fix: Fix BigQuery#listDatasets to include dataset location in the response (#3238)

Author: sumeetgajjar

google-cloud-bigquery/src/main/java/com/google/cloud/bigquery/spi/v2/HttpBigQueryRpc.java

@@ -95,6 +95,7 @@ public Dataset apply(DatasetList.Datasets datasetPb) {
               .setFriendlyName(datasetPb.getFriendlyName())
               .setId(datasetPb.getId())
               .setKind(datasetPb.getKind())
+              .setLocation(datasetPb.getLocation())
               .setLabels(datasetPb.getLabels());
         }
       };

google-cloud-bigquery/src/test/java/com/google/cloud/bigquery/BigQueryImplTest.java

@@ -81,16 +81,22 @@ public class BigQueryImplTest {
           Acl.of(Acl.Group.ofAllAuthenticatedUsers(), Acl.Role.READER),
           Acl.of(new Acl.View(TableId.of(PROJECT, "dataset", "table"))));
   private static final DatasetInfo DATASET_INFO =
-      DatasetInfo.newBuilder(DATASET).setAcl(ACCESS_RULES).setDescription("description").build();
+      DatasetInfo.newBuilder(DATASET)
+          .setAcl(ACCESS_RULES)
+          .setDescription("description")
+          .setLocation(LOCATION)
+          .build();
   private static final DatasetInfo DATASET_INFO_WITH_PROJECT =
       DatasetInfo.newBuilder(PROJECT, DATASET)
           .setAcl(ACCESS_RULES_WITH_PROJECT)
           .setDescription("description")
+          .setLocation(LOCATION)
           .build();
   private static final DatasetInfo OTHER_DATASET_INFO =
       DatasetInfo.newBuilder(PROJECT, OTHER_DATASET)
           .setAcl(ACCESS_RULES)
           .setDescription("other description")
+          .setLocation(LOCATION)
           .build();
   private static final TableId TABLE_ID = TableId.of(DATASET, TABLE);
   private static final TableId OTHER_TABLE_ID = TableId.of(PROJECT, DATASET, OTHER_TABLE);

google-cloud-bigquery/src/test/java/com/google/cloud/bigquery/it/ITBigQueryTest.java

@@ -775,6 +775,20 @@ public class ITBigQueryTest {
 
   private static final Set<String> PUBLIC_DATASETS =
       ImmutableSet.of("github_repos", "hacker_news", "noaa_gsod", "samples", "usa_names");
+  private static final Map<String, String> PUBLIC_DATASETS_LOCATION =
+      ImmutableMap.<String, String>builder()
+          .put("github_repos", "US")
+          .put("hacker_news", "US")
+          .put("noaa_gsod", "US")
+          .put("samples", "US")
+          .put("usa_names", "US")
+          // Dataset url:
+          // https://console.cloud.google.com/bigquery?project=bigquery-public-data&ws=!1m4!1m3!3m2!1sbigquery-public-data!2sgnomAD_asiane1
+          .put("gnomAD_asiane1", "asia-northeast1")
+          // Dataset url:
+          // https://console.cloud.google.com/bigquery?project=bigquery-public-data&ws=!1m4!1m3!3m2!1sbigquery-public-data!2sgnomAD_eu
+          .put("gnomAD_eu", "EU")
+          .build();
 
   private static final String PUBLIC_PROJECT = "bigquery-public-data";
   private static final String PUBLIC_DATASET = "census_bureau_international";
@@ -1113,11 +1127,16 @@ public void testListDatasets() {
     Page<Dataset> datasets = bigquery.listDatasets("bigquery-public-data");
     Iterator<Dataset> iterator = datasets.iterateAll().iterator();
     Set<String> datasetNames = new HashSet<>();
+    Map<String, String> datasetLocation = new HashMap<>();
     while (iterator.hasNext()) {
-      datasetNames.add(iterator.next().getDatasetId().getDataset());
+      Dataset dataset = iterator.next();
+      String name = dataset.getDatasetId().getDataset();
+      datasetNames.add(name);
+      datasetLocation.put(name, dataset.getLocation());
     }
     for (String type : PUBLIC_DATASETS) {
       assertTrue(datasetNames.contains(type));
+      assertEquals(PUBLIC_DATASETS_LOCATION.get(type), datasetLocation.get(type));
     }
   }
 
@@ -6759,11 +6778,16 @@ public void testUniverseDomainWithMatchingDomain() {
     Page<Dataset> datasets = bigQuery.listDatasets("bigquery-public-data");
     Iterator<Dataset> iterator = datasets.iterateAll().iterator();
     Set<String> datasetNames = new HashSet<>();
+    Map<String, String> datasetLocation = new HashMap<>();
     while (iterator.hasNext()) {
-      datasetNames.add(iterator.next().getDatasetId().getDataset());
+      Dataset dataset = iterator.next();
+      String name = dataset.getDatasetId().getDataset();
+      datasetNames.add(name);
+      datasetLocation.put(name, dataset.getLocation());
     }
     for (String type : PUBLIC_DATASETS) {
       assertTrue(datasetNames.contains(type));
+      assertEquals(PUBLIC_DATASETS_LOCATION.get(type), datasetLocation.get(type));
     }
   }
 

google-cloud-bigquery/src/test/java/com/google/cloud/bigquery/spi/v2/HttpBigQueryRpcTest.java

@@ -35,13 +35,15 @@ public void testListToDataset() {
             .setId("project-id:dataset-id")
             .setFriendlyName("friendly")
             .setKind("bigquery#dataset")
-            .setLabels(Collections.singletonMap("foo", "bar"));
+            .setLabels(Collections.singletonMap("foo", "bar"))
+            .setLocation("test-region-1");
     Dataset dataset = HttpBigQueryRpc.LIST_TO_DATASET.apply(listDataSet);
 
     assertThat(dataset.getKind()).isEqualTo("bigquery#dataset");
     assertThat(dataset.getId()).isEqualTo("project-id:dataset-id");
     assertThat(dataset.getFriendlyName()).isEqualTo("friendly");
     assertThat(dataset.getDatasetReference()).isEqualTo(datasetRef);
     assertThat(dataset.getLabels()).containsExactly("foo", "bar");
+    assertThat(dataset.getLocation()).isEqualTo("test-region-1");
   }
 }