docs(samples): add insert data types (#479)

googleapis · Jun 23, 2020 · 12a2bea · 12a2bea
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diff --git a/samples/snippets/src/main/java/com/example/bigquery/InsertingDataTypes.java b/samples/snippets/src/main/java/com/example/bigquery/InsertingDataTypes.java
@@ -0,0 +1,109 @@
+/*
+ * 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]
diff --git a/samples/snippets/src/test/java/com/example/bigquery/InsertingDataTypesIT.java b/samples/snippets/src/test/java/com/example/bigquery/InsertingDataTypesIT.java
@@ -0,0 +1,109 @@
+/*
+ * 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");
+  }
+}