xref: /external/google-cloud-java/java-compute/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZoneOperationsClient.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.cloud.compute.v1;

import com.google.api.core.ApiFuture;
import com.google.api.core.ApiFutures;
import com.google.api.gax.core.BackgroundResource;
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.PageContext;
import com.google.api.gax.rpc.UnaryCallable;
import com.google.cloud.compute.v1.stub.ZoneOperationsStub;
import com.google.cloud.compute.v1.stub.ZoneOperationsStubSettings;
import com.google.common.util.concurrent.MoreExecutors;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.TimeUnit;
import javax.annotation.Generated;

// AUTO-GENERATED DOCUMENTATION AND CLASS.
/**
 * Service Description: The ZoneOperations API.
 *
 * <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 (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
 *   String project = "project-309310695";
 *   String zone = "zone3744684";
 *   String operation = "operation1662702951";
 *   DeleteZoneOperationResponse response = zoneOperationsClient.delete(project, zone, operation);
 * }
 * }</pre>
 *
 * <p>Note: close() needs to be called on the ZoneOperationsClient 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 ZoneOperationsSettings 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
 * ZoneOperationsSettings zoneOperationsSettings =
 *     ZoneOperationsSettings.newBuilder()
 *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
 *         .build();
 * ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create(zoneOperationsSettings);
 * }</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
 * ZoneOperationsSettings zoneOperationsSettings =
 *     ZoneOperationsSettings.newBuilder().setEndpoint(myEndpoint).build();
 * ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create(zoneOperationsSettings);
 * }</pre>
 *
 * <p>Please refer to the GitHub repository's samples for more quickstart code snippets.
 */
@Generated("by gapic-generator-java")
public class ZoneOperationsClient implements BackgroundResource {
  private final ZoneOperationsSettings settings;
  private final ZoneOperationsStub stub;

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

  /**
   * Constructs an instance of ZoneOperationsClient, 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 ZoneOperationsClient create(ZoneOperationsSettings settings)
      throws IOException {
    return new ZoneOperationsClient(settings);
  }

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

  /**
   * Constructs an instance of ZoneOperationsClient, 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 ZoneOperationsClient(ZoneOperationsSettings settings) throws IOException {
    this.settings = settings;
    this.stub = ((ZoneOperationsStubSettings) settings.getStubSettings()).createStub();
  }

  protected ZoneOperationsClient(ZoneOperationsStub stub) {
    this.settings = null;
    this.stub = stub;
  }

  public final ZoneOperationsSettings getSettings() {
    return settings;
  }

  public ZoneOperationsStub getStub() {
    return stub;
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Deletes the specified zone-specific Operations 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 (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
   *   String project = "project-309310695";
   *   String zone = "zone3744684";
   *   String operation = "operation1662702951";
   *   DeleteZoneOperationResponse response = zoneOperationsClient.delete(project, zone, operation);
   * }
   * }</pre>
   *
   * @param project Project ID for this request.
   * @param zone Name of the zone for this request.
   * @param operation Name of the Operations resource to delete.
   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
   */
  public final DeleteZoneOperationResponse delete(String project, String zone, String operation) {
    DeleteZoneOperationRequest request =
        DeleteZoneOperationRequest.newBuilder()
            .setProject(project)
            .setZone(zone)
            .setOperation(operation)
            .build();
    return delete(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Deletes the specified zone-specific Operations 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 (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
   *   DeleteZoneOperationRequest request =
   *       DeleteZoneOperationRequest.newBuilder()
   *           .setOperation("operation1662702951")
   *           .setProject("project-309310695")
   *           .setZone("zone3744684")
   *           .build();
   *   DeleteZoneOperationResponse response = zoneOperationsClient.delete(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 DeleteZoneOperationResponse delete(DeleteZoneOperationRequest request) {
    return deleteCallable().call(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Deletes the specified zone-specific Operations 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 (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
   *   DeleteZoneOperationRequest request =
   *       DeleteZoneOperationRequest.newBuilder()
   *           .setOperation("operation1662702951")
   *           .setProject("project-309310695")
   *           .setZone("zone3744684")
   *           .build();
   *   ApiFuture<DeleteZoneOperationResponse> future =
   *       zoneOperationsClient.deleteCallable().futureCall(request);
   *   // Do something.
   *   DeleteZoneOperationResponse response = future.get();
   * }
   * }</pre>
   */
  public final UnaryCallable<DeleteZoneOperationRequest, DeleteZoneOperationResponse>
      deleteCallable() {
    return stub.deleteCallable();
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Retrieves the specified zone-specific Operations 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 (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
   *   String project = "project-309310695";
   *   String zone = "zone3744684";
   *   String operation = "operation1662702951";
   *   Operation response = zoneOperationsClient.get(project, zone, operation);
   * }
   * }</pre>
   *
   * @param project Project ID for this request.
   * @param zone Name of the zone for this request.
   * @param operation Name of the Operations resource to return.
   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
   */
  public final Operation get(String project, String zone, String operation) {
    GetZoneOperationRequest request =
        GetZoneOperationRequest.newBuilder()
            .setProject(project)
            .setZone(zone)
            .setOperation(operation)
            .build();
    return get(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Retrieves the specified zone-specific Operations 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 (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
   *   GetZoneOperationRequest request =
   *       GetZoneOperationRequest.newBuilder()
   *           .setOperation("operation1662702951")
   *           .setProject("project-309310695")
   *           .setZone("zone3744684")
   *           .build();
   *   Operation response = zoneOperationsClient.get(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 Operation get(GetZoneOperationRequest request) {
    return getCallable().call(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Retrieves the specified zone-specific Operations 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 (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
   *   GetZoneOperationRequest request =
   *       GetZoneOperationRequest.newBuilder()
   *           .setOperation("operation1662702951")
   *           .setProject("project-309310695")
   *           .setZone("zone3744684")
   *           .build();
   *   ApiFuture<Operation> future = zoneOperationsClient.getCallable().futureCall(request);
   *   // Do something.
   *   Operation response = future.get();
   * }
   * }</pre>
   */
  public final UnaryCallable<GetZoneOperationRequest, Operation> getCallable() {
    return stub.getCallable();
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Retrieves a list of Operation resources contained within the specified zone.
   *
   * <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 (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
   *   String project = "project-309310695";
   *   String zone = "zone3744684";
   *   for (Operation element : zoneOperationsClient.list(project, zone).iterateAll()) {
   *     // doThingsWith(element);
   *   }
   * }
   * }</pre>
   *
   * @param project Project ID for this request.
   * @param zone Name of the zone for request.
   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
   */
  public final ListPagedResponse list(String project, String zone) {
    ListZoneOperationsRequest request =
        ListZoneOperationsRequest.newBuilder().setProject(project).setZone(zone).build();
    return list(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Retrieves a list of Operation resources contained within the specified zone.
   *
   * <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 (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
   *   ListZoneOperationsRequest request =
   *       ListZoneOperationsRequest.newBuilder()
   *           .setFilter("filter-1274492040")
   *           .setMaxResults(1128457243)
   *           .setOrderBy("orderBy-1207110587")
   *           .setPageToken("pageToken873572522")
   *           .setProject("project-309310695")
   *           .setReturnPartialSuccess(true)
   *           .setZone("zone3744684")
   *           .build();
   *   for (Operation element : zoneOperationsClient.list(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 ListPagedResponse list(ListZoneOperationsRequest request) {
    return listPagedCallable().call(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Retrieves a list of Operation resources contained within the specified zone.
   *
   * <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 (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
   *   ListZoneOperationsRequest request =
   *       ListZoneOperationsRequest.newBuilder()
   *           .setFilter("filter-1274492040")
   *           .setMaxResults(1128457243)
   *           .setOrderBy("orderBy-1207110587")
   *           .setPageToken("pageToken873572522")
   *           .setProject("project-309310695")
   *           .setReturnPartialSuccess(true)
   *           .setZone("zone3744684")
   *           .build();
   *   ApiFuture<Operation> future = zoneOperationsClient.listPagedCallable().futureCall(request);
   *   // Do something.
   *   for (Operation element : future.get().iterateAll()) {
   *     // doThingsWith(element);
   *   }
   * }
   * }</pre>
   */
  public final UnaryCallable<ListZoneOperationsRequest, ListPagedResponse> listPagedCallable() {
    return stub.listPagedCallable();
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Retrieves a list of Operation resources contained within the specified zone.
   *
   * <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 (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
   *   ListZoneOperationsRequest request =
   *       ListZoneOperationsRequest.newBuilder()
   *           .setFilter("filter-1274492040")
   *           .setMaxResults(1128457243)
   *           .setOrderBy("orderBy-1207110587")
   *           .setPageToken("pageToken873572522")
   *           .setProject("project-309310695")
   *           .setReturnPartialSuccess(true)
   *           .setZone("zone3744684")
   *           .build();
   *   while (true) {
   *     OperationList response = zoneOperationsClient.listCallable().call(request);
   *     for (Operation element : response.getItemsList()) {
   *       // doThingsWith(element);
   *     }
   *     String nextPageToken = response.getNextPageToken();
   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
   *       request = request.toBuilder().setPageToken(nextPageToken).build();
   *     } else {
   *       break;
   *     }
   *   }
   * }
   * }</pre>
   */
  public final UnaryCallable<ListZoneOperationsRequest, OperationList> listCallable() {
    return stub.listCallable();
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Waits for the specified Operation resource to return as `DONE` or for the request to approach
   * the 2 minute deadline, and retrieves the specified Operation resource. This method waits for no
   * more than the 2 minutes and then returns the current state of the operation, which might be
   * `DONE` or still in progress. This method is called on a best-effort basis. Specifically: - In
   * uncommon cases, when the server is overloaded, the request might return before the default
   * deadline is reached, or might return after zero seconds. - If the default deadline is reached,
   * there is no guarantee that the operation is actually done when the method returns. Be prepared
   * to retry if the operation is not `DONE`.
   *
   * <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 (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
   *   String project = "project-309310695";
   *   String zone = "zone3744684";
   *   String operation = "operation1662702951";
   *   Operation response = zoneOperationsClient.wait(project, zone, operation);
   * }
   * }</pre>
   *
   * @param project Project ID for this request.
   * @param zone Name of the zone for this request.
   * @param operation Name of the Operations resource to return.
   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
   */
  public final Operation wait(String project, String zone, String operation) {
    WaitZoneOperationRequest request =
        WaitZoneOperationRequest.newBuilder()
            .setProject(project)
            .setZone(zone)
            .setOperation(operation)
            .build();
    return wait(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Waits for the specified Operation resource to return as `DONE` or for the request to approach
   * the 2 minute deadline, and retrieves the specified Operation resource. This method waits for no
   * more than the 2 minutes and then returns the current state of the operation, which might be
   * `DONE` or still in progress. This method is called on a best-effort basis. Specifically: - In
   * uncommon cases, when the server is overloaded, the request might return before the default
   * deadline is reached, or might return after zero seconds. - If the default deadline is reached,
   * there is no guarantee that the operation is actually done when the method returns. Be prepared
   * to retry if the operation is not `DONE`.
   *
   * <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 (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
   *   WaitZoneOperationRequest request =
   *       WaitZoneOperationRequest.newBuilder()
   *           .setOperation("operation1662702951")
   *           .setProject("project-309310695")
   *           .setZone("zone3744684")
   *           .build();
   *   Operation response = zoneOperationsClient.wait(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 Operation wait(WaitZoneOperationRequest request) {
    return waitCallable().call(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD.
  /**
   * Waits for the specified Operation resource to return as `DONE` or for the request to approach
   * the 2 minute deadline, and retrieves the specified Operation resource. This method waits for no
   * more than the 2 minutes and then returns the current state of the operation, which might be
   * `DONE` or still in progress. This method is called on a best-effort basis. Specifically: - In
   * uncommon cases, when the server is overloaded, the request might return before the default
   * deadline is reached, or might return after zero seconds. - If the default deadline is reached,
   * there is no guarantee that the operation is actually done when the method returns. Be prepared
   * to retry if the operation is not `DONE`.
   *
   * <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 (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
   *   WaitZoneOperationRequest request =
   *       WaitZoneOperationRequest.newBuilder()
   *           .setOperation("operation1662702951")
   *           .setProject("project-309310695")
   *           .setZone("zone3744684")
   *           .build();
   *   ApiFuture<Operation> future = zoneOperationsClient.waitCallable().futureCall(request);
   *   // Do something.
   *   Operation response = future.get();
   * }
   * }</pre>
   */
  public final UnaryCallable<WaitZoneOperationRequest, Operation> waitCallable() {
    return stub.waitCallable();
  }

  @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 ListPagedResponse
      extends AbstractPagedListResponse<
          ListZoneOperationsRequest, OperationList, Operation, ListPage, ListFixedSizeCollection> {

    public static ApiFuture<ListPagedResponse> createAsync(
        PageContext<ListZoneOperationsRequest, OperationList, Operation> context,
        ApiFuture<OperationList> futureResponse) {
      ApiFuture<ListPage> futurePage =
          ListPage.createEmptyPage().createPageAsync(context, futureResponse);
      return ApiFutures.transform(
          futurePage, input -> new ListPagedResponse(input), MoreExecutors.directExecutor());
    }

    private ListPagedResponse(ListPage page) {
      super(page, ListFixedSizeCollection.createEmptyCollection());
    }
  }

  public static class ListPage
      extends AbstractPage<ListZoneOperationsRequest, OperationList, Operation, ListPage> {

    private ListPage(
        PageContext<ListZoneOperationsRequest, OperationList, Operation> context,
        OperationList response) {
      super(context, response);
    }

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

    @Override
    protected ListPage createPage(
        PageContext<ListZoneOperationsRequest, OperationList, Operation> context,
        OperationList response) {
      return new ListPage(context, response);
    }

    @Override
    public ApiFuture<ListPage> createPageAsync(
        PageContext<ListZoneOperationsRequest, OperationList, Operation> context,
        ApiFuture<OperationList> futureResponse) {
      return super.createPageAsync(context, futureResponse);
    }
  }

  public static class ListFixedSizeCollection
      extends AbstractFixedSizeCollection<
          ListZoneOperationsRequest, OperationList, Operation, ListPage, ListFixedSizeCollection> {

    private ListFixedSizeCollection(List<ListPage> pages, int collectionSize) {
      super(pages, collectionSize);
    }

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

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