fix: load jobs preserve ascii control characters configuration (#3876)

* fix: load jobs preserve ascii control characters configuration

* fix lint

* fix NPE

* fix NPE

Author: PhongChuong

google-cloud-bigquery/src/main/java/com/google/cloud/bigquery/LoadJobConfiguration.java

@@ -219,6 +219,7 @@ private Builder(com.google.api.services.bigquery.model.JobConfiguration configur
         this.nullMarker = loadConfigurationPb.getNullMarker();
       }
       if (loadConfigurationPb.getAllowJaggedRows() != null
+          || loadConfigurationPb.getPreserveAsciiControlCharacters() != null
           || loadConfigurationPb.getAllowQuotedNewlines() != null
           || loadConfigurationPb.getEncoding() != null
           || loadConfigurationPb.getFieldDelimiter() != null
@@ -229,6 +230,10 @@ private Builder(com.google.api.services.bigquery.model.JobConfiguration configur
                 .setEncoding(loadConfigurationPb.getEncoding())
                 .setFieldDelimiter(loadConfigurationPb.getFieldDelimiter())
                 .setQuote(loadConfigurationPb.getQuote());
+        if (loadConfigurationPb.getPreserveAsciiControlCharacters() != null) {
+          builder.setPreserveAsciiControlCharacters(
+              loadConfigurationPb.getPreserveAsciiControlCharacters());
+        }
         if (loadConfigurationPb.getAllowJaggedRows() != null) {
           builder.setAllowJaggedRows(loadConfigurationPb.getAllowJaggedRows());
         }
@@ -907,6 +912,7 @@ com.google.api.services.bigquery.model.JobConfiguration toPb() {
           .setAllowJaggedRows(csvOptions.allowJaggedRows())
           .setAllowQuotedNewlines(csvOptions.allowQuotedNewLines())
           .setEncoding(csvOptions.getEncoding())
+          .setPreserveAsciiControlCharacters(csvOptions.getPreserveAsciiControlCharacters())
           .setQuote(csvOptions.getQuote());
       if (csvOptions.getSkipLeadingRows() != null) {
         // todo(mziccard) remove checked cast or comment when #1044 is closed

google-cloud-bigquery/src/test/java/com/google/cloud/bigquery/LoadJobConfigurationTest.java

@@ -38,6 +38,7 @@ public class LoadJobConfigurationTest {
           .setAllowJaggedRows(true)
           .setAllowQuotedNewLines(false)
           .setEncoding(StandardCharsets.UTF_8)
+          .setPreserveAsciiControlCharacters(true)
           .build();
   private static final TableId TABLE_ID = TableId.of("dataset", "table");
   private static final CreateDisposition CREATE_DISPOSITION = CreateDisposition.CREATE_IF_NEEDED;

google-cloud-bigquery/src/test/java/com/google/cloud/bigquery/it/ITBigQueryTest.java

@@ -613,6 +613,7 @@ public class ITBigQueryTest {
   private static final String LOAD_FILE_LARGE = "load_large.csv";
 
   private static final String LOAD_FILE_FLEXIBLE_COLUMN_NAME = "load_flexible_column_name.csv";
+  private static final String LOAD_FILE_NULL = "load_null.csv";
   private static final String JSON_LOAD_FILE = "load.json";
   private static final String JSON_LOAD_FILE_BQ_RESULTSET = "load_bq_resultset.json";
   private static final String JSON_LOAD_FILE_SIMPLE = "load_simple.json";
@@ -628,6 +629,7 @@ public class ITBigQueryTest {
   private static final TableId TABLE_ID_FASTQUERY_BQ_RESULTSET =
       TableId.of(DATASET, "fastquery_testing_bq_resultset");
   private static final String CSV_CONTENT = "StringValue1\nStringValue2\n";
+  private static final String CSV_CONTENT_NULL = "String\0Value1\n";
   private static final String CSV_CONTENT_FLEXIBLE_COLUMN = "name,&ampersand\nrow_name,1";
 
   private static final String JSON_CONTENT =
@@ -1080,6 +1082,9 @@ public static void beforeClass() throws InterruptedException, IOException {
     storage.create(
         BlobInfo.newBuilder(BUCKET, LOAD_FILE).setContentType("text/plain").build(),
         CSV_CONTENT.getBytes(StandardCharsets.UTF_8));
+    storage.create(
+        BlobInfo.newBuilder(BUCKET, LOAD_FILE_NULL).setContentType("text/plain").build(),
+        CSV_CONTENT_NULL.getBytes(StandardCharsets.UTF_8));
     storage.create(
         BlobInfo.newBuilder(BUCKET, LOAD_FILE_FLEXIBLE_COLUMN_NAME)
             .setContentType("text/plain")
@@ -6600,9 +6605,9 @@ public void testLocation() throws Exception {
   }
 
   @Test
-  public void testPreserveAsciiControlCharacters()
+  public void testWriteChannelPreserveAsciiControlCharacters()
       throws InterruptedException, IOException, TimeoutException {
-    String destinationTableName = "test_preserve_ascii_control_characters";
+    String destinationTableName = "test_write_channel_preserve_ascii_control_characters";
     TableId tableId = TableId.of(DATASET, destinationTableName);
     WriteChannelConfiguration configuration =
         WriteChannelConfiguration.newBuilder(tableId)
@@ -6625,6 +6630,26 @@ public void testPreserveAsciiControlCharacters()
     assertTrue(bigquery.delete(tableId));
   }
 
+  @Test
+  public void testLoadJobPreserveAsciiControlCharacters() throws InterruptedException {
+    String destinationTableName = "test_load_job_preserve_ascii_control_characters";
+    TableId destinationTable = TableId.of(DATASET, destinationTableName);
+
+    try {
+      LoadJobConfiguration configuration =
+          LoadJobConfiguration.newBuilder(destinationTable, "gs://" + BUCKET + "/" + LOAD_FILE_NULL)
+              .setFormatOptions(
+                  CsvOptions.newBuilder().setPreserveAsciiControlCharacters(true).build())
+              .setSchema(SIMPLE_SCHEMA)
+              .build();
+      Job remoteLoadJob = bigquery.create(JobInfo.of(configuration));
+      remoteLoadJob = remoteLoadJob.waitFor();
+      assertNull(remoteLoadJob.getStatus().getError());
+    } finally {
+      assertTrue(bigquery.delete(destinationTable));
+    }
+  }
+
   @Test
   public void testReferenceFileSchemaUriForAvro() {
     try {