Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
docs(samples): add create routine ddl (#495)
- Loading branch information
Praful Makani
committed
Jul 1, 2020
1 parent
053ca07
commit f955408
Showing
2 changed files
with
136 additions
and
0 deletions.
There are no files selected for viewing
69 changes: 69 additions & 0 deletions
69
samples/snippets/src/main/java/com/example/bigquery/CreateRoutineDDL.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,69 @@ | ||
/* | ||
* 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_create_routine_ddl] | ||
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 routine using DDL | ||
public class CreateRoutineDDL { | ||
|
||
public static void runCreateRoutineDDL() { | ||
// TODO(developer): Replace these variables before running the sample. | ||
String projectId = "MY_PROJECT_ID"; | ||
String datasetId = "MY_DATASET_ID"; | ||
String routineId = "MY_ROUTINE_ID"; | ||
String sql = | ||
"CREATE FUNCTION " | ||
+ "`" | ||
+ projectId | ||
+ "." | ||
+ datasetId | ||
+ "." | ||
+ routineId | ||
+ "`" | ||
+ "( arr ARRAY<STRUCT<name STRING, val INT64>>) AS ( (SELECT SUM(IF(elem.name = \"foo\",elem.val,null)) FROM UNNEST(arr) AS elem))"; | ||
createRoutineDDL(sql); | ||
} | ||
|
||
public static void createRoutineDDL(String sql) { | ||
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(sql).build(); | ||
|
||
// create a routine 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("Routine created successfully"); | ||
} else { | ||
System.out.println("Routine was not created"); | ||
} | ||
} catch (BigQueryException | InterruptedException e) { | ||
System.out.println("Routine was not created. \n" + e.toString()); | ||
} | ||
} | ||
} | ||
// [END bigquery_create_routine_ddl] |
67 changes: 67 additions & 0 deletions
67
samples/snippets/src/test/java/com/example/bigquery/CreateRoutineDDLIT.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,67 @@ | ||
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 CreateRoutineDDLIT { | ||
|
||
private String routineName; | ||
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() { | ||
routineName = "MY_ROUTINE_NAME_TEST_" + UUID.randomUUID().toString().substring(0, 8); | ||
bout = new ByteArrayOutputStream(); | ||
out = new PrintStream(bout); | ||
System.setOut(out); | ||
} | ||
|
||
@After | ||
public void tearDown() { | ||
// Clean up | ||
DeleteRoutine.deleteRoutine(BIGQUERY_DATASET_NAME, routineName); | ||
System.setOut(null); | ||
} | ||
|
||
@Test | ||
public void testCreateRoutineDDL() { | ||
String sql = | ||
"CREATE FUNCTION " | ||
+ "`" | ||
+ PROJECT_ID | ||
+ "." | ||
+ BIGQUERY_DATASET_NAME | ||
+ "." | ||
+ routineName | ||
+ "`" | ||
+ "( arr ARRAY<STRUCT<name STRING, val INT64>>) AS ( (SELECT SUM(IF(elem.name = \"foo\",elem.val,null)) FROM UNNEST(arr) AS elem))"; | ||
CreateRoutineDDL.createRoutineDDL(sql); | ||
assertThat(bout.toString()).contains("Routine created successfully"); | ||
} | ||
} |