feat: added Demote RPC (#6825)

PiperOrigin-RevId: 586089229
Source-Link: googleapis/googleapis@f5d61d7
Source-Link: googleapis/googleapis-gen@6236bbe
Copy-Tag: eyJwIjoiU3FsQWRtaW4vLk93bEJvdC55YW1sIiwiaCI6IjYyMzZiYmU3NDdhOWY4OTRlNDFlNGJlZmVmZGQ2MjliMjY2MTgzNTEifQ==

* feat: added Demote RPC
PiperOrigin-RevId: 586090177
Source-Link: googleapis/googleapis@f10a004
Source-Link: googleapis/googleapis-gen@5e21cf0
Copy-Tag: eyJwIjoiU3FsQWRtaW4vLk93bEJvdC55YW1sIiwiaCI6IjVlMjFjZjAxMTY3Y2VkNzhjN2FkYjJjYjZmZjQ0YzkyYTM1MWQ3MWYifQ==

SqlAdmin/samples/V1/SqlInstancesServiceClient/demote.php

@@ -0,0 +1,87 @@
+<?php
+/*
+ * Copyright 2023 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
+ *
+ *     https://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.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START sqladmin_v1_generated_SqlInstancesService_Demote_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Sql\V1\Client\SqlInstancesServiceClient;
+use Google\Cloud\Sql\V1\DemoteContext;
+use Google\Cloud\Sql\V1\InstancesDemoteRequest;
+use Google\Cloud\Sql\V1\Operation;
+use Google\Cloud\Sql\V1\SqlInstancesDemoteRequest;
+
+/**
+ * Demotes an existing standalone instance to be a Cloud SQL read replica
+ * for an external database server.
+ *
+ * @param string $instance                                          Cloud SQL instance name.
+ * @param string $project                                           ID of the project that contains the instance.
+ * @param string $bodyDemoteContextSourceRepresentativeInstanceName The name of the instance which acts as the on-premises primary
+ *                                                                  instance in the replication setup.
+ */
+function demote_sample(
+    string $instance,
+    string $project,
+    string $bodyDemoteContextSourceRepresentativeInstanceName
+): void {
+    // Create a client.
+    $sqlInstancesServiceClient = new SqlInstancesServiceClient();
+
+    // Prepare the request message.
+    $bodyDemoteContext = (new DemoteContext())
+        ->setSourceRepresentativeInstanceName($bodyDemoteContextSourceRepresentativeInstanceName);
+    $body = (new InstancesDemoteRequest())
+        ->setDemoteContext($bodyDemoteContext);
+    $request = (new SqlInstancesDemoteRequest())
+        ->setInstance($instance)
+        ->setProject($project)
+        ->setBody($body);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var Operation $response */
+        $response = $sqlInstancesServiceClient->demote($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $instance = '[INSTANCE]';
+    $project = '[PROJECT]';
+    $bodyDemoteContextSourceRepresentativeInstanceName = '[SOURCE_REPRESENTATIVE_INSTANCE_NAME]';
+
+    demote_sample($instance, $project, $bodyDemoteContextSourceRepresentativeInstanceName);
+}
+// [END sqladmin_v1_generated_SqlInstancesService_Demote_sync]

SqlAdmin/samples/V1beta4/SqlInstancesServiceClient/demote.php

@@ -0,0 +1,68 @@
+<?php
+/*
+ * Copyright 2023 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
+ *
+ *     https://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.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START sqladmin_v1beta4_generated_SqlInstancesService_Demote_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Sql\V1beta4\Operation;
+use Google\Cloud\Sql\V1beta4\SqlInstancesServiceClient;
+
+/**
+ * Demotes an existing standalone instance to be a Cloud SQL read replica
+ * for an external database server.
+ *
+ * @param string $instance The name of the Cloud SQL instance.
+ * @param string $project  The project ID of the project that contains the instance.
+ */
+function demote_sample(string $instance, string $project): void
+{
+    // Create a client.
+    $sqlInstancesServiceClient = new SqlInstancesServiceClient();
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var Operation $response */
+        $response = $sqlInstancesServiceClient->demote($instance, $project);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $instance = '[INSTANCE]';
+    $project = '[PROJECT]';
+
+    demote_sample($instance, $project);
+}
+// [END sqladmin_v1beta4_generated_SqlInstancesService_Demote_sync]

SqlAdmin/src/V1/Client/SqlInstancesServiceClient.php

@@ -40,6 +40,7 @@
 use Google\Cloud\Sql\V1\SqlInstancesCreateEphemeralCertRequest;
 use Google\Cloud\Sql\V1\SqlInstancesDeleteRequest;
 use Google\Cloud\Sql\V1\SqlInstancesDemoteMasterRequest;
+use Google\Cloud\Sql\V1\SqlInstancesDemoteRequest;
 use Google\Cloud\Sql\V1\SqlInstancesExportRequest;
 use Google\Cloud\Sql\V1\SqlInstancesFailoverRequest;
 use Google\Cloud\Sql\V1\SqlInstancesGetDiskShrinkConfigRequest;
@@ -86,6 +87,7 @@
  * @method PromiseInterface cloneAsync(SqlInstancesCloneRequest $request, array $optionalArgs = [])
  * @method PromiseInterface createEphemeralAsync(SqlInstancesCreateEphemeralCertRequest $request, array $optionalArgs = [])
  * @method PromiseInterface deleteAsync(SqlInstancesDeleteRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface demoteAsync(SqlInstancesDemoteRequest $request, array $optionalArgs = [])
  * @method PromiseInterface demoteMasterAsync(SqlInstancesDemoteMasterRequest $request, array $optionalArgs = [])
  * @method PromiseInterface exportAsync(SqlInstancesExportRequest $request, array $optionalArgs = [])
  * @method PromiseInterface failoverAsync(SqlInstancesFailoverRequest $request, array $optionalArgs = [])
@@ -338,6 +340,33 @@ public function delete(SqlInstancesDeleteRequest $request, array $callOptions =
         return $this->startApiCall('Delete', $request, $callOptions)->wait();
     }
 
+    /**
+     * Demotes an existing standalone instance to be a Cloud SQL read replica
+     * for an external database server.
+     *
+     * The async variant is {@see SqlInstancesServiceClient::demoteAsync()} .
+     *
+     * @example samples/V1/SqlInstancesServiceClient/demote.php
+     *
+     * @param SqlInstancesDemoteRequest $request     A request to house fields associated with the call.
+     * @param array                     $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return Operation
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function demote(SqlInstancesDemoteRequest $request, array $callOptions = []): Operation
+    {
+        return $this->startApiCall('Demote', $request, $callOptions)->wait();
+    }
+
     /**
      * Demotes the stand-alone instance to be a Cloud SQL read replica for an
      * external database server.