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This package contains Microsoft Azure SDK for EventGrid Management SDK. For documentation on how to use this package, please see https://aka.ms/azsdk/java/mgmt. Azure EventGrid Management Client. Package tag package-2021-10-preview.

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// 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.TopicsListResult;
import com.azure.resourcemanager.eventgrid.models.TopicUpdateParameters;
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("{$host}")
    @ServiceInterface(name = "EventGridManagementC")
    public interface TopicsService {
        @Headers({ "Content-Type: application/json" })
        @Get("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventGrid/topics/{topicName}")
        @ExpectedResponses({ 200 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> getByResourceGroup(@HostParam("$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>> 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>> 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>> 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> 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> 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> 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>> 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> 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> 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> listByResourceGroupNext(
            @PathParam(value = "nextLink", encoded = true) String nextLink, @HostParam("$host") String endpoint,
            @HeaderParam("Accept") String accept, Context context);
    }

    /**
     * Get a topic.
     * 
     * 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> 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.
     * 
     * 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> 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.
     * 
     * 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 getByResourceGroupAsync(String resourceGroupName, String topicName) {
        return getByResourceGroupWithResponseAsync(resourceGroupName, topicName)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Get a topic.
     * 
     * 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 getByResourceGroupWithResponse(String resourceGroupName, String topicName,
        Context context) {
        return getByResourceGroupWithResponseAsync(resourceGroupName, topicName, context).block();
    }

    /**
     * Get a topic.
     * 
     * 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.
     * 
     * 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>> 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.
     * 
     * 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>> 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.
     * 
     * 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, TopicInner> beginCreateOrUpdateAsync(String resourceGroupName,
        String topicName, TopicInner topicInfo) {
        Mono>> mono
            = createOrUpdateWithResponseAsync(resourceGroupName, topicName, topicInfo);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), TopicInner.class,
            TopicInner.class, this.client.getContext());
    }

    /**
     * Create a topic.
     * 
     * 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, TopicInner> beginCreateOrUpdateAsync(String resourceGroupName,
        String topicName, TopicInner topicInfo, Context context) {
        context = this.client.mergeContext(context);
        Mono>> mono
            = createOrUpdateWithResponseAsync(resourceGroupName, topicName, topicInfo, context);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), TopicInner.class,
            TopicInner.class, context);
    }

    /**
     * Create a topic.
     * 
     * 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, TopicInner> beginCreateOrUpdate(String resourceGroupName,
        String topicName, TopicInner topicInfo) {
        return this.beginCreateOrUpdateAsync(resourceGroupName, topicName, topicInfo).getSyncPoller();
    }

    /**
     * Create a topic.
     * 
     * 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, TopicInner> beginCreateOrUpdate(String resourceGroupName,
        String topicName, TopicInner topicInfo, Context context) {
        return this.beginCreateOrUpdateAsync(resourceGroupName, topicName, topicInfo, context).getSyncPoller();
    }

    /**
     * Create a topic.
     * 
     * 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 createOrUpdateAsync(String resourceGroupName, String topicName, TopicInner topicInfo) {
        return beginCreateOrUpdateAsync(resourceGroupName, topicName, topicInfo).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Create a topic.
     * 
     * 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 createOrUpdateAsync(String resourceGroupName, String topicName, TopicInner topicInfo,
        Context context) {
        return beginCreateOrUpdateAsync(resourceGroupName, topicName, topicInfo, context).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Create a topic.
     * 
     * 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.
     * 
     * 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.
     * 
     * 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>> 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.
     * 
     * 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>> 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.
     * 
     * 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, Void> beginDeleteAsync(String resourceGroupName, String topicName) {
        Mono>> mono = deleteWithResponseAsync(resourceGroupName, topicName);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class,
            this.client.getContext());
    }

    /**
     * Delete a topic.
     * 
     * 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, Void> beginDeleteAsync(String resourceGroupName, String topicName,
        Context context) {
        context = this.client.mergeContext(context);
        Mono>> mono = deleteWithResponseAsync(resourceGroupName, topicName, context);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class,
            context);
    }

    /**
     * Delete a topic.
     * 
     * 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, Void> beginDelete(String resourceGroupName, String topicName) {
        return this.beginDeleteAsync(resourceGroupName, topicName).getSyncPoller();
    }

    /**
     * Delete a topic.
     * 
     * 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, Void> beginDelete(String resourceGroupName, String topicName, Context context) {
        return this.beginDeleteAsync(resourceGroupName, topicName, context).getSyncPoller();
    }

    /**
     * Delete a topic.
     * 
     * 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 deleteAsync(String resourceGroupName, String topicName) {
        return beginDeleteAsync(resourceGroupName, topicName).last().flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Delete a topic.
     * 
     * 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 deleteAsync(String resourceGroupName, String topicName, Context context) {
        return beginDeleteAsync(resourceGroupName, topicName, context).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Delete a topic.
     * 
     * 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.
     * 
     * 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.
     * 
     * 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>> 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.
     * 
     * 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>> 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.
     * 
     * 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, TopicInner> beginUpdateAsync(String resourceGroupName, String topicName,
        TopicUpdateParameters topicUpdateParameters) {
        Mono>> mono
            = updateWithResponseAsync(resourceGroupName, topicName, topicUpdateParameters);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), TopicInner.class,
            TopicInner.class, this.client.getContext());
    }

    /**
     * Update a topic.
     * 
     * 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, TopicInner> beginUpdateAsync(String resourceGroupName, String topicName,
        TopicUpdateParameters topicUpdateParameters, Context context) {
        context = this.client.mergeContext(context);
        Mono>> mono
            = updateWithResponseAsync(resourceGroupName, topicName, topicUpdateParameters, context);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), TopicInner.class,
            TopicInner.class, context);
    }

    /**
     * Update a topic.
     * 
     * 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, TopicInner> beginUpdate(String resourceGroupName, String topicName,
        TopicUpdateParameters topicUpdateParameters) {
        return this.beginUpdateAsync(resourceGroupName, topicName, topicUpdateParameters).getSyncPoller();
    }

    /**
     * Update a topic.
     * 
     * 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, TopicInner> beginUpdate(String resourceGroupName, String topicName,
        TopicUpdateParameters topicUpdateParameters, Context context) {
        return this.beginUpdateAsync(resourceGroupName, topicName, topicUpdateParameters, context).getSyncPoller();
    }

    /**
     * Update a topic.
     * 
     * 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 updateAsync(String resourceGroupName, String topicName,
        TopicUpdateParameters topicUpdateParameters) {
        return beginUpdateAsync(resourceGroupName, topicName, topicUpdateParameters).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Update a topic.
     * 
     * 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 updateAsync(String resourceGroupName, String topicName,
        TopicUpdateParameters topicUpdateParameters, Context context) {
        return beginUpdateAsync(resourceGroupName, topicName, topicUpdateParameters, context).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Update a topic.
     * 
     * 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.
     * 
     * 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.
     * 
     * 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> 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))
            .>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.
     * 
     * 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> 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.
     * 
     * 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 listAsync(String filter, Integer top) {
        return new PagedFlux<>(() -> listSinglePageAsync(filter, top),
            nextLink -> listBySubscriptionNextSinglePageAsync(nextLink));
    }

    /**
     * List topics under an Azure subscription.
     * 
     * 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 listAsync() {
        final String filter = null;
        final Integer top = null;
        return new PagedFlux<>(() -> listSinglePageAsync(filter, top),
            nextLink -> listBySubscriptionNextSinglePageAsync(nextLink));
    }

    /**
     * List topics under an Azure subscription.
     * 
     * 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 listAsync(String filter, Integer top, Context context) {
        return new PagedFlux<>(() -> listSinglePageAsync(filter, top, context),
            nextLink -> listBySubscriptionNextSinglePageAsync(nextLink, context));
    }

    /**
     * List topics under an Azure subscription.
     * 
     * 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 list() {
        final String filter = null;
        final Integer top = null;
        return new PagedIterable<>(listAsync(filter, top));
    }

    /**
     * List topics under an Azure subscription.
     * 
     * 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 list(String filter, Integer top, Context context) {
        return new PagedIterable<>(listAsync(filter, top, context));
    }

    /**
     * List topics under a resource group.
     * 
     * 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> 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))
            .>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.
     * 
     * 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> 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.
     * 
     * 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 listByResourceGroupAsync(String resourceGroupName, String filter, Integer top) {
        return new PagedFlux<>(() -> listByResourceGroupSinglePageAsync(resourceGroupName, filter, top),
            nextLink -> listByResourceGroupNextSinglePageAsync(nextLink));
    }

    /**
     * List topics under a resource group.
     * 
     * 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 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.
     * 
     * 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 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.
     * 
     * 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 listByResourceGroup(String resourceGroupName) {
        final String filter = null;
        final Integer top = null;
        return new PagedIterable<>(listByResourceGroupAsync(resourceGroupName, filter, top));
    }

    /**
     * List topics under a resource group.
     * 
     * 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 listByResourceGroup(String resourceGroupName, String filter, Integer top,
        Context context) {
        return new PagedIterable<>(listByResourceGroupAsync(resourceGroupName, filter, top, context));
    }

    /**
     * List keys for a topic.
     * 
     * 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> 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.
     * 
     * 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> 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.
     * 
     * 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 listSharedAccessKeysAsync(String resourceGroupName, String topicName) {
        return listSharedAccessKeysWithResponseAsync(resourceGroupName, topicName)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * List keys for a topic.
     * 
     * 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 listSharedAccessKeysWithResponse(String resourceGroupName,
        String topicName, Context context) {
        return listSharedAccessKeysWithResponseAsync(resourceGroupName, topicName, context).block();
    }

    /**
     * List keys for a topic.
     * 
     * 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.
     * 
     * 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>> 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.
     * 
     * 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>> 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.
     * 
     * 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, TopicSharedAccessKeysInner> beginRegenerateKeyAsync(
        String resourceGroupName, String topicName, TopicRegenerateKeyRequest regenerateKeyRequest) {
        Mono>> mono
            = regenerateKeyWithResponseAsync(resourceGroupName, topicName, regenerateKeyRequest);
        return this.client.getLroResult(mono,
            this.client.getHttpPipeline(), TopicSharedAccessKeysInner.class, TopicSharedAccessKeysInner.class,
            this.client.getContext());
    }

    /**
     * Regenerate key for a topic.
     * 
     * 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, TopicSharedAccessKeysInner> beginRegenerateKeyAsync(
        String resourceGroupName, String topicName, TopicRegenerateKeyRequest regenerateKeyRequest, Context context) {
        context = this.client.mergeContext(context);
        Mono>> mono
            = regenerateKeyWithResponseAsync(resourceGroupName, topicName, regenerateKeyRequest, context);
        return this.client.getLroResult(mono,
            this.client.getHttpPipeline(), TopicSharedAccessKeysInner.class, TopicSharedAccessKeysInner.class, context);
    }

    /**
     * Regenerate key for a topic.
     * 
     * 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, TopicSharedAccessKeysInner>
        beginRegenerateKey(String resourceGroupName, String topicName, TopicRegenerateKeyRequest regenerateKeyRequest) {
        return this.beginRegenerateKeyAsync(resourceGroupName, topicName, regenerateKeyRequest).getSyncPoller();
    }

    /**
     * Regenerate key for a topic.
     * 
     * 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, TopicSharedAccessKeysInner> beginRegenerateKey(
        String resourceGroupName, String topicName, TopicRegenerateKeyRequest regenerateKeyRequest, Context context) {
        return this.beginRegenerateKeyAsync(resourceGroupName, topicName, regenerateKeyRequest, context)
            .getSyncPoller();
    }

    /**
     * Regenerate key for a topic.
     * 
     * 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 regenerateKeyAsync(String resourceGroupName, String topicName,
        TopicRegenerateKeyRequest regenerateKeyRequest) {
        return beginRegenerateKeyAsync(resourceGroupName, topicName, regenerateKeyRequest).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Regenerate key for a topic.
     * 
     * 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 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.
     * 
     * 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.
     * 
     * 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.
     * 
     * 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> 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))
            .>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.
     * 
     * 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> 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.
     * 
     * 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 listEventTypesAsync(String resourceGroupName, String providerNamespace,
        String resourceTypeName, String resourceName) {
        return new PagedFlux<>(
            () -> listEventTypesSinglePageAsync(resourceGroupName, providerNamespace, resourceTypeName, resourceName));
    }

    /**
     * List topic event types.
     * 
     * 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 listEventTypesAsync(String resourceGroupName, String providerNamespace,
        String resourceTypeName, String resourceName, Context context) {
        return new PagedFlux<>(() -> listEventTypesSinglePageAsync(resourceGroupName, providerNamespace,
            resourceTypeName, resourceName, context));
    }

    /**
     * List topic event types.
     * 
     * 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 listEventTypes(String resourceGroupName, String providerNamespace,
        String resourceTypeName, String resourceName) {
        return new PagedIterable<>(
            listEventTypesAsync(resourceGroupName, providerNamespace, resourceTypeName, resourceName));
    }

    /**
     * List topic event types.
     * 
     * 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 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
     * 
     * 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> 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))
            .>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
     * 
     * 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> 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
     * 
     * 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> 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))
            .>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
     * 
     * 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> 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));
    }
}




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