// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
// Code generated by Microsoft (R) AutoRest Code Generator.

package com.azure.resourcemanager.eventgrid.implementation;

import com.azure.core.annotation.BodyParam;
import com.azure.core.annotation.Delete;
import com.azure.core.annotation.ExpectedResponses;
import com.azure.core.annotation.Get;
import com.azure.core.annotation.HeaderParam;
import com.azure.core.annotation.Headers;
import com.azure.core.annotation.Host;
import com.azure.core.annotation.HostParam;
import com.azure.core.annotation.Patch;
import com.azure.core.annotation.PathParam;
import com.azure.core.annotation.Post;
import com.azure.core.annotation.Put;
import com.azure.core.annotation.QueryParam;
import com.azure.core.annotation.ReturnType;
import com.azure.core.annotation.ServiceInterface;
import com.azure.core.annotation.ServiceMethod;
import com.azure.core.annotation.UnexpectedResponseExceptionType;
import com.azure.core.http.rest.PagedFlux;
import com.azure.core.http.rest.PagedIterable;
import com.azure.core.http.rest.PagedResponse;
import com.azure.core.http.rest.PagedResponseBase;
import com.azure.core.http.rest.Response;
import com.azure.core.http.rest.RestProxy;
import com.azure.core.management.exception.ManagementException;
import com.azure.core.management.polling.PollResult;
import com.azure.core.util.Context;
import com.azure.core.util.FluxUtil;
import com.azure.core.util.polling.PollerFlux;
import com.azure.core.util.polling.SyncPoller;
import com.azure.resourcemanager.eventgrid.fluent.TopicsClient;
import com.azure.resourcemanager.eventgrid.fluent.models.EventTypeInner;
import com.azure.resourcemanager.eventgrid.fluent.models.TopicInner;
import com.azure.resourcemanager.eventgrid.fluent.models.TopicSharedAccessKeysInner;
import com.azure.resourcemanager.eventgrid.models.EventTypesListResult;
import com.azure.resourcemanager.eventgrid.models.TopicRegenerateKeyRequest;
import com.azure.resourcemanager.eventgrid.models.TopicUpdateParameters;
import com.azure.resourcemanager.eventgrid.models.TopicsListResult;
import java.nio.ByteBuffer;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;

/** An instance of this class provides access to all the operations defined in TopicsClient. */
public final class TopicsClientImpl implements TopicsClient {
    /** The proxy service used to perform REST calls. */
    private final TopicsService service;

    /** The service client containing this operation class. */
    private final EventGridManagementClientImpl client;

    /**
     * Initializes an instance of TopicsClientImpl.
     *
     * @param client the instance of the service client containing this operation class.
     */
    TopicsClientImpl(EventGridManagementClientImpl client) {
        this.service = RestProxy.create(TopicsService.class, client.getHttpPipeline(), client.getSerializerAdapter());
        this.client = client;
    }

    /**
     * The interface defining all the services for EventGridManagementClientTopics to be used by the proxy service to
     * perform REST calls.
     */
    @Host("{$host}")
    @ServiceInterface(name = "EventGridManagementC")
    public interface TopicsService {
        @Headers({"Content-Type: application/json"})
        @Get(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventGrid/topics/{topicName}")
        @ExpectedResponses({200})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<TopicInner>> getByResourceGroup(
            @HostParam("$host") String endpoint,
            @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("topicName") String topicName,
            @QueryParam("api-version") String apiVersion,
            @HeaderParam("Accept") String accept,
            Context context);

        @Headers({"Content-Type: application/json"})
        @Put(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventGrid/topics/{topicName}")
        @ExpectedResponses({201})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<Flux<ByteBuffer>>> createOrUpdate(
            @HostParam("$host") String endpoint,
            @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("topicName") String topicName,
            @QueryParam("api-version") String apiVersion,
            @BodyParam("application/json") TopicInner topicInfo,
            @HeaderParam("Accept") String accept,
            Context context);

        @Headers({"Accept: application/json;q=0.9", "Content-Type: application/json"})
        @Delete(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventGrid/topics/{topicName}")
        @ExpectedResponses({202, 204})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<Flux<ByteBuffer>>> delete(
            @HostParam("$host") String endpoint,
            @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("topicName") String topicName,
            @QueryParam("api-version") String apiVersion,
            Context context);

        @Headers({"Content-Type: application/json"})
        @Patch(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventGrid/topics/{topicName}")
        @ExpectedResponses({200, 201})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<Flux<ByteBuffer>>> update(
            @HostParam("$host") String endpoint,
            @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("topicName") String topicName,
            @QueryParam("api-version") String apiVersion,
            @BodyParam("application/json") TopicUpdateParameters topicUpdateParameters,
            @HeaderParam("Accept") String accept,
            Context context);

        @Headers({"Content-Type: application/json"})
        @Get("/subscriptions/{subscriptionId}/providers/Microsoft.EventGrid/topics")
        @ExpectedResponses({200})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<TopicsListResult>> list(
            @HostParam("$host") String endpoint,
            @PathParam("subscriptionId") String subscriptionId,
            @QueryParam("api-version") String apiVersion,
            @QueryParam("$filter") String filter,
            @QueryParam("$top") Integer top,
            @HeaderParam("Accept") String accept,
            Context context);

        @Headers({"Content-Type: application/json"})
        @Get("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventGrid/topics")
        @ExpectedResponses({200})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<TopicsListResult>> listByResourceGroup(
            @HostParam("$host") String endpoint,
            @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName,
            @QueryParam("api-version") String apiVersion,
            @QueryParam("$filter") String filter,
            @QueryParam("$top") Integer top,
            @HeaderParam("Accept") String accept,
            Context context);

        @Headers({"Content-Type: application/json"})
        @Post(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventGrid/topics/{topicName}/listKeys")
        @ExpectedResponses({200})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<TopicSharedAccessKeysInner>> listSharedAccessKeys(
            @HostParam("$host") String endpoint,
            @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("topicName") String topicName,
            @QueryParam("api-version") String apiVersion,
            @HeaderParam("Accept") String accept,
            Context context);

        @Headers({"Content-Type: application/json"})
        @Post(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventGrid/topics/{topicName}/regenerateKey")
        @ExpectedResponses({200, 202})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<Flux<ByteBuffer>>> regenerateKey(
            @HostParam("$host") String endpoint,
            @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("topicName") String topicName,
            @QueryParam("api-version") String apiVersion,
            @BodyParam("application/json") TopicRegenerateKeyRequest regenerateKeyRequest,
            @HeaderParam("Accept") String accept,
            Context context);

        @Headers({"Content-Type: application/json"})
        @Get(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/{providerNamespace}/{resourceTypeName}/{resourceName}/providers/Microsoft.EventGrid/eventTypes")
        @ExpectedResponses({200})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<EventTypesListResult>> listEventTypes(
            @HostParam("$host") String endpoint,
            @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("providerNamespace") String providerNamespace,
            @PathParam("resourceTypeName") String resourceTypeName,
            @PathParam("resourceName") String resourceName,
            @QueryParam("api-version") String apiVersion,
            @HeaderParam("Accept") String accept,
            Context context);

        @Headers({"Content-Type: application/json"})
        @Get("{nextLink}")
        @ExpectedResponses({200})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<TopicsListResult>> listBySubscriptionNext(
            @PathParam(value = "nextLink", encoded = true) String nextLink,
            @HostParam("$host") String endpoint,
            @HeaderParam("Accept") String accept,
            Context context);

        @Headers({"Content-Type: application/json"})
        @Get("{nextLink}")
        @ExpectedResponses({200})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<TopicsListResult>> listByResourceGroupNext(
            @PathParam(value = "nextLink", encoded = true) String nextLink,
            @HostParam("$host") String endpoint,
            @HeaderParam("Accept") String accept,
            Context context);
    }

    /**
     * Get a topic.
     *
     * <p>Get properties of a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return properties of a topic along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<TopicInner>> getByResourceGroupWithResponseAsync(String resourceGroupName, String topicName) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .getByResourceGroup(
                            this.client.getEndpoint(),
                            this.client.getSubscriptionId(),
                            resourceGroupName,
                            topicName,
                            this.client.getApiVersion(),
                            accept,
                            context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Get a topic.
     *
     * <p>Get properties of a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return properties of a topic along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<TopicInner>> getByResourceGroupWithResponseAsync(
        String resourceGroupName, String topicName, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .getByResourceGroup(
                this.client.getEndpoint(),
                this.client.getSubscriptionId(),
                resourceGroupName,
                topicName,
                this.client.getApiVersion(),
                accept,
                context);
    }

    /**
     * Get a topic.
     *
     * <p>Get properties of a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return properties of a topic on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<TopicInner> getByResourceGroupAsync(String resourceGroupName, String topicName) {
        return getByResourceGroupWithResponseAsync(resourceGroupName, topicName)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Get a topic.
     *
     * <p>Get properties of a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return properties of a topic along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response<TopicInner> getByResourceGroupWithResponse(
        String resourceGroupName, String topicName, Context context) {
        return getByResourceGroupWithResponseAsync(resourceGroupName, topicName, context).block();
    }

    /**
     * Get a topic.
     *
     * <p>Get properties of a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return properties of a topic.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public TopicInner getByResourceGroup(String resourceGroupName, String topicName) {
        return getByResourceGroupWithResponse(resourceGroupName, topicName, Context.NONE).getValue();
    }

    /**
     * Create a topic.
     *
     * <p>Asynchronously creates a new topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicInfo Topic information.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return eventGrid Topic along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<Flux<ByteBuffer>>> createOrUpdateWithResponseAsync(
        String resourceGroupName, String topicName, TopicInner topicInfo) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        if (topicInfo == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicInfo is required and cannot be null."));
        } else {
            topicInfo.validate();
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .createOrUpdate(
                            this.client.getEndpoint(),
                            this.client.getSubscriptionId(),
                            resourceGroupName,
                            topicName,
                            this.client.getApiVersion(),
                            topicInfo,
                            accept,
                            context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Create a topic.
     *
     * <p>Asynchronously creates a new topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicInfo Topic information.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return eventGrid Topic along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<Flux<ByteBuffer>>> createOrUpdateWithResponseAsync(
        String resourceGroupName, String topicName, TopicInner topicInfo, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        if (topicInfo == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicInfo is required and cannot be null."));
        } else {
            topicInfo.validate();
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .createOrUpdate(
                this.client.getEndpoint(),
                this.client.getSubscriptionId(),
                resourceGroupName,
                topicName,
                this.client.getApiVersion(),
                topicInfo,
                accept,
                context);
    }

    /**
     * Create a topic.
     *
     * <p>Asynchronously creates a new topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicInfo Topic information.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link PollerFlux} for polling of eventGrid Topic.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    private PollerFlux<PollResult<TopicInner>, TopicInner> beginCreateOrUpdateAsync(
        String resourceGroupName, String topicName, TopicInner topicInfo) {
        Mono<Response<Flux<ByteBuffer>>> mono =
            createOrUpdateWithResponseAsync(resourceGroupName, topicName, topicInfo);
        return this
            .client
            .<TopicInner, TopicInner>getLroResult(
                mono, this.client.getHttpPipeline(), TopicInner.class, TopicInner.class, this.client.getContext());
    }

    /**
     * Create a topic.
     *
     * <p>Asynchronously creates a new topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicInfo Topic information.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link PollerFlux} for polling of eventGrid Topic.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    private PollerFlux<PollResult<TopicInner>, TopicInner> beginCreateOrUpdateAsync(
        String resourceGroupName, String topicName, TopicInner topicInfo, Context context) {
        context = this.client.mergeContext(context);
        Mono<Response<Flux<ByteBuffer>>> mono =
            createOrUpdateWithResponseAsync(resourceGroupName, topicName, topicInfo, context);
        return this
            .client
            .<TopicInner, TopicInner>getLroResult(
                mono, this.client.getHttpPipeline(), TopicInner.class, TopicInner.class, context);
    }

    /**
     * Create a topic.
     *
     * <p>Asynchronously creates a new topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicInfo Topic information.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link SyncPoller} for polling of eventGrid Topic.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller<PollResult<TopicInner>, TopicInner> beginCreateOrUpdate(
        String resourceGroupName, String topicName, TopicInner topicInfo) {
        return this.beginCreateOrUpdateAsync(resourceGroupName, topicName, topicInfo).getSyncPoller();
    }

    /**
     * Create a topic.
     *
     * <p>Asynchronously creates a new topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicInfo Topic information.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link SyncPoller} for polling of eventGrid Topic.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller<PollResult<TopicInner>, TopicInner> beginCreateOrUpdate(
        String resourceGroupName, String topicName, TopicInner topicInfo, Context context) {
        return this.beginCreateOrUpdateAsync(resourceGroupName, topicName, topicInfo, context).getSyncPoller();
    }

    /**
     * Create a topic.
     *
     * <p>Asynchronously creates a new topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicInfo Topic information.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return eventGrid Topic on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<TopicInner> createOrUpdateAsync(String resourceGroupName, String topicName, TopicInner topicInfo) {
        return beginCreateOrUpdateAsync(resourceGroupName, topicName, topicInfo)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Create a topic.
     *
     * <p>Asynchronously creates a new topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicInfo Topic information.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return eventGrid Topic on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<TopicInner> createOrUpdateAsync(
        String resourceGroupName, String topicName, TopicInner topicInfo, Context context) {
        return beginCreateOrUpdateAsync(resourceGroupName, topicName, topicInfo, context)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Create a topic.
     *
     * <p>Asynchronously creates a new topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicInfo Topic information.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return eventGrid Topic.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public TopicInner createOrUpdate(String resourceGroupName, String topicName, TopicInner topicInfo) {
        return createOrUpdateAsync(resourceGroupName, topicName, topicInfo).block();
    }

    /**
     * Create a topic.
     *
     * <p>Asynchronously creates a new topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicInfo Topic information.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return eventGrid Topic.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public TopicInner createOrUpdate(
        String resourceGroupName, String topicName, TopicInner topicInfo, Context context) {
        return createOrUpdateAsync(resourceGroupName, topicName, topicInfo, context).block();
    }

    /**
     * Delete a topic.
     *
     * <p>Delete existing topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<Flux<ByteBuffer>>> deleteWithResponseAsync(String resourceGroupName, String topicName) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        return FluxUtil
            .withContext(
                context ->
                    service
                        .delete(
                            this.client.getEndpoint(),
                            this.client.getSubscriptionId(),
                            resourceGroupName,
                            topicName,
                            this.client.getApiVersion(),
                            context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Delete a topic.
     *
     * <p>Delete existing topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<Flux<ByteBuffer>>> deleteWithResponseAsync(
        String resourceGroupName, String topicName, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        context = this.client.mergeContext(context);
        return service
            .delete(
                this.client.getEndpoint(),
                this.client.getSubscriptionId(),
                resourceGroupName,
                topicName,
                this.client.getApiVersion(),
                context);
    }

    /**
     * Delete a topic.
     *
     * <p>Delete existing topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link PollerFlux} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    private PollerFlux<PollResult<Void>, Void> beginDeleteAsync(String resourceGroupName, String topicName) {
        Mono<Response<Flux<ByteBuffer>>> mono = deleteWithResponseAsync(resourceGroupName, topicName);
        return this
            .client
            .<Void, Void>getLroResult(
                mono, this.client.getHttpPipeline(), Void.class, Void.class, this.client.getContext());
    }

    /**
     * Delete a topic.
     *
     * <p>Delete existing topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link PollerFlux} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    private PollerFlux<PollResult<Void>, Void> beginDeleteAsync(
        String resourceGroupName, String topicName, Context context) {
        context = this.client.mergeContext(context);
        Mono<Response<Flux<ByteBuffer>>> mono = deleteWithResponseAsync(resourceGroupName, topicName, context);
        return this
            .client
            .<Void, Void>getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class, context);
    }

    /**
     * Delete a topic.
     *
     * <p>Delete existing topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link SyncPoller} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller<PollResult<Void>, Void> beginDelete(String resourceGroupName, String topicName) {
        return this.beginDeleteAsync(resourceGroupName, topicName).getSyncPoller();
    }

    /**
     * Delete a topic.
     *
     * <p>Delete existing topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link SyncPoller} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller<PollResult<Void>, Void> beginDelete(String resourceGroupName, String topicName, Context context) {
        return this.beginDeleteAsync(resourceGroupName, topicName, context).getSyncPoller();
    }

    /**
     * Delete a topic.
     *
     * <p>Delete existing topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return A {@link Mono} that completes when a successful response is received.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Void> deleteAsync(String resourceGroupName, String topicName) {
        return beginDeleteAsync(resourceGroupName, topicName).last().flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Delete a topic.
     *
     * <p>Delete existing topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return A {@link Mono} that completes when a successful response is received.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Void> deleteAsync(String resourceGroupName, String topicName, Context context) {
        return beginDeleteAsync(resourceGroupName, topicName, context)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Delete a topic.
     *
     * <p>Delete existing topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public void delete(String resourceGroupName, String topicName) {
        deleteAsync(resourceGroupName, topicName).block();
    }

    /**
     * Delete a topic.
     *
     * <p>Delete existing topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public void delete(String resourceGroupName, String topicName, Context context) {
        deleteAsync(resourceGroupName, topicName, context).block();
    }

    /**
     * Update a topic.
     *
     * <p>Asynchronously updates a topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicUpdateParameters Topic update information.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the response body along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<Flux<ByteBuffer>>> updateWithResponseAsync(
        String resourceGroupName, String topicName, TopicUpdateParameters topicUpdateParameters) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        if (topicUpdateParameters == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter topicUpdateParameters is required and cannot be null."));
        } else {
            topicUpdateParameters.validate();
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .update(
                            this.client.getEndpoint(),
                            this.client.getSubscriptionId(),
                            resourceGroupName,
                            topicName,
                            this.client.getApiVersion(),
                            topicUpdateParameters,
                            accept,
                            context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Update a topic.
     *
     * <p>Asynchronously updates a topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicUpdateParameters Topic update information.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the response body along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<Flux<ByteBuffer>>> updateWithResponseAsync(
        String resourceGroupName, String topicName, TopicUpdateParameters topicUpdateParameters, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        if (topicUpdateParameters == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter topicUpdateParameters is required and cannot be null."));
        } else {
            topicUpdateParameters.validate();
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .update(
                this.client.getEndpoint(),
                this.client.getSubscriptionId(),
                resourceGroupName,
                topicName,
                this.client.getApiVersion(),
                topicUpdateParameters,
                accept,
                context);
    }

    /**
     * Update a topic.
     *
     * <p>Asynchronously updates a topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicUpdateParameters Topic update information.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link PollerFlux} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    private PollerFlux<PollResult<TopicInner>, TopicInner> beginUpdateAsync(
        String resourceGroupName, String topicName, TopicUpdateParameters topicUpdateParameters) {
        Mono<Response<Flux<ByteBuffer>>> mono =
            updateWithResponseAsync(resourceGroupName, topicName, topicUpdateParameters);
        return this
            .client
            .<TopicInner, TopicInner>getLroResult(
                mono, this.client.getHttpPipeline(), TopicInner.class, TopicInner.class, this.client.getContext());
    }

    /**
     * Update a topic.
     *
     * <p>Asynchronously updates a topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicUpdateParameters Topic update information.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link PollerFlux} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    private PollerFlux<PollResult<TopicInner>, TopicInner> beginUpdateAsync(
        String resourceGroupName, String topicName, TopicUpdateParameters topicUpdateParameters, Context context) {
        context = this.client.mergeContext(context);
        Mono<Response<Flux<ByteBuffer>>> mono =
            updateWithResponseAsync(resourceGroupName, topicName, topicUpdateParameters, context);
        return this
            .client
            .<TopicInner, TopicInner>getLroResult(
                mono, this.client.getHttpPipeline(), TopicInner.class, TopicInner.class, context);
    }

    /**
     * Update a topic.
     *
     * <p>Asynchronously updates a topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicUpdateParameters Topic update information.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link SyncPoller} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller<PollResult<TopicInner>, TopicInner> beginUpdate(
        String resourceGroupName, String topicName, TopicUpdateParameters topicUpdateParameters) {
        return this.beginUpdateAsync(resourceGroupName, topicName, topicUpdateParameters).getSyncPoller();
    }

    /**
     * Update a topic.
     *
     * <p>Asynchronously updates a topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicUpdateParameters Topic update information.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link SyncPoller} for polling of long-running operation.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller<PollResult<TopicInner>, TopicInner> beginUpdate(
        String resourceGroupName, String topicName, TopicUpdateParameters topicUpdateParameters, Context context) {
        return this.beginUpdateAsync(resourceGroupName, topicName, topicUpdateParameters, context).getSyncPoller();
    }

    /**
     * Update a topic.
     *
     * <p>Asynchronously updates a topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicUpdateParameters Topic update information.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the response body on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<TopicInner> updateAsync(
        String resourceGroupName, String topicName, TopicUpdateParameters topicUpdateParameters) {
        return beginUpdateAsync(resourceGroupName, topicName, topicUpdateParameters)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Update a topic.
     *
     * <p>Asynchronously updates a topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicUpdateParameters Topic update information.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the response body on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<TopicInner> updateAsync(
        String resourceGroupName, String topicName, TopicUpdateParameters topicUpdateParameters, Context context) {
        return beginUpdateAsync(resourceGroupName, topicName, topicUpdateParameters, context)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Update a topic.
     *
     * <p>Asynchronously updates a topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicUpdateParameters Topic update information.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the response.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public TopicInner update(String resourceGroupName, String topicName, TopicUpdateParameters topicUpdateParameters) {
        return updateAsync(resourceGroupName, topicName, topicUpdateParameters).block();
    }

    /**
     * Update a topic.
     *
     * <p>Asynchronously updates a topic with the specified parameters.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param topicUpdateParameters Topic update information.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the response.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public TopicInner update(
        String resourceGroupName, String topicName, TopicUpdateParameters topicUpdateParameters, Context context) {
        return updateAsync(resourceGroupName, topicName, topicUpdateParameters, context).block();
    }

    /**
     * List topics under an Azure subscription.
     *
     * <p>List all the topics under an Azure subscription.
     *
     * @param filter The query used to filter the search results using OData syntax. Filtering is permitted on the
     *     'name' property only and with limited number of OData operations. These operations are: the 'contains'
     *     function as well as the following logical operations: not, and, or, eq (for equal), and ne (for not equal).
     *     No arithmetic operations are supported. The following is a valid filter example: $filter=contains(namE,
     *     'PATTERN') and name ne 'PATTERN-1'. The following is not a valid filter example: $filter=location eq
     *     'westus'.
     * @param top The number of results to return per page for the list operation. Valid range for top parameter is 1 to
     *     100. If not specified, the default number of results to be returned is 20 items per page.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation along with {@link PagedResponse} on successful completion of {@link
     *     Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<PagedResponse<TopicInner>> listSinglePageAsync(String filter, Integer top) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .list(
                            this.client.getEndpoint(),
                            this.client.getSubscriptionId(),
                            this.client.getApiVersion(),
                            filter,
                            top,
                            accept,
                            context))
            .<PagedResponse<TopicInner>>map(
                res ->
                    new PagedResponseBase<>(
                        res.getRequest(),
                        res.getStatusCode(),
                        res.getHeaders(),
                        res.getValue().value(),
                        res.getValue().nextLink(),
                        null))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * List topics under an Azure subscription.
     *
     * <p>List all the topics under an Azure subscription.
     *
     * @param filter The query used to filter the search results using OData syntax. Filtering is permitted on the
     *     'name' property only and with limited number of OData operations. These operations are: the 'contains'
     *     function as well as the following logical operations: not, and, or, eq (for equal), and ne (for not equal).
     *     No arithmetic operations are supported. The following is a valid filter example: $filter=contains(namE,
     *     'PATTERN') and name ne 'PATTERN-1'. The following is not a valid filter example: $filter=location eq
     *     'westus'.
     * @param top The number of results to return per page for the list operation. Valid range for top parameter is 1 to
     *     100. If not specified, the default number of results to be returned is 20 items per page.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation along with {@link PagedResponse} on successful completion of {@link
     *     Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<PagedResponse<TopicInner>> listSinglePageAsync(String filter, Integer top, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .list(
                this.client.getEndpoint(),
                this.client.getSubscriptionId(),
                this.client.getApiVersion(),
                filter,
                top,
                accept,
                context)
            .map(
                res ->
                    new PagedResponseBase<>(
                        res.getRequest(),
                        res.getStatusCode(),
                        res.getHeaders(),
                        res.getValue().value(),
                        res.getValue().nextLink(),
                        null));
    }

    /**
     * List topics under an Azure subscription.
     *
     * <p>List all the topics under an Azure subscription.
     *
     * @param filter The query used to filter the search results using OData syntax. Filtering is permitted on the
     *     'name' property only and with limited number of OData operations. These operations are: the 'contains'
     *     function as well as the following logical operations: not, and, or, eq (for equal), and ne (for not equal).
     *     No arithmetic operations are supported. The following is a valid filter example: $filter=contains(namE,
     *     'PATTERN') and name ne 'PATTERN-1'. The following is not a valid filter example: $filter=location eq
     *     'westus'.
     * @param top The number of results to return per page for the list operation. Valid range for top parameter is 1 to
     *     100. If not specified, the default number of results to be returned is 20 items per page.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux<TopicInner> listAsync(String filter, Integer top) {
        return new PagedFlux<>(
            () -> listSinglePageAsync(filter, top), nextLink -> listBySubscriptionNextSinglePageAsync(nextLink));
    }

    /**
     * List topics under an Azure subscription.
     *
     * <p>List all the topics under an Azure subscription.
     *
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux<TopicInner> listAsync() {
        final String filter = null;
        final Integer top = null;
        return new PagedFlux<>(
            () -> listSinglePageAsync(filter, top), nextLink -> listBySubscriptionNextSinglePageAsync(nextLink));
    }

    /**
     * List topics under an Azure subscription.
     *
     * <p>List all the topics under an Azure subscription.
     *
     * @param filter The query used to filter the search results using OData syntax. Filtering is permitted on the
     *     'name' property only and with limited number of OData operations. These operations are: the 'contains'
     *     function as well as the following logical operations: not, and, or, eq (for equal), and ne (for not equal).
     *     No arithmetic operations are supported. The following is a valid filter example: $filter=contains(namE,
     *     'PATTERN') and name ne 'PATTERN-1'. The following is not a valid filter example: $filter=location eq
     *     'westus'.
     * @param top The number of results to return per page for the list operation. Valid range for top parameter is 1 to
     *     100. If not specified, the default number of results to be returned is 20 items per page.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux<TopicInner> listAsync(String filter, Integer top, Context context) {
        return new PagedFlux<>(
            () -> listSinglePageAsync(filter, top, context),
            nextLink -> listBySubscriptionNextSinglePageAsync(nextLink, context));
    }

    /**
     * List topics under an Azure subscription.
     *
     * <p>List all the topics under an Azure subscription.
     *
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable<TopicInner> list() {
        final String filter = null;
        final Integer top = null;
        return new PagedIterable<>(listAsync(filter, top));
    }

    /**
     * List topics under an Azure subscription.
     *
     * <p>List all the topics under an Azure subscription.
     *
     * @param filter The query used to filter the search results using OData syntax. Filtering is permitted on the
     *     'name' property only and with limited number of OData operations. These operations are: the 'contains'
     *     function as well as the following logical operations: not, and, or, eq (for equal), and ne (for not equal).
     *     No arithmetic operations are supported. The following is a valid filter example: $filter=contains(namE,
     *     'PATTERN') and name ne 'PATTERN-1'. The following is not a valid filter example: $filter=location eq
     *     'westus'.
     * @param top The number of results to return per page for the list operation. Valid range for top parameter is 1 to
     *     100. If not specified, the default number of results to be returned is 20 items per page.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable<TopicInner> list(String filter, Integer top, Context context) {
        return new PagedIterable<>(listAsync(filter, top, context));
    }

    /**
     * List topics under a resource group.
     *
     * <p>List all the topics under a resource group.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param filter The query used to filter the search results using OData syntax. Filtering is permitted on the
     *     'name' property only and with limited number of OData operations. These operations are: the 'contains'
     *     function as well as the following logical operations: not, and, or, eq (for equal), and ne (for not equal).
     *     No arithmetic operations are supported. The following is a valid filter example: $filter=contains(namE,
     *     'PATTERN') and name ne 'PATTERN-1'. The following is not a valid filter example: $filter=location eq
     *     'westus'.
     * @param top The number of results to return per page for the list operation. Valid range for top parameter is 1 to
     *     100. If not specified, the default number of results to be returned is 20 items per page.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation along with {@link PagedResponse} on successful completion of {@link
     *     Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<PagedResponse<TopicInner>> listByResourceGroupSinglePageAsync(
        String resourceGroupName, String filter, Integer top) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .listByResourceGroup(
                            this.client.getEndpoint(),
                            this.client.getSubscriptionId(),
                            resourceGroupName,
                            this.client.getApiVersion(),
                            filter,
                            top,
                            accept,
                            context))
            .<PagedResponse<TopicInner>>map(
                res ->
                    new PagedResponseBase<>(
                        res.getRequest(),
                        res.getStatusCode(),
                        res.getHeaders(),
                        res.getValue().value(),
                        res.getValue().nextLink(),
                        null))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * List topics under a resource group.
     *
     * <p>List all the topics under a resource group.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param filter The query used to filter the search results using OData syntax. Filtering is permitted on the
     *     'name' property only and with limited number of OData operations. These operations are: the 'contains'
     *     function as well as the following logical operations: not, and, or, eq (for equal), and ne (for not equal).
     *     No arithmetic operations are supported. The following is a valid filter example: $filter=contains(namE,
     *     'PATTERN') and name ne 'PATTERN-1'. The following is not a valid filter example: $filter=location eq
     *     'westus'.
     * @param top The number of results to return per page for the list operation. Valid range for top parameter is 1 to
     *     100. If not specified, the default number of results to be returned is 20 items per page.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation along with {@link PagedResponse} on successful completion of {@link
     *     Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<PagedResponse<TopicInner>> listByResourceGroupSinglePageAsync(
        String resourceGroupName, String filter, Integer top, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .listByResourceGroup(
                this.client.getEndpoint(),
                this.client.getSubscriptionId(),
                resourceGroupName,
                this.client.getApiVersion(),
                filter,
                top,
                accept,
                context)
            .map(
                res ->
                    new PagedResponseBase<>(
                        res.getRequest(),
                        res.getStatusCode(),
                        res.getHeaders(),
                        res.getValue().value(),
                        res.getValue().nextLink(),
                        null));
    }

    /**
     * List topics under a resource group.
     *
     * <p>List all the topics under a resource group.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param filter The query used to filter the search results using OData syntax. Filtering is permitted on the
     *     'name' property only and with limited number of OData operations. These operations are: the 'contains'
     *     function as well as the following logical operations: not, and, or, eq (for equal), and ne (for not equal).
     *     No arithmetic operations are supported. The following is a valid filter example: $filter=contains(namE,
     *     'PATTERN') and name ne 'PATTERN-1'. The following is not a valid filter example: $filter=location eq
     *     'westus'.
     * @param top The number of results to return per page for the list operation. Valid range for top parameter is 1 to
     *     100. If not specified, the default number of results to be returned is 20 items per page.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux<TopicInner> listByResourceGroupAsync(String resourceGroupName, String filter, Integer top) {
        return new PagedFlux<>(
            () -> listByResourceGroupSinglePageAsync(resourceGroupName, filter, top),
            nextLink -> listByResourceGroupNextSinglePageAsync(nextLink));
    }

    /**
     * List topics under a resource group.
     *
     * <p>List all the topics under a resource group.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux<TopicInner> listByResourceGroupAsync(String resourceGroupName) {
        final String filter = null;
        final Integer top = null;
        return new PagedFlux<>(
            () -> listByResourceGroupSinglePageAsync(resourceGroupName, filter, top),
            nextLink -> listByResourceGroupNextSinglePageAsync(nextLink));
    }

    /**
     * List topics under a resource group.
     *
     * <p>List all the topics under a resource group.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param filter The query used to filter the search results using OData syntax. Filtering is permitted on the
     *     'name' property only and with limited number of OData operations. These operations are: the 'contains'
     *     function as well as the following logical operations: not, and, or, eq (for equal), and ne (for not equal).
     *     No arithmetic operations are supported. The following is a valid filter example: $filter=contains(namE,
     *     'PATTERN') and name ne 'PATTERN-1'. The following is not a valid filter example: $filter=location eq
     *     'westus'.
     * @param top The number of results to return per page for the list operation. Valid range for top parameter is 1 to
     *     100. If not specified, the default number of results to be returned is 20 items per page.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux<TopicInner> listByResourceGroupAsync(
        String resourceGroupName, String filter, Integer top, Context context) {
        return new PagedFlux<>(
            () -> listByResourceGroupSinglePageAsync(resourceGroupName, filter, top, context),
            nextLink -> listByResourceGroupNextSinglePageAsync(nextLink, context));
    }

    /**
     * List topics under a resource group.
     *
     * <p>List all the topics under a resource group.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable<TopicInner> listByResourceGroup(String resourceGroupName) {
        final String filter = null;
        final Integer top = null;
        return new PagedIterable<>(listByResourceGroupAsync(resourceGroupName, filter, top));
    }

    /**
     * List topics under a resource group.
     *
     * <p>List all the topics under a resource group.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param filter The query used to filter the search results using OData syntax. Filtering is permitted on the
     *     'name' property only and with limited number of OData operations. These operations are: the 'contains'
     *     function as well as the following logical operations: not, and, or, eq (for equal), and ne (for not equal).
     *     No arithmetic operations are supported. The following is a valid filter example: $filter=contains(namE,
     *     'PATTERN') and name ne 'PATTERN-1'. The following is not a valid filter example: $filter=location eq
     *     'westus'.
     * @param top The number of results to return per page for the list operation. Valid range for top parameter is 1 to
     *     100. If not specified, the default number of results to be returned is 20 items per page.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable<TopicInner> listByResourceGroup(
        String resourceGroupName, String filter, Integer top, Context context) {
        return new PagedIterable<>(listByResourceGroupAsync(resourceGroupName, filter, top, context));
    }

    /**
     * List keys for a topic.
     *
     * <p>List the two keys used to publish to a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return shared access keys of the Topic along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<TopicSharedAccessKeysInner>> listSharedAccessKeysWithResponseAsync(
        String resourceGroupName, String topicName) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .listSharedAccessKeys(
                            this.client.getEndpoint(),
                            this.client.getSubscriptionId(),
                            resourceGroupName,
                            topicName,
                            this.client.getApiVersion(),
                            accept,
                            context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * List keys for a topic.
     *
     * <p>List the two keys used to publish to a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return shared access keys of the Topic along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<TopicSharedAccessKeysInner>> listSharedAccessKeysWithResponseAsync(
        String resourceGroupName, String topicName, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .listSharedAccessKeys(
                this.client.getEndpoint(),
                this.client.getSubscriptionId(),
                resourceGroupName,
                topicName,
                this.client.getApiVersion(),
                accept,
                context);
    }

    /**
     * List keys for a topic.
     *
     * <p>List the two keys used to publish to a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return shared access keys of the Topic on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<TopicSharedAccessKeysInner> listSharedAccessKeysAsync(String resourceGroupName, String topicName) {
        return listSharedAccessKeysWithResponseAsync(resourceGroupName, topicName)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * List keys for a topic.
     *
     * <p>List the two keys used to publish to a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return shared access keys of the Topic along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response<TopicSharedAccessKeysInner> listSharedAccessKeysWithResponse(
        String resourceGroupName, String topicName, Context context) {
        return listSharedAccessKeysWithResponseAsync(resourceGroupName, topicName, context).block();
    }

    /**
     * List keys for a topic.
     *
     * <p>List the two keys used to publish to a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return shared access keys of the Topic.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public TopicSharedAccessKeysInner listSharedAccessKeys(String resourceGroupName, String topicName) {
        return listSharedAccessKeysWithResponse(resourceGroupName, topicName, Context.NONE).getValue();
    }

    /**
     * Regenerate key for a topic.
     *
     * <p>Regenerate a shared access key for a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param regenerateKeyRequest Request body to regenerate key.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return shared access keys of the Topic along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<Flux<ByteBuffer>>> regenerateKeyWithResponseAsync(
        String resourceGroupName, String topicName, TopicRegenerateKeyRequest regenerateKeyRequest) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        if (regenerateKeyRequest == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter regenerateKeyRequest is required and cannot be null."));
        } else {
            regenerateKeyRequest.validate();
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .regenerateKey(
                            this.client.getEndpoint(),
                            this.client.getSubscriptionId(),
                            resourceGroupName,
                            topicName,
                            this.client.getApiVersion(),
                            regenerateKeyRequest,
                            accept,
                            context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Regenerate key for a topic.
     *
     * <p>Regenerate a shared access key for a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param regenerateKeyRequest Request body to regenerate key.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return shared access keys of the Topic along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<Flux<ByteBuffer>>> regenerateKeyWithResponseAsync(
        String resourceGroupName, String topicName, TopicRegenerateKeyRequest regenerateKeyRequest, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (topicName == null) {
            return Mono.error(new IllegalArgumentException("Parameter topicName is required and cannot be null."));
        }
        if (regenerateKeyRequest == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter regenerateKeyRequest is required and cannot be null."));
        } else {
            regenerateKeyRequest.validate();
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .regenerateKey(
                this.client.getEndpoint(),
                this.client.getSubscriptionId(),
                resourceGroupName,
                topicName,
                this.client.getApiVersion(),
                regenerateKeyRequest,
                accept,
                context);
    }

    /**
     * Regenerate key for a topic.
     *
     * <p>Regenerate a shared access key for a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param regenerateKeyRequest Request body to regenerate key.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link PollerFlux} for polling of shared access keys of the Topic.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    private PollerFlux<PollResult<TopicSharedAccessKeysInner>, TopicSharedAccessKeysInner> beginRegenerateKeyAsync(
        String resourceGroupName, String topicName, TopicRegenerateKeyRequest regenerateKeyRequest) {
        Mono<Response<Flux<ByteBuffer>>> mono =
            regenerateKeyWithResponseAsync(resourceGroupName, topicName, regenerateKeyRequest);
        return this
            .client
            .<TopicSharedAccessKeysInner, TopicSharedAccessKeysInner>getLroResult(
                mono,
                this.client.getHttpPipeline(),
                TopicSharedAccessKeysInner.class,
                TopicSharedAccessKeysInner.class,
                this.client.getContext());
    }

    /**
     * Regenerate key for a topic.
     *
     * <p>Regenerate a shared access key for a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param regenerateKeyRequest Request body to regenerate key.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link PollerFlux} for polling of shared access keys of the Topic.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    private PollerFlux<PollResult<TopicSharedAccessKeysInner>, TopicSharedAccessKeysInner> beginRegenerateKeyAsync(
        String resourceGroupName, String topicName, TopicRegenerateKeyRequest regenerateKeyRequest, Context context) {
        context = this.client.mergeContext(context);
        Mono<Response<Flux<ByteBuffer>>> mono =
            regenerateKeyWithResponseAsync(resourceGroupName, topicName, regenerateKeyRequest, context);
        return this
            .client
            .<TopicSharedAccessKeysInner, TopicSharedAccessKeysInner>getLroResult(
                mono,
                this.client.getHttpPipeline(),
                TopicSharedAccessKeysInner.class,
                TopicSharedAccessKeysInner.class,
                context);
    }

    /**
     * Regenerate key for a topic.
     *
     * <p>Regenerate a shared access key for a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param regenerateKeyRequest Request body to regenerate key.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link SyncPoller} for polling of shared access keys of the Topic.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller<PollResult<TopicSharedAccessKeysInner>, TopicSharedAccessKeysInner> beginRegenerateKey(
        String resourceGroupName, String topicName, TopicRegenerateKeyRequest regenerateKeyRequest) {
        return this.beginRegenerateKeyAsync(resourceGroupName, topicName, regenerateKeyRequest).getSyncPoller();
    }

    /**
     * Regenerate key for a topic.
     *
     * <p>Regenerate a shared access key for a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param regenerateKeyRequest Request body to regenerate key.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return the {@link SyncPoller} for polling of shared access keys of the Topic.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller<PollResult<TopicSharedAccessKeysInner>, TopicSharedAccessKeysInner> beginRegenerateKey(
        String resourceGroupName, String topicName, TopicRegenerateKeyRequest regenerateKeyRequest, Context context) {
        return this
            .beginRegenerateKeyAsync(resourceGroupName, topicName, regenerateKeyRequest, context)
            .getSyncPoller();
    }

    /**
     * Regenerate key for a topic.
     *
     * <p>Regenerate a shared access key for a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param regenerateKeyRequest Request body to regenerate key.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return shared access keys of the Topic on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<TopicSharedAccessKeysInner> regenerateKeyAsync(
        String resourceGroupName, String topicName, TopicRegenerateKeyRequest regenerateKeyRequest) {
        return beginRegenerateKeyAsync(resourceGroupName, topicName, regenerateKeyRequest)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Regenerate key for a topic.
     *
     * <p>Regenerate a shared access key for a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param regenerateKeyRequest Request body to regenerate key.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return shared access keys of the Topic on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<TopicSharedAccessKeysInner> regenerateKeyAsync(
        String resourceGroupName, String topicName, TopicRegenerateKeyRequest regenerateKeyRequest, Context context) {
        return beginRegenerateKeyAsync(resourceGroupName, topicName, regenerateKeyRequest, context)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Regenerate key for a topic.
     *
     * <p>Regenerate a shared access key for a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param regenerateKeyRequest Request body to regenerate key.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return shared access keys of the Topic.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public TopicSharedAccessKeysInner regenerateKey(
        String resourceGroupName, String topicName, TopicRegenerateKeyRequest regenerateKeyRequest) {
        return regenerateKeyAsync(resourceGroupName, topicName, regenerateKeyRequest).block();
    }

    /**
     * Regenerate key for a topic.
     *
     * <p>Regenerate a shared access key for a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param topicName Name of the topic.
     * @param regenerateKeyRequest Request body to regenerate key.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return shared access keys of the Topic.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public TopicSharedAccessKeysInner regenerateKey(
        String resourceGroupName, String topicName, TopicRegenerateKeyRequest regenerateKeyRequest, Context context) {
        return regenerateKeyAsync(resourceGroupName, topicName, regenerateKeyRequest, context).block();
    }

    /**
     * List topic event types.
     *
     * <p>List event types for a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param providerNamespace Namespace of the provider of the topic.
     * @param resourceTypeName Name of the topic type.
     * @param resourceName Name of the topic.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Event Types operation along with {@link PagedResponse} on successful completion of
     *     {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<PagedResponse<EventTypeInner>> listEventTypesSinglePageAsync(
        String resourceGroupName, String providerNamespace, String resourceTypeName, String resourceName) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (providerNamespace == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter providerNamespace is required and cannot be null."));
        }
        if (resourceTypeName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceTypeName is required and cannot be null."));
        }
        if (resourceName == null) {
            return Mono.error(new IllegalArgumentException("Parameter resourceName is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .listEventTypes(
                            this.client.getEndpoint(),
                            this.client.getSubscriptionId(),
                            resourceGroupName,
                            providerNamespace,
                            resourceTypeName,
                            resourceName,
                            this.client.getApiVersion(),
                            accept,
                            context))
            .<PagedResponse<EventTypeInner>>map(
                res ->
                    new PagedResponseBase<>(
                        res.getRequest(), res.getStatusCode(), res.getHeaders(), res.getValue().value(), null, null))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * List topic event types.
     *
     * <p>List event types for a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param providerNamespace Namespace of the provider of the topic.
     * @param resourceTypeName Name of the topic type.
     * @param resourceName Name of the topic.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Event Types operation along with {@link PagedResponse} on successful completion of
     *     {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<PagedResponse<EventTypeInner>> listEventTypesSinglePageAsync(
        String resourceGroupName,
        String providerNamespace,
        String resourceTypeName,
        String resourceName,
        Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (this.client.getSubscriptionId() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getSubscriptionId() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (providerNamespace == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter providerNamespace is required and cannot be null."));
        }
        if (resourceTypeName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceTypeName is required and cannot be null."));
        }
        if (resourceName == null) {
            return Mono.error(new IllegalArgumentException("Parameter resourceName is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .listEventTypes(
                this.client.getEndpoint(),
                this.client.getSubscriptionId(),
                resourceGroupName,
                providerNamespace,
                resourceTypeName,
                resourceName,
                this.client.getApiVersion(),
                accept,
                context)
            .map(
                res ->
                    new PagedResponseBase<>(
                        res.getRequest(), res.getStatusCode(), res.getHeaders(), res.getValue().value(), null, null));
    }

    /**
     * List topic event types.
     *
     * <p>List event types for a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param providerNamespace Namespace of the provider of the topic.
     * @param resourceTypeName Name of the topic type.
     * @param resourceName Name of the topic.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Event Types operation as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux<EventTypeInner> listEventTypesAsync(
        String resourceGroupName, String providerNamespace, String resourceTypeName, String resourceName) {
        return new PagedFlux<>(
            () -> listEventTypesSinglePageAsync(resourceGroupName, providerNamespace, resourceTypeName, resourceName));
    }

    /**
     * List topic event types.
     *
     * <p>List event types for a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param providerNamespace Namespace of the provider of the topic.
     * @param resourceTypeName Name of the topic type.
     * @param resourceName Name of the topic.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Event Types operation as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux<EventTypeInner> listEventTypesAsync(
        String resourceGroupName,
        String providerNamespace,
        String resourceTypeName,
        String resourceName,
        Context context) {
        return new PagedFlux<>(
            () ->
                listEventTypesSinglePageAsync(
                    resourceGroupName, providerNamespace, resourceTypeName, resourceName, context));
    }

    /**
     * List topic event types.
     *
     * <p>List event types for a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param providerNamespace Namespace of the provider of the topic.
     * @param resourceTypeName Name of the topic type.
     * @param resourceName Name of the topic.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Event Types operation as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable<EventTypeInner> listEventTypes(
        String resourceGroupName, String providerNamespace, String resourceTypeName, String resourceName) {
        return new PagedIterable<>(
            listEventTypesAsync(resourceGroupName, providerNamespace, resourceTypeName, resourceName));
    }

    /**
     * List topic event types.
     *
     * <p>List event types for a topic.
     *
     * @param resourceGroupName The name of the resource group within the user's subscription.
     * @param providerNamespace Namespace of the provider of the topic.
     * @param resourceTypeName Name of the topic type.
     * @param resourceName Name of the topic.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Event Types operation as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable<EventTypeInner> listEventTypes(
        String resourceGroupName,
        String providerNamespace,
        String resourceTypeName,
        String resourceName,
        Context context) {
        return new PagedIterable<>(
            listEventTypesAsync(resourceGroupName, providerNamespace, resourceTypeName, resourceName, context));
    }

    /**
     * Get the next page of items.
     *
     * @param nextLink The URL to get the next list of items
     *     <p>The nextLink parameter.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation along with {@link PagedResponse} on successful completion of {@link
     *     Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<PagedResponse<TopicInner>> listBySubscriptionNextSinglePageAsync(String nextLink) {
        if (nextLink == null) {
            return Mono.error(new IllegalArgumentException("Parameter nextLink is required and cannot be null."));
        }
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context -> service.listBySubscriptionNext(nextLink, this.client.getEndpoint(), accept, context))
            .<PagedResponse<TopicInner>>map(
                res ->
                    new PagedResponseBase<>(
                        res.getRequest(),
                        res.getStatusCode(),
                        res.getHeaders(),
                        res.getValue().value(),
                        res.getValue().nextLink(),
                        null))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Get the next page of items.
     *
     * @param nextLink The URL to get the next list of items
     *     <p>The nextLink parameter.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation along with {@link PagedResponse} on successful completion of {@link
     *     Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<PagedResponse<TopicInner>> listBySubscriptionNextSinglePageAsync(String nextLink, Context context) {
        if (nextLink == null) {
            return Mono.error(new IllegalArgumentException("Parameter nextLink is required and cannot be null."));
        }
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .listBySubscriptionNext(nextLink, this.client.getEndpoint(), accept, context)
            .map(
                res ->
                    new PagedResponseBase<>(
                        res.getRequest(),
                        res.getStatusCode(),
                        res.getHeaders(),
                        res.getValue().value(),
                        res.getValue().nextLink(),
                        null));
    }

    /**
     * Get the next page of items.
     *
     * @param nextLink The URL to get the next list of items
     *     <p>The nextLink parameter.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation along with {@link PagedResponse} on successful completion of {@link
     *     Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<PagedResponse<TopicInner>> listByResourceGroupNextSinglePageAsync(String nextLink) {
        if (nextLink == null) {
            return Mono.error(new IllegalArgumentException("Parameter nextLink is required and cannot be null."));
        }
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context -> service.listByResourceGroupNext(nextLink, this.client.getEndpoint(), accept, context))
            .<PagedResponse<TopicInner>>map(
                res ->
                    new PagedResponseBase<>(
                        res.getRequest(),
                        res.getStatusCode(),
                        res.getHeaders(),
                        res.getValue().value(),
                        res.getValue().nextLink(),
                        null))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Get the next page of items.
     *
     * @param nextLink The URL to get the next list of items
     *     <p>The nextLink parameter.
     * @param context The context to associate with this operation.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return result of the List Topics operation along with {@link PagedResponse} on successful completion of {@link
     *     Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<PagedResponse<TopicInner>> listByResourceGroupNextSinglePageAsync(String nextLink, Context context) {
        if (nextLink == null) {
            return Mono.error(new IllegalArgumentException("Parameter nextLink is required and cannot be null."));
        }
        if (this.client.getEndpoint() == null) {
            return Mono
                .error(
                    new IllegalArgumentException(
                        "Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .listByResourceGroupNext(nextLink, this.client.getEndpoint(), accept, context)
            .map(
                res ->
                    new PagedResponseBase<>(
                        res.getRequest(),
                        res.getStatusCode(),
                        res.getHeaders(),
                        res.getValue().value(),
                        res.getValue().nextLink(),
                        null));
    }
}
