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This package contains Microsoft Azure CosmosDB 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.cosmos.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.Head;
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.cosmos.fluent.DatabaseAccountsClient;
import com.azure.resourcemanager.cosmos.fluent.models.DatabaseAccountGetResultsInner;
import com.azure.resourcemanager.cosmos.fluent.models.DatabaseAccountListConnectionStringsResultInner;
import com.azure.resourcemanager.cosmos.fluent.models.DatabaseAccountListKeysResultInner;
import com.azure.resourcemanager.cosmos.fluent.models.DatabaseAccountListReadOnlyKeysResultInner;
import com.azure.resourcemanager.cosmos.fluent.models.MetricDefinitionInner;
import com.azure.resourcemanager.cosmos.fluent.models.MetricInner;
import com.azure.resourcemanager.cosmos.fluent.models.UsageInner;
import com.azure.resourcemanager.cosmos.models.DatabaseAccountCreateUpdateParameters;
import com.azure.resourcemanager.cosmos.models.DatabaseAccountRegenerateKeyParameters;
import com.azure.resourcemanager.cosmos.models.DatabaseAccountUpdateParameters;
import com.azure.resourcemanager.cosmos.models.DatabaseAccountsListResult;
import com.azure.resourcemanager.cosmos.models.FailoverPolicies;
import com.azure.resourcemanager.cosmos.models.MetricDefinitionsListResult;
import com.azure.resourcemanager.cosmos.models.MetricListResult;
import com.azure.resourcemanager.cosmos.models.RegionForOnlineOffline;
import com.azure.resourcemanager.cosmos.models.UsagesResult;
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 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 DatabaseAccountsClient.
 */
public final class DatabaseAccountsClientImpl implements InnerSupportsGet,
    InnerSupportsListing, InnerSupportsDelete, DatabaseAccountsClient {
    /**
     * The proxy service used to perform REST calls.
     */
    private final DatabaseAccountsService service;

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

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

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

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

        @Headers({ "Content-Type: application/json" })
        @Put("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}")
        @ExpectedResponses({ 200 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono>> createOrUpdate(@HostParam("$host") String endpoint,
            @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName, @PathParam("accountName") String accountName,
            @QueryParam("api-version") String apiVersion,
            @BodyParam("application/json") DatabaseAccountCreateUpdateParameters createUpdateParameters,
            @HeaderParam("Accept") String accept, Context context);

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

        @Headers({ "Accept: application/json;q=0.9", "Content-Type: application/json" })
        @Post("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/failoverPriorityChange")
        @ExpectedResponses({ 202, 204 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono>> failoverPriorityChange(@HostParam("$host") String endpoint,
            @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName, @PathParam("accountName") String accountName,
            @QueryParam("api-version") String apiVersion,
            @BodyParam("application/json") FailoverPolicies failoverParameters, Context context);

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

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

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

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

        @Headers({ "Content-Type: application/json" })
        @Post("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/offlineRegion")
        @ExpectedResponses({ 200, 202 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono>> offlineRegion(@HostParam("$host") String endpoint,
            @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName, @PathParam("accountName") String accountName,
            @QueryParam("api-version") String apiVersion,
            @BodyParam("application/json") RegionForOnlineOffline regionParameterForOffline,
            @HeaderParam("Accept") String accept, Context context);

        @Headers({ "Content-Type: application/json" })
        @Post("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/onlineRegion")
        @ExpectedResponses({ 200, 202 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono>> onlineRegion(@HostParam("$host") String endpoint,
            @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName, @PathParam("accountName") String accountName,
            @QueryParam("api-version") String apiVersion,
            @BodyParam("application/json") RegionForOnlineOffline regionParameterForOnline,
            @HeaderParam("Accept") String accept, Context context);

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

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

        @Headers({ "Accept: application/json;q=0.9", "Content-Type: application/json" })
        @Post("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/regenerateKey")
        @ExpectedResponses({ 200, 202 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono>> regenerateKey(@HostParam("$host") String endpoint,
            @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName, @PathParam("accountName") String accountName,
            @QueryParam("api-version") String apiVersion,
            @BodyParam("application/json") DatabaseAccountRegenerateKeyParameters keyToRegenerate, Context context);

        @Headers({ "Accept: application/json;q=0.9", "Content-Type: application/json" })
        @Head("/providers/Microsoft.DocumentDB/databaseAccountNames/{accountName}")
        @ExpectedResponses({ 200, 404 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> checkNameExists(@HostParam("$host") String endpoint,
            @PathParam("accountName") String accountName, @QueryParam("api-version") String apiVersion,
            Context context);

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

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

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

    /**
     * Retrieves the properties of an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 Cosmos DB database account along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono> getByResourceGroupWithResponseAsync(String resourceGroupName,
        String accountName) {
        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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context -> service.getByResourceGroup(this.client.getEndpoint(), this.client.getSubscriptionId(),
                    resourceGroupName, accountName, this.client.getApiVersion(), accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Retrieves the properties of an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 Cosmos DB database account along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> getByResourceGroupWithResponseAsync(String resourceGroupName,
        String accountName, 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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName 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,
            accountName, this.client.getApiVersion(), accept, context);
    }

    /**
     * Retrieves the properties of an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 Cosmos DB database account on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono getByResourceGroupAsync(String resourceGroupName, String accountName) {
        return getByResourceGroupWithResponseAsync(resourceGroupName, accountName)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Retrieves the properties of an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 Cosmos DB database account along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response getByResourceGroupWithResponse(String resourceGroupName,
        String accountName, Context context) {
        return getByResourceGroupWithResponseAsync(resourceGroupName, accountName, context).block();
    }

    /**
     * Retrieves the properties of an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 Cosmos DB database account.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public DatabaseAccountGetResultsInner getByResourceGroup(String resourceGroupName, String accountName) {
        return getByResourceGroupWithResponse(resourceGroupName, accountName, Context.NONE).getValue();
    }

    /**
     * Updates the properties of an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param updateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono>> updateWithResponseAsync(String resourceGroupName, String accountName,
        DatabaseAccountUpdateParameters updateParameters) {
        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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        if (updateParameters == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter updateParameters is required and cannot be null."));
        } else {
            updateParameters.validate();
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.update(this.client.getEndpoint(), this.client.getSubscriptionId(),
                resourceGroupName, accountName, this.client.getApiVersion(), updateParameters, accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Updates the properties of an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param updateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono>> updateWithResponseAsync(String resourceGroupName, String accountName,
        DatabaseAccountUpdateParameters updateParameters, 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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        if (updateParameters == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter updateParameters is required and cannot be null."));
        } else {
            updateParameters.validate();
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.update(this.client.getEndpoint(), this.client.getSubscriptionId(), resourceGroupName,
            accountName, this.client.getApiVersion(), updateParameters, accept, context);
    }

    /**
     * Updates the properties of an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param updateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public PollerFlux, DatabaseAccountGetResultsInner> beginUpdateAsync(
        String resourceGroupName, String accountName, DatabaseAccountUpdateParameters updateParameters) {
        Mono>> mono
            = updateWithResponseAsync(resourceGroupName, accountName, updateParameters);
        return this.client.getLroResult(mono,
            this.client.getHttpPipeline(), DatabaseAccountGetResultsInner.class, DatabaseAccountGetResultsInner.class,
            this.client.getContext());
    }

    /**
     * Updates the properties of an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param updateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    private PollerFlux, DatabaseAccountGetResultsInner> beginUpdateAsync(
        String resourceGroupName, String accountName, DatabaseAccountUpdateParameters updateParameters,
        Context context) {
        context = this.client.mergeContext(context);
        Mono>> mono
            = updateWithResponseAsync(resourceGroupName, accountName, updateParameters, context);
        return this.client.getLroResult(mono,
            this.client.getHttpPipeline(), DatabaseAccountGetResultsInner.class, DatabaseAccountGetResultsInner.class,
            context);
    }

    /**
     * Updates the properties of an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param updateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller, DatabaseAccountGetResultsInner>
        beginUpdate(String resourceGroupName, String accountName, DatabaseAccountUpdateParameters updateParameters) {
        return this.beginUpdateAsync(resourceGroupName, accountName, updateParameters).getSyncPoller();
    }

    /**
     * Updates the properties of an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param updateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller, DatabaseAccountGetResultsInner> beginUpdate(
        String resourceGroupName, String accountName, DatabaseAccountUpdateParameters updateParameters,
        Context context) {
        return this.beginUpdateAsync(resourceGroupName, accountName, updateParameters, context).getSyncPoller();
    }

    /**
     * Updates the properties of an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param updateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono updateAsync(String resourceGroupName, String accountName,
        DatabaseAccountUpdateParameters updateParameters) {
        return beginUpdateAsync(resourceGroupName, accountName, updateParameters).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Updates the properties of an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param updateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono updateAsync(String resourceGroupName, String accountName,
        DatabaseAccountUpdateParameters updateParameters, Context context) {
        return beginUpdateAsync(resourceGroupName, accountName, updateParameters, context).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Updates the properties of an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param updateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public DatabaseAccountGetResultsInner update(String resourceGroupName, String accountName,
        DatabaseAccountUpdateParameters updateParameters) {
        return updateAsync(resourceGroupName, accountName, updateParameters).block();
    }

    /**
     * Updates the properties of an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param updateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public DatabaseAccountGetResultsInner update(String resourceGroupName, String accountName,
        DatabaseAccountUpdateParameters updateParameters, Context context) {
        return updateAsync(resourceGroupName, accountName, updateParameters, context).block();
    }

    /**
     * Creates or updates an Azure Cosmos DB database account. The "Update" method is preferred when performing updates
     * on an account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param createUpdateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono>> createOrUpdateWithResponseAsync(String resourceGroupName,
        String accountName, DatabaseAccountCreateUpdateParameters createUpdateParameters) {
        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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        if (createUpdateParameters == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter createUpdateParameters is required and cannot be null."));
        } else {
            createUpdateParameters.validate();
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.createOrUpdate(this.client.getEndpoint(), this.client.getSubscriptionId(),
                resourceGroupName, accountName, this.client.getApiVersion(), createUpdateParameters, accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Creates or updates an Azure Cosmos DB database account. The "Update" method is preferred when performing updates
     * on an account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param createUpdateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono>> createOrUpdateWithResponseAsync(String resourceGroupName,
        String accountName, DatabaseAccountCreateUpdateParameters createUpdateParameters, 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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        if (createUpdateParameters == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter createUpdateParameters is required and cannot be null."));
        } else {
            createUpdateParameters.validate();
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.createOrUpdate(this.client.getEndpoint(), this.client.getSubscriptionId(), resourceGroupName,
            accountName, this.client.getApiVersion(), createUpdateParameters, accept, context);
    }

    /**
     * Creates or updates an Azure Cosmos DB database account. The "Update" method is preferred when performing updates
     * on an account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param createUpdateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public PollerFlux, DatabaseAccountGetResultsInner>
        beginCreateOrUpdateAsync(String resourceGroupName, String accountName,
            DatabaseAccountCreateUpdateParameters createUpdateParameters) {
        Mono>> mono
            = createOrUpdateWithResponseAsync(resourceGroupName, accountName, createUpdateParameters);
        return this.client.getLroResult(mono,
            this.client.getHttpPipeline(), DatabaseAccountGetResultsInner.class, DatabaseAccountGetResultsInner.class,
            this.client.getContext());
    }

    /**
     * Creates or updates an Azure Cosmos DB database account. The "Update" method is preferred when performing updates
     * on an account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param createUpdateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    private PollerFlux, DatabaseAccountGetResultsInner>
        beginCreateOrUpdateAsync(String resourceGroupName, String accountName,
            DatabaseAccountCreateUpdateParameters createUpdateParameters, Context context) {
        context = this.client.mergeContext(context);
        Mono>> mono
            = createOrUpdateWithResponseAsync(resourceGroupName, accountName, createUpdateParameters, context);
        return this.client.getLroResult(mono,
            this.client.getHttpPipeline(), DatabaseAccountGetResultsInner.class, DatabaseAccountGetResultsInner.class,
            context);
    }

    /**
     * Creates or updates an Azure Cosmos DB database account. The "Update" method is preferred when performing updates
     * on an account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param createUpdateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller, DatabaseAccountGetResultsInner> beginCreateOrUpdate(
        String resourceGroupName, String accountName, DatabaseAccountCreateUpdateParameters createUpdateParameters) {
        return this.beginCreateOrUpdateAsync(resourceGroupName, accountName, createUpdateParameters).getSyncPoller();
    }

    /**
     * Creates or updates an Azure Cosmos DB database account. The "Update" method is preferred when performing updates
     * on an account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param createUpdateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account.
     */
    @ServiceMethod(returns = ReturnType.LONG_RUNNING_OPERATION)
    public SyncPoller, DatabaseAccountGetResultsInner> beginCreateOrUpdate(
        String resourceGroupName, String accountName, DatabaseAccountCreateUpdateParameters createUpdateParameters,
        Context context) {
        return this.beginCreateOrUpdateAsync(resourceGroupName, accountName, createUpdateParameters, context)
            .getSyncPoller();
    }

    /**
     * Creates or updates an Azure Cosmos DB database account. The "Update" method is preferred when performing updates
     * on an account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param createUpdateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono createOrUpdateAsync(String resourceGroupName, String accountName,
        DatabaseAccountCreateUpdateParameters createUpdateParameters) {
        return beginCreateOrUpdateAsync(resourceGroupName, accountName, createUpdateParameters).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Creates or updates an Azure Cosmos DB database account. The "Update" method is preferred when performing updates
     * on an account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param createUpdateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono createOrUpdateAsync(String resourceGroupName, String accountName,
        DatabaseAccountCreateUpdateParameters createUpdateParameters, Context context) {
        return beginCreateOrUpdateAsync(resourceGroupName, accountName, createUpdateParameters, context).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Creates or updates an Azure Cosmos DB database account. The "Update" method is preferred when performing updates
     * on an account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param createUpdateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public DatabaseAccountGetResultsInner createOrUpdate(String resourceGroupName, String accountName,
        DatabaseAccountCreateUpdateParameters createUpdateParameters) {
        return createOrUpdateAsync(resourceGroupName, accountName, createUpdateParameters).block();
    }

    /**
     * Creates or updates an Azure Cosmos DB database account. The "Update" method is preferred when performing updates
     * on an account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param createUpdateParameters The parameters to provide for the current database account.
     * @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 Cosmos DB database account.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public DatabaseAccountGetResultsInner createOrUpdate(String resourceGroupName, String accountName,
        DatabaseAccountCreateUpdateParameters createUpdateParameters, Context context) {
        return createOrUpdateAsync(resourceGroupName, accountName, createUpdateParameters, context).block();
    }

    /**
     * Deletes an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 accountName) {
        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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        return FluxUtil
            .withContext(context -> service.delete(this.client.getEndpoint(), this.client.getSubscriptionId(),
                resourceGroupName, accountName, this.client.getApiVersion(), context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Deletes an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 accountName,
        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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        context = this.client.mergeContext(context);
        return service.delete(this.client.getEndpoint(), this.client.getSubscriptionId(), resourceGroupName,
            accountName, this.client.getApiVersion(), context);
    }

    /**
     * Deletes an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 accountName) {
        Mono>> mono = deleteWithResponseAsync(resourceGroupName, accountName);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class,
            this.client.getContext());
    }

    /**
     * Deletes an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 accountName,
        Context context) {
        context = this.client.mergeContext(context);
        Mono>> mono = deleteWithResponseAsync(resourceGroupName, accountName, context);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class,
            context);
    }

    /**
     * Deletes an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 accountName) {
        return this.beginDeleteAsync(resourceGroupName, accountName).getSyncPoller();
    }

    /**
     * Deletes an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 accountName,
        Context context) {
        return this.beginDeleteAsync(resourceGroupName, accountName, context).getSyncPoller();
    }

    /**
     * Deletes an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 accountName) {
        return beginDeleteAsync(resourceGroupName, accountName).last().flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Deletes an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 accountName, Context context) {
        return beginDeleteAsync(resourceGroupName, accountName, context).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Deletes an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 accountName) {
        deleteAsync(resourceGroupName, accountName).block();
    }

    /**
     * Deletes an existing Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 accountName, Context context) {
        deleteAsync(resourceGroupName, accountName, context).block();
    }

    /**
     * Changes the failover priority for the Azure Cosmos DB database account. A failover priority of 0 indicates a
     * write region. The maximum value for a failover priority = (total number of regions - 1). Failover priority values
     * must be unique for each of the regions in which the database account exists.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param failoverParameters The new failover policies for the database account.
     * @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>> failoverPriorityChangeWithResponseAsync(String resourceGroupName,
        String accountName, FailoverPolicies failoverParameters) {
        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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        if (failoverParameters == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter failoverParameters is required and cannot be null."));
        } else {
            failoverParameters.validate();
        }
        return FluxUtil
            .withContext(
                context -> service.failoverPriorityChange(this.client.getEndpoint(), this.client.getSubscriptionId(),
                    resourceGroupName, accountName, this.client.getApiVersion(), failoverParameters, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Changes the failover priority for the Azure Cosmos DB database account. A failover priority of 0 indicates a
     * write region. The maximum value for a failover priority = (total number of regions - 1). Failover priority values
     * must be unique for each of the regions in which the database account exists.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param failoverParameters The new failover policies for the database account.
     * @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>> failoverPriorityChangeWithResponseAsync(String resourceGroupName,
        String accountName, FailoverPolicies failoverParameters, 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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        if (failoverParameters == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter failoverParameters is required and cannot be null."));
        } else {
            failoverParameters.validate();
        }
        context = this.client.mergeContext(context);
        return service.failoverPriorityChange(this.client.getEndpoint(), this.client.getSubscriptionId(),
            resourceGroupName, accountName, this.client.getApiVersion(), failoverParameters, context);
    }

    /**
     * Changes the failover priority for the Azure Cosmos DB database account. A failover priority of 0 indicates a
     * write region. The maximum value for a failover priority = (total number of regions - 1). Failover priority values
     * must be unique for each of the regions in which the database account exists.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param failoverParameters The new failover policies for the database account.
     * @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> beginFailoverPriorityChangeAsync(String resourceGroupName,
        String accountName, FailoverPolicies failoverParameters) {
        Mono>> mono
            = failoverPriorityChangeWithResponseAsync(resourceGroupName, accountName, failoverParameters);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class,
            this.client.getContext());
    }

    /**
     * Changes the failover priority for the Azure Cosmos DB database account. A failover priority of 0 indicates a
     * write region. The maximum value for a failover priority = (total number of regions - 1). Failover priority values
     * must be unique for each of the regions in which the database account exists.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param failoverParameters The new failover policies for the database account.
     * @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> beginFailoverPriorityChangeAsync(String resourceGroupName,
        String accountName, FailoverPolicies failoverParameters, Context context) {
        context = this.client.mergeContext(context);
        Mono>> mono
            = failoverPriorityChangeWithResponseAsync(resourceGroupName, accountName, failoverParameters, context);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class,
            context);
    }

    /**
     * Changes the failover priority for the Azure Cosmos DB database account. A failover priority of 0 indicates a
     * write region. The maximum value for a failover priority = (total number of regions - 1). Failover priority values
     * must be unique for each of the regions in which the database account exists.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param failoverParameters The new failover policies for the database account.
     * @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> beginFailoverPriorityChange(String resourceGroupName, String accountName,
        FailoverPolicies failoverParameters) {
        return this.beginFailoverPriorityChangeAsync(resourceGroupName, accountName, failoverParameters)
            .getSyncPoller();
    }

    /**
     * Changes the failover priority for the Azure Cosmos DB database account. A failover priority of 0 indicates a
     * write region. The maximum value for a failover priority = (total number of regions - 1). Failover priority values
     * must be unique for each of the regions in which the database account exists.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param failoverParameters The new failover policies for the database account.
     * @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> beginFailoverPriorityChange(String resourceGroupName, String accountName,
        FailoverPolicies failoverParameters, Context context) {
        return this.beginFailoverPriorityChangeAsync(resourceGroupName, accountName, failoverParameters, context)
            .getSyncPoller();
    }

    /**
     * Changes the failover priority for the Azure Cosmos DB database account. A failover priority of 0 indicates a
     * write region. The maximum value for a failover priority = (total number of regions - 1). Failover priority values
     * must be unique for each of the regions in which the database account exists.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param failoverParameters The new failover policies for the database account.
     * @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 failoverPriorityChangeAsync(String resourceGroupName, String accountName,
        FailoverPolicies failoverParameters) {
        return beginFailoverPriorityChangeAsync(resourceGroupName, accountName, failoverParameters).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Changes the failover priority for the Azure Cosmos DB database account. A failover priority of 0 indicates a
     * write region. The maximum value for a failover priority = (total number of regions - 1). Failover priority values
     * must be unique for each of the regions in which the database account exists.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param failoverParameters The new failover policies for the database account.
     * @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 failoverPriorityChangeAsync(String resourceGroupName, String accountName,
        FailoverPolicies failoverParameters, Context context) {
        return beginFailoverPriorityChangeAsync(resourceGroupName, accountName, failoverParameters, context).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Changes the failover priority for the Azure Cosmos DB database account. A failover priority of 0 indicates a
     * write region. The maximum value for a failover priority = (total number of regions - 1). Failover priority values
     * must be unique for each of the regions in which the database account exists.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param failoverParameters The new failover policies for the database account.
     * @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 failoverPriorityChange(String resourceGroupName, String accountName,
        FailoverPolicies failoverParameters) {
        failoverPriorityChangeAsync(resourceGroupName, accountName, failoverParameters).block();
    }

    /**
     * Changes the failover priority for the Azure Cosmos DB database account. A failover priority of 0 indicates a
     * write region. The maximum value for a failover priority = (total number of regions - 1). Failover priority values
     * must be unique for each of the regions in which the database account exists.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param failoverParameters The new failover policies for the database account.
     * @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 failoverPriorityChange(String resourceGroupName, String accountName,
        FailoverPolicies failoverParameters, Context context) {
        failoverPriorityChangeAsync(resourceGroupName, accountName, failoverParameters, context).block();
    }

    /**
     * Lists all the Azure Cosmos DB database accounts available under 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 the List operation response, that contains the database accounts and their properties 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.getApiVersion(),
                this.client.getSubscriptionId(), 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()));
    }

    /**
     * Lists all the Azure Cosmos DB database accounts available under 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 the List operation response, that contains the database accounts and their properties 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.getApiVersion(), this.client.getSubscriptionId(), accept,
                context)
            .map(res -> new PagedResponseBase<>(res.getRequest(), res.getStatusCode(), res.getHeaders(),
                res.getValue().value(), null, null));
    }

    /**
     * Lists all the Azure Cosmos DB database accounts available under 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 the List operation response, that contains the database accounts and their properties as paginated
     * response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedFlux listAsync() {
        return new PagedFlux<>(() -> listSinglePageAsync());
    }

    /**
     * Lists all the Azure Cosmos DB database accounts available under 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 the List operation response, that contains the database accounts and their properties as paginated
     * response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux listAsync(Context context) {
        return new PagedFlux<>(() -> listSinglePageAsync(context));
    }

    /**
     * Lists all the Azure Cosmos DB database accounts available under 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 the List operation response, that contains the database accounts and their properties as paginated
     * response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable list() {
        return new PagedIterable<>(listAsync());
    }

    /**
     * Lists all the Azure Cosmos DB database accounts available under 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 the List operation response, that contains the database accounts and their properties as paginated
     * response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable list(Context context) {
        return new PagedIterable<>(listAsync(context));
    }

    /**
     * Lists all the Azure Cosmos DB database accounts available under the given resource group.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @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 List operation response, that contains the database accounts and their properties 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.getApiVersion(), this.client.getSubscriptionId(), 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()));
    }

    /**
     * Lists all the Azure Cosmos DB database accounts available under the given resource group.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @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 List operation response, that contains the database accounts and their properties 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.getApiVersion(),
                this.client.getSubscriptionId(), accept, context)
            .map(res -> new PagedResponseBase<>(res.getRequest(), res.getStatusCode(), res.getHeaders(),
                res.getValue().value(), null, null));
    }

    /**
     * Lists all the Azure Cosmos DB database accounts available under the given resource group.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @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 List operation response, that contains the database accounts and their properties as paginated
     * response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedFlux listByResourceGroupAsync(String resourceGroupName) {
        return new PagedFlux<>(() -> listByResourceGroupSinglePageAsync(resourceGroupName));
    }

    /**
     * Lists all the Azure Cosmos DB database accounts available under the given resource group.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @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 List operation response, that contains the database accounts and their properties as paginated
     * response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux listByResourceGroupAsync(String resourceGroupName,
        Context context) {
        return new PagedFlux<>(() -> listByResourceGroupSinglePageAsync(resourceGroupName, context));
    }

    /**
     * Lists all the Azure Cosmos DB database accounts available under the given resource group.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @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 List operation response, that contains the database accounts and their properties as paginated
     * response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable listByResourceGroup(String resourceGroupName) {
        return new PagedIterable<>(listByResourceGroupAsync(resourceGroupName));
    }

    /**
     * Lists all the Azure Cosmos DB database accounts available under the given resource group.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @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 List operation response, that contains the database accounts and their properties as paginated
     * response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable listByResourceGroup(String resourceGroupName,
        Context context) {
        return new PagedIterable<>(listByResourceGroupAsync(resourceGroupName, context));
    }

    /**
     * Lists the access keys for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 access keys for the given database account along with {@link Response} on successful completion of
     * {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono> listKeysWithResponseAsync(String resourceGroupName,
        String accountName) {
        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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.listKeys(this.client.getEndpoint(), this.client.getSubscriptionId(),
                resourceGroupName, accountName, this.client.getApiVersion(), accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Lists the access keys for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 access keys for the given database account along with {@link Response} on successful completion of
     * {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listKeysWithResponseAsync(String resourceGroupName,
        String accountName, 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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.listKeys(this.client.getEndpoint(), this.client.getSubscriptionId(), resourceGroupName,
            accountName, this.client.getApiVersion(), accept, context);
    }

    /**
     * Lists the access keys for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 access keys for the given database account on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono listKeysAsync(String resourceGroupName, String accountName) {
        return listKeysWithResponseAsync(resourceGroupName, accountName)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Lists the access keys for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 access keys for the given database account along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response listKeysWithResponse(String resourceGroupName,
        String accountName, Context context) {
        return listKeysWithResponseAsync(resourceGroupName, accountName, context).block();
    }

    /**
     * Lists the access keys for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 access keys for the given database account.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public DatabaseAccountListKeysResultInner listKeys(String resourceGroupName, String accountName) {
        return listKeysWithResponse(resourceGroupName, accountName, Context.NONE).getValue();
    }

    /**
     * Lists the connection strings for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 connection strings for the given database account along with {@link Response} on successful
     * completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono>
        listConnectionStringsWithResponseAsync(String resourceGroupName, String accountName) {
        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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context -> service.listConnectionStrings(this.client.getEndpoint(), this.client.getSubscriptionId(),
                    resourceGroupName, accountName, this.client.getApiVersion(), accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Lists the connection strings for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 connection strings for the given database account along with {@link Response} on successful
     * completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono>
        listConnectionStringsWithResponseAsync(String resourceGroupName, String accountName, 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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.listConnectionStrings(this.client.getEndpoint(), this.client.getSubscriptionId(),
            resourceGroupName, accountName, this.client.getApiVersion(), accept, context);
    }

    /**
     * Lists the connection strings for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 connection strings for the given database account on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono listConnectionStringsAsync(String resourceGroupName,
        String accountName) {
        return listConnectionStringsWithResponseAsync(resourceGroupName, accountName)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Lists the connection strings for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 connection strings for the given database account along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response
        listConnectionStringsWithResponse(String resourceGroupName, String accountName, Context context) {
        return listConnectionStringsWithResponseAsync(resourceGroupName, accountName, context).block();
    }

    /**
     * Lists the connection strings for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 connection strings for the given database account.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public DatabaseAccountListConnectionStringsResultInner listConnectionStrings(String resourceGroupName,
        String accountName) {
        return listConnectionStringsWithResponse(resourceGroupName, accountName, Context.NONE).getValue();
    }

    /**
     * Offline the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOffline Cosmos DB region to offline for the database account.
     * @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>> offlineRegionWithResponseAsync(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOffline) {
        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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        if (regionParameterForOffline == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter regionParameterForOffline is required and cannot be null."));
        } else {
            regionParameterForOffline.validate();
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.offlineRegion(this.client.getEndpoint(), this.client.getSubscriptionId(),
                resourceGroupName, accountName, this.client.getApiVersion(), regionParameterForOffline, accept,
                context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Offline the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOffline Cosmos DB region to offline for the database account.
     * @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>> offlineRegionWithResponseAsync(String resourceGroupName,
        String accountName, RegionForOnlineOffline regionParameterForOffline, 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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        if (regionParameterForOffline == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter regionParameterForOffline is required and cannot be null."));
        } else {
            regionParameterForOffline.validate();
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.offlineRegion(this.client.getEndpoint(), this.client.getSubscriptionId(), resourceGroupName,
            accountName, this.client.getApiVersion(), regionParameterForOffline, accept, context);
    }

    /**
     * Offline the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOffline Cosmos DB region to offline for the database account.
     * @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> beginOfflineRegionAsync(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOffline) {
        Mono>> mono
            = offlineRegionWithResponseAsync(resourceGroupName, accountName, regionParameterForOffline);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class,
            this.client.getContext());
    }

    /**
     * Offline the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOffline Cosmos DB region to offline for the database account.
     * @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> beginOfflineRegionAsync(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOffline, Context context) {
        context = this.client.mergeContext(context);
        Mono>> mono
            = offlineRegionWithResponseAsync(resourceGroupName, accountName, regionParameterForOffline, context);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class,
            context);
    }

    /**
     * Offline the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOffline Cosmos DB region to offline for the database account.
     * @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> beginOfflineRegion(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOffline) {
        return this.beginOfflineRegionAsync(resourceGroupName, accountName, regionParameterForOffline).getSyncPoller();
    }

    /**
     * Offline the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOffline Cosmos DB region to offline for the database account.
     * @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> beginOfflineRegion(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOffline, Context context) {
        return this.beginOfflineRegionAsync(resourceGroupName, accountName, regionParameterForOffline, context)
            .getSyncPoller();
    }

    /**
     * Offline the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOffline Cosmos DB region to offline for the database account.
     * @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 offlineRegionAsync(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOffline) {
        return beginOfflineRegionAsync(resourceGroupName, accountName, regionParameterForOffline).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Offline the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOffline Cosmos DB region to offline for the database account.
     * @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 offlineRegionAsync(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOffline, Context context) {
        return beginOfflineRegionAsync(resourceGroupName, accountName, regionParameterForOffline, context).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Offline the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOffline Cosmos DB region to offline for the database account.
     * @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 offlineRegion(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOffline) {
        offlineRegionAsync(resourceGroupName, accountName, regionParameterForOffline).block();
    }

    /**
     * Offline the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOffline Cosmos DB region to offline for the database account.
     * @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 offlineRegion(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOffline, Context context) {
        offlineRegionAsync(resourceGroupName, accountName, regionParameterForOffline, context).block();
    }

    /**
     * Online the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOnline Cosmos DB region to online for the database account.
     * @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>> onlineRegionWithResponseAsync(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOnline) {
        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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        if (regionParameterForOnline == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter regionParameterForOnline is required and cannot be null."));
        } else {
            regionParameterForOnline.validate();
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.onlineRegion(this.client.getEndpoint(), this.client.getSubscriptionId(),
                resourceGroupName, accountName, this.client.getApiVersion(), regionParameterForOnline, accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Online the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOnline Cosmos DB region to online for the database account.
     * @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>> onlineRegionWithResponseAsync(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOnline, 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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        if (regionParameterForOnline == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter regionParameterForOnline is required and cannot be null."));
        } else {
            regionParameterForOnline.validate();
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.onlineRegion(this.client.getEndpoint(), this.client.getSubscriptionId(), resourceGroupName,
            accountName, this.client.getApiVersion(), regionParameterForOnline, accept, context);
    }

    /**
     * Online the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOnline Cosmos DB region to online for the database account.
     * @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> beginOnlineRegionAsync(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOnline) {
        Mono>> mono
            = onlineRegionWithResponseAsync(resourceGroupName, accountName, regionParameterForOnline);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class,
            this.client.getContext());
    }

    /**
     * Online the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOnline Cosmos DB region to online for the database account.
     * @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> beginOnlineRegionAsync(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOnline, Context context) {
        context = this.client.mergeContext(context);
        Mono>> mono
            = onlineRegionWithResponseAsync(resourceGroupName, accountName, regionParameterForOnline, context);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class,
            context);
    }

    /**
     * Online the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOnline Cosmos DB region to online for the database account.
     * @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> beginOnlineRegion(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOnline) {
        return this.beginOnlineRegionAsync(resourceGroupName, accountName, regionParameterForOnline).getSyncPoller();
    }

    /**
     * Online the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOnline Cosmos DB region to online for the database account.
     * @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> beginOnlineRegion(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOnline, Context context) {
        return this.beginOnlineRegionAsync(resourceGroupName, accountName, regionParameterForOnline, context)
            .getSyncPoller();
    }

    /**
     * Online the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOnline Cosmos DB region to online for the database account.
     * @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 onlineRegionAsync(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOnline) {
        return beginOnlineRegionAsync(resourceGroupName, accountName, regionParameterForOnline).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Online the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOnline Cosmos DB region to online for the database account.
     * @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 onlineRegionAsync(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOnline, Context context) {
        return beginOnlineRegionAsync(resourceGroupName, accountName, regionParameterForOnline, context).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Online the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOnline Cosmos DB region to online for the database account.
     * @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 onlineRegion(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOnline) {
        onlineRegionAsync(resourceGroupName, accountName, regionParameterForOnline).block();
    }

    /**
     * Online the specified region for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param regionParameterForOnline Cosmos DB region to online for the database account.
     * @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 onlineRegion(String resourceGroupName, String accountName,
        RegionForOnlineOffline regionParameterForOnline, Context context) {
        onlineRegionAsync(resourceGroupName, accountName, regionParameterForOnline, context).block();
    }

    /**
     * Lists the read-only access keys for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 read-only access keys for the given database account along with {@link Response} on successful
     * completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono>
        getReadOnlyKeysWithResponseAsync(String resourceGroupName, String accountName) {
        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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.getReadOnlyKeys(this.client.getEndpoint(), this.client.getSubscriptionId(),
                resourceGroupName, accountName, this.client.getApiVersion(), accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Lists the read-only access keys for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 read-only access keys for the given database account along with {@link Response} on successful
     * completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono>
        getReadOnlyKeysWithResponseAsync(String resourceGroupName, String accountName, 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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.getReadOnlyKeys(this.client.getEndpoint(), this.client.getSubscriptionId(), resourceGroupName,
            accountName, this.client.getApiVersion(), accept, context);
    }

    /**
     * Lists the read-only access keys for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 read-only access keys for the given database account on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono getReadOnlyKeysAsync(String resourceGroupName,
        String accountName) {
        return getReadOnlyKeysWithResponseAsync(resourceGroupName, accountName)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Lists the read-only access keys for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 read-only access keys for the given database account along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response getReadOnlyKeysWithResponse(String resourceGroupName,
        String accountName, Context context) {
        return getReadOnlyKeysWithResponseAsync(resourceGroupName, accountName, context).block();
    }

    /**
     * Lists the read-only access keys for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 read-only access keys for the given database account.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public DatabaseAccountListReadOnlyKeysResultInner getReadOnlyKeys(String resourceGroupName, String accountName) {
        return getReadOnlyKeysWithResponse(resourceGroupName, accountName, Context.NONE).getValue();
    }

    /**
     * Lists the read-only access keys for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 read-only access keys for the given database account along with {@link Response} on successful
     * completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono>
        listReadOnlyKeysWithResponseAsync(String resourceGroupName, String accountName) {
        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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.listReadOnlyKeys(this.client.getEndpoint(), this.client.getSubscriptionId(),
                resourceGroupName, accountName, this.client.getApiVersion(), accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Lists the read-only access keys for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 read-only access keys for the given database account along with {@link Response} on successful
     * completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono>
        listReadOnlyKeysWithResponseAsync(String resourceGroupName, String accountName, 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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.listReadOnlyKeys(this.client.getEndpoint(), this.client.getSubscriptionId(), resourceGroupName,
            accountName, this.client.getApiVersion(), accept, context);
    }

    /**
     * Lists the read-only access keys for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 read-only access keys for the given database account on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono listReadOnlyKeysAsync(String resourceGroupName,
        String accountName) {
        return listReadOnlyKeysWithResponseAsync(resourceGroupName, accountName)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Lists the read-only access keys for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 read-only access keys for the given database account along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response listReadOnlyKeysWithResponse(String resourceGroupName,
        String accountName, Context context) {
        return listReadOnlyKeysWithResponseAsync(resourceGroupName, accountName, context).block();
    }

    /**
     * Lists the read-only access keys for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 read-only access keys for the given database account.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public DatabaseAccountListReadOnlyKeysResultInner listReadOnlyKeys(String resourceGroupName, String accountName) {
        return listReadOnlyKeysWithResponse(resourceGroupName, accountName, Context.NONE).getValue();
    }

    /**
     * Regenerates an access key for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param keyToRegenerate The name of the key to regenerate.
     * @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>> regenerateKeyWithResponseAsync(String resourceGroupName, String accountName,
        DatabaseAccountRegenerateKeyParameters keyToRegenerate) {
        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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        if (keyToRegenerate == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter keyToRegenerate is required and cannot be null."));
        } else {
            keyToRegenerate.validate();
        }
        return FluxUtil
            .withContext(context -> service.regenerateKey(this.client.getEndpoint(), this.client.getSubscriptionId(),
                resourceGroupName, accountName, this.client.getApiVersion(), keyToRegenerate, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Regenerates an access key for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param keyToRegenerate The name of the key to regenerate.
     * @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>> regenerateKeyWithResponseAsync(String resourceGroupName,
        String accountName, DatabaseAccountRegenerateKeyParameters keyToRegenerate, 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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        if (keyToRegenerate == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter keyToRegenerate is required and cannot be null."));
        } else {
            keyToRegenerate.validate();
        }
        context = this.client.mergeContext(context);
        return service.regenerateKey(this.client.getEndpoint(), this.client.getSubscriptionId(), resourceGroupName,
            accountName, this.client.getApiVersion(), keyToRegenerate, context);
    }

    /**
     * Regenerates an access key for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param keyToRegenerate The name of the key to regenerate.
     * @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> beginRegenerateKeyAsync(String resourceGroupName, String accountName,
        DatabaseAccountRegenerateKeyParameters keyToRegenerate) {
        Mono>> mono
            = regenerateKeyWithResponseAsync(resourceGroupName, accountName, keyToRegenerate);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class,
            this.client.getContext());
    }

    /**
     * Regenerates an access key for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param keyToRegenerate The name of the key to regenerate.
     * @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> beginRegenerateKeyAsync(String resourceGroupName, String accountName,
        DatabaseAccountRegenerateKeyParameters keyToRegenerate, Context context) {
        context = this.client.mergeContext(context);
        Mono>> mono
            = regenerateKeyWithResponseAsync(resourceGroupName, accountName, keyToRegenerate, context);
        return this.client.getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class,
            context);
    }

    /**
     * Regenerates an access key for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param keyToRegenerate The name of the key to regenerate.
     * @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> beginRegenerateKey(String resourceGroupName, String accountName,
        DatabaseAccountRegenerateKeyParameters keyToRegenerate) {
        return this.beginRegenerateKeyAsync(resourceGroupName, accountName, keyToRegenerate).getSyncPoller();
    }

    /**
     * Regenerates an access key for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param keyToRegenerate The name of the key to regenerate.
     * @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> beginRegenerateKey(String resourceGroupName, String accountName,
        DatabaseAccountRegenerateKeyParameters keyToRegenerate, Context context) {
        return this.beginRegenerateKeyAsync(resourceGroupName, accountName, keyToRegenerate, context).getSyncPoller();
    }

    /**
     * Regenerates an access key for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param keyToRegenerate The name of the key to regenerate.
     * @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 regenerateKeyAsync(String resourceGroupName, String accountName,
        DatabaseAccountRegenerateKeyParameters keyToRegenerate) {
        return beginRegenerateKeyAsync(resourceGroupName, accountName, keyToRegenerate).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Regenerates an access key for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param keyToRegenerate The name of the key to regenerate.
     * @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 regenerateKeyAsync(String resourceGroupName, String accountName,
        DatabaseAccountRegenerateKeyParameters keyToRegenerate, Context context) {
        return beginRegenerateKeyAsync(resourceGroupName, accountName, keyToRegenerate, context).last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * Regenerates an access key for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param keyToRegenerate The name of the key to regenerate.
     * @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 regenerateKey(String resourceGroupName, String accountName,
        DatabaseAccountRegenerateKeyParameters keyToRegenerate) {
        regenerateKeyAsync(resourceGroupName, accountName, keyToRegenerate).block();
    }

    /**
     * Regenerates an access key for the specified Azure Cosmos DB database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param keyToRegenerate The name of the key to regenerate.
     * @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 regenerateKey(String resourceGroupName, String accountName,
        DatabaseAccountRegenerateKeyParameters keyToRegenerate, Context context) {
        regenerateKeyAsync(resourceGroupName, accountName, keyToRegenerate, context).block();
    }

    /**
     * Checks that the Azure Cosmos DB account name already exists. A valid account name may contain only lowercase
     * letters, numbers, and the '-' character, and must be between 3 and 50 characters.
     * 
     * @param accountName Cosmos DB database account name.
     * @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 whether resource exists along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono> checkNameExistsWithResponseAsync(String accountName) {
        if (this.client.getEndpoint() == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        return FluxUtil
            .withContext(context -> service.checkNameExists(this.client.getEndpoint(), accountName,
                this.client.getApiVersion(), context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Checks that the Azure Cosmos DB account name already exists. A valid account name may contain only lowercase
     * letters, numbers, and the '-' character, and must be between 3 and 50 characters.
     * 
     * @param accountName Cosmos DB database account name.
     * @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 whether resource exists along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> checkNameExistsWithResponseAsync(String accountName, Context context) {
        if (this.client.getEndpoint() == null) {
            return Mono.error(
                new IllegalArgumentException("Parameter this.client.getEndpoint() is required and cannot be null."));
        }
        if (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        context = this.client.mergeContext(context);
        return service.checkNameExists(this.client.getEndpoint(), accountName, this.client.getApiVersion(), context);
    }

    /**
     * Checks that the Azure Cosmos DB account name already exists. A valid account name may contain only lowercase
     * letters, numbers, and the '-' character, and must be between 3 and 50 characters.
     * 
     * @param accountName Cosmos DB database account name.
     * @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 whether resource exists on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono checkNameExistsAsync(String accountName) {
        return checkNameExistsWithResponseAsync(accountName).flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Checks that the Azure Cosmos DB account name already exists. A valid account name may contain only lowercase
     * letters, numbers, and the '-' character, and must be between 3 and 50 characters.
     * 
     * @param accountName Cosmos DB database account name.
     * @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 whether resource exists along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response checkNameExistsWithResponse(String accountName, Context context) {
        return checkNameExistsWithResponseAsync(accountName, context).block();
    }

    /**
     * Checks that the Azure Cosmos DB account name already exists. A valid account name may contain only lowercase
     * letters, numbers, and the '-' character, and must be between 3 and 50 characters.
     * 
     * @param accountName Cosmos DB database account name.
     * @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 whether resource exists.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public boolean checkNameExists(String accountName) {
        return checkNameExistsWithResponse(accountName, Context.NONE).getValue();
    }

    /**
     * Retrieves the metrics determined by the given filter for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param filter An OData filter expression that describes a subset of metrics to return. The parameters that can be
     * filtered are name.value (name of the metric, can have an or of multiple names), startTime, endTime, and
     * timeGrain. The supported operator is eq.
     * @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 to a list metrics request along with {@link PagedResponse} on successful completion of
     * {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listMetricsSinglePageAsync(String resourceGroupName, String accountName,
        String filter) {
        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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        if (filter == null) {
            return Mono.error(new IllegalArgumentException("Parameter filter is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.listMetrics(this.client.getEndpoint(), this.client.getSubscriptionId(),
                resourceGroupName, accountName, this.client.getApiVersion(), filter, 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()));
    }

    /**
     * Retrieves the metrics determined by the given filter for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param filter An OData filter expression that describes a subset of metrics to return. The parameters that can be
     * filtered are name.value (name of the metric, can have an or of multiple names), startTime, endTime, and
     * timeGrain. The supported operator is eq.
     * @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 to a list metrics request along with {@link PagedResponse} on successful completion of
     * {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listMetricsSinglePageAsync(String resourceGroupName, String accountName,
        String filter, 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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        if (filter == null) {
            return Mono.error(new IllegalArgumentException("Parameter filter is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .listMetrics(this.client.getEndpoint(), this.client.getSubscriptionId(), resourceGroupName, accountName,
                this.client.getApiVersion(), filter, accept, context)
            .map(res -> new PagedResponseBase<>(res.getRequest(), res.getStatusCode(), res.getHeaders(),
                res.getValue().value(), null, null));
    }

    /**
     * Retrieves the metrics determined by the given filter for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param filter An OData filter expression that describes a subset of metrics to return. The parameters that can be
     * filtered are name.value (name of the metric, can have an or of multiple names), startTime, endTime, and
     * timeGrain. The supported operator is eq.
     * @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 to a list metrics request as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedFlux listMetricsAsync(String resourceGroupName, String accountName, String filter) {
        return new PagedFlux<>(() -> listMetricsSinglePageAsync(resourceGroupName, accountName, filter));
    }

    /**
     * Retrieves the metrics determined by the given filter for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param filter An OData filter expression that describes a subset of metrics to return. The parameters that can be
     * filtered are name.value (name of the metric, can have an or of multiple names), startTime, endTime, and
     * timeGrain. The supported operator is eq.
     * @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 to a list metrics request as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux listMetricsAsync(String resourceGroupName, String accountName, String filter,
        Context context) {
        return new PagedFlux<>(() -> listMetricsSinglePageAsync(resourceGroupName, accountName, filter, context));
    }

    /**
     * Retrieves the metrics determined by the given filter for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param filter An OData filter expression that describes a subset of metrics to return. The parameters that can be
     * filtered are name.value (name of the metric, can have an or of multiple names), startTime, endTime, and
     * timeGrain. The supported operator is eq.
     * @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 to a list metrics request as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable listMetrics(String resourceGroupName, String accountName, String filter) {
        return new PagedIterable<>(listMetricsAsync(resourceGroupName, accountName, filter));
    }

    /**
     * Retrieves the metrics determined by the given filter for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param filter An OData filter expression that describes a subset of metrics to return. The parameters that can be
     * filtered are name.value (name of the metric, can have an or of multiple names), startTime, endTime, and
     * timeGrain. The supported operator is eq.
     * @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 to a list metrics request as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable listMetrics(String resourceGroupName, String accountName, String filter,
        Context context) {
        return new PagedIterable<>(listMetricsAsync(resourceGroupName, accountName, filter, context));
    }

    /**
     * Retrieves the usages (most recent data) for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param filter An OData filter expression that describes a subset of usages to return. The supported parameter is
     * name.value (name of the metric, can have an or of multiple names).
     * @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 to a list usage request along with {@link PagedResponse} on successful completion of
     * {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listUsagesSinglePageAsync(String resourceGroupName, String accountName,
        String filter) {
        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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.listUsages(this.client.getEndpoint(), this.client.getSubscriptionId(),
                resourceGroupName, accountName, this.client.getApiVersion(), filter, 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()));
    }

    /**
     * Retrieves the usages (most recent data) for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param filter An OData filter expression that describes a subset of usages to return. The supported parameter is
     * name.value (name of the metric, can have an or of multiple names).
     * @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 to a list usage request along with {@link PagedResponse} on successful completion of
     * {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listUsagesSinglePageAsync(String resourceGroupName, String accountName,
        String filter, 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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .listUsages(this.client.getEndpoint(), this.client.getSubscriptionId(), resourceGroupName, accountName,
                this.client.getApiVersion(), filter, accept, context)
            .map(res -> new PagedResponseBase<>(res.getRequest(), res.getStatusCode(), res.getHeaders(),
                res.getValue().value(), null, null));
    }

    /**
     * Retrieves the usages (most recent data) for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param filter An OData filter expression that describes a subset of usages to return. The supported parameter is
     * name.value (name of the metric, can have an or of multiple names).
     * @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 to a list usage request as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedFlux listUsagesAsync(String resourceGroupName, String accountName, String filter) {
        return new PagedFlux<>(() -> listUsagesSinglePageAsync(resourceGroupName, accountName, filter));
    }

    /**
     * Retrieves the usages (most recent data) for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 to a list usage request as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedFlux listUsagesAsync(String resourceGroupName, String accountName) {
        final String filter = null;
        return new PagedFlux<>(() -> listUsagesSinglePageAsync(resourceGroupName, accountName, filter));
    }

    /**
     * Retrieves the usages (most recent data) for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param filter An OData filter expression that describes a subset of usages to return. The supported parameter is
     * name.value (name of the metric, can have an or of multiple names).
     * @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 to a list usage request as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux listUsagesAsync(String resourceGroupName, String accountName, String filter,
        Context context) {
        return new PagedFlux<>(() -> listUsagesSinglePageAsync(resourceGroupName, accountName, filter, context));
    }

    /**
     * Retrieves the usages (most recent data) for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 to a list usage request as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable listUsages(String resourceGroupName, String accountName) {
        final String filter = null;
        return new PagedIterable<>(listUsagesAsync(resourceGroupName, accountName, filter));
    }

    /**
     * Retrieves the usages (most recent data) for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @param filter An OData filter expression that describes a subset of usages to return. The supported parameter is
     * name.value (name of the metric, can have an or of multiple names).
     * @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 to a list usage request as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable listUsages(String resourceGroupName, String accountName, String filter,
        Context context) {
        return new PagedIterable<>(listUsagesAsync(resourceGroupName, accountName, filter, context));
    }

    /**
     * Retrieves metric definitions for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 to a list metric definitions request along with {@link PagedResponse} on successful
     * completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listMetricDefinitionsSinglePageAsync(String resourceGroupName,
        String accountName) {
        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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(
                context -> service.listMetricDefinitions(this.client.getEndpoint(), this.client.getSubscriptionId(),
                    resourceGroupName, accountName, 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()));
    }

    /**
     * Retrieves metric definitions for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 to a list metric definitions request along with {@link PagedResponse} on successful
     * completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listMetricDefinitionsSinglePageAsync(String resourceGroupName,
        String accountName, 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 (accountName == null) {
            return Mono.error(new IllegalArgumentException("Parameter accountName is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .listMetricDefinitions(this.client.getEndpoint(), this.client.getSubscriptionId(), resourceGroupName,
                accountName, this.client.getApiVersion(), accept, context)
            .map(res -> new PagedResponseBase<>(res.getRequest(), res.getStatusCode(), res.getHeaders(),
                res.getValue().value(), null, null));
    }

    /**
     * Retrieves metric definitions for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 to a list metric definitions request as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedFlux listMetricDefinitionsAsync(String resourceGroupName, String accountName) {
        return new PagedFlux<>(() -> listMetricDefinitionsSinglePageAsync(resourceGroupName, accountName));
    }

    /**
     * Retrieves metric definitions for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 to a list metric definitions request as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux listMetricDefinitionsAsync(String resourceGroupName, String accountName,
        Context context) {
        return new PagedFlux<>(() -> listMetricDefinitionsSinglePageAsync(resourceGroupName, accountName, context));
    }

    /**
     * Retrieves metric definitions for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 to a list metric definitions request as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable listMetricDefinitions(String resourceGroupName, String accountName) {
        return new PagedIterable<>(listMetricDefinitionsAsync(resourceGroupName, accountName));
    }

    /**
     * Retrieves metric definitions for the given database account.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param accountName Cosmos DB database account name.
     * @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 to a list metric definitions request as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable listMetricDefinitions(String resourceGroupName, String accountName,
        Context context) {
        return new PagedIterable<>(listMetricDefinitionsAsync(resourceGroupName, accountName, context));
    }
}




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