feat: add samples

samples/src/main/java/com/example/bigquery/CreateTable.java

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+package com.example.bigquery;
+
+// [START bigquery_create_table]
+import com.google.cloud.bigquery.BigQuery;
+import com.google.cloud.bigquery.BigQueryException;
+import com.google.cloud.bigquery.BigQueryOptions;
+import com.google.cloud.bigquery.Field;
+import com.google.cloud.bigquery.LegacySQLTypeName;
+import com.google.cloud.bigquery.Schema;
+import com.google.cloud.bigquery.StandardTableDefinition;
+import com.google.cloud.bigquery.TableDefinition;
+import com.google.cloud.bigquery.TableId;
+import com.google.cloud.bigquery.TableInfo;
+
+public class CreateTable {
+
+ public static void runCreateTable() {
+ // TODO(developer): Replace these variables before running the sample.
+ String datasetName = "my-dataset-name";
+ String tableName = "my_table_name";
+ Schema schema =
+ Schema.of(
+ // LegacySQLTypeName will be updated to StandardSQLTypeName once release rolls out
+ Field.of("stringField", LegacySQLTypeName.STRING),
+ Field.of("booleanField", LegacySQLTypeName.BOOLEAN));
+ createTable(datasetName, tableName, schema);
+ }
+
+ public static void createTable(String datasetName, String tableName, Schema schema) {
+ // 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();
+
+ try {
+ bigquery.create(tableInfo);
+ System.out.println("Table created successfully");
+ } catch (BigQueryException e) {
+ System.out.println("Table was not created. \n" + e.toString());
+ }
+ }
+}
+// [END bigquery_create_table]

samples/src/main/java/com/example/bigquery/ExtractTableToJSON.java

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+package com.example.bigquery;
+
+// [START bigquery_extract_table]
+import com.google.cloud.bigquery.BigQueryException;
+import com.google.cloud.bigquery.Table;
+
+public class ExtractTableToJSON {
+
+ public static void runExtractTableToJSON() {
+ // TODO(developer): Replace these variables before running the sample.
+ Table table = null;
+ String format = "CSV";
+ String bucketName = "my-bucket";
+ String gcsFileName = "gs://" + bucketName + "/extractTest.csv";
+ extractTableToJSON(table, format, gcsFileName);
+ }
+
+ // Exports my-dataset-name:my_table to gcs://my-bucket/my-file as raw CSV
+ public static void extractTableToJSON(Table table, String format, String gcsFileName) {
+
+ try {
+ table.extract(format, gcsFileName);
+ System.out.println("Table extraction job completed successfully");
+ } catch (BigQueryException e) {
+ System.out.println("Table extraction job was interrupted. \n" + e.toString());
+ }
+ }
+}
+// [END bigquery_extract_table]

samples/src/test/java/com/example/bigquery/CreateTableIT.java

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+package com.example.bigquery;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import com.google.cloud.bigquery.Field;
+import com.google.cloud.bigquery.LegacySQLTypeName;
+import com.google.cloud.bigquery.Schema;
+import com.google.cloud.bigquery.testing.RemoteBigQueryHelper;
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+public class CreateTableIT {
+ private ByteArrayOutputStream bout;
+ private PrintStream out;
+
+ @Before
+ public void setUp() {
+ bout = new ByteArrayOutputStream();
+ out = new PrintStream(bout);
+ System.setOut(out);
+ }
+
+ @After
+ public void tearDown() {
+ System.setOut(null);
+ }
+
+ @Test
+ public void testCreateTable() {
+ String generatedDatasetName = RemoteBigQueryHelper.generateDatasetName();
+
+ // Create a new dataset to create a table in
+ CreateDataset.createDataset(generatedDatasetName);
+
+ // Create an empty table with specific schema in the dataset just created
+ String tableName = "my_table_name";
+ Schema schema =
+ Schema.of(
+ Field.of("stringField", LegacySQLTypeName.STRING),
+ Field.of("booleanField", LegacySQLTypeName.BOOLEAN));
+ CreateTable.createTable(generatedDatasetName, tableName, schema);
+
+ assertThat(bout.toString()).contains("Table created successfully");
+ }
+}

samples/src/test/java/com/example/bigquery/ExtractTableToJSONIT.java

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+package com.example.bigquery;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import com.google.cloud.bigquery.BigQuery;
+import com.google.cloud.bigquery.BigQueryException;
+import com.google.cloud.bigquery.BigQueryOptions;
+import com.google.cloud.bigquery.Field;
+import com.google.cloud.bigquery.LegacySQLTypeName;
+import com.google.cloud.bigquery.Schema;
+import com.google.cloud.bigquery.StandardTableDefinition;
+import com.google.cloud.bigquery.Table;
+import com.google.cloud.bigquery.TableDefinition;
+import com.google.cloud.bigquery.TableId;
+import com.google.cloud.bigquery.TableInfo;
+import com.google.cloud.bigquery.testing.RemoteBigQueryHelper;
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+public class ExtractTableToJSONIT {
+ private ByteArrayOutputStream bout;
+ private PrintStream out;
+
+ @Before
+ public void setUp() throws Exception {
+ bout = new ByteArrayOutputStream();
+ out = new PrintStream(bout);
+ System.setOut(out);
+ }
+
+ @After
+ public void tearDown() {
+ System.setOut(null);
+ }
+
+ @Test
+ public void testExtractTableToJSON() {
+ String generatedDatasetName = RemoteBigQueryHelper.generateDatasetName();
+
+ // Create a new dataset to create a new table in
+ CreateDataset.createDataset(generatedDatasetName);
+
+ // Create a new table to extract to GCS for
+ String tableName = "my_table_name";
+ Schema schema =
+ Schema.of(
+ Field.of("stringField", LegacySQLTypeName.STRING),
+ Field.of("booleanField", LegacySQLTypeName.BOOLEAN));
+ Table table = createTableHelper(generatedDatasetName, tableName, schema);
+
+ // Extract table content to GCS in CSV format
+ ExtractTableToJSON.extractTableToJSON(table, "CSV", "gs://my-bucket/extractTest.csv");
+ assertThat(bout.toString()).contains("Table extraction job completed successfully");
+ }
+
+ private static Table createTableHelper(String datasetName, String tableName, Schema schema) {
+ // 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();
+
+ try {
+ Table table = bigquery.create(tableInfo);
+ return table;
+ } catch (BigQueryException e) {
+ System.out.println("Table was not created. \n" + e.toString());
+ return null;
+ }
+ }
+}