fix: remove schema update capability from jsonwriter and delete related tests

google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta2/JsonStreamWriter.java

@@ -36,10 +36,7 @@
 /**
  * A StreamWriter that can write JSON data (JSONObjects) to BigQuery tables. The JsonStreamWriter is
  * built on top of a StreamWriter, and it simply converts all JSON data to protobuf messages then
- * calls StreamWriter's append() method to write to BigQuery tables. It maintains all StreamWriter
- * functions, but also provides an additional feature: schema update support, where if the BigQuery
- * table schema is updated, users will be able to ingest data on the new schema after some time (in
- * order of minutes).
+ * calls StreamWriter's append() method to write to BigQuery tables.
  */
 public class JsonStreamWriter implements AutoCloseable {
   private static String streamPatternString =
@@ -83,8 +80,7 @@ private JsonStreamWriter(Builder builder)
 
   /**
    * Writes a JSONArray that contains JSONObjects to the BigQuery table by first converting the JSON
-   * data to protobuf messages, then using StreamWriter's append() to write the data. If there is a
-   * schema update, the OnSchemaUpdateRunnable will be used to determine what actions to perform.
+   * data to protobuf messages, then using StreamWriter's append() to write the data.
    *
    * @param jsonArr The JSON array that contains JSONObjects to be written
    * @return ApiFuture<AppendRowsResponse> returns an AppendRowsResponse message wrapped in an
@@ -96,8 +92,7 @@ public ApiFuture<AppendRowsResponse> append(JSONArray jsonArr) {
 
   /**
    * Writes a JSONArray that contains JSONObjects to the BigQuery table by first converting the JSON
-   * data to protobuf messages, then using StreamWriter's append() to write the data. If there is a
-   * schema update, the OnSchemaUpdateRunnable will be used to determine what actions to perform.
+   * data to protobuf messages, then using StreamWriter's append() to write the data.
    *
    * @param jsonArr The JSON array that contains JSONObjects to be written
    * @param offset Offset for deduplication
@@ -193,10 +188,6 @@ private void setStreamWriterSettings(
     if (createDefaultStream) {
       streamWriterBuilder.createDefaultStream();
     }
-    JsonStreamWriterOnSchemaUpdateRunnable jsonStreamWriterOnSchemaUpdateRunnable =
-        new JsonStreamWriterOnSchemaUpdateRunnable();
-    jsonStreamWriterOnSchemaUpdateRunnable.setJsonStreamWriter(this);
-    streamWriterBuilder.setOnSchemaUpdateRunnable(jsonStreamWriterOnSchemaUpdateRunnable);
   }
 
   /**
@@ -267,39 +258,6 @@ public void close() {
     this.streamWriter.close();
   }
 
-  private class JsonStreamWriterOnSchemaUpdateRunnable extends OnSchemaUpdateRunnable {
-    private JsonStreamWriter jsonStreamWriter;
-    /**
-     * Setter for the jsonStreamWriter
-     *
-     * @param jsonStreamWriter
-     */
-    public void setJsonStreamWriter(JsonStreamWriter jsonStreamWriter) {
-      this.jsonStreamWriter = jsonStreamWriter;
-    }
-
-    /** Getter for the jsonStreamWriter */
-    public JsonStreamWriter getJsonStreamWriter() {
-      return this.jsonStreamWriter;
-    }
-
-    @Override
-    public void run() {
-      this.getJsonStreamWriter().setTableSchema(this.getUpdatedSchema());
-      try {
-        this.getJsonStreamWriter().refreshConnection();
-      } catch (InterruptedException | IOException e) {
-        LOG.severe("StreamWriter failed to refresh upon schema update." + e);
-        return;
-      } catch (Descriptors.DescriptorValidationException e) {
-        LOG.severe(
-            "Schema update fail: updated schema could not be converted to a valid descriptor.");
-        return;
-      }
-      LOG.info("Successfully updated schema: " + this.getUpdatedSchema());
-    }
-  }
-
   public static final class Builder {
     private String streamOrTableName;
     private BigQueryWriteClient client;

google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta2/OnSchemaUpdateRunnable.java

@@ -19,6 +19,8 @@
  * A abstract class that implements the Runnable interface and provides access to the current
  * StreamWriter and updatedSchema. This runnable will only be called when a updated schema has been
  * passed back through the AppendRowsResponse. Users should only implement the run() function.
+ *
+ * @deprecated
  */
 public abstract class OnSchemaUpdateRunnable implements Runnable {
   private StreamWriter streamWriter;