bq_update_dataset_expiration sample (GoogleCloudPlatform#1783)

stephaniewang526 · web-flow · commit baf20c4128c0 · 2019-12-04T11:14:33.000-05:00
* bq_update_dataset_expiration sample

* update sample according to comments
diff --git a/bigquery/cloud-client/src/main/java/com/example/bigquery/UpdateDatasetExpiration.java b/bigquery/cloud-client/src/main/java/com/example/bigquery/UpdateDatasetExpiration.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://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.
+ */
+
+package com.example.bigquery;
+
+// [START bigquery_update_dataset_expiration]
+import com.google.cloud.bigquery.BigQuery;
+import com.google.cloud.bigquery.BigQueryException;
+import com.google.cloud.bigquery.BigQueryOptions;
+import com.google.cloud.bigquery.Dataset;
+import java.util.concurrent.TimeUnit;
+
+public class UpdateDatasetExpiration {
+
+  public static void runUpdateDatasetExpiration() {
+    // TODO(developer): Replace these variables before running the sample.
+    String datasetName = "my-dataset-name";
+    updateDatasetExpiration(datasetName);
+  }
+
+  public static void updateDatasetExpiration(String datasetName) {
+    // Initialize client that will be used to send requests. This client only needs to be created
+    // once, and can be reused for multiple requests.
+    BigQuery bigquery = BigQueryOptions.getDefaultInstance().getService();
+
+    Dataset dataset = bigquery.getDataset(datasetName);
+
+    // Update dataset expiration to one day
+    Long newExpiration = TimeUnit.MILLISECONDS.convert(1, TimeUnit.DAYS);
+    try {
+      bigquery.update(dataset.toBuilder().setDefaultTableLifetime(newExpiration).build());
+      System.out.println("Dataset description updated successfully to " + newExpiration);
+    } catch (BigQueryException e) {
+      System.out.println("Dataset expiration was not updated \n" + e.toString());
+    }
+  }
+}
+// [END bigquery_update_dataset_expiration]
diff --git a/bigquery/cloud-client/src/test/java/com/example/bigquery/UpdateDatasetExpirationIT.java b/bigquery/cloud-client/src/test/java/com/example/bigquery/UpdateDatasetExpirationIT.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://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.
+ */
+
+package com.example.bigquery;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import com.google.cloud.bigquery.testing.RemoteBigQueryHelper;
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+public class UpdateDatasetExpirationIT {
+  private ByteArrayOutputStream bout;
+  private PrintStream out;
+
+  @Before
+  public void setUp() throws Exception {
+    bout = new ByteArrayOutputStream();
+    out = new PrintStream(bout);
+    System.setOut(out);
+  }
+
+  @After
+  public void tearDown() {
+    System.setOut(null);
+  }
+
+  @Test
+  public void updateDatasetExpiration() {
+    String generatedDatasetName = RemoteBigQueryHelper.generateDatasetName();
+    // Create a dataset in order to modify its expiration
+    CreateDataset.createDataset(generatedDatasetName);
+
+    // Modify dataset's expiration
+    UpdateDatasetExpiration.updateDatasetExpiration(generatedDatasetName);
+    assertThat(bout.toString()).contains("Dataset description updated successfully");
+  }
+}
