Fix UUID validation constraints in DTOs (#826)

* use dataset instead of distribution in resource.Detail_PUT.res200 test to reproduce issue #752 (the dataset already has a child distribution, which is sufficient to trigger the NotBlank error)
* consistent usage of @NotNull instead of @notblank for all UUID fields in DTOs

Author: dennisvang

src/main/java/org/fairdatapoint/api/dto/resource/ResourceDefinitionChildDTO.java

@@ -24,6 +24,7 @@
 
 import jakarta.validation.Valid;
 import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
@@ -38,7 +39,7 @@
 @Builder
 public class ResourceDefinitionChildDTO {
 
-    @NotBlank
+    @NotNull
     private UUID resourceDefinitionUuid;
 
     @NotBlank

src/main/java/org/fairdatapoint/api/dto/resource/ResourceDefinitionDTO.java

@@ -37,7 +37,7 @@
 @Builder
 public class ResourceDefinitionDTO {
 
-    @NotBlank
+    @NotNull
     private UUID uuid;
 
     @NotBlank

src/main/java/org/fairdatapoint/api/dto/schema/MetadataSchemaDTO.java

@@ -38,7 +38,6 @@
 public class MetadataSchemaDTO {
 
     @NotNull
-    @NotBlank
     private UUID uuid;
 
     @NotNull

src/main/java/org/fairdatapoint/api/dto/schema/MetadataSchemaDraftDTO.java

@@ -38,7 +38,6 @@
 public class MetadataSchemaDraftDTO {
 
     @NotNull
-    @NotBlank
     private UUID uuid;
 
     @NotNull

src/main/java/org/fairdatapoint/api/dto/search/SearchSavedQueryDTO.java

@@ -40,7 +40,7 @@
 @Builder
 public class SearchSavedQueryDTO {
 
-    @NotBlank
+    @NotNull
     private UUID uuid;
 
     @NotBlank

src/test/java/org/fairdatapoint/acceptance/resource/Detail_PUT.java

@@ -24,6 +24,7 @@
 
 import org.fairdatapoint.WebIntegrationTest;
 import org.fairdatapoint.api.dto.resource.ResourceDefinitionChangeDTO;
+import org.fairdatapoint.api.dto.resource.ResourceDefinitionChildDTO;
 import org.fairdatapoint.api.dto.resource.ResourceDefinitionDTO;
 import org.fairdatapoint.database.db.repository.ResourceDefinitionRepository;
 import org.fairdatapoint.entity.resource.ResourceDefinition;
@@ -36,6 +37,7 @@
 import org.springframework.http.*;
 
 import java.net.URI;
+import java.util.List;
 import java.util.UUID;
 
 import static java.lang.String.format;
@@ -69,7 +71,8 @@ private ResourceDefinitionChangeDTO reqDto(ResourceDefinition rd) {
     @DisplayName("HTTP 200")
     public void res200() {
         // GIVEN: Prepare data
-        ResourceDefinition resourceDefinition = resourceDefinitionRepository.findByUuid(KnownUUIDs.RD_DISTRIBUTION_UUID).get();
+        // (use dataset because it has children, which reproduces #752)
+        ResourceDefinition resourceDefinition = resourceDefinitionRepository.findByUuid(KnownUUIDs.RD_DATASET_UUID).get();
         ResourceDefinitionChangeDTO reqDto = reqDto(resourceDefinition);
 
         // AND: Prepare request