feat: update samples

samples/src/main/java/com/example/bigquery/CreateDataset.java

@@ -27,7 +27,7 @@ public class CreateDataset {
 
   public static void runCreateDataset() {
     // TODO(developer): Replace these variables before running the sample.
-    String datasetName = "my-dataset-name";
+    String datasetName = "MY_DATASET_NAME";
     createDataset(datasetName);
   }
 

samples/src/main/java/com/example/bigquery/CreateTable.java

@@ -1,3 +1,19 @@
+/*
+ * 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_create_table]
@@ -16,11 +32,11 @@ public class CreateTable {
 
   public static void runCreateTable() {
     // TODO(developer): Replace these variables before running the sample.
-    String datasetName = "my-dataset-name";
-    String tableName = "my_table_name";
+    String datasetName = "MY_DATASET_NAME";
+    String tableName = "MY_TABLE_NAME";
     Schema schema =
         Schema.of(
-            // LegacySQLTypeName will be updated to StandardSQLTypeName once release rolls out
+            // INFO: LegacySQLTypeName will be updated to StandardSQLTypeName in release 1.103.0
             Field.of("stringField", LegacySQLTypeName.STRING),
             Field.of("booleanField", LegacySQLTypeName.BOOLEAN));
     createTable(datasetName, tableName, schema);

samples/src/main/java/com/example/bigquery/DeleteDataset.java

@@ -26,8 +26,8 @@ public class DeleteDataset {
 
   public static void runDeleteDataset() {
     // TODO(developer): Replace these variables before running the sample.\
-    String projectId = "my-project-id";
-    String datasetName = "my-dataset-name";
+    String projectId = "MY_PROJECT_ID";
+    String datasetName = "MY_DATASET_NAME";
     deleteDataset(projectId, datasetName);
   }
 

samples/src/main/java/com/example/bigquery/ExtractTableToJson.java

@@ -0,0 +1,71 @@
+/*
+ * 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_extract_table]
+import com.google.cloud.bigquery.BigQuery;
+import com.google.cloud.bigquery.BigQueryException;
+import com.google.cloud.bigquery.BigQueryOptions;
+import com.google.cloud.bigquery.Job;
+import com.google.cloud.bigquery.Table;
+import com.google.cloud.bigquery.TableId;
+
+public class ExtractTableToJson {
+
+  public static void runExtractTableToJson() {
+    // TODO(developer): Replace these variables before running the sample.
+    String projectId = "bigquery-public-data";
+    String datasetName = "samples";
+    String tableName = "shakespeare";
+    String bucketName = "my-bucket";
+    String destinationUri = "gs://" + bucketName + "/path/to/file";
+    extractTableToJson(projectId, datasetName, tableName, destinationUri);
+  }
+
+  // Exports datasetName:tableName to destinationUri as raw CSV
+  public static void extractTableToJson(
+      String projectId, String datasetName, String tableName, String destinationUri) {
+    // 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();
+
+    TableId tableId = TableId.of(projectId, datasetName, tableName);
+    Table table = bigquery.getTable(tableId);
+
+    // For more information on export formats available see:
+    // https://cloud.google.com/bigquery/docs/exporting-data#export_formats_and_compression_types
+    // For more information on Job see:
+    // https://googleapis.dev/java/google-cloud-clients/latest/index.html?com/google/cloud/bigquery/package-summary.html
+    Job job = table.extract("CSV", destinationUri);
+    try {
+      // Blocks until this job completes its execution, either failing or succeeding.
+      Job completedJob = job.waitFor();
+      if (completedJob == null) {
+        System.out.println("Job not executed since it no longer exists.");
+        return;
+      } else if (completedJob.getStatus().getError() != null) {
+        System.out.println(
+            "BigQuery was unable to extract due to an error: \n" + job.getStatus().getError());
+        return;
+      }
+      System.out.println("Table export successful. Check in GCS bucket for the CSV file.");
+    } catch (BigQueryException | InterruptedException e) {
+      System.out.println("Table extraction job was interrupted. \n" + e.toString());
+    }
+  }
+}
+// [END bigquery_extract_table]

samples/src/main/java/com/example/bigquery/ListDatasets.java

@@ -28,7 +28,7 @@ public class ListDatasets {
 
   public static void runListDatasets() {
     // TODO(developer): Replace these variables before running the sample.
-    String projectId = "my-project-id";
+    String projectId = "MY_PROJECT_ID";
     listDatasets(projectId);
   }
 

samples/src/main/java/com/example/bigquery/UpdateDatasetAccess.java

@@ -30,7 +30,7 @@ public class UpdateDatasetAccess {
 
   public static void runUpdateDatasetAccess() {
     // TODO(developer): Replace these variables before running the sample.
-    String datasetName = "my-dataset-name";
+    String datasetName = "MY_DATASET_NAME";
     updateDatasetAccess(datasetName);
   }
 

samples/src/main/java/com/example/bigquery/UpdateDatasetDescription.java

@@ -26,7 +26,7 @@ public class UpdateDatasetDescription {
 
   public static void runUpdateDatasetDescription() {
     // TODO(developer): Replace these variables before running the sample.
-    String datasetName = "my-dataset-name";
+    String datasetName = "MY_DATASET_NAME";
     String newDescription = "this is the new dataset description";
     updateDatasetDescription(datasetName, newDescription);
   }

samples/src/main/java/com/example/bigquery/UpdateDatasetExpiration.java

@@ -27,7 +27,7 @@ public class UpdateDatasetExpiration {
 
   public static void runUpdateDatasetExpiration() {
     // TODO(developer): Replace these variables before running the sample.
-    String datasetName = "my-dataset-name";
+    String datasetName = "MY_DATASET_NAME";
     updateDatasetExpiration(datasetName);
   }
 

samples/src/test/java/com/example/bigquery/CreateTableIT.java

@@ -1,3 +1,19 @@
+/*
+ * 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;
@@ -36,7 +52,7 @@ public void testCreateTable() {
     CreateDataset.createDataset(generatedDatasetName);
 
     // Create an empty table with specific schema in the dataset just created
-    String tableName = "my_table_name";
+    String tableName = "MY_TABLE_NAME";
     Schema schema =
         Schema.of(
             Field.of("stringField", LegacySQLTypeName.STRING),

samples/src/test/java/com/example/bigquery/ExtractTableToJsonIT.java

@@ -0,0 +1,71 @@
+/*
+ * 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 static junit.framework.TestCase.assertNotNull;
+
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+public class ExtractTableToJsonIT {
+  private ByteArrayOutputStream bout;
+  private PrintStream out;
+
+  private static final String GCS_BUCKET = System.getenv("GCS_BUCKET");
+
+  private static void requireEnvVar(String varName) {
+    assertNotNull(
+        "Environment variable '%s' is required to perform these tests.".format(varName),
+        System.getenv(varName));
+  }
+
+  @BeforeClass
+  public static void checkRequirements() {
+    requireEnvVar("GCS_BUCKET");
+  }
+
+  @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 testExtractTableToJson() {
+    String projectId = "bigquery-public-data";
+    String datasetName = "samples";
+    String tableName = "shakespeare";
+    String destinationUri = "gs://" + GCS_BUCKET + "/extractTest.csv";
+    System.out.println(destinationUri);
+
+    // Extract table content to GCS in CSV format
+    ExtractTableToJson.extractTableToJson(projectId, datasetName, tableName, destinationUri);
+    assertThat(bout.toString())
+        .contains("Table export successful. Check in GCS bucket for the CSV file.");
+  }
+}