diff --git a/samples/src/main/java/com/example/bigquery/DeleteTable.java b/samples/src/main/java/com/example/bigquery/DeleteTable.java new file mode 100644 index 000000000..39bbd9710 --- /dev/null +++ b/samples/src/main/java/com/example/bigquery/DeleteTable.java @@ -0,0 +1,50 @@ +/* + * 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_delete_table] +import com.google.cloud.bigquery.BigQuery; +import com.google.cloud.bigquery.BigQueryException; +import com.google.cloud.bigquery.BigQueryOptions; +import com.google.cloud.bigquery.TableId; + +public class DeleteTable { + + public static void runDeleteTable() { + // TODO(developer): Replace these variables before running the sample. + String datasetName = "MY_DATASET_NAME"; + String tableName = "MY_TABLE_NAME"; + deleteTable(datasetName, tableName); + } + + public static void deleteTable(String datasetName, String tableName) { + 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(); + boolean success = bigquery.delete(TableId.of(datasetName, tableName)); + if (success) { + System.out.println("Table deleted successfully"); + } else { + System.out.println("Table was not found"); + } + } catch (BigQueryException e) { + System.out.println("Table was not deleted. \n" + e.toString()); + } + } +} +// [END bigquery_delete_table] diff --git a/samples/src/test/java/com/example/bigquery/CopyMultipleTablesIT.java b/samples/src/test/java/com/example/bigquery/CopyMultipleTablesIT.java index b4d6e4be1..f78e3ff81 100644 --- a/samples/src/test/java/com/example/bigquery/CopyMultipleTablesIT.java +++ b/samples/src/test/java/com/example/bigquery/CopyMultipleTablesIT.java @@ -69,5 +69,8 @@ public void testCopyMultipleTables() { CopyMultipleTables.copyMultipleTables(BIGQUERY_DATASET_NAME, generatedTableName); assertThat(bout.toString()).contains("Table copied successfully."); + + //Clean up + DeleteTable.deleteTable(BIGQUERY_DATASET_NAME, generatedTableName); } } diff --git a/samples/src/test/java/com/example/bigquery/DeleteTableIT.java b/samples/src/test/java/com/example/bigquery/DeleteTableIT.java new file mode 100644 index 000000000..56bfd4012 --- /dev/null +++ b/samples/src/test/java/com/example/bigquery/DeleteTableIT.java @@ -0,0 +1,71 @@ +/* + * 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 DeleteTableIT { + private ByteArrayOutputStream bout; + private PrintStream out; + + private static final String BIGQUERY_DATASET_NAME = System.getenv("BIGQUERY_DATASET_NAME"); + + private static void requireEnvVar(String varName) { + assertNotNull( + "Environment variable " + varName + " is required to perform these tests.", + System.getenv(varName)); + } + + @BeforeClass + public static void checkRequirements() { + requireEnvVar("BIGQUERY_DATASET_NAME"); + } + + @Before + public void setUp() { + bout = new ByteArrayOutputStream(); + out = new PrintStream(bout); + System.setOut(out); + } + + @After + public void tearDown() { + System.setOut(null); + } + + @Test + public void testDeleteTable() { + // Create a new table to be deleted + String generatedTableName = + "gcloud_test_table_temp_" + UUID.randomUUID().toString().replace('-', '_'); + CreateTable.createTable(BIGQUERY_DATASET_NAME, generatedTableName, null); + + // Delete the table that was just created + DeleteTable.deleteTable(BIGQUERY_DATASET_NAME, generatedTableName); + + assertThat(bout.toString()).contains("Table deleted successfully"); + } +}