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docs(samples): add list jobs (#554)
* docs(samples): add list jobs

* docs(samples): update code
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Praful Makani committed Jul 15, 2020
1 parent a0d7bea commit b87cecff3f41339b20382b26381c38c4d7150305
Showing with 112 additions and 0 deletions.
  1. +50 −0 samples/snippets/src/main/java/com/example/bigquery/ListJobs.java
  2. +62 −0 samples/snippets/src/test/java/com/example/bigquery/ListJobsIT.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_list_jobs]
import com.google.api.gax.paging.Page;
import com.google.cloud.bigquery.BigQuery;
import com.google.cloud.bigquery.BigQueryException;
import com.google.cloud.bigquery.BigQueryOptions;
import com.google.cloud.bigquery.Job;

// Sample to get list of jobs
public class ListJobs {

public static void runListJobs() {
listJobs();
}

public static void listJobs() {
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();

Page<Job> jobs = bigquery.listJobs(BigQuery.JobListOption.pageSize(10));
if (jobs == null) {
System.out.println("Dataset does not contain any jobs.");
return;
}
jobs.getValues().forEach(job -> System.out.printf("Success! Job ID: %s", job.getJobId()));
} catch (BigQueryException e) {
System.out.println("Jobs not listed in dataset due to error: \n" + e.toString());
}
}
}
// [END bigquery_list_jobs]
@@ -0,0 +1,62 @@
/*
* 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 java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class ListJobsIT {

private ByteArrayOutputStream bout;
private PrintStream out;

@Before
public void setUp() {
bout = new ByteArrayOutputStream();
out = new PrintStream(bout);
System.setOut(out);

// Create a new job
String query =
"SELECT name"
+ " FROM `bigquery-public-data.usa_names.usa_1910_2013`"
+ " WHERE state = 'TX'"
+ " LIMIT 100;";
CreateJob.createJob(query);

bout = new ByteArrayOutputStream();
out = new PrintStream(bout);
System.setOut(out);
}

@After
public void tearDown() {
// Clean up
System.setOut(null);
}

@Test
public void testListJobs() {
ListJobs.listJobs();
assertThat(bout.toString()).contains("Success! Job ID");
}
}

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