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This package contains Microsoft Azure Sql Management SDK. For documentation on how to use this package, please see https://aka.ms/azsdk/java/mgmt
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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.sql.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.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.resources.fluentcore.collection.InnerSupportsDelete;
import com.azure.resourcemanager.resources.fluentcore.collection.InnerSupportsGet;
import com.azure.resourcemanager.resources.fluentcore.collection.InnerSupportsListing;
import com.azure.resourcemanager.sql.fluent.VirtualClustersClient;
import com.azure.resourcemanager.sql.fluent.models.UpdateManagedInstanceDnsServersOperationInner;
import com.azure.resourcemanager.sql.fluent.models.VirtualClusterInner;
import com.azure.resourcemanager.sql.models.VirtualClusterListResult;
import com.azure.resourcemanager.sql.models.VirtualClusterUpdate;
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 VirtualClustersClient.
 */
public final class VirtualClustersClientImpl implements InnerSupportsGet,
    InnerSupportsListing, InnerSupportsDelete, VirtualClustersClient {
    /**
     * The proxy service used to perform REST calls.
     */
    private final VirtualClustersService service;

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

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

    /**
     * The interface defining all the services for SqlManagementClientVirtualClusters to be used by the proxy service to
     * perform REST calls.
     */
    @Host("{$host}")
    @ServiceInterface(name = "SqlManagementClientV")
    public interface VirtualClustersService {
        @Headers({ "Content-Type: application/json" })
        @Get("/subscriptions/{subscriptionId}/providers/Microsoft.Sql/virtualClusters")
        @ExpectedResponses({ 200 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> list(@HostParam("$host") String endpoint,
            @PathParam("subscriptionId") String subscriptionId, @QueryParam("api-version") String apiVersion,
            @HeaderParam("Accept") String accept, Context context);

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

        @Headers({ "Content-Type: application/json" })
        @Get("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Sql/virtualClusters/{virtualClusterName}")
        @ExpectedResponses({ 200 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> getByResourceGroup(@HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("virtualClusterName") String virtualClusterName,
            @PathParam("subscriptionId") String subscriptionId, @QueryParam("api-version") String apiVersion,
            @HeaderParam("Accept") String accept, Context context);

        @Headers({ "Accept: application/json;q=0.9", "Content-Type: application/json" })
        @Delete("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Sql/virtualClusters/{virtualClusterName}")
        @ExpectedResponses({ 200, 202, 204 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono>> delete(@HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("virtualClusterName") String virtualClusterName,
            @PathParam("subscriptionId") String subscriptionId, @QueryParam("api-version") String apiVersion,
            Context context);

        @Headers({ "Content-Type: application/json" })
        @Patch("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Sql/virtualClusters/{virtualClusterName}")
        @ExpectedResponses({ 200, 202 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono>> update(@HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("virtualClusterName") String virtualClusterName,
            @PathParam("subscriptionId") String subscriptionId, @QueryParam("api-version") String apiVersion,
            @BodyParam("application/json") VirtualClusterUpdate parameters, @HeaderParam("Accept") String accept,
            Context context);

        @Headers({ "Content-Type: application/json" })
        @Post("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Sql/virtualClusters/{virtualClusterName}/updateManagedInstanceDnsServers")
        @ExpectedResponses({ 200 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> updateDnsServers(
            @HostParam("$host") String endpoint, @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("virtualClusterName") String virtualClusterName,
            @PathParam("subscriptionId") String subscriptionId, @QueryParam("api-version") String apiVersion,
            @HeaderParam("Accept") String accept, Context context);

        @Headers({ "Content-Type: application/json" })
        @Get("{nextLink}")
        @ExpectedResponses({ 200 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> listNext(
            @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);
    }

    /**
     * Gets a list of all virtualClusters in the 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 a list of all virtualClusters in the subscription along with {@link PagedResponse} on successful
     * completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listSinglePageAsync() {
        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(), 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()));
    }

    /**
     * Gets a list of all virtualClusters in the subscription.
     * 
     * @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 list of all virtualClusters in the subscription along with {@link PagedResponse} on successful
     * completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listSinglePageAsync(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(), accept,
                context)
            .map(res -> new PagedResponseBase<>(res.getRequest(), res.getStatusCode(), res.getHeaders(),
                res.getValue().value(), res.getValue().nextLink(), null));
    }

    /**
     * Gets a list of all virtualClusters in the 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 a list of all virtualClusters in the subscription as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedFlux listAsync() {
        return new PagedFlux<>(() -> listSinglePageAsync(), nextLink -> listNextSinglePageAsync(nextLink));
    }

    /**
     * Gets a list of all virtualClusters in the subscription.
     * 
     * @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 list of all virtualClusters in the subscription as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux listAsync(Context context) {
        return new PagedFlux<>(() -> listSinglePageAsync(context),
            nextLink -> listNextSinglePageAsync(nextLink, context));
    }

    /**
     * Gets a list of all virtualClusters in the 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 a list of all virtualClusters in the subscription as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable list() {
        return new PagedIterable<>(listAsync());
    }

    /**
     * Gets a list of all virtualClusters in the subscription.
     * 
     * @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 list of all virtualClusters in the subscription as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable list(Context context) {
        return new PagedIterable<>(listAsync(context));
    }

    /**
     * Gets a list of virtual clusters in a resource group.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @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 list of virtual clusters in a resource group along with {@link PagedResponse} on successful completion
     * of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listByResourceGroupSinglePageAsync(String resourceGroupName) {
        if (this.client.getEndpoint() == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName 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.listByResourceGroup(this.client.getEndpoint(), resourceGroupName,
                this.client.getSubscriptionId(), this.client.getApiVersion(), 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()));
    }

    /**
     * Gets a list of virtual clusters in a resource group.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @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 list of virtual clusters in a resource group along with {@link PagedResponse} on successful completion
     * of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listByResourceGroupSinglePageAsync(String resourceGroupName,
        Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName 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
            .listByResourceGroup(this.client.getEndpoint(), resourceGroupName, this.client.getSubscriptionId(),
                this.client.getApiVersion(), accept, context)
            .map(res -> new PagedResponseBase<>(res.getRequest(), res.getStatusCode(), res.getHeaders(),
                res.getValue().value(), res.getValue().nextLink(), null));
    }

    /**
     * Gets a list of virtual clusters in a resource group.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @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 list of virtual clusters in a resource group as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedFlux listByResourceGroupAsync(String resourceGroupName) {
        return new PagedFlux<>(() -> listByResourceGroupSinglePageAsync(resourceGroupName),
            nextLink -> listByResourceGroupNextSinglePageAsync(nextLink));
    }

    /**
     * Gets a list of virtual clusters in a resource group.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @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 list of virtual clusters in a resource group as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux listByResourceGroupAsync(String resourceGroupName, Context context) {
        return new PagedFlux<>(() -> listByResourceGroupSinglePageAsync(resourceGroupName, context),
            nextLink -> listByResourceGroupNextSinglePageAsync(nextLink, context));
    }

    /**
     * Gets a list of virtual clusters in a resource group.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @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 list of virtual clusters in a resource group as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable listByResourceGroup(String resourceGroupName) {
        return new PagedIterable<>(listByResourceGroupAsync(resourceGroupName));
    }

    /**
     * Gets a list of virtual clusters in a resource group.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @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 list of virtual clusters in a resource group as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable listByResourceGroup(String resourceGroupName, Context context) {
        return new PagedIterable<>(listByResourceGroupAsync(resourceGroupName, context));
    }

    /**
     * Gets a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 virtual cluster along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono> getByResourceGroupWithResponseAsync(String resourceGroupName,
        String virtualClusterName) {
        if (this.client.getEndpoint() == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (virtualClusterName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter virtualClusterName 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.getByResourceGroup(this.client.getEndpoint(), resourceGroupName,
                virtualClusterName, this.client.getSubscriptionId(), this.client.getApiVersion(), accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Gets a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 virtual cluster along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> getByResourceGroupWithResponseAsync(String resourceGroupName,
        String virtualClusterName, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (virtualClusterName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter virtualClusterName 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.getByResourceGroup(this.client.getEndpoint(), resourceGroupName, virtualClusterName,
            this.client.getSubscriptionId(), this.client.getApiVersion(), accept, context);
    }

    /**
     * Gets a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 virtual cluster on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono getByResourceGroupAsync(String resourceGroupName, String virtualClusterName) {
        return getByResourceGroupWithResponseAsync(resourceGroupName, virtualClusterName)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Gets a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 virtual cluster along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response getByResourceGroupWithResponse(String resourceGroupName,
        String virtualClusterName, Context context) {
        return getByResourceGroupWithResponseAsync(resourceGroupName, virtualClusterName, context).block();
    }

    /**
     * Gets a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 virtual cluster.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public VirtualClusterInner getByResourceGroup(String resourceGroupName, String virtualClusterName) {
        return getByResourceGroupWithResponse(resourceGroupName, virtualClusterName, Context.NONE).getValue();
    }

    /**
     * Deletes a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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)
    public Mono>> deleteWithResponseAsync(String resourceGroupName,
        String virtualClusterName) {
        if (this.client.getEndpoint() == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (virtualClusterName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter virtualClusterName 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."));
        }
        return FluxUtil
            .withContext(context -> service.delete(this.client.getEndpoint(), resourceGroupName, virtualClusterName,
                this.client.getSubscriptionId(), this.client.getApiVersion(), context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Deletes a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 virtualClusterName, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (virtualClusterName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter virtualClusterName 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."));
        }
        context = this.client.mergeContext(context);
        return service.delete(this.client.getEndpoint(), resourceGroupName, virtualClusterName,
            this.client.getSubscriptionId(), this.client.getApiVersion(), context);
    }

    /**
     * Deletes a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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)
    public PollerFlux, Void> beginDeleteAsync(String resourceGroupName, String virtualClusterName) {
        Mono>> mono = deleteWithResponseAsync(resourceGroupName, virtualClusterName);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class,
            this.client.getContext());
    }

    /**
     * Deletes a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 virtualClusterName,
        Context context) {
        context = this.client.mergeContext(context);
        Mono>> mono = deleteWithResponseAsync(resourceGroupName, virtualClusterName, context);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class,
            context);
    }

    /**
     * Deletes a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 virtualClusterName) {
        return this.beginDeleteAsync(resourceGroupName, virtualClusterName).getSyncPoller();
    }

    /**
     * Deletes a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 virtualClusterName,
        Context context) {
        return this.beginDeleteAsync(resourceGroupName, virtualClusterName, context).getSyncPoller();
    }

    /**
     * Deletes a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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)
    public Mono deleteAsync(String resourceGroupName, String virtualClusterName) {
        return beginDeleteAsync(resourceGroupName, virtualClusterName).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Deletes a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 virtualClusterName, Context context) {
        return beginDeleteAsync(resourceGroupName, virtualClusterName, context).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Deletes a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 virtualClusterName) {
        deleteAsync(resourceGroupName, virtualClusterName).block();
    }

    /**
     * Deletes a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 virtualClusterName, Context context) {
        deleteAsync(resourceGroupName, virtualClusterName, context).block();
    }

    /**
     * Updates a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @param parameters The requested virtual cluster resource state.
     * @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 an Azure SQL virtual cluster along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono>> updateWithResponseAsync(String resourceGroupName, String virtualClusterName,
        VirtualClusterUpdate parameters) {
        if (this.client.getEndpoint() == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (virtualClusterName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter virtualClusterName 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 (parameters == null) {
            return Mono.error(new IllegalArgumentException("Parameter parameters is required and cannot be null."));
        } else {
            parameters.validate();
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.update(this.client.getEndpoint(), resourceGroupName, virtualClusterName,
                this.client.getSubscriptionId(), this.client.getApiVersion(), parameters, accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Updates a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @param parameters The requested virtual cluster resource state.
     * @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 an Azure SQL virtual cluster along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono>> updateWithResponseAsync(String resourceGroupName,
        String virtualClusterName, VirtualClusterUpdate parameters, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (virtualClusterName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter virtualClusterName 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 (parameters == null) {
            return Mono.error(new IllegalArgumentException("Parameter parameters is required and cannot be null."));
        } else {
            parameters.validate();
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.update(this.client.getEndpoint(), resourceGroupName, virtualClusterName,
            this.client.getSubscriptionId(), this.client.getApiVersion(), parameters, accept, context);
    }

    /**
     * Updates a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @param parameters The requested virtual cluster resource state.
     * @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 an Azure SQL virtual cluster.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public PollerFlux, VirtualClusterInner> beginUpdateAsync(String resourceGroupName,
        String virtualClusterName, VirtualClusterUpdate parameters) {
        Mono>> mono
            = updateWithResponseAsync(resourceGroupName, virtualClusterName, parameters);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(),
            VirtualClusterInner.class, VirtualClusterInner.class, this.client.getContext());
    }

    /**
     * Updates a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @param parameters The requested virtual cluster resource state.
     * @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 an Azure SQL virtual cluster.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    private PollerFlux, VirtualClusterInner> beginUpdateAsync(String resourceGroupName,
        String virtualClusterName, VirtualClusterUpdate parameters, Context context) {
        context = this.client.mergeContext(context);
        Mono>> mono
            = updateWithResponseAsync(resourceGroupName, virtualClusterName, parameters, context);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(),
            VirtualClusterInner.class, VirtualClusterInner.class, context);
    }

    /**
     * Updates a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @param parameters The requested virtual cluster resource state.
     * @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 an Azure SQL virtual cluster.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller, VirtualClusterInner> beginUpdate(String resourceGroupName,
        String virtualClusterName, VirtualClusterUpdate parameters) {
        return this.beginUpdateAsync(resourceGroupName, virtualClusterName, parameters).getSyncPoller();
    }

    /**
     * Updates a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @param parameters The requested virtual cluster resource state.
     * @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 an Azure SQL virtual cluster.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller, VirtualClusterInner> beginUpdate(String resourceGroupName,
        String virtualClusterName, VirtualClusterUpdate parameters, Context context) {
        return this.beginUpdateAsync(resourceGroupName, virtualClusterName, parameters, context).getSyncPoller();
    }

    /**
     * Updates a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @param parameters The requested virtual cluster resource state.
     * @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 an Azure SQL virtual cluster on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono updateAsync(String resourceGroupName, String virtualClusterName,
        VirtualClusterUpdate parameters) {
        return beginUpdateAsync(resourceGroupName, virtualClusterName, parameters).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Updates a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @param parameters The requested virtual cluster resource state.
     * @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 an Azure SQL virtual cluster on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono updateAsync(String resourceGroupName, String virtualClusterName,
        VirtualClusterUpdate parameters, Context context) {
        return beginUpdateAsync(resourceGroupName, virtualClusterName, parameters, context).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Updates a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @param parameters The requested virtual cluster resource state.
     * @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 an Azure SQL virtual cluster.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public VirtualClusterInner update(String resourceGroupName, String virtualClusterName,
        VirtualClusterUpdate parameters) {
        return updateAsync(resourceGroupName, virtualClusterName, parameters).block();
    }

    /**
     * Updates a virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @param parameters The requested virtual cluster resource state.
     * @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 an Azure SQL virtual cluster.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public VirtualClusterInner update(String resourceGroupName, String virtualClusterName,
        VirtualClusterUpdate parameters, Context context) {
        return updateAsync(resourceGroupName, virtualClusterName, parameters, context).block();
    }

    /**
     * Synchronizes the DNS server settings used by the managed instances inside the given virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 recoverable managed database resource along with {@link Response} on successful completion of
     * {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono>
        updateDnsServersWithResponseAsync(String resourceGroupName, String virtualClusterName) {
        if (this.client.getEndpoint() == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (virtualClusterName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter virtualClusterName 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.updateDnsServers(this.client.getEndpoint(), resourceGroupName,
                virtualClusterName, this.client.getSubscriptionId(), this.client.getApiVersion(), accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Synchronizes the DNS server settings used by the managed instances inside the given virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 recoverable managed database resource along with {@link Response} on successful completion of
     * {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono>
        updateDnsServersWithResponseAsync(String resourceGroupName, String virtualClusterName, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (resourceGroupName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null."));
        }
        if (virtualClusterName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter virtualClusterName 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.updateDnsServers(this.client.getEndpoint(), resourceGroupName, virtualClusterName,
            this.client.getSubscriptionId(), this.client.getApiVersion(), accept, context);
    }

    /**
     * Synchronizes the DNS server settings used by the managed instances inside the given virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 recoverable managed database resource on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono updateDnsServersAsync(String resourceGroupName,
        String virtualClusterName) {
        return updateDnsServersWithResponseAsync(resourceGroupName, virtualClusterName)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Synchronizes the DNS server settings used by the managed instances inside the given virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 recoverable managed database resource along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response
        updateDnsServersWithResponse(String resourceGroupName, String virtualClusterName, Context context) {
        return updateDnsServersWithResponseAsync(resourceGroupName, virtualClusterName, context).block();
    }

    /**
     * Synchronizes the DNS server settings used by the managed instances inside the given virtual cluster.
     * 
     * @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value
     * from the Azure Resource Manager API or the portal.
     * @param virtualClusterName The name of the virtual cluster.
     * @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 recoverable managed database resource.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public UpdateManagedInstanceDnsServersOperationInner updateDnsServers(String resourceGroupName,
        String virtualClusterName) {
        return updateDnsServersWithResponse(resourceGroupName, virtualClusterName, Context.NONE).getValue();
    }

    /**
     * Get the next page of items.
     * 
     * @param nextLink The URL to get the next list of items.
     * @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 list of virtual clusters along with {@link PagedResponse} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listNextSinglePageAsync(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.listNext(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.
     * @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 list of virtual clusters along with {@link PagedResponse} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listNextSinglePageAsync(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.listNext(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.
     * @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 list of virtual clusters 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.
     * @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 list of virtual clusters 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));
    }
}