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This package contains Microsoft Azure SDK for DesktopVirtualization Management SDK. For documentation on how to use this package, please see https://aka.ms/azsdk/java/mgmt. Package tag package-2024-04.
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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.desktopvirtualization.implementation;

import com.azure.core.annotation.BodyParam;
import com.azure.core.annotation.Delete;
import com.azure.core.annotation.ExpectedResponses;
import com.azure.core.annotation.Get;
import com.azure.core.annotation.HeaderParam;
import com.azure.core.annotation.Headers;
import com.azure.core.annotation.Host;
import com.azure.core.annotation.HostParam;
import com.azure.core.annotation.PathParam;
import com.azure.core.annotation.Post;
import com.azure.core.annotation.QueryParam;
import com.azure.core.annotation.ReturnType;
import com.azure.core.annotation.ServiceInterface;
import com.azure.core.annotation.ServiceMethod;
import com.azure.core.annotation.UnexpectedResponseExceptionType;
import com.azure.core.http.rest.PagedFlux;
import com.azure.core.http.rest.PagedIterable;
import com.azure.core.http.rest.PagedResponse;
import com.azure.core.http.rest.PagedResponseBase;
import com.azure.core.http.rest.Response;
import com.azure.core.http.rest.RestProxy;
import com.azure.core.management.exception.ManagementException;
import com.azure.core.util.Context;
import com.azure.core.util.FluxUtil;
import com.azure.resourcemanager.desktopvirtualization.fluent.UserSessionsClient;
import com.azure.resourcemanager.desktopvirtualization.fluent.models.UserSessionInner;
import com.azure.resourcemanager.desktopvirtualization.models.SendMessage;
import com.azure.resourcemanager.desktopvirtualization.models.UserSessionList;
import reactor.core.publisher.Mono;

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

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

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

    /**
     * The interface defining all the services for DesktopVirtualizationApiClientUserSessions to be used by the proxy
     * service to perform REST calls.
     */
    @Host("{$host}")
    @ServiceInterface(name = "DesktopVirtualizatio")
    public interface UserSessionsService {
        @Headers({ "Content-Type: application/json" })
        @Get("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DesktopVirtualization/hostPools/{hostPoolName}/userSessions")
        @ExpectedResponses({ 200 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> listByHostPool(@HostParam("$host") String endpoint,
            @QueryParam("api-version") String apiVersion, @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName, @PathParam("hostPoolName") String hostPoolName,
            @QueryParam("$filter") String filter, @QueryParam("pageSize") Integer pageSize,
            @QueryParam("isDescending") Boolean isDescending, @QueryParam("initialSkip") Integer initialSkip,
            @HeaderParam("Accept") String accept, Context context);

        @Headers({ "Content-Type: application/json" })
        @Get("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DesktopVirtualization/hostPools/{hostPoolName}/sessionHosts/{sessionHostName}/userSessions/{userSessionId}")
        @ExpectedResponses({ 200 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> get(@HostParam("$host") String endpoint,
            @QueryParam("api-version") String apiVersion, @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName, @PathParam("hostPoolName") String hostPoolName,
            @PathParam("sessionHostName") String sessionHostname, @PathParam("userSessionId") String userSessionId,
            @HeaderParam("Accept") String accept, Context context);

        @Headers({ "Content-Type: application/json" })
        @Delete("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DesktopVirtualization/hostPools/{hostPoolName}/sessionHosts/{sessionHostName}/userSessions/{userSessionId}")
        @ExpectedResponses({ 200, 204 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> delete(@HostParam("$host") String endpoint, @QueryParam("api-version") String apiVersion,
            @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName, @PathParam("hostPoolName") String hostPoolName,
            @PathParam("sessionHostName") String sessionHostname, @PathParam("userSessionId") String userSessionId,
            @QueryParam("force") Boolean force, @HeaderParam("Accept") String accept, Context context);

        @Headers({ "Content-Type: application/json" })
        @Get("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DesktopVirtualization/hostPools/{hostPoolName}/sessionHosts/{sessionHostName}/userSessions")
        @ExpectedResponses({ 200 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> list(@HostParam("$host") String endpoint,
            @QueryParam("api-version") String apiVersion, @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName, @PathParam("hostPoolName") String hostPoolName,
            @PathParam("sessionHostName") String sessionHostname, @QueryParam("pageSize") Integer pageSize,
            @QueryParam("isDescending") Boolean isDescending, @QueryParam("initialSkip") Integer initialSkip,
            @HeaderParam("Accept") String accept, Context context);

        @Headers({ "Content-Type: application/json" })
        @Post("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DesktopVirtualization/hostPools/{hostPoolName}/sessionHosts/{sessionHostName}/userSessions/{userSessionId}/disconnect")
        @ExpectedResponses({ 200 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> disconnect(@HostParam("$host") String endpoint,
            @QueryParam("api-version") String apiVersion, @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName, @PathParam("hostPoolName") String hostPoolName,
            @PathParam("sessionHostName") String sessionHostname, @PathParam("userSessionId") String userSessionId,
            @HeaderParam("Accept") String accept, Context context);

        @Headers({ "Content-Type: application/json" })
        @Post("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DesktopVirtualization/hostPools/{hostPoolName}/sessionHosts/{sessionHostName}/userSessions/{userSessionId}/sendMessage")
        @ExpectedResponses({ 200 })
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono> sendMessage(@HostParam("$host") String endpoint,
            @QueryParam("api-version") String apiVersion, @PathParam("subscriptionId") String subscriptionId,
            @PathParam("resourceGroupName") String resourceGroupName, @PathParam("hostPoolName") String hostPoolName,
            @PathParam("sessionHostName") String sessionHostname, @PathParam("userSessionId") String userSessionId,
            @BodyParam("application/json") SendMessage sendMessage, @HeaderParam("Accept") String accept,
            Context context);

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

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

    /**
     * List userSessions.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param filter OData filter expression. Valid properties for filtering are userprincipalname and sessionstate.
     * @param pageSize Number of items per page.
     * @param isDescending Indicates whether the collection is descending.
     * @param initialSkip Initial number of items to skip.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return userSessionList along with {@link PagedResponse} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listByHostPoolSinglePageAsync(String resourceGroupName,
        String hostPoolName, String filter, Integer pageSize, Boolean isDescending, Integer initialSkip) {
        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 (hostPoolName == null) {
            return Mono.error(new IllegalArgumentException("Parameter hostPoolName is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.listByHostPool(this.client.getEndpoint(), this.client.getApiVersion(),
                this.client.getSubscriptionId(), resourceGroupName, hostPoolName, filter, pageSize, isDescending,
                initialSkip, accept, context))
            .>map(res -> new PagedResponseBase<>(res.getRequest(), res.getStatusCode(),
                res.getHeaders(), res.getValue().value(), res.getValue().nextLink(), null))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * List userSessions.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param filter OData filter expression. Valid properties for filtering are userprincipalname and sessionstate.
     * @param pageSize Number of items per page.
     * @param isDescending Indicates whether the collection is descending.
     * @param initialSkip Initial number of items to skip.
     * @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 userSessionList along with {@link PagedResponse} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listByHostPoolSinglePageAsync(String resourceGroupName,
        String hostPoolName, String filter, Integer pageSize, Boolean isDescending, Integer initialSkip,
        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 (hostPoolName == null) {
            return Mono.error(new IllegalArgumentException("Parameter hostPoolName is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service
            .listByHostPool(this.client.getEndpoint(), this.client.getApiVersion(), this.client.getSubscriptionId(),
                resourceGroupName, hostPoolName, filter, pageSize, isDescending, initialSkip, accept, context)
            .map(res -> new PagedResponseBase<>(res.getRequest(), res.getStatusCode(), res.getHeaders(),
                res.getValue().value(), res.getValue().nextLink(), null));
    }

    /**
     * List userSessions.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param filter OData filter expression. Valid properties for filtering are userprincipalname and sessionstate.
     * @param pageSize Number of items per page.
     * @param isDescending Indicates whether the collection is descending.
     * @param initialSkip Initial number of items to skip.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return userSessionList as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedFlux listByHostPoolAsync(String resourceGroupName, String hostPoolName, String filter,
        Integer pageSize, Boolean isDescending, Integer initialSkip) {
        return new PagedFlux<>(() -> listByHostPoolSinglePageAsync(resourceGroupName, hostPoolName, filter, pageSize,
            isDescending, initialSkip), nextLink -> listByHostPoolNextSinglePageAsync(nextLink));
    }

    /**
     * List userSessions.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return userSessionList as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedFlux listByHostPoolAsync(String resourceGroupName, String hostPoolName) {
        final String filter = null;
        final Integer pageSize = null;
        final Boolean isDescending = null;
        final Integer initialSkip = null;
        return new PagedFlux<>(() -> listByHostPoolSinglePageAsync(resourceGroupName, hostPoolName, filter, pageSize,
            isDescending, initialSkip), nextLink -> listByHostPoolNextSinglePageAsync(nextLink));
    }

    /**
     * List userSessions.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param filter OData filter expression. Valid properties for filtering are userprincipalname and sessionstate.
     * @param pageSize Number of items per page.
     * @param isDescending Indicates whether the collection is descending.
     * @param initialSkip Initial number of items to skip.
     * @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 userSessionList as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux listByHostPoolAsync(String resourceGroupName, String hostPoolName,
        String filter, Integer pageSize, Boolean isDescending, Integer initialSkip, Context context) {
        return new PagedFlux<>(() -> listByHostPoolSinglePageAsync(resourceGroupName, hostPoolName, filter, pageSize,
            isDescending, initialSkip, context), nextLink -> listByHostPoolNextSinglePageAsync(nextLink, context));
    }

    /**
     * List userSessions.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return userSessionList as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable listByHostPool(String resourceGroupName, String hostPoolName) {
        final String filter = null;
        final Integer pageSize = null;
        final Boolean isDescending = null;
        final Integer initialSkip = null;
        return new PagedIterable<>(
            listByHostPoolAsync(resourceGroupName, hostPoolName, filter, pageSize, isDescending, initialSkip));
    }

    /**
     * List userSessions.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param filter OData filter expression. Valid properties for filtering are userprincipalname and sessionstate.
     * @param pageSize Number of items per page.
     * @param isDescending Indicates whether the collection is descending.
     * @param initialSkip Initial number of items to skip.
     * @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 userSessionList as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable listByHostPool(String resourceGroupName, String hostPoolName, String filter,
        Integer pageSize, Boolean isDescending, Integer initialSkip, Context context) {
        return new PagedIterable<>(
            listByHostPoolAsync(resourceGroupName, hostPoolName, filter, pageSize, isDescending, initialSkip, context));
    }

    /**
     * Get a userSession.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws 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 userSession along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono> getWithResponseAsync(String resourceGroupName, String hostPoolName,
        String sessionHostname, String userSessionId) {
        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 (hostPoolName == null) {
            return Mono.error(new IllegalArgumentException("Parameter hostPoolName is required and cannot be null."));
        }
        if (sessionHostname == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter sessionHostname is required and cannot be null."));
        }
        if (userSessionId == null) {
            return Mono.error(new IllegalArgumentException("Parameter userSessionId is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.get(this.client.getEndpoint(), this.client.getApiVersion(),
                this.client.getSubscriptionId(), resourceGroupName, hostPoolName, sessionHostname, userSessionId,
                accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Get a userSession.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @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 userSession along with {@link Response} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> getWithResponseAsync(String resourceGroupName, String hostPoolName,
        String sessionHostname, String userSessionId, 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 (hostPoolName == null) {
            return Mono.error(new IllegalArgumentException("Parameter hostPoolName is required and cannot be null."));
        }
        if (sessionHostname == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter sessionHostname is required and cannot be null."));
        }
        if (userSessionId == null) {
            return Mono.error(new IllegalArgumentException("Parameter userSessionId is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.get(this.client.getEndpoint(), this.client.getApiVersion(), this.client.getSubscriptionId(),
            resourceGroupName, hostPoolName, sessionHostname, userSessionId, accept, context);
    }

    /**
     * Get a userSession.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws 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 userSession on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono getAsync(String resourceGroupName, String hostPoolName, String sessionHostname,
        String userSessionId) {
        return getWithResponseAsync(resourceGroupName, hostPoolName, sessionHostname, userSessionId)
            .flatMap(res -> Mono.justOrEmpty(res.getValue()));
    }

    /**
     * Get a userSession.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @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 userSession along with {@link Response}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response getWithResponse(String resourceGroupName, String hostPoolName,
        String sessionHostname, String userSessionId, Context context) {
        return getWithResponseAsync(resourceGroupName, hostPoolName, sessionHostname, userSessionId, context).block();
    }

    /**
     * Get a userSession.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws 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 userSession.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public UserSessionInner get(String resourceGroupName, String hostPoolName, String sessionHostname,
        String userSessionId) {
        return getWithResponse(resourceGroupName, hostPoolName, sessionHostname, userSessionId, Context.NONE)
            .getValue();
    }

    /**
     * Remove a userSession.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @param force Force flag to login off userSession.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws 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 hostPoolName,
        String sessionHostname, String userSessionId, Boolean force) {
        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 (hostPoolName == null) {
            return Mono.error(new IllegalArgumentException("Parameter hostPoolName is required and cannot be null."));
        }
        if (sessionHostname == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter sessionHostname is required and cannot be null."));
        }
        if (userSessionId == null) {
            return Mono.error(new IllegalArgumentException("Parameter userSessionId is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.delete(this.client.getEndpoint(), this.client.getApiVersion(),
                this.client.getSubscriptionId(), resourceGroupName, hostPoolName, sessionHostname, userSessionId, force,
                accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Remove a userSession.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @param force Force flag to login off userSession.
     * @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 hostPoolName,
        String sessionHostname, String userSessionId, Boolean force, 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 (hostPoolName == null) {
            return Mono.error(new IllegalArgumentException("Parameter hostPoolName is required and cannot be null."));
        }
        if (sessionHostname == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter sessionHostname is required and cannot be null."));
        }
        if (userSessionId == null) {
            return Mono.error(new IllegalArgumentException("Parameter userSessionId is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.delete(this.client.getEndpoint(), this.client.getApiVersion(), this.client.getSubscriptionId(),
            resourceGroupName, hostPoolName, sessionHostname, userSessionId, force, accept, context);
    }

    /**
     * Remove a userSession.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws 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 hostPoolName, String sessionHostname,
        String userSessionId) {
        final Boolean force = null;
        return deleteWithResponseAsync(resourceGroupName, hostPoolName, sessionHostname, userSessionId, force)
            .flatMap(ignored -> Mono.empty());
    }

    /**
     * Remove a userSession.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @param force Force flag to login off userSession.
     * @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}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response deleteWithResponse(String resourceGroupName, String hostPoolName, String sessionHostname,
        String userSessionId, Boolean force, Context context) {
        return deleteWithResponseAsync(resourceGroupName, hostPoolName, sessionHostname, userSessionId, force, context)
            .block();
    }

    /**
     * Remove a userSession.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @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 hostPoolName, String sessionHostname, String userSessionId) {
        final Boolean force = null;
        deleteWithResponse(resourceGroupName, hostPoolName, sessionHostname, userSessionId, force, Context.NONE);
    }

    /**
     * List userSessions.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param pageSize Number of items per page.
     * @param isDescending Indicates whether the collection is descending.
     * @param initialSkip Initial number of items to skip.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return userSessionList along with {@link PagedResponse} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listSinglePageAsync(String resourceGroupName, String hostPoolName,
        String sessionHostname, Integer pageSize, Boolean isDescending, Integer initialSkip) {
        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 (hostPoolName == null) {
            return Mono.error(new IllegalArgumentException("Parameter hostPoolName is required and cannot be null."));
        }
        if (sessionHostname == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter sessionHostname 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(), resourceGroupName, hostPoolName, sessionHostname, pageSize,
                isDescending, initialSkip, accept, context))
            .>map(res -> new PagedResponseBase<>(res.getRequest(), res.getStatusCode(),
                res.getHeaders(), res.getValue().value(), res.getValue().nextLink(), null))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * List userSessions.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param pageSize Number of items per page.
     * @param isDescending Indicates whether the collection is descending.
     * @param initialSkip Initial number of items to skip.
     * @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 userSessionList along with {@link PagedResponse} on successful completion of {@link Mono}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono> listSinglePageAsync(String resourceGroupName, String hostPoolName,
        String sessionHostname, Integer pageSize, Boolean isDescending, Integer initialSkip, 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 (hostPoolName == null) {
            return Mono.error(new IllegalArgumentException("Parameter hostPoolName is required and cannot be null."));
        }
        if (sessionHostname == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter sessionHostname 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(),
                resourceGroupName, hostPoolName, sessionHostname, pageSize, isDescending, initialSkip, accept, context)
            .map(res -> new PagedResponseBase<>(res.getRequest(), res.getStatusCode(), res.getHeaders(),
                res.getValue().value(), res.getValue().nextLink(), null));
    }

    /**
     * List userSessions.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param pageSize Number of items per page.
     * @param isDescending Indicates whether the collection is descending.
     * @param initialSkip Initial number of items to skip.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return userSessionList as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedFlux listAsync(String resourceGroupName, String hostPoolName, String sessionHostname,
        Integer pageSize, Boolean isDescending, Integer initialSkip) {
        return new PagedFlux<>(() -> listSinglePageAsync(resourceGroupName, hostPoolName, sessionHostname, pageSize,
            isDescending, initialSkip), nextLink -> listNextSinglePageAsync(nextLink));
    }

    /**
     * List userSessions.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return userSessionList as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedFlux listAsync(String resourceGroupName, String hostPoolName,
        String sessionHostname) {
        final Integer pageSize = null;
        final Boolean isDescending = null;
        final Integer initialSkip = null;
        return new PagedFlux<>(() -> listSinglePageAsync(resourceGroupName, hostPoolName, sessionHostname, pageSize,
            isDescending, initialSkip), nextLink -> listNextSinglePageAsync(nextLink));
    }

    /**
     * List userSessions.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param pageSize Number of items per page.
     * @param isDescending Indicates whether the collection is descending.
     * @param initialSkip Initial number of items to skip.
     * @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 userSessionList as paginated response with {@link PagedFlux}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    private PagedFlux listAsync(String resourceGroupName, String hostPoolName, String sessionHostname,
        Integer pageSize, Boolean isDescending, Integer initialSkip, Context context) {
        return new PagedFlux<>(() -> listSinglePageAsync(resourceGroupName, hostPoolName, sessionHostname, pageSize,
            isDescending, initialSkip, context), nextLink -> listNextSinglePageAsync(nextLink, context));
    }

    /**
     * List userSessions.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return userSessionList as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable list(String resourceGroupName, String hostPoolName, String sessionHostname) {
        final Integer pageSize = null;
        final Boolean isDescending = null;
        final Integer initialSkip = null;
        return new PagedIterable<>(
            listAsync(resourceGroupName, hostPoolName, sessionHostname, pageSize, isDescending, initialSkip));
    }

    /**
     * List userSessions.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param pageSize Number of items per page.
     * @param isDescending Indicates whether the collection is descending.
     * @param initialSkip Initial number of items to skip.
     * @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 userSessionList as paginated response with {@link PagedIterable}.
     */
    @ServiceMethod(returns = ReturnType.COLLECTION)
    public PagedIterable list(String resourceGroupName, String hostPoolName, String sessionHostname,
        Integer pageSize, Boolean isDescending, Integer initialSkip, Context context) {
        return new PagedIterable<>(
            listAsync(resourceGroupName, hostPoolName, sessionHostname, pageSize, isDescending, initialSkip, context));
    }

    /**
     * Disconnect a userSession.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws 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> disconnectWithResponseAsync(String resourceGroupName, String hostPoolName,
        String sessionHostname, String userSessionId) {
        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 (hostPoolName == null) {
            return Mono.error(new IllegalArgumentException("Parameter hostPoolName is required and cannot be null."));
        }
        if (sessionHostname == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter sessionHostname is required and cannot be null."));
        }
        if (userSessionId == null) {
            return Mono.error(new IllegalArgumentException("Parameter userSessionId is required and cannot be null."));
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.disconnect(this.client.getEndpoint(), this.client.getApiVersion(),
                this.client.getSubscriptionId(), resourceGroupName, hostPoolName, sessionHostname, userSessionId,
                accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Disconnect a userSession.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @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> disconnectWithResponseAsync(String resourceGroupName, String hostPoolName,
        String sessionHostname, String userSessionId, 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 (hostPoolName == null) {
            return Mono.error(new IllegalArgumentException("Parameter hostPoolName is required and cannot be null."));
        }
        if (sessionHostname == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter sessionHostname is required and cannot be null."));
        }
        if (userSessionId == null) {
            return Mono.error(new IllegalArgumentException("Parameter userSessionId is required and cannot be null."));
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.disconnect(this.client.getEndpoint(), this.client.getApiVersion(),
            this.client.getSubscriptionId(), resourceGroupName, hostPoolName, sessionHostname, userSessionId, accept,
            context);
    }

    /**
     * Disconnect a userSession.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws 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 disconnectAsync(String resourceGroupName, String hostPoolName, String sessionHostname,
        String userSessionId) {
        return disconnectWithResponseAsync(resourceGroupName, hostPoolName, sessionHostname, userSessionId)
            .flatMap(ignored -> Mono.empty());
    }

    /**
     * Disconnect a userSession.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @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}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response disconnectWithResponse(String resourceGroupName, String hostPoolName, String sessionHostname,
        String userSessionId, Context context) {
        return disconnectWithResponseAsync(resourceGroupName, hostPoolName, sessionHostname, userSessionId, context)
            .block();
    }

    /**
     * Disconnect a userSession.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @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 disconnect(String resourceGroupName, String hostPoolName, String sessionHostname,
        String userSessionId) {
        disconnectWithResponse(resourceGroupName, hostPoolName, sessionHostname, userSessionId, Context.NONE);
    }

    /**
     * Send a message to a user.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @param sendMessage Object containing message includes title and message body.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws 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> sendMessageWithResponseAsync(String resourceGroupName, String hostPoolName,
        String sessionHostname, String userSessionId, SendMessage sendMessage) {
        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 (hostPoolName == null) {
            return Mono.error(new IllegalArgumentException("Parameter hostPoolName is required and cannot be null."));
        }
        if (sessionHostname == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter sessionHostname is required and cannot be null."));
        }
        if (userSessionId == null) {
            return Mono.error(new IllegalArgumentException("Parameter userSessionId is required and cannot be null."));
        }
        if (sendMessage != null) {
            sendMessage.validate();
        }
        final String accept = "application/json";
        return FluxUtil
            .withContext(context -> service.sendMessage(this.client.getEndpoint(), this.client.getApiVersion(),
                this.client.getSubscriptionId(), resourceGroupName, hostPoolName, sessionHostname, userSessionId,
                sendMessage, accept, context))
            .contextWrite(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext()).readOnly()));
    }

    /**
     * Send a message to a user.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @param sendMessage Object containing message includes title and message body.
     * @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> sendMessageWithResponseAsync(String resourceGroupName, String hostPoolName,
        String sessionHostname, String userSessionId, SendMessage sendMessage, 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 (hostPoolName == null) {
            return Mono.error(new IllegalArgumentException("Parameter hostPoolName is required and cannot be null."));
        }
        if (sessionHostname == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter sessionHostname is required and cannot be null."));
        }
        if (userSessionId == null) {
            return Mono.error(new IllegalArgumentException("Parameter userSessionId is required and cannot be null."));
        }
        if (sendMessage != null) {
            sendMessage.validate();
        }
        final String accept = "application/json";
        context = this.client.mergeContext(context);
        return service.sendMessage(this.client.getEndpoint(), this.client.getApiVersion(),
            this.client.getSubscriptionId(), resourceGroupName, hostPoolName, sessionHostname, userSessionId,
            sendMessage, accept, context);
    }

    /**
     * Send a message to a user.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws 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 sendMessageAsync(String resourceGroupName, String hostPoolName, String sessionHostname,
        String userSessionId) {
        final SendMessage sendMessage = null;
        return sendMessageWithResponseAsync(resourceGroupName, hostPoolName, sessionHostname, userSessionId,
            sendMessage).flatMap(ignored -> Mono.empty());
    }

    /**
     * Send a message to a user.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @param sendMessage Object containing message includes title and message body.
     * @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}.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response sendMessageWithResponse(String resourceGroupName, String hostPoolName, String sessionHostname,
        String userSessionId, SendMessage sendMessage, Context context) {
        return sendMessageWithResponseAsync(resourceGroupName, hostPoolName, sessionHostname, userSessionId,
            sendMessage, context).block();
    }

    /**
     * Send a message to a user.
     * 
     * @param resourceGroupName The name of the resource group. The name is case insensitive.
     * @param hostPoolName The name of the host pool within the specified resource group.
     * @param sessionHostname The name of the session host within the specified host pool.
     * @param userSessionId The name of the user session within the specified session host.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @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 sendMessage(String resourceGroupName, String hostPoolName, String sessionHostname,
        String userSessionId) {
        final SendMessage sendMessage = null;
        sendMessageWithResponse(resourceGroupName, hostPoolName, sessionHostname, userSessionId, sendMessage,
            Context.NONE);
    }

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

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

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

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