diff --git a/samples/snippets/src/main/java/com/example/bigquery/DDLCreateView.java b/samples/snippets/src/main/java/com/example/bigquery/DDLCreateView.java new file mode 100644 index 000000000..89f23fac7 --- /dev/null +++ b/samples/snippets/src/main/java/com/example/bigquery/DDLCreateView.java @@ -0,0 +1,78 @@ +/* + * 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_ddl_create_view] +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.JobInfo; +import com.google.cloud.bigquery.QueryJobConfiguration; + +// Sample to create a view using DDL +public class DDLCreateView { + + public static void runDDLCreateView() { + // TODO(developer): Replace these variables before running the sample. + String projectId = "MY_PROJECT_ID"; + String datasetId = "MY_DATASET_ID"; + String tableId = "MY_VIEW_ID"; + String ddl = + "CREATE VIEW " + + "`" + + projectId + + "." + + datasetId + + "." + + tableId + + "`" + + " OPTIONS(" + + " expiration_timestamp=TIMESTAMP_ADD(" + + " CURRENT_TIMESTAMP(), INTERVAL 48 HOUR)," + + " friendly_name=\"new_view\"," + + " description=\"a view that expires in 2 days\"," + + " labels=[(\"org_unit\", \"development\")]" + + " )" + + " AS SELECT name, state, year, number" + + " FROM `bigquery-public-data.usa_names.usa_1910_current`" + + " WHERE state LIKE 'W%'`"; + ddlCreateView(ddl); + } + + public static void ddlCreateView(String ddl) { + 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(); + + QueryJobConfiguration config = QueryJobConfiguration.newBuilder(ddl).build(); + + // create a view using query and it will wait to complete job. + Job job = bigquery.create(JobInfo.of(config)); + job = job.waitFor(); + if (job.isDone()) { + System.out.println("View created successfully"); + } else { + System.out.println("View was not created"); + } + } catch (BigQueryException | InterruptedException e) { + System.out.println("View was not created. \n" + e.toString()); + } + } +} +// [END bigquery_ddl_create_view] diff --git a/samples/snippets/src/test/java/com/example/bigquery/DDLCreateViewIT.java b/samples/snippets/src/test/java/com/example/bigquery/DDLCreateViewIT.java new file mode 100644 index 000000000..7d6e0dae1 --- /dev/null +++ b/samples/snippets/src/test/java/com/example/bigquery/DDLCreateViewIT.java @@ -0,0 +1,92 @@ +/* + * 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 org.junit.After; +import org.junit.Before; +import org.junit.BeforeClass; +import org.junit.Test; + +public class DDLCreateViewIT { + + private String viewName; + private ByteArrayOutputStream bout; + private PrintStream out; + + private static final String PROJECT_ID = requireEnvVar("GOOGLE_CLOUD_PROJECT"); + private static final String BIGQUERY_DATASET_NAME = requireEnvVar("BIGQUERY_DATASET_NAME"); + + 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"); + requireEnvVar("BIGQUERY_DATASET_NAME"); + } + + @Before + public void setUp() { + viewName = "MY_VIEW_NAME_TEST_" + UUID.randomUUID().toString().substring(0, 8); + bout = new ByteArrayOutputStream(); + out = new PrintStream(bout); + System.setOut(out); + } + + @After + public void tearDown() { + // Clean up + DeleteTable.deleteTable(BIGQUERY_DATASET_NAME, viewName); + System.setOut(null); + } + + @Test + public void testDDLCreateView() { + String sql = + "CREATE VIEW " + + "`" + + PROJECT_ID + + "." + + BIGQUERY_DATASET_NAME + + "." + + viewName + + "`" + + " OPTIONS(" + + " expiration_timestamp=TIMESTAMP_ADD(" + + " CURRENT_TIMESTAMP(), INTERVAL 48 HOUR)," + + " friendly_name=\"new_view\"," + + " description=\"a view that expires in 2 days\"," + + " labels=[(\"org_unit\", \"development\")]" + + " )" + + " AS SELECT name, state, year, number" + + " FROM `bigquery-public-data.usa_names.usa_1910_current`" + + " WHERE state LIKE 'W%'"; + DDLCreateView.ddlCreateView(sql); + assertThat(bout.toString()).contains("View created successfully"); + } +}