyMatch(possibleReactiveSupportedType ->
ReactiveWrapperConverters.supports(possibleReactiveSupportedType)
&& findDescriptor(possibleReactiveSupportedType).isPresent());
}
/**
@@ -247,7 +249,10 @@ public class ReactiveWrappers {
}
ReactiveAdapter adapter = adapterRegistry.getAdapter(type);
if (adapter != null && adapter.getDescriptor().isDeferred()) {
return Optional.ofNullable(adapter.getDescriptor());
}
return Optional.ofNullable(adapter == null ? null : adapter.getDescriptor());
return Optional.empty();
}
}

7
src/test/java/org/springframework/data/repository/util/ReactiveWrapperConvertersUnitTests.java
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@@ -24,6 +24,8 @@ import rx.Completable;
import rx.Observable;
import rx.Single;
import java.util.concurrent.CompletableFuture;
import org.junit.jupiter.api.Test;
import org.reactivestreams.Publisher;
@@ -61,6 +63,11 @@ class ReactiveWrapperConvertersUnitTests {
assertThat(ReactiveWrapperConverters.supports(io.reactivex.Completable.class)).isTrue();
}
@Test // DATACMNS-1753
void shouldNotSupportCompletableFuture() {
assertThat(ReactiveWrapperConverters.supports(CompletableFuture.class)).isFalse();
}
@Test // DATACMNS-836
void toWrapperShouldCastMonoToMono() {

5
src/test/java/org/springframework/data/repository/util/ReactiveWrappersUnitTests.java
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@@ -24,6 +24,8 @@ import reactor.core.publisher.Mono;
import rx.Observable;
import rx.Single;
import java.util.concurrent.CompletableFuture;
import org.junit.jupiter.api.Test;
import org.reactivestreams.Publisher;
@@ -41,6 +43,7 @@ class ReactiveWrappersUnitTests {
assertThat(ReactiveWrappers.isNoValueType(Flux.class)).isFalse();
assertThat(ReactiveWrappers.isNoValueType(Single.class)).isFalse();
assertThat(ReactiveWrappers.isNoValueType(Completable.class)).isTrue();
assertThat(ReactiveWrappers.isNoValueType(CompletableFuture.class)).isFalse();
assertThat(ReactiveWrappers.isNoValueType(Observable.class)).isFalse();
assertThat(ReactiveWrappers.isNoValueType(Publisher.class)).isFalse();
assertThat(ReactiveWrappers.isNoValueType(io.reactivex.Single.class)).isFalse();
@@ -56,6 +59,7 @@ class ReactiveWrappersUnitTests {
assertThat(ReactiveWrappers.isSingleValueType(Flux.class)).isFalse();
assertThat(ReactiveWrappers.isSingleValueType(Single.class)).isTrue();
assertThat(ReactiveWrappers.isSingleValueType(Completable.class)).isFalse();
assertThat(ReactiveWrappers.isSingleValueType(CompletableFuture.class)).isFalse();
assertThat(ReactiveWrappers.isSingleValueType(Observable.class)).isFalse();
assertThat(ReactiveWrappers.isSingleValueType(Publisher.class)).isFalse();
assertThat(ReactiveWrappers.isSingleValueType(io.reactivex.Single.class)).isTrue();
@@ -72,6 +76,7 @@ class ReactiveWrappersUnitTests {
assertThat(ReactiveWrappers.isMultiValueType(Flux.class)).isTrue();
assertThat(ReactiveWrappers.isMultiValueType(Single.class)).isFalse();
assertThat(ReactiveWrappers.isSingleValueType(Completable.class)).isFalse();
assertThat(ReactiveWrappers.isSingleValueType(CompletableFuture.class)).isFalse();
assertThat(ReactiveWrappers.isMultiValueType(Observable.class)).isTrue();
assertThat(ReactiveWrappers.isMultiValueType(Publisher.class)).isTrue();
assertThat(ReactiveWrappers.isMultiValueType(io.reactivex.Single.class)).isFalse();