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docs(samples): add insert data types (#479)
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Praful Makani committed Jun 23, 2020
1 parent 05d47fc commit 12a2bea2c65d80a1c401cb65f3d826eb07fc3037
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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.
*/

package com.example.bigquery;

// [START bigquery_inserting_data_types]
import com.google.cloud.bigquery.BigQuery;
import com.google.cloud.bigquery.BigQueryError;
import com.google.cloud.bigquery.BigQueryException;
import com.google.cloud.bigquery.BigQueryOptions;
import com.google.cloud.bigquery.Field;
import com.google.cloud.bigquery.InsertAllRequest;
import com.google.cloud.bigquery.InsertAllResponse;
import com.google.cloud.bigquery.Schema;
import com.google.cloud.bigquery.StandardSQLTypeName;
import com.google.cloud.bigquery.StandardTableDefinition;
import com.google.cloud.bigquery.TableDefinition;
import com.google.cloud.bigquery.TableId;
import com.google.cloud.bigquery.TableInfo;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

// Sample to insert data types in a table
public class InsertingDataTypes {

public static void runInsertingDataTypes() {
// TODO(developer): Replace these variables before running the sample.
String datasetName = "MY_DATASET_NAME";
String tableName = "MY_TABLE_NAME";

// Inserting data types
Field name = Field.of("name", StandardSQLTypeName.STRING);
Field age = Field.of("age", StandardSQLTypeName.INT64);
Field school =
Field.newBuilder("school", StandardSQLTypeName.BYTES).setMode(Field.Mode.REPEATED).build();
Field location = Field.of("location", StandardSQLTypeName.GEOGRAPHY);
Field measurements =
Field.newBuilder("measurements", StandardSQLTypeName.FLOAT64)
.setMode(Field.Mode.REPEATED)
.build();
Field day = Field.of("day", StandardSQLTypeName.DATE);
Field firstTime = Field.of("firstTime", StandardSQLTypeName.DATETIME);
Field secondTime = Field.of("secondTime", StandardSQLTypeName.TIME);
Field thirdTime = Field.of("thirdTime", StandardSQLTypeName.TIMESTAMP);
Field datesTime =
Field.of("datesTime", StandardSQLTypeName.STRUCT, day, firstTime, secondTime, thirdTime);
Schema schema = Schema.of(name, age, school, location, measurements, datesTime);

// Inserting Sample data
Map<String, Object> datesTimeContent = new HashMap<>();
datesTimeContent.put("day", "2019-1-12");
datesTimeContent.put("firstTime", "2019-02-17 11:24:00.000");
datesTimeContent.put("secondTime", "14:00:00");
datesTimeContent.put("thirdTime", "2020-04-27T18:07:25.356Z");

Map<String, Object> rowContent = new HashMap<>();
rowContent.put("name", "Tom");
rowContent.put("age", 30);
rowContent.put("school", "Test University".getBytes());
rowContent.put("location", "POINT(1 2)");
rowContent.put("measurements", new Float[] {50.05f, 100.5f});
rowContent.put("datesTime", datesTimeContent);

insertingDataTypes(datasetName, tableName, schema, rowContent);
}

public static void insertingDataTypes(
String datasetName, String tableName, Schema schema, Map<String, Object> rowContent) {
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();

TableId tableId = TableId.of(datasetName, tableName);
TableDefinition tableDefinition = StandardTableDefinition.of(schema);
TableInfo tableInfo = TableInfo.newBuilder(tableId, tableDefinition).build();

bigquery.create(tableInfo);

InsertAllResponse response =
bigquery.insertAll(InsertAllRequest.newBuilder(tableId).addRow(rowContent).build());

if (response.hasErrors()) {
// If any of the insertions failed, this lets you inspect the errors
for (Map.Entry<Long, List<BigQueryError>> entry : response.getInsertErrors().entrySet()) {
System.out.println("Response error: \n" + entry.getValue());
}
}
System.out.println("Rows successfully inserted into table");
} catch (BigQueryException e) {
System.out.println("Insert operation not performed \n" + e.toString());
}
}
}
// [END bigquery_inserting_data_types]
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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.
*/

package com.example.bigquery;

import static com.google.common.truth.Truth.assertThat;
import static junit.framework.TestCase.assertNotNull;

import com.google.cloud.bigquery.Field;
import com.google.cloud.bigquery.Schema;
import com.google.cloud.bigquery.StandardSQLTypeName;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import org.junit.After;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;

public class InsertingDataTypesIT {

private String tableName;
private ByteArrayOutputStream bout;
private PrintStream out;

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("BIGQUERY_DATASET_NAME");
}

@Before
public void setUp() {
tableName = "MY_TABLE_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, tableName);
System.setOut(null);
}

@Test
public void testInsertingDataTypes() {
// Inserting data types
Field name = Field.of("name", StandardSQLTypeName.STRING);
Field age = Field.of("age", StandardSQLTypeName.INT64);
Field school =
Field.newBuilder("school", StandardSQLTypeName.BYTES).setMode(Field.Mode.REPEATED).build();
Field location = Field.of("location", StandardSQLTypeName.GEOGRAPHY);
Field measurements =
Field.newBuilder("measurements", StandardSQLTypeName.FLOAT64)
.setMode(Field.Mode.REPEATED)
.build();
Field day = Field.of("day", StandardSQLTypeName.DATE);
Field firstTime = Field.of("firstTime", StandardSQLTypeName.DATETIME);
Field secondTime = Field.of("secondTime", StandardSQLTypeName.TIME);
Field thirdTime = Field.of("thirdTime", StandardSQLTypeName.TIMESTAMP);
Field datesTime =
Field.of("datesTime", StandardSQLTypeName.STRUCT, day, firstTime, secondTime, thirdTime);
Schema schema = Schema.of(name, age, school, location, measurements, datesTime);

// Inserting Sample data
Map<String, Object> datesTimeContent = new HashMap<>();
datesTimeContent.put("day", "2019-1-12");
datesTimeContent.put("firstTime", "2019-02-17 11:24:00.000");
datesTimeContent.put("secondTime", "14:00:00");
datesTimeContent.put("thirdTime", "2020-04-27T18:07:25.356Z");

Map<String, Object> rowContent = new HashMap<>();
rowContent.put("name", "Tom");
rowContent.put("age", 30);
rowContent.put("school", "Test University".getBytes());
rowContent.put("location", "POINT(1 2)");
rowContent.put("measurements", new Float[] {50.05f, 100.5f});
rowContent.put("datesTime", datesTimeContent);

InsertingDataTypes.insertingDataTypes(BIGQUERY_DATASET_NAME, tableName, schema, rowContent);
assertThat(bout.toString()).contains("Rows successfully inserted into table");
}
}

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