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docs(samples): add update dataset partition expiration (#612)
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Praful Makani
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samples/snippets/src/main/java/com/example/bigquery/UpdateDatasetPartitionExpiration.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. | ||
*/ | ||
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package com.example.bigquery; | ||
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// [START bigquery_update_dataset_partition_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; | ||
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// Sample to update partition expiration on a dataset. | ||
public class UpdateDatasetPartitionExpiration { | ||
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public static void runUpdateDatasetPartitionExpiration() { | ||
// TODO(developer): Replace these variables before running the sample. | ||
String datasetName = "MY_DATASET_NAME"; | ||
// Set the default partition expiration (applies to new tables, only) in | ||
// milliseconds. This example sets the default expiration to 90 days. | ||
Long newExpiration = TimeUnit.MILLISECONDS.convert(90, TimeUnit.DAYS); | ||
updateDatasetPartitionExpiration(datasetName, newExpiration); | ||
} | ||
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public static void updateDatasetPartitionExpiration(String datasetName, Long newExpiration) { | ||
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(); | ||
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Dataset dataset = bigquery.getDataset(datasetName); | ||
bigquery.update(dataset.toBuilder().setDefaultPartitionExpirationMs(newExpiration).build()); | ||
System.out.println( | ||
"Dataset default partition expiration updated successfully to " + newExpiration); | ||
} catch (BigQueryException e) { | ||
System.out.println("Dataset partition expiration was not updated \n" + e.toString()); | ||
} | ||
} | ||
} | ||
// [END bigquery_update_dataset_partition_expiration] |
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samples/snippets/src/test/java/com/example/bigquery/UpdateDatasetPartitionExpirationIT.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. | ||
*/ | ||
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package com.example.bigquery; | ||
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import static com.google.common.truth.Truth.assertThat; | ||
import static junit.framework.TestCase.assertNotNull; | ||
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import com.google.cloud.bigquery.testing.RemoteBigQueryHelper; | ||
import java.io.ByteArrayOutputStream; | ||
import java.io.PrintStream; | ||
import java.util.concurrent.TimeUnit; | ||
import org.junit.After; | ||
import org.junit.Before; | ||
import org.junit.BeforeClass; | ||
import org.junit.Test; | ||
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public class UpdateDatasetPartitionExpirationIT { | ||
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private String datasetName; | ||
private ByteArrayOutputStream bout; | ||
private PrintStream out; | ||
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private static final String GOOGLE_CLOUD_PROJECT = requireEnvVar("GOOGLE_CLOUD_PROJECT"); | ||
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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; | ||
} | ||
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@BeforeClass | ||
public static void checkRequirements() { | ||
requireEnvVar("GOOGLE_CLOUD_PROJECT"); | ||
} | ||
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@Before | ||
public void setUp() { | ||
bout = new ByteArrayOutputStream(); | ||
out = new PrintStream(bout); | ||
System.setOut(out); | ||
datasetName = RemoteBigQueryHelper.generateDatasetName(); | ||
// Create a dataset in order to modify its partition expiration | ||
CreateDataset.createDataset(datasetName); | ||
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bout = new ByteArrayOutputStream(); | ||
out = new PrintStream(bout); | ||
System.setOut(out); | ||
} | ||
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@After | ||
public void tearDown() { | ||
// Clean up | ||
DeleteDataset.deleteDataset(GOOGLE_CLOUD_PROJECT, datasetName); | ||
System.setOut(null); | ||
} | ||
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@Test | ||
public void testUpdateDatasetPartitionExpiration() { | ||
Long newExpiration = TimeUnit.MILLISECONDS.convert(90, TimeUnit.DAYS); | ||
UpdateDatasetPartitionExpiration.updateDatasetPartitionExpiration(datasetName, newExpiration); | ||
assertThat(bout.toString()) | ||
.contains("Dataset default partition expiration updated successfully"); | ||
} | ||
} |