Drop database protection changes

google/spanner/admin/database/v1/spanner.yaml

@@ -14,6 +14,7 @@ types:
 - name: google.spanner.admin.database.v1.OptimizeRestoredDatabaseMetadata
 - name: google.spanner.admin.database.v1.RestoreDatabaseMetadata
 - name: google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata
+- name: google.spanner.admin.database.v1.UpdateDatabaseMetadata
 
 documentation:
   summary: |-

google/spanner/admin/database/v1/spanner_admin_database_gapic.yaml

@@ -12,6 +12,12 @@ interfaces:
       poll_delay_multiplier: 1.5
       max_poll_delay_millis: 45000
       total_poll_timeout_millis: 86400000
+  - name: UpdateDatabase
+    long_running:
+      initial_poll_delay_millis: 20000
+      poll_delay_multiplier: 1.5
+      max_poll_delay_millis: 45000
+      total_poll_timeout_millis: 86400000
   - name: UpdateDatabaseDdl
     long_running:
       initial_poll_delay_millis: 20000

google/spanner/admin/database/v1/spanner_admin_database_grpc_service_config.json

@@ -10,6 +10,10 @@
           "service": "google.spanner.admin.database.v1.DatabaseAdmin",
           "method": "GetDatabase"
         },
+        {
+          "service": "google.spanner.admin.database.v1.DatabaseAdmin",
+          "method": "UpdateDatabase"
+        },
         {
           "service": "google.spanner.admin.database.v1.DatabaseAdmin",
           "method": "UpdateDatabaseDdl"

google/spanner/admin/database/v1/spanner_database_admin.proto

@@ -27,6 +27,7 @@ import "google/protobuf/empty.proto";
 import "google/protobuf/timestamp.proto";
 import "google/spanner/admin/database/v1/backup.proto";
 import "google/spanner/admin/database/v1/common.proto";
+import "google/protobuf/field_mask.proto";
 
 option csharp_namespace = "Google.Cloud.Spanner.Admin.Database.V1";
 option go_package = "google.golang.org/genproto/googleapis/spanner/admin/database/v1;database";
@@ -89,6 +90,19 @@ service DatabaseAdmin {
     option (google.api.method_signature) = "name";
   }
 
+  rpc UpdateDatabase(UpdateDatabaseRequest)
+    returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      patch: "/v1/{database.name=projects/*/instances/*/databases/*}"
+      body: "database"
+    };
+    option (google.api.method_signature) = "database,update_mask";
+    option (google.longrunning.operation_info) = {
+      response_type: "Database"
+      metadata_type: "UpdateDatabaseMetadata"
+    };
+  }
+
   // Updates the schema of a Cloud Spanner database by
   // creating/altering/dropping tables, columns, indexes, etc. The returned
   // [long-running operation][google.longrunning.Operation] will have a name of
@@ -449,6 +463,12 @@ message Database {
 
   // Output only. The dialect of the Cloud Spanner Database.
   DatabaseDialect database_dialect = 10 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Whether drop protection is enabled for this database. Defaults to false, if not set.
+  bool enable_drop_protection = 11;
+
+  // If true, the database is being updated. If false, there are no ongoing update operations for the database.
+  bool reconciling = 12 [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
 // The request for [ListDatabases][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabases].
@@ -537,6 +557,37 @@ message GetDatabaseRequest {
   ];
 }
 
+// The request for [UpdateDatabase][DatabaseAdmin.UpdateDatabase].
+message UpdateDatabaseRequest {
+  // Required. The database to update.
+  // The `name` field of the database is of the form
+  // `projects/<project>/instances/<instance>/databases/<database>`.
+  Database database = 1 [
+    (google.api.field_behavior) = REQUIRED
+  ];
+
+  // Required. The list of fields to update. Currently, only
+  // `enable_drop_protection` field can be updated.
+  google.protobuf.FieldMask update_mask = 2 [
+    (google.api.field_behavior) = REQUIRED
+  ];
+}
+
+// Metadata type for the operation returned by
+// [UpdateDatabase][DatabaseAdmin.UpdateDatabase].
+message UpdateDatabaseMetadata {
+  // The request for [UpdateDatabase][DatabaseAdmin.UpdateDatabase].
+  UpdateDatabaseRequest request = 1;
+
+  // The progress of the [UpdateDatabase][DatabaseAdmin.UpdateDatabase]
+  // operation.
+  OperationProgress progress = 2;
+
+  // The time at which this operation was cancelled. If set, this operation is
+  // in the process of undoing itself (which is best-effort).
+  google.protobuf.Timestamp cancel_time = 3;
+}
+
 // Enqueues the given DDL statements to be applied, in order but not
 // necessarily all at once, to the database schema at some point (or
 // points) in the future. The server checks that the statements