feat: bug fix for checking write_stream field but proto might not con…

…tain the field to unblock the release (#1806)

* feat: Split writer into connection worker and wrapper, this is a
prerequisite for multiplexing client

* feat: add connection worker pool skeleton, used for multiplexing client

* feat: add Load api for connection worker for multiplexing client

* feat: add multiplexing support to connection worker. We will treat every
new stream name as a switch of destinationt

* 🦉 Updates from OwlBot post-processor

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

* Updates from OwlBot post-processor

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

* 🦉 Updates from OwlBot post-processor

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

* feat: port the multiplexing client core algorithm and basic tests
also fixed a tiny bug inside fake bigquery write impl for getting thre
response from offset

* 🦉 Updates from OwlBot post-processor

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

* feat: wire multiplexing connection pool to stream writer

* feat: some fixes for multiplexing client

* feat: fix some todos, and reject the mixed behavior of passed in client or not

* feat: fix the bug that we may peek into the write_stream field but it's
possible the proto schema does not contain this field

* 🦉 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>

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

@@ -586,13 +586,18 @@ private void cleanupInflightRequests() {
   }
 
   private void requestCallback(AppendRowsResponse response) {
-    log.fine(
-        "Got response on stream '"
-            + response.getWriteStream()
-            + "' "
-            + (response.hasError()
-                ? "error: " + response.getError()
-                : "offset: " + response.getAppendResult().getOffset().getValue()));
+    if (!response.hasUpdatedSchema()) {
+      log.fine(String.format("Got response on stream %s", response.toString()));
+    } else {
+      AppendRowsResponse responseWithUpdatedSchemaRemoved =
+          response.toBuilder().clearUpdatedSchema().build();
+
+      log.fine(
+          String.format(
+              "Got response with schema updated (omitting updated schema in response here): %s",
+              responseWithUpdatedSchemaRemoved.toString()));
+    }
+
     AppendRequestAndResponse requestWrapper;
     this.lock.lock();
     if (response.hasUpdatedSchema()) {