docs(samples): add omni create aws dataset (#821)

Author: Praful Makani

samples/snippets/src/main/java/com/example/bigquery/CreateDatasetAws.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2020 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_omni_create_dataset]
+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 com.google.cloud.bigquery.DatasetInfo;
+
+// Sample to create a aws dataset
+public class CreateDatasetAws {
+
+  public static void main(String[] args) {
+    // TODO(developer): Replace these variables before running the sample.
+    String datasetName = "MY_DATASET_NAME";
+    // Note: As of now location only supports aws-us-east-1
+    String location = "aws-us-east-1";
+    createDatasetAws(datasetName, location);
+  }
+
+  public static void createDatasetAws(String datasetName, String location) {
+    try {
+      // 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();
+
+      DatasetInfo datasetInfo = DatasetInfo.newBuilder(datasetName).setLocation(location).build();
+
+      Dataset dataset = bigquery.create(datasetInfo);
+      System.out.println(
+          "Aws dataset created successfully :" + dataset.getDatasetId().getDataset());
+    } catch (BigQueryException e) {
+      System.out.println("Aws dataset was not created. \n" + e.toString());
+    }
+  }
+}
+// [END bigquery_omni_create_dataset]

samples/snippets/src/test/java/com/example/bigquery/CreateDatasetAwsIT.java

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+/*
+ * Copyright 2020 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 java.util.UUID;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+public class CreateDatasetAwsIT {
+
+  private static final String ID = UUID.randomUUID().toString().substring(0, 8);
+  private static final String LOCATION = "aws-us-east-1";
+  private final Logger log = Logger.getLogger(this.getClass().getName());
+  private String datasetName;
+  private ByteArrayOutputStream bout;
+  private PrintStream out;
+  private PrintStream originalPrintStream;
+
+  private static final String GOOGLE_CLOUD_PROJECT = requireEnvVar("OMNI_PROJECT_ID");
+
+  private static String requireEnvVar(String varName) {
+    String value = System.getenv(varName);
+    assertNotNull(
+        "Environment variable " + varName + " is required to perform these tests.",
+        System.getenv(varName));
+    return value;
+  }
+
+  @BeforeClass
+  public static void checkRequirements() {
+    requireEnvVar("GOOGLE_CLOUD_PROJECT");
+  }
+
+  @Before
+  public void setUp() {
+    datasetName = "CREATE_DATASET_AWS_TEST_" + ID;
+    bout = new ByteArrayOutputStream();
+    out = new PrintStream(bout);
+    originalPrintStream = System.out;
+    System.setOut(out);
+  }
+
+  @After
+  public void tearDown() {
+    // Clean up
+    DeleteDataset.deleteDataset(GOOGLE_CLOUD_PROJECT, datasetName);
+    // restores print statements in the original method
+    System.out.flush();
+    System.setOut(originalPrintStream);
+    log.log(Level.INFO, bout.toString());
+  }
+
+  @Test
+  public void testCreateDatasetAws() {
+    CreateDatasetAws.createDatasetAws(datasetName, LOCATION);
+    assertThat(bout.toString()).contains("Aws dataset created successfully :");
+  }
+}