feat: add deprecated annotation and tag to bq storage alpha api (#978)

* feat: add deprecated annotation and tag to bq storage alpha api

* .

* lint;

* .

google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1alpha2/BQTableSchemaToProtoDescriptor.java

@@ -32,7 +32,10 @@
  * Converts a BQ table schema to protobuf descriptor. All field names will be converted to lowercase
  * when constructing the protobuf descriptor. The mapping between field types and field modes are
  * shown in the ImmutableMaps below.
+ *
+ * @deprecated Use {@link com.google.cloud.bigquery.storage.v1beta2.BQTableSchemaToProtoDescriptor}
  */
+@Deprecated
 public class BQTableSchemaToProtoDescriptor {
   private static ImmutableMap<Table.TableFieldSchema.Mode, FieldDescriptorProto.Label>
       BQTableSchemaModeMap =

google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1alpha2/DirectWriter.java

@@ -48,7 +48,10 @@
  *
  * <p>{@link DirectWriter} will use the credentials set on the channel, which uses application
  * default credentials through {@link GoogleCredentials#getApplicationDefault} by default.
+ *
+ * @deprecated no longer supported
  */
+@Deprecated
 public class DirectWriter {
   private static final Logger LOG = Logger.getLogger(DirectWriter.class.getName());
   private static WriterCache cache = null;

google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1alpha2/JsonStreamWriter.java

@@ -44,7 +44,10 @@
  * 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).
+ *
+ * @deprecated Use {@link com.google.cloud.bigquery.storage.v1alpha2.JsonStreamWriter}
  */
+@Deprecated
 public class JsonStreamWriter implements AutoCloseable {
   private static String streamPatternString =
       "projects/[^/]+/datasets/[^/]+/tables/[^/]+/streams/[^/]+";

google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1alpha2/JsonToProtoMessage.java

@@ -29,7 +29,10 @@
 /**
  * Converts Json data to protocol buffer messages given the protocol buffer descriptor. The protobuf
  * descriptor must have all fields lowercased.
+ *
+ * @deprecated Use {@link com.google.cloud.bigquery.storage.v1beta2.JsonToProtoMessage}
  */
+@Deprecated
 public class JsonToProtoMessage {
   private static ImmutableMap<FieldDescriptor.Type, String> FieldTypeToDebugMessage =
       new ImmutableMap.Builder<FieldDescriptor.Type, String>()

google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1alpha2/JsonWriterCache.java

@@ -30,7 +30,10 @@
  * A cache of JsonStreamWriters that can be looked up by Table Name. The entries will expire after 5
  * minutes if not used. Code sample: JsonWriterCache cache = JsonWriterCache.getInstance();
  * JsonStreamWriter writer = cache.getWriter(); // Use... cache.returnWriter(writer);
+ *
+ * @deprecated No longer supported
  */
+@Deprecated
 public class JsonWriterCache {
   private static final Logger LOG = Logger.getLogger(JsonWriterCache.class.getName());
 

google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1alpha2/OnSchemaUpdateRunnable.java

@@ -19,7 +19,10 @@
  * 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 Use {@link com.google.cloud.bigquery.storage.v1beta2.OnSchemaUpdateRunnable}
  */
+@Deprecated
 public abstract class OnSchemaUpdateRunnable implements Runnable {
   private StreamWriter streamWriter;
   private Table.TableSchema updatedSchema;

google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1alpha2/ProtoSchemaConverter.java

@@ -30,6 +30,8 @@
 // A Converter class that turns a native protobuf::DescriptorProto to a self contained
 // protobuf::DescriptorProto
 // that can be reconstructed by the backend.
+// @deprecated Use {@link com.google.cloud.bigquery.storage.v1beta2.ProtoSchemaConverter}
+@Deprecated
 public class ProtoSchemaConverter {
   private static String getNameFromFullName(String fullName) {
     return fullName.replace('.', '_');

google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1alpha2/SchemaCompatibility.java

@@ -41,7 +41,10 @@
  *
  * <p>The implementation as of now is not complete, which measn, if this check passed, there is
  * still a possbility of writing will fail.
+ *
+ * @deprecated Use {@link com.google.cloud.bigquery.storage.v1beta2.SchemaCompatibility}
  */
+@Deprecated
 public class SchemaCompatibility {
   private BigQuery bigquery;
   private static SchemaCompatibility compat;

google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1alpha2/StreamWriter.java

@@ -78,7 +78,10 @@
  *
  * <p>{@link StreamWriter} will use the credentials set on the channel, which uses application
  * default credentials through {@link GoogleCredentials#getApplicationDefault} by default.
+ *
+ * @deprecated Use {@link com.google.cloud.bigquery.storage.v1alpha2.JsonStreamWriterV2}
  */
+@Deprecated
 public class StreamWriter implements AutoCloseable {
   private static final Logger LOG = Logger.getLogger(StreamWriter.class.getName());
 

google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1alpha2/Waiter.java

@@ -28,7 +28,10 @@
 /**
  * A barrier kind of object that helps keep track of pending actions and synchronously wait until
  * all have completed.
+ *
+ * @deprecated No longer supported
  */
+@Deprecated
 class Waiter {
   private static final Logger LOG = Logger.getLogger(Waiter.class.getName());
 

google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1alpha2/WriterCache.java

@@ -32,7 +32,10 @@
  * A cache of StreamWriters that can be looked up by Table Name. The entries will expire after 5
  * minutes if not used. Code sample: WriterCache cache = WriterCache.getInstance(); StreamWriter
  * writer = cache.getWriter(); // Use... cache.returnWriter(writer);
+ *
+ * @deprecated No longer supported
  */
+@Deprecated
 public class WriterCache {
   private static final Logger LOG = Logger.getLogger(WriterCache.class.getName());