Fix: accept default stream name (#2432)

* Fix: accept default stream name

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: agrawal-siddharth

README.md

@@ -50,7 +50,7 @@ If you are using Maven without the BOM, add this to your dependencies:
 If you are using Gradle 5.x or later, add this to your dependencies:
 
 ```Groovy
-implementation platform('com.google.cloud:libraries-bom:26.33.0')
+implementation platform('com.google.cloud:libraries-bom:26.34.0')
 
 implementation 'com.google.cloud:google-cloud-bigquerystorage'
 ```

google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/Exceptions.java

@@ -150,6 +150,9 @@ private static StorageError toStorageError(com.google.rpc.Status rpcStatus) {
   @Nullable
   public static StorageException toStorageException(
       com.google.rpc.Status rpcStatus, Throwable exception) {
+    if (rpcStatus == null) {
+      return null;
+    }
     StorageError error = toStorageError(rpcStatus);
     Status grpcStatus =
         Status.fromCodeValue(rpcStatus.getCode()).withDescription(rpcStatus.getMessage());

google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/SchemaAwareStreamWriter.java

@@ -467,6 +467,8 @@ private Builder(
 
         if (!tableMatcher.matches() && !defaultStreamMatcher.matches()) {
           throw new IllegalArgumentException("Invalid  name: " + streamOrTableName);
+        } else if (!tableMatcher.matches() && defaultStreamMatcher.matches()) {
+          this.streamName = streamOrTableName;
         } else {
           this.streamName = streamOrTableName + "/_default";
         }

google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/JsonStreamWriterTest.java

@@ -72,6 +72,7 @@ public class JsonStreamWriterTest {
   private static final String TEST_STREAM = "projects/p/datasets/d/tables/t/streams/_default";
   private static final String TEST_STREAM_2 = "projects/p/datasets/d2/tables/t2/streams/_default";
   private static final String TEST_TABLE = "projects/p/datasets/d/tables/t";
+  private static final String TEST_TABLE_DEFAULT = "projects/p/datasets/d/tables/t/_default";
   private static LocalChannelProvider channelProvider;
   private FakeScheduledExecutorService fakeExecutor;
   private FakeBigQueryWrite testBigQueryWrite;
@@ -198,6 +199,14 @@ public void testTwoParamNewBuilder()
     assertEquals(TEST_STREAM, writer.getStreamName());
   }
 
+  @Test
+  public void testConstructWriterUsingDefaultStreamName()
+      throws DescriptorValidationException, IOException, InterruptedException {
+    JsonStreamWriter writer =
+        getTestJsonStreamWriterBuilder(TEST_TABLE_DEFAULT, TABLE_SCHEMA).build();
+    assertEquals(TEST_TABLE_DEFAULT, writer.getStreamName());
+  }
+
   @Test
   public void testSingleAppendSimpleJson() throws Exception {
     FooType expectedProto = FooType.newBuilder().setFoo("allen").build();