feat: Add SQL translation service to Bazel generation (#36)

* feat: Add SQL translation service to Bazel generation

PiperOrigin-RevId: 512937316

Source-Link: googleapis/googleapis@178674c

Source-Link: googleapis/googleapis-gen@131f327
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packages/google-cloud-bigquery-migration/protos/google/cloud/bigquery/migration/v2alpha/translation_service.proto

@@ -0,0 +1,135 @@
+// Copyright 2021 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.bigquery.migration.v2alpha;
+
+import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+
+option csharp_namespace = "Google.Cloud.BigQuery.Migration.V2Alpha";
+option go_package = "cloud.google.com/go/bigquery/migration/apiv2alpha/migrationpb;migrationpb";
+option java_multiple_files = true;
+option java_outer_classname = "TranslationServiceProto";
+option java_package = "com.google.cloud.bigquery.migration.v2alpha";
+option php_namespace = "Google\\Cloud\\BigQuery\\Migration\\V2alpha";
+
+// Provides other SQL dialects to GoogleSQL translation operations.
+service SqlTranslationService {
+  option (google.api.default_host) = "bigquerymigration.googleapis.com";
+  option (google.api.oauth_scopes) = "https://www.googleapis.com/auth/cloud-platform";
+
+  // Translates input queries from source dialects to GoogleSQL.
+  rpc TranslateQuery(TranslateQueryRequest) returns (TranslateQueryResponse) {
+    option (google.api.http) = {
+      post: "/v2alpha/{parent=projects/*/locations/*}:translateQuery"
+      body: "*"
+    };
+    option (google.api.method_signature) = "parent,source_dialect,query";
+  }
+}
+
+// The request of translating a SQL query to Standard SQL.
+message TranslateQueryRequest {
+  // Supported SQL translation source dialects.
+  enum SqlTranslationSourceDialect {
+    // SqlTranslationSourceDialect not specified.
+    SQL_TRANSLATION_SOURCE_DIALECT_UNSPECIFIED = 0;
+
+    // Teradata SQL.
+    TERADATA = 1;
+  }
+
+  // Required. The name of the project to which this translation request belongs.
+  // Example: `projects/foo/locations/bar`
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "locations.googleapis.com/Location"
+    }
+  ];
+
+  // Required. The source SQL dialect of `queries`.
+  SqlTranslationSourceDialect source_dialect = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // Required. The query to be translated.
+  string query = 3 [(google.api.field_behavior) = REQUIRED];
+}
+
+// The response of translating a SQL query to Standard SQL.
+message TranslateQueryResponse {
+  // Output only. Immutable. The unique identifier for the SQL translation job.
+  // Example: `projects/123/locations/us/translation/1234`
+  string translation_job = 4 [
+    (google.api.field_behavior) = OUTPUT_ONLY,
+    (google.api.field_behavior) = IMMUTABLE
+  ];
+
+  // The translated result. This will be empty if the translation fails.
+  string translated_query = 1;
+
+  // The list of errors encountered during the translation, if present.
+  repeated SqlTranslationError errors = 2;
+
+  // The list of warnings encountered during the translation, if present,
+  // indicates non-semantically correct translation.
+  repeated SqlTranslationWarning warnings = 3;
+}
+
+// Structured error object capturing the error message and the location in the
+// source text where the error occurs.
+message SqlTranslationErrorDetail {
+  // Specifies the row from the source text where the error occurred.
+  int64 row = 1;
+
+  // Specifie the column from the source texts where the error occurred.
+  int64 column = 2;
+
+  // A human-readable description of the error.
+  string message = 3;
+}
+
+// The detailed error object if the SQL translation job fails.
+message SqlTranslationError {
+  // The error type of the SQL translation job.
+  enum SqlTranslationErrorType {
+    // SqlTranslationErrorType not specified.
+    SQL_TRANSLATION_ERROR_TYPE_UNSPECIFIED = 0;
+
+    // Failed to parse the input text as a SQL query.
+    SQL_PARSE_ERROR = 1;
+
+    // Found unsupported functions in the input SQL query that are not able to
+    // translate.
+    UNSUPPORTED_SQL_FUNCTION = 2;
+  }
+
+  // The type of SQL translation error.
+  SqlTranslationErrorType error_type = 1;
+
+  // Specifies the details of the error, including the error message and
+  // location from the source text.
+  SqlTranslationErrorDetail error_detail = 2;
+}
+
+// The detailed warning object if the SQL translation job is completed but not
+// semantically correct.
+message SqlTranslationWarning {
+  // Specifies the details of the warning, including the warning message and
+  // location from the source text.
+  SqlTranslationErrorDetail warning_detail = 1;
+}