fix: return 404 when a dataset doesn't have attached policies

edc-controlplane/edc-controlplane-base/build.gradle.kts

@@ -77,5 +77,7 @@ dependencies {
 
     // cloud provisioner extensions
     runtimeOnly(project(":edc-extensions:backport:azblob-provisioner"))
+    // fix dataset
+    runtimeOnly(project(":edc-extensions:dataset-bugfix"))
 
 }

edc-extensions/dataset-bugfix/build.gradle.kts

@@ -0,0 +1,28 @@
+/********************************************************************************
+ * Copyright (c) 2024 Contributors to the Eclipse Foundation
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information regarding copyright ownership.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License, Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ********************************************************************************/
+
+plugins {
+    `java-library`
+}
+
+dependencies {
+    api(libs.edc.spi.core)
+    api(libs.edc.spi.jsonld)
+    api(libs.edc.spi.web)
+}

edc-extensions/dataset-bugfix/src/main/java/org/eclipse/tractusx/edc/dataset/fix/DatasetFixExtension.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2024 Contributors to the Eclipse Foundation
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information regarding copyright ownership.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License, Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.eclipse.tractusx.edc.dataset.fix;
+
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.NotFoundException;
+import jakarta.ws.rs.container.ContainerRequestContext;
+import jakarta.ws.rs.container.ContainerResponseContext;
+import jakarta.ws.rs.container.ContainerResponseFilter;
+import org.eclipse.edc.runtime.metamodel.annotation.Inject;
+import org.eclipse.edc.spi.system.ServiceExtension;
+import org.eclipse.edc.spi.system.ServiceExtensionContext;
+import org.eclipse.edc.web.spi.WebService;
+import org.eclipse.edc.web.spi.configuration.ApiContext;
+
+import static org.eclipse.edc.jsonld.spi.JsonLdKeywords.TYPE;
+import static org.eclipse.edc.jsonld.spi.PropertyAndTypeNames.DCAT_DATASET_TYPE;
+import static org.eclipse.edc.jsonld.spi.PropertyAndTypeNames.ODRL_POLICY_ATTRIBUTE;
+
+public class DatasetFixExtension implements ServiceExtension {
+
+    @Inject
+    private WebService webService;
+
+    @Override
+    public void initialize(ServiceExtensionContext context) {
+        webService.registerResource(ApiContext.PROTOCOL, new DatasetFilter());
+    }
+
+    private static class DatasetFilter implements ContainerResponseFilter {
+
+        @Override
+        public void filter(ContainerRequestContext requestContext, ContainerResponseContext responseContext) {
+            if (requestContext.getUriInfo().getPath().contains("catalog/datasets/") && requestContext.getMethod().equals("GET")) {
+                if (responseContext.getEntity() instanceof JsonObject jsonObject) {
+                    if (jsonObject.getString(TYPE).equals(DCAT_DATASET_TYPE) &&
+                            jsonObject.containsKey(ODRL_POLICY_ATTRIBUTE) &&
+                            jsonObject.getJsonArray(ODRL_POLICY_ATTRIBUTE).isEmpty()
+                    ) {
+                        throw new NotFoundException();
+                    }
+                }
+            }
+        }
+    }
+}

edc-extensions/dataset-bugfix/src/main/resources/META-INF/services/org.eclipse.edc.spi.system.ServiceExtension

@@ -0,0 +1,20 @@
+#################################################################################
+#  Copyright (c) 2024 Contributors to the Eclipse Foundation
+#
+#  See the NOTICE file(s) distributed with this work for additional
+#  information regarding copyright ownership.
+#
+#  This program and the accompanying materials are made available under the
+#  terms of the Apache License, Version 2.0 which is available at
+#  https://www.apache.org/licenses/LICENSE-2.0.
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#  License for the specific language governing permissions and limitations
+#  under the License.
+#
+#  SPDX-License-Identifier: Apache-2.0
+#################################################################################
+
+org.eclipse.tractusx.edc.dataset.fix.DatasetFixExtension

edc-tests/edc-controlplane/catalog-tests/src/test/java/org/eclipse/tractusx/edc/tests/catalog/CatalogTest.java

@@ -30,6 +30,7 @@
 import org.junit.jupiter.api.extension.RegisterExtension;
 
 import java.util.Map;
+import java.util.UUID;
 
 import static java.util.stream.IntStream.range;
 import static org.assertj.core.api.Assertions.assertThat;
@@ -81,7 +82,6 @@ void requestCatalog_fulfillsPolicy_shouldReturnOffer() {
                     .allSatisfy(co -> {
                         assertThat(getDatasetAssetId(co.asJsonObject())).isEqualTo("test-asset");
                     });
-
         }
 
         @Test
@@ -203,7 +203,19 @@ void requestCatalog_of1000Assets_shouldContainAll() {
             var o2 = CONSUMER.getCatalogDatasets(PROVIDER, createQuery(500, 0));
             var o3 = CONSUMER.getCatalogDatasets(PROVIDER, createQuery(500, 500));
             assertThat(o2).doesNotContainAnyElementsOf(o3);
+        }
 
+        @Test
+        void getDataset_shouldReturn404_whenDatasetHasNoPolicies() {
+            var assetId = UUID.randomUUID().toString();
+            PROVIDER.createAsset(assetId);
+
+            PROVIDER.getProtocolEndpoint().baseRequest()
+                    .header("Authorization", "{ \"client_id\": \"CONSUMER\", \"BusinessPartnerNumber\": \"BPN-CONSUMER\" }")
+                    .get("/catalog/datasets/" + assetId)
+                    .then()
+                    .log().ifValidationFails()
+                    .statusCode(404);
         }
     }
 

settings.gradle.kts

@@ -38,6 +38,7 @@ include(":edc-extensions:bpn-validation:bpn-validation-api")
 include(":edc-extensions:bpn-validation:bpn-validation-spi")
 include(":edc-extensions:bpn-validation:bpn-validation-core")
 include(":edc-extensions:bpn-validation:business-partner-store-sql")
+include(":edc-extensions:dataset-bugfix")
 include(":edc-extensions:migrations:postgresql-migration-lib")
 include(":edc-extensions:migrations:control-plane-migration")
 include(":edc-extensions:migrations:data-plane-migration")