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Issue 2495: Response error codes handling for multi link request #2497

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Issue 2495: Response error codes handling for multi link request #2497

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5ce3d15
DATAREST-2495
anayonkars Jun 29, 2025
053d07f
DATAREST-2495
anayonkars Jun 29, 2025
823f8c2
DATAREST-2495
anayonkars Jun 29, 2025
a9d633b
DATAREST-2495
anayonkars Jun 29, 2025
1c634ea
DATAREST-2495
anayonkars Jun 29, 2025
247a793
DATAREST-2495
anayonkars Jun 29, 2025
874581b
Merge remote-tracking branch 'origin/bug/GH-2495-Response-handling-fo…
anayonkars Jun 30, 2025
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22 changes: 15 additions & 7 deletions ...main/java/org/springframework/data/rest/webmvc/RepositoryPropertyReferenceController.java
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Original file line number Diff line number Diff line change
Expand Up @@ -19,13 +19,10 @@
import static org.springframework.data.rest.webmvc.RestMediaTypes.*;
import static org.springframework.web.bind.annotation.RequestMethod.*;

import java.io.InputStream;
import java.io.Serializable;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.Map;
import java.util.*;
import java.util.Map.Entry;
import java.util.Optional;
import java.util.function.Function;

import org.springframework.context.ApplicationEventPublisher;
Expand All @@ -42,6 +39,7 @@
import org.springframework.data.rest.core.event.BeforeLinkDeleteEvent;
import org.springframework.data.rest.core.event.BeforeLinkSaveEvent;
import org.springframework.data.rest.webmvc.support.BackendId;
import org.springframework.data.rest.webmvc.util.InputStreamHttpInputMessage;
import org.springframework.hateoas.CollectionModel;
import org.springframework.hateoas.EntityModel;
import org.springframework.hateoas.IanaLinkRelations;
Expand All @@ -54,6 +52,7 @@
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.http.converter.HttpMessageNotReadableException;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
import org.springframework.web.bind.annotation.ExceptionHandler;
Expand Down Expand Up @@ -248,6 +247,10 @@ public ResponseEntity<? extends RepresentationModel<?>> createPropertyReference(
Class<?> propertyType = prop.property.getType();

if (prop.property.isCollectionLike()) {
if (source.getLinks().isEmpty()) {
throw new HttpMessageNotReadableException("No links provided",
InputStreamHttpInputMessage.of(InputStream.nullInputStream()));
}

Collection<Object> collection = AUGMENTING_METHODS.contains(requestMethod) //
? (Collection<Object>) prop.propertyValue //
Expand All @@ -261,6 +264,10 @@ public ResponseEntity<? extends RepresentationModel<?>> createPropertyReference(
prop.accessor.setProperty(prop.property, collection);

} else if (prop.property.isMap()) {
if (source.getLinks().isEmpty()) {
throw new HttpMessageNotReadableException("No links provided",
InputStreamHttpInputMessage.of(InputStream.nullInputStream()));
}

Map<LinkRelation, Object> map = AUGMENTING_METHODS.contains(requestMethod) //
? (Map<LinkRelation, Object>) prop.propertyValue //
Expand All @@ -283,8 +290,9 @@ public ResponseEntity<? extends RepresentationModel<?>> createPropertyReference(
}

if (!source.getLinks().hasSingleLink()) {
throw new IllegalArgumentException(
"Must send only 1 link to update a property reference that isn't a List or a Map.");
throw new HttpMessageNotReadableException(
"Must send only 1 link to update a property reference that isn't a List or a Map.",
InputStreamHttpInputMessage.of(InputStream.nullInputStream()));
}

prop.accessor.setProperty(prop.property,
Expand Down
104 changes: 99 additions & 5 deletions .../org/springframework/data/rest/webmvc/RepositoryPropertyReferenceControllerUnitTests.java
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Original file line number Diff line number Diff line change
Expand Up @@ -15,13 +15,12 @@
*/
package org.springframework.data.rest.webmvc;

import static org.assertj.core.api.Assertions.catchThrowable;
import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
import static org.mockito.ArgumentMatchers.*;
import static org.mockito.Mockito.*;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import java.util.*;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
Expand All @@ -46,6 +45,7 @@
import org.springframework.hateoas.CollectionModel;
import org.springframework.hateoas.Link;
import org.springframework.http.HttpMethod;
import org.springframework.http.converter.HttpMessageNotReadableException;

/**
* Unit tests for {@link RepositoryPropertyReferenceController}.
Expand Down Expand Up @@ -90,11 +90,105 @@ void usesRepositoryInvokerToLookupRelatedInstance() throws Exception {
verify(invoker).invokeFindById("some-id");
}

@RestResource
@Test // DATAREST-2495
void rejectsEmptyLinksForAssociationUpdate() throws Exception {

KeyValuePersistentEntity<?, ?> entity = mappingContext.getRequiredPersistentEntity(Sample.class);

ResourceMappings mappings = new PersistentEntitiesResourceMappings(
new PersistentEntities(Collections.singleton(mappingContext)));
ResourceMetadata metadata = spy(mappings.getMetadataFor(Sample.class));
when(metadata.getSupportedHttpMethods()).thenReturn(AllSupportedHttpMethods.INSTANCE);

RepositoryPropertyReferenceController controller = new RepositoryPropertyReferenceController(repositories,
invokerFactory);
controller.setApplicationEventPublisher(publisher);

doReturn(Optional.of(new Sample())).when(invoker).invokeFindById(4711);

RootResourceInformation information = new RootResourceInformation(metadata, entity, invoker);

// Do we need integration test to verify HTTP response code?
Throwable thrown = catchThrowable(
() -> controller.createPropertyReference(information, HttpMethod.POST, null, 4711, "references"));
assertThat(thrown).isInstanceOf(HttpMessageNotReadableException.class);

verify(invoker, never()).invokeFindById("some-id");
}

@Test // GH-2495
void rejectsMultipleLinksForSingleValuedAssociation() throws Exception {

KeyValuePersistentEntity<?, ?> entity = mappingContext.getRequiredPersistentEntity(SingleSample.class);

ResourceMappings mappings = new PersistentEntitiesResourceMappings(
new PersistentEntities(Collections.singleton(mappingContext)));
ResourceMetadata metadata = spy(mappings.getMetadataFor(SingleSample.class));
when(metadata.getSupportedHttpMethods()).thenReturn(AllSupportedHttpMethods.INSTANCE);

RepositoryPropertyReferenceController controller = new RepositoryPropertyReferenceController(repositories,
invokerFactory);
controller.setApplicationEventPublisher(publisher);

doReturn(Optional.of(new SingleSample())).when(invoker).invokeFindById(4711);

RootResourceInformation information = new RootResourceInformation(metadata, entity, invoker);
CollectionModel<Object> request = CollectionModel
.empty(List.of(Link.of("/reference/some-id"), Link.of("/reference/some-another-id")));

// Do we need integration test to verify HTTP response code?
Throwable thrown = catchThrowable(
() -> controller.createPropertyReference(information, HttpMethod.POST, request, 4711, "reference"));
assertThat(thrown).isInstanceOf(HttpMessageNotReadableException.class);

verify(invokerFactory, never()).getInvokerFor(Reference.class);
verify(invoker, never()).invokeFindById("some-id");
verify(invoker, never()).invokeFindById("some-another-id");
}

@Test // GH-2495
void rejectsMapLinksForSingleValuedAssociation() throws Exception {

KeyValuePersistentEntity<?, ?> entity = mappingContext.getRequiredPersistentEntity(MapSample.class);

ResourceMappings mappings = new PersistentEntitiesResourceMappings(
new PersistentEntities(Collections.singleton(mappingContext)));
ResourceMetadata metadata = spy(mappings.getMetadataFor(MapSample.class));
when(metadata.getSupportedHttpMethods()).thenReturn(AllSupportedHttpMethods.INSTANCE);

RepositoryPropertyReferenceController controller = new RepositoryPropertyReferenceController(repositories,
invokerFactory);
controller.setApplicationEventPublisher(publisher);

doReturn(Optional.of(new MapSample())).when(invoker).invokeFindById(4711);

RootResourceInformation information = new RootResourceInformation(metadata, entity, invoker);

// Do we need integration test to verify HTTP response code?
Throwable thrown = catchThrowable(
() -> controller.createPropertyReference(information, HttpMethod.POST, null, 4711, "reference"));
assertThat(thrown).isInstanceOf(HttpMessageNotReadableException.class);

verify(invokerFactory, never()).getInvokerFor(Reference.class);
verify(invoker, never()).invokeFindById("some-id");
}


@RestResource
static class Sample {
@org.springframework.data.annotation.Reference List<Reference> references = new ArrayList<Reference>();
}

@RestResource
static class SingleSample {
@org.springframework.data.annotation.Reference Reference reference;
}

@RestResource
static class MapSample {
@org.springframework.data.annotation.Reference Map<Reference, Reference> reference;
}

@RestResource
static class Reference {}

Expand Down