xref: /external/google-cloud-java/java-appengine-admin/google-cloud-appengine-admin/src/main/java/com/google/appengine/v1/VersionsClient.java

/*
 * Copyright 2022 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.
 */

package com.google.appengine.v1;

import com.google.api.core.ApiFuture;
import com.google.api.core.ApiFutures;
import com.google.api.core.BetaApi;
import com.google.api.gax.core.BackgroundResource;
import com.google.api.gax.httpjson.longrunning.OperationsClient;
import com.google.api.gax.longrunning.OperationFuture;
import com.google.api.gax.paging.AbstractFixedSizeCollection;
import com.google.api.gax.paging.AbstractPage;
import com.google.api.gax.paging.AbstractPagedListResponse;
import com.google.api.gax.rpc.OperationCallable;
import com.google.api.gax.rpc.PageContext;
import com.google.api.gax.rpc.UnaryCallable;
import com.google.appengine.v1.stub.VersionsStub;
import com.google.appengine.v1.stub.VersionsStubSettings;
import com.google.common.util.concurrent.MoreExecutors;
import com.google.longrunning.Operation;
import com.google.protobuf.Empty;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.TimeUnit;
import javax.annotation.Generated;

// AUTO-GENERATED DOCUMENTATION AND CLASS.
/**
 * Service Description: Manages versions of a service.
 *
 * <p>This class provides the ability to make remote calls to the backing service through method
 * calls that map to API methods. Sample code to get started:
 *
 * <pre>{@code
 * // This snippet 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 as shown in
 * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 * try (VersionsClient versionsClient = VersionsClient.create()) {
 *   GetVersionRequest request =
 *       GetVersionRequest.newBuilder()
 *           .setName("name3373707")
 *           .setView(VersionView.forNumber(0))
 *           .build();
 *   Version response = versionsClient.getVersion(request);
 * }
 * }</pre>
 *
 * <p>Note: close() needs to be called on the VersionsClient object to clean up resources such as
 * threads. In the example above, try-with-resources is used, which automatically calls close().
 *
 * <p>The surface of this class includes several types of Java methods for each of the API's
 * methods:
 *
 * <ol>
 *   <li>A "flattened" method. With this type of method, the fields of the request type have been
 *       converted into function parameters. It may be the case that not all fields are available as
 *       parameters, and not every API method will have a flattened method entry point.
 *   <li>A "request object" method. This type of method only takes one parameter, a request object,
 *       which must be constructed before the call. Not every API method will have a request object
 *       method.
 *   <li>A "callable" method. This type of method takes no parameters and returns an immutable API
 *       callable object, which can be used to initiate calls to the service.
 * </ol>
 *
 * <p>See the individual methods for example code.
 *
 * <p>Many parameters require resource names to be formatted in a particular way. To assist with
 * these names, this class includes a format method for each type of name, and additionally a parse
 * method to extract the individual identifiers contained within names that are returned.
 *
 * <p>This class can be customized by passing in a custom instance of VersionsSettings to create().
 * For example:
 *
 * <p>To customize credentials:
 *
 * <pre>{@code
 * // This snippet 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 as shown in
 * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 * VersionsSettings versionsSettings =
 *     VersionsSettings.newBuilder()
 *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
 *         .build();
 * VersionsClient versionsClient = VersionsClient.create(versionsSettings);
 * }</pre>
 *
 * <p>To customize the endpoint:
 *
 * <pre>{@code
 * // This snippet 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 as shown in
 * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 * VersionsSettings versionsSettings =
 *     VersionsSettings.newBuilder().setEndpoint(myEndpoint).build();
 * VersionsClient versionsClient = VersionsClient.create(versionsSettings);
 * }</pre>
 *
 * <p>To use REST (HTTP1.1/JSON) transport (instead of gRPC) for sending and receiving requests over
 * the wire:
 *
 * <pre>{@code
 * // This snippet 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 as shown in
 * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 * VersionsSettings versionsSettings = VersionsSettings.newHttpJsonBuilder().build();
 * VersionsClient versionsClient = VersionsClient.create(versionsSettings);
 * }</pre>
 *
 * <p>Please refer to the GitHub repository's samples for more quickstart code snippets.
 */
@Generated("by gapic-generator-java")
public class VersionsClient implements BackgroundResource {
  private final VersionsSettings settings;
  private final VersionsStub stub;
  private final OperationsClient httpJsonOperationsClient;
  private final com.google.longrunning.OperationsClient operationsClient;

  /** Constructs an instance of VersionsClient with default settings. */
  public static final VersionsClient create() throws IOException {
    return create(VersionsSettings.newBuilder().build());
  }

  /**
   * Constructs an instance of VersionsClient, using the given settings. The channels are created
   * based on the settings passed in, or defaults for any settings that are not set.
   */
  public static final VersionsClient create(VersionsSettings settings) throws IOException {
    return new VersionsClient(settings);
  }

  /**
   * Constructs an instance of VersionsClient, using the given stub for making calls. This is for
   * advanced usage - prefer using create(VersionsSettings).
   */
  public static final VersionsClient create(VersionsStub stub) {
    return new VersionsClient(stub);
  }

  /**
   * Constructs an instance of VersionsClient, using the given settings. This is protected so that
   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
   */
  protected VersionsClient(VersionsSettings settings) throws IOException {
    this.settings = settings;
    this.stub = ((VersionsStubSettings) settings.getStubSettings()).createStub();
    this.operationsClient =
        com.google.longrunning.OperationsClient.create(this.stub.getOperationsStub());
    this.httpJsonOperationsClient = OperationsClient.create(this.stub.getHttpJsonOperationsStub());
  }

  protected VersionsClient(VersionsStub stub) {
    this.settings = null;
    this.stub = stub;
    this.operationsClient =
        com.google.longrunning.OperationsClient.create(this.stub.getOperationsStub());
    this.httpJsonOperationsClient = OperationsClient.create(this.stub.getHttpJsonOperationsStub());
  }

  public final VersionsSettings getSettings() {
    return settings;
  }

  public VersionsStub getStub() {
    return stub;
  }

  /**
   * Returns the OperationsClient that can be used to query the status of a long-running operation
   * returned by another API method call.
   */
  public final com.google.longrunning.OperationsClient getOperationsClient() {
    return operationsClient;
  }

  /**
   * Returns the OperationsClient that can be used to query the status of a long-running operation
   * returned by another API method call.
   */
  @BetaApi
  public final OperationsClient getHttpJsonOperationsClient() {
    return httpJsonOperationsClient;
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Lists the versions of a service.
   *
   * <p>Sample code:
   *
   * <pre>{@code
   * // This snippet 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 as shown in
   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
   * try (VersionsClient versionsClient = VersionsClient.create()) {
   *   ListVersionsRequest request =
   *       ListVersionsRequest.newBuilder()
   *           .setParent("parent-995424086")
   *           .setView(VersionView.forNumber(0))
   *           .setPageSize(883849137)
   *           .setPageToken("pageToken873572522")
   *           .build();
   *   for (Version element : versionsClient.listVersions(request).iterateAll()) {
   *     // doThingsWith(element);
   *   }
   * }
   * }</pre>
   *
   * @param request The request object containing all of the parameters for the API call.
   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
   */
  public final ListVersionsPagedResponse listVersions(ListVersionsRequest request) {
    return listVersionsPagedCallable().call(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Lists the versions of a service.
   *
   * <p>Sample code:
   *
   * <pre>{@code
   * // This snippet 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 as shown in
   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
   * try (VersionsClient versionsClient = VersionsClient.create()) {
   *   ListVersionsRequest request =
   *       ListVersionsRequest.newBuilder()
   *           .setParent("parent-995424086")
   *           .setView(VersionView.forNumber(0))
   *           .setPageSize(883849137)
   *           .setPageToken("pageToken873572522")
   *           .build();
   *   ApiFuture<Version> future = versionsClient.listVersionsPagedCallable().futureCall(request);
   *   // Do something.
   *   for (Version element : future.get().iterateAll()) {
   *     // doThingsWith(element);
   *   }
   * }
   * }</pre>
   */
  public final UnaryCallable<ListVersionsRequest, ListVersionsPagedResponse>
      listVersionsPagedCallable() {
    return stub.listVersionsPagedCallable();
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Lists the versions of a service.
   *
   * <p>Sample code:
   *
   * <pre>{@code
   * // This snippet 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 as shown in
   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
   * try (VersionsClient versionsClient = VersionsClient.create()) {
   *   ListVersionsRequest request =
   *       ListVersionsRequest.newBuilder()
   *           .setParent("parent-995424086")
   *           .setView(VersionView.forNumber(0))
   *           .setPageSize(883849137)
   *           .setPageToken("pageToken873572522")
   *           .build();
   *   while (true) {
   *     ListVersionsResponse response = versionsClient.listVersionsCallable().call(request);
   *     for (Version element : response.getVersionsList()) {
   *       // doThingsWith(element);
   *     }
   *     String nextPageToken = response.getNextPageToken();
   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
   *       request = request.toBuilder().setPageToken(nextPageToken).build();
   *     } else {
   *       break;
   *     }
   *   }
   * }
   * }</pre>
   */
  public final UnaryCallable<ListVersionsRequest, ListVersionsResponse> listVersionsCallable() {
    return stub.listVersionsCallable();
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Gets the specified Version resource. By default, only a `BASIC_VIEW` will be returned. Specify
   * the `FULL_VIEW` parameter to get the full resource.
   *
   * <p>Sample code:
   *
   * <pre>{@code
   * // This snippet 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 as shown in
   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
   * try (VersionsClient versionsClient = VersionsClient.create()) {
   *   GetVersionRequest request =
   *       GetVersionRequest.newBuilder()
   *           .setName("name3373707")
   *           .setView(VersionView.forNumber(0))
   *           .build();
   *   Version response = versionsClient.getVersion(request);
   * }
   * }</pre>
   *
   * @param request The request object containing all of the parameters for the API call.
   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
   */
  public final Version getVersion(GetVersionRequest request) {
    return getVersionCallable().call(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Gets the specified Version resource. By default, only a `BASIC_VIEW` will be returned. Specify
   * the `FULL_VIEW` parameter to get the full resource.
   *
   * <p>Sample code:
   *
   * <pre>{@code
   * // This snippet 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 as shown in
   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
   * try (VersionsClient versionsClient = VersionsClient.create()) {
   *   GetVersionRequest request =
   *       GetVersionRequest.newBuilder()
   *           .setName("name3373707")
   *           .setView(VersionView.forNumber(0))
   *           .build();
   *   ApiFuture<Version> future = versionsClient.getVersionCallable().futureCall(request);
   *   // Do something.
   *   Version response = future.get();
   * }
   * }</pre>
   */
  public final UnaryCallable<GetVersionRequest, Version> getVersionCallable() {
    return stub.getVersionCallable();
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Deploys code and resource files to a new version.
   *
   * <p>Sample code:
   *
   * <pre>{@code
   * // This snippet 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 as shown in
   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
   * try (VersionsClient versionsClient = VersionsClient.create()) {
   *   CreateVersionRequest request =
   *       CreateVersionRequest.newBuilder()
   *           .setParent("parent-995424086")
   *           .setVersion(Version.newBuilder().build())
   *           .build();
   *   Version response = versionsClient.createVersionAsync(request).get();
   * }
   * }</pre>
   *
   * @param request The request object containing all of the parameters for the API call.
   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
   */
  public final OperationFuture<Version, CreateVersionMetadataV1> createVersionAsync(
      CreateVersionRequest request) {
    return createVersionOperationCallable().futureCall(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Deploys code and resource files to a new version.
   *
   * <p>Sample code:
   *
   * <pre>{@code
   * // This snippet 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 as shown in
   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
   * try (VersionsClient versionsClient = VersionsClient.create()) {
   *   CreateVersionRequest request =
   *       CreateVersionRequest.newBuilder()
   *           .setParent("parent-995424086")
   *           .setVersion(Version.newBuilder().build())
   *           .build();
   *   OperationFuture<Version, CreateVersionMetadataV1> future =
   *       versionsClient.createVersionOperationCallable().futureCall(request);
   *   // Do something.
   *   Version response = future.get();
   * }
   * }</pre>
   */
  public final OperationCallable<CreateVersionRequest, Version, CreateVersionMetadataV1>
      createVersionOperationCallable() {
    return stub.createVersionOperationCallable();
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Deploys code and resource files to a new version.
   *
   * <p>Sample code:
   *
   * <pre>{@code
   * // This snippet 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 as shown in
   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
   * try (VersionsClient versionsClient = VersionsClient.create()) {
   *   CreateVersionRequest request =
   *       CreateVersionRequest.newBuilder()
   *           .setParent("parent-995424086")
   *           .setVersion(Version.newBuilder().build())
   *           .build();
   *   ApiFuture<Operation> future = versionsClient.createVersionCallable().futureCall(request);
   *   // Do something.
   *   Operation response = future.get();
   * }
   * }</pre>
   */
  public final UnaryCallable<CreateVersionRequest, Operation> createVersionCallable() {
    return stub.createVersionCallable();
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Updates the specified Version resource. You can specify the following fields depending on the
   * App Engine environment and type of scaling that the version resource uses:
   *
   * <p>&#42;&#42;Standard environment&#42;&#42;
   *
   * <ul>
   *   <li>[`instance_class`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.instance_class)
   * </ul>
   *
   * <p>&#42;automatic scaling&#42; in the standard environment:
   *
   * <ul>
   *   <li>[`automatic_scaling.min_idle_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   *   <li>[`automatic_scaling.max_idle_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   *   <li>[`automaticScaling.standard_scheduler_settings.max_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StandardSchedulerSettings)
   *   <li>[`automaticScaling.standard_scheduler_settings.min_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StandardSchedulerSettings)
   *   <li>[`automaticScaling.standard_scheduler_settings.target_cpu_utilization`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StandardSchedulerSettings)
   *   <li>[`automaticScaling.standard_scheduler_settings.target_throughput_utilization`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StandardSchedulerSettings)
   * </ul>
   *
   * <p>&#42;basic scaling&#42; or &#42;manual scaling&#42; in the standard environment:
   *
   * <ul>
   *   <li>[`serving_status`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.serving_status)
   *   <li>[`manual_scaling.instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#manualscaling)
   * </ul>
   *
   * <p>&#42;&#42;Flexible environment&#42;&#42;
   *
   * <ul>
   *   <li>[`serving_status`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.serving_status)
   * </ul>
   *
   * <p>&#42;automatic scaling&#42; in the flexible environment:
   *
   * <ul>
   *   <li>[`automatic_scaling.min_total_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   *   <li>[`automatic_scaling.max_total_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   *   <li>[`automatic_scaling.cool_down_period_sec`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   *   <li>[`automatic_scaling.cpu_utilization.target_utilization`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   * </ul>
   *
   * <p>&#42;manual scaling&#42; in the flexible environment:
   *
   * <ul>
   *   <li>[`manual_scaling.instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#manualscaling)
   * </ul>
   *
   * <p>Sample code:
   *
   * <pre>{@code
   * // This snippet 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 as shown in
   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
   * try (VersionsClient versionsClient = VersionsClient.create()) {
   *   UpdateVersionRequest request =
   *       UpdateVersionRequest.newBuilder()
   *           .setName("name3373707")
   *           .setVersion(Version.newBuilder().build())
   *           .setUpdateMask(FieldMask.newBuilder().build())
   *           .build();
   *   Version response = versionsClient.updateVersionAsync(request).get();
   * }
   * }</pre>
   *
   * @param request The request object containing all of the parameters for the API call.
   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
   */
  public final OperationFuture<Version, OperationMetadataV1> updateVersionAsync(
      UpdateVersionRequest request) {
    return updateVersionOperationCallable().futureCall(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Updates the specified Version resource. You can specify the following fields depending on the
   * App Engine environment and type of scaling that the version resource uses:
   *
   * <p>&#42;&#42;Standard environment&#42;&#42;
   *
   * <ul>
   *   <li>[`instance_class`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.instance_class)
   * </ul>
   *
   * <p>&#42;automatic scaling&#42; in the standard environment:
   *
   * <ul>
   *   <li>[`automatic_scaling.min_idle_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   *   <li>[`automatic_scaling.max_idle_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   *   <li>[`automaticScaling.standard_scheduler_settings.max_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StandardSchedulerSettings)
   *   <li>[`automaticScaling.standard_scheduler_settings.min_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StandardSchedulerSettings)
   *   <li>[`automaticScaling.standard_scheduler_settings.target_cpu_utilization`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StandardSchedulerSettings)
   *   <li>[`automaticScaling.standard_scheduler_settings.target_throughput_utilization`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StandardSchedulerSettings)
   * </ul>
   *
   * <p>&#42;basic scaling&#42; or &#42;manual scaling&#42; in the standard environment:
   *
   * <ul>
   *   <li>[`serving_status`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.serving_status)
   *   <li>[`manual_scaling.instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#manualscaling)
   * </ul>
   *
   * <p>&#42;&#42;Flexible environment&#42;&#42;
   *
   * <ul>
   *   <li>[`serving_status`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.serving_status)
   * </ul>
   *
   * <p>&#42;automatic scaling&#42; in the flexible environment:
   *
   * <ul>
   *   <li>[`automatic_scaling.min_total_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   *   <li>[`automatic_scaling.max_total_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   *   <li>[`automatic_scaling.cool_down_period_sec`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   *   <li>[`automatic_scaling.cpu_utilization.target_utilization`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   * </ul>
   *
   * <p>&#42;manual scaling&#42; in the flexible environment:
   *
   * <ul>
   *   <li>[`manual_scaling.instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#manualscaling)
   * </ul>
   *
   * <p>Sample code:
   *
   * <pre>{@code
   * // This snippet 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 as shown in
   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
   * try (VersionsClient versionsClient = VersionsClient.create()) {
   *   UpdateVersionRequest request =
   *       UpdateVersionRequest.newBuilder()
   *           .setName("name3373707")
   *           .setVersion(Version.newBuilder().build())
   *           .setUpdateMask(FieldMask.newBuilder().build())
   *           .build();
   *   OperationFuture<Version, OperationMetadataV1> future =
   *       versionsClient.updateVersionOperationCallable().futureCall(request);
   *   // Do something.
   *   Version response = future.get();
   * }
   * }</pre>
   */
  public final OperationCallable<UpdateVersionRequest, Version, OperationMetadataV1>
      updateVersionOperationCallable() {
    return stub.updateVersionOperationCallable();
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Updates the specified Version resource. You can specify the following fields depending on the
   * App Engine environment and type of scaling that the version resource uses:
   *
   * <p>&#42;&#42;Standard environment&#42;&#42;
   *
   * <ul>
   *   <li>[`instance_class`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.instance_class)
   * </ul>
   *
   * <p>&#42;automatic scaling&#42; in the standard environment:
   *
   * <ul>
   *   <li>[`automatic_scaling.min_idle_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   *   <li>[`automatic_scaling.max_idle_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   *   <li>[`automaticScaling.standard_scheduler_settings.max_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StandardSchedulerSettings)
   *   <li>[`automaticScaling.standard_scheduler_settings.min_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StandardSchedulerSettings)
   *   <li>[`automaticScaling.standard_scheduler_settings.target_cpu_utilization`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StandardSchedulerSettings)
   *   <li>[`automaticScaling.standard_scheduler_settings.target_throughput_utilization`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StandardSchedulerSettings)
   * </ul>
   *
   * <p>&#42;basic scaling&#42; or &#42;manual scaling&#42; in the standard environment:
   *
   * <ul>
   *   <li>[`serving_status`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.serving_status)
   *   <li>[`manual_scaling.instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#manualscaling)
   * </ul>
   *
   * <p>&#42;&#42;Flexible environment&#42;&#42;
   *
   * <ul>
   *   <li>[`serving_status`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.serving_status)
   * </ul>
   *
   * <p>&#42;automatic scaling&#42; in the flexible environment:
   *
   * <ul>
   *   <li>[`automatic_scaling.min_total_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   *   <li>[`automatic_scaling.max_total_instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   *   <li>[`automatic_scaling.cool_down_period_sec`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   *   <li>[`automatic_scaling.cpu_utilization.target_utilization`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
   * </ul>
   *
   * <p>&#42;manual scaling&#42; in the flexible environment:
   *
   * <ul>
   *   <li>[`manual_scaling.instances`](https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#manualscaling)
   * </ul>
   *
   * <p>Sample code:
   *
   * <pre>{@code
   * // This snippet 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 as shown in
   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
   * try (VersionsClient versionsClient = VersionsClient.create()) {
   *   UpdateVersionRequest request =
   *       UpdateVersionRequest.newBuilder()
   *           .setName("name3373707")
   *           .setVersion(Version.newBuilder().build())
   *           .setUpdateMask(FieldMask.newBuilder().build())
   *           .build();
   *   ApiFuture<Operation> future = versionsClient.updateVersionCallable().futureCall(request);
   *   // Do something.
   *   Operation response = future.get();
   * }
   * }</pre>
   */
  public final UnaryCallable<UpdateVersionRequest, Operation> updateVersionCallable() {
    return stub.updateVersionCallable();
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Deletes an existing Version resource.
   *
   * <p>Sample code:
   *
   * <pre>{@code
   * // This snippet 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 as shown in
   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
   * try (VersionsClient versionsClient = VersionsClient.create()) {
   *   DeleteVersionRequest request =
   *       DeleteVersionRequest.newBuilder().setName("name3373707").build();
   *   versionsClient.deleteVersionAsync(request).get();
   * }
   * }</pre>
   *
   * @param request The request object containing all of the parameters for the API call.
   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
   */
  public final OperationFuture<Empty, OperationMetadataV1> deleteVersionAsync(
      DeleteVersionRequest request) {
    return deleteVersionOperationCallable().futureCall(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Deletes an existing Version resource.
   *
   * <p>Sample code:
   *
   * <pre>{@code
   * // This snippet 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 as shown in
   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
   * try (VersionsClient versionsClient = VersionsClient.create()) {
   *   DeleteVersionRequest request =
   *       DeleteVersionRequest.newBuilder().setName("name3373707").build();
   *   OperationFuture<Empty, OperationMetadataV1> future =
   *       versionsClient.deleteVersionOperationCallable().futureCall(request);
   *   // Do something.
   *   future.get();
   * }
   * }</pre>
   */
  public final OperationCallable<DeleteVersionRequest, Empty, OperationMetadataV1>
      deleteVersionOperationCallable() {
    return stub.deleteVersionOperationCallable();
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Deletes an existing Version resource.
   *
   * <p>Sample code:
   *
   * <pre>{@code
   * // This snippet 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 as shown in
   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
   * try (VersionsClient versionsClient = VersionsClient.create()) {
   *   DeleteVersionRequest request =
   *       DeleteVersionRequest.newBuilder().setName("name3373707").build();
   *   ApiFuture<Operation> future = versionsClient.deleteVersionCallable().futureCall(request);
   *   // Do something.
   *   future.get();
   * }
   * }</pre>
   */
  public final UnaryCallable<DeleteVersionRequest, Operation> deleteVersionCallable() {
    return stub.deleteVersionCallable();
  }

  @Override
  public final void close() {
    stub.close();
  }

  @Override
  public void shutdown() {
    stub.shutdown();
  }

  @Override
  public boolean isShutdown() {
    return stub.isShutdown();
  }

  @Override
  public boolean isTerminated() {
    return stub.isTerminated();
  }

  @Override
  public void shutdownNow() {
    stub.shutdownNow();
  }

  @Override
  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
    return stub.awaitTermination(duration, unit);
  }

  public static class ListVersionsPagedResponse
      extends AbstractPagedListResponse<
          ListVersionsRequest,
          ListVersionsResponse,
          Version,
          ListVersionsPage,
          ListVersionsFixedSizeCollection> {

    public static ApiFuture<ListVersionsPagedResponse> createAsync(
        PageContext<ListVersionsRequest, ListVersionsResponse, Version> context,
        ApiFuture<ListVersionsResponse> futureResponse) {
      ApiFuture<ListVersionsPage> futurePage =
          ListVersionsPage.createEmptyPage().createPageAsync(context, futureResponse);
      return ApiFutures.transform(
          futurePage,
          input -> new ListVersionsPagedResponse(input),
          MoreExecutors.directExecutor());
    }

    private ListVersionsPagedResponse(ListVersionsPage page) {
      super(page, ListVersionsFixedSizeCollection.createEmptyCollection());
    }
  }

  public static class ListVersionsPage
      extends AbstractPage<ListVersionsRequest, ListVersionsResponse, Version, ListVersionsPage> {

    private ListVersionsPage(
        PageContext<ListVersionsRequest, ListVersionsResponse, Version> context,
        ListVersionsResponse response) {
      super(context, response);
    }

    private static ListVersionsPage createEmptyPage() {
      return new ListVersionsPage(null, null);
    }

    @Override
    protected ListVersionsPage createPage(
        PageContext<ListVersionsRequest, ListVersionsResponse, Version> context,
        ListVersionsResponse response) {
      return new ListVersionsPage(context, response);
    }

    @Override
    public ApiFuture<ListVersionsPage> createPageAsync(
        PageContext<ListVersionsRequest, ListVersionsResponse, Version> context,
        ApiFuture<ListVersionsResponse> futureResponse) {
      return super.createPageAsync(context, futureResponse);
    }
  }

  public static class ListVersionsFixedSizeCollection
      extends AbstractFixedSizeCollection<
          ListVersionsRequest,
          ListVersionsResponse,
          Version,
          ListVersionsPage,
          ListVersionsFixedSizeCollection> {

    private ListVersionsFixedSizeCollection(List<ListVersionsPage> pages, int collectionSize) {
      super(pages, collectionSize);
    }

    private static ListVersionsFixedSizeCollection createEmptyCollection() {
      return new ListVersionsFixedSizeCollection(null, 0);
    }

    @Override
    protected ListVersionsFixedSizeCollection createCollection(
        List<ListVersionsPage> pages, int collectionSize) {
      return new ListVersionsFixedSizeCollection(pages, collectionSize);
    }
  }
}