VirtualMachineExtensionsClientImpl.java

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

package com.azure.resourcemanager.compute.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.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.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.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.logging.ClientLogger;
import com.azure.core.util.polling.PollerFlux;
import com.azure.core.util.polling.SyncPoller;
import com.azure.resourcemanager.compute.fluent.VirtualMachineExtensionsClient;
import com.azure.resourcemanager.compute.fluent.models.VirtualMachineExtensionInner;
import com.azure.resourcemanager.compute.fluent.models.VirtualMachineExtensionsListResultInner;
import com.azure.resourcemanager.compute.models.VirtualMachineExtensionUpdate;
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 VirtualMachineExtensionsClient. */
public final class VirtualMachineExtensionsClientImpl implements VirtualMachineExtensionsClient {
    private final ClientLogger logger = new ClientLogger(VirtualMachineExtensionsClientImpl.class);

    /** The proxy service used to perform REST calls. */
    private final VirtualMachineExtensionsService service;

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

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

    /**
     * The interface defining all the services for ComputeManagementClientVirtualMachineExtensions to be used by the
     * proxy service to perform REST calls.
     */
    @Host("{$host}")
    @ServiceInterface(name = "ComputeManagementCli")
    private interface VirtualMachineExtensionsService {
        @Headers({"Accept: application/json", "Content-Type: application/json"})
        @Put(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute"
                + "/virtualMachines/{vmName}/extensions/{vmExtensionName}")
        @ExpectedResponses({200, 201})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<Flux<ByteBuffer>>> createOrUpdate(
            @HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("vmName") String vmName,
            @PathParam("vmExtensionName") String vmExtensionName,
            @QueryParam("api-version") String apiVersion,
            @PathParam("subscriptionId") String subscriptionId,
            @BodyParam("application/json") VirtualMachineExtensionInner extensionParameters,
            Context context);

        @Headers({"Accept: application/json", "Content-Type: application/json"})
        @Patch(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute"
                + "/virtualMachines/{vmName}/extensions/{vmExtensionName}")
        @ExpectedResponses({200})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<Flux<ByteBuffer>>> update(
            @HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("vmName") String vmName,
            @PathParam("vmExtensionName") String vmExtensionName,
            @QueryParam("api-version") String apiVersion,
            @PathParam("subscriptionId") String subscriptionId,
            @BodyParam("application/json") VirtualMachineExtensionUpdate extensionParameters,
            Context context);

        @Headers({"Accept: application/json;q=0.9", "Content-Type: application/json"})
        @Delete(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute"
                + "/virtualMachines/{vmName}/extensions/{vmExtensionName}")
        @ExpectedResponses({200, 202, 204})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<Flux<ByteBuffer>>> delete(
            @HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("vmName") String vmName,
            @PathParam("vmExtensionName") String vmExtensionName,
            @QueryParam("api-version") String apiVersion,
            @PathParam("subscriptionId") String subscriptionId,
            Context context);

        @Headers({"Accept: application/json", "Content-Type: application/json"})
        @Get(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute"
                + "/virtualMachines/{vmName}/extensions/{vmExtensionName}")
        @ExpectedResponses({200})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<VirtualMachineExtensionInner>> get(
            @HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("vmName") String vmName,
            @PathParam("vmExtensionName") String vmExtensionName,
            @QueryParam("$expand") String expand,
            @QueryParam("api-version") String apiVersion,
            @PathParam("subscriptionId") String subscriptionId,
            Context context);

        @Headers({"Accept: application/json", "Content-Type: application/json"})
        @Get(
            "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute"
                + "/virtualMachines/{vmName}/extensions")
        @ExpectedResponses({200})
        @UnexpectedResponseExceptionType(ManagementException.class)
        Mono<Response<VirtualMachineExtensionsListResultInner>> list(
            @HostParam("$host") String endpoint,
            @PathParam("resourceGroupName") String resourceGroupName,
            @PathParam("vmName") String vmName,
            @QueryParam("$expand") String expand,
            @QueryParam("api-version") String apiVersion,
            @PathParam("subscriptionId") String subscriptionId,
            Context context);
    }

    /**
     * The operation to create or update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be created or updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Response<Flux<ByteBuffer>>> createOrUpdateWithResponseAsync(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionInner extensionParameters) {
        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 (vmName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmName is required and cannot be null."));
        }
        if (vmExtensionName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter vmExtensionName 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 (extensionParameters == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter extensionParameters is required and cannot be null."));
        } else {
            extensionParameters.validate();
        }
        final String apiVersion = "2019-12-01";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .createOrUpdate(
                            this.client.getEndpoint(),
                            resourceGroupName,
                            vmName,
                            vmExtensionName,
                            apiVersion,
                            this.client.getSubscriptionId(),
                            extensionParameters,
                            context))
            .subscriberContext(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext())));
    }

    /**
     * The operation to create or update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be created or updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @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 describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<Flux<ByteBuffer>>> createOrUpdateWithResponseAsync(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionInner extensionParameters,
        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 (vmName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmName is required and cannot be null."));
        }
        if (vmExtensionName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter vmExtensionName 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 (extensionParameters == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter extensionParameters is required and cannot be null."));
        } else {
            extensionParameters.validate();
        }
        final String apiVersion = "2019-12-01";
        context = this.client.mergeContext(context);
        return service
            .createOrUpdate(
                this.client.getEndpoint(),
                resourceGroupName,
                vmName,
                vmExtensionName,
                apiVersion,
                this.client.getSubscriptionId(),
                extensionParameters,
                context);
    }

    /**
     * The operation to create or update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be created or updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public PollerFlux<PollResult<VirtualMachineExtensionInner>, VirtualMachineExtensionInner> beginCreateOrUpdateAsync(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionInner extensionParameters) {
        Mono<Response<Flux<ByteBuffer>>> mono =
            createOrUpdateWithResponseAsync(resourceGroupName, vmName, vmExtensionName, extensionParameters);
        return this
            .client
            .<VirtualMachineExtensionInner, VirtualMachineExtensionInner>getLroResult(
                mono,
                this.client.getHttpPipeline(),
                VirtualMachineExtensionInner.class,
                VirtualMachineExtensionInner.class,
                Context.NONE);
    }

    /**
     * The operation to create or update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be created or updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @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 describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private PollerFlux<PollResult<VirtualMachineExtensionInner>, VirtualMachineExtensionInner> beginCreateOrUpdateAsync(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionInner extensionParameters,
        Context context) {
        context = this.client.mergeContext(context);
        Mono<Response<Flux<ByteBuffer>>> mono =
            createOrUpdateWithResponseAsync(resourceGroupName, vmName, vmExtensionName, extensionParameters, context);
        return this
            .client
            .<VirtualMachineExtensionInner, VirtualMachineExtensionInner>getLroResult(
                mono,
                this.client.getHttpPipeline(),
                VirtualMachineExtensionInner.class,
                VirtualMachineExtensionInner.class,
                context);
    }

    /**
     * The operation to create or update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be created or updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public SyncPoller<PollResult<VirtualMachineExtensionInner>, VirtualMachineExtensionInner> beginCreateOrUpdate(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionInner extensionParameters) {
        return beginCreateOrUpdateAsync(resourceGroupName, vmName, vmExtensionName, extensionParameters)
            .getSyncPoller();
    }

    /**
     * The operation to create or update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be created or updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @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 describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public SyncPoller<PollResult<VirtualMachineExtensionInner>, VirtualMachineExtensionInner> beginCreateOrUpdate(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionInner extensionParameters,
        Context context) {
        return beginCreateOrUpdateAsync(resourceGroupName, vmName, vmExtensionName, extensionParameters, context)
            .getSyncPoller();
    }

    /**
     * The operation to create or update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be created or updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<VirtualMachineExtensionInner> createOrUpdateAsync(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionInner extensionParameters) {
        return beginCreateOrUpdateAsync(resourceGroupName, vmName, vmExtensionName, extensionParameters)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * The operation to create or update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be created or updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @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 describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<VirtualMachineExtensionInner> createOrUpdateAsync(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionInner extensionParameters,
        Context context) {
        return beginCreateOrUpdateAsync(resourceGroupName, vmName, vmExtensionName, extensionParameters, context)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * The operation to create or update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be created or updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public VirtualMachineExtensionInner createOrUpdate(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionInner extensionParameters) {
        return createOrUpdateAsync(resourceGroupName, vmName, vmExtensionName, extensionParameters).block();
    }

    /**
     * The operation to create or update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be created or updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @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 describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public VirtualMachineExtensionInner createOrUpdate(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionInner extensionParameters,
        Context context) {
        return createOrUpdateAsync(resourceGroupName, vmName, vmExtensionName, extensionParameters, context).block();
    }

    /**
     * The operation to update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Response<Flux<ByteBuffer>>> updateWithResponseAsync(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionUpdate extensionParameters) {
        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 (vmName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmName is required and cannot be null."));
        }
        if (vmExtensionName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter vmExtensionName 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 (extensionParameters == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter extensionParameters is required and cannot be null."));
        } else {
            extensionParameters.validate();
        }
        final String apiVersion = "2019-12-01";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .update(
                            this.client.getEndpoint(),
                            resourceGroupName,
                            vmName,
                            vmExtensionName,
                            apiVersion,
                            this.client.getSubscriptionId(),
                            extensionParameters,
                            context))
            .subscriberContext(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext())));
    }

    /**
     * The operation to update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @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 describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<Flux<ByteBuffer>>> updateWithResponseAsync(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionUpdate extensionParameters,
        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 (vmName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmName is required and cannot be null."));
        }
        if (vmExtensionName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter vmExtensionName 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 (extensionParameters == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter extensionParameters is required and cannot be null."));
        } else {
            extensionParameters.validate();
        }
        final String apiVersion = "2019-12-01";
        context = this.client.mergeContext(context);
        return service
            .update(
                this.client.getEndpoint(),
                resourceGroupName,
                vmName,
                vmExtensionName,
                apiVersion,
                this.client.getSubscriptionId(),
                extensionParameters,
                context);
    }

    /**
     * The operation to update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public PollerFlux<PollResult<VirtualMachineExtensionInner>, VirtualMachineExtensionInner> beginUpdateAsync(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionUpdate extensionParameters) {
        Mono<Response<Flux<ByteBuffer>>> mono =
            updateWithResponseAsync(resourceGroupName, vmName, vmExtensionName, extensionParameters);
        return this
            .client
            .<VirtualMachineExtensionInner, VirtualMachineExtensionInner>getLroResult(
                mono,
                this.client.getHttpPipeline(),
                VirtualMachineExtensionInner.class,
                VirtualMachineExtensionInner.class,
                Context.NONE);
    }

    /**
     * The operation to update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @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 describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private PollerFlux<PollResult<VirtualMachineExtensionInner>, VirtualMachineExtensionInner> beginUpdateAsync(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionUpdate extensionParameters,
        Context context) {
        context = this.client.mergeContext(context);
        Mono<Response<Flux<ByteBuffer>>> mono =
            updateWithResponseAsync(resourceGroupName, vmName, vmExtensionName, extensionParameters, context);
        return this
            .client
            .<VirtualMachineExtensionInner, VirtualMachineExtensionInner>getLroResult(
                mono,
                this.client.getHttpPipeline(),
                VirtualMachineExtensionInner.class,
                VirtualMachineExtensionInner.class,
                context);
    }

    /**
     * The operation to update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public SyncPoller<PollResult<VirtualMachineExtensionInner>, VirtualMachineExtensionInner> beginUpdate(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionUpdate extensionParameters) {
        return beginUpdateAsync(resourceGroupName, vmName, vmExtensionName, extensionParameters).getSyncPoller();
    }

    /**
     * The operation to update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @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 describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public SyncPoller<PollResult<VirtualMachineExtensionInner>, VirtualMachineExtensionInner> beginUpdate(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionUpdate extensionParameters,
        Context context) {
        return beginUpdateAsync(resourceGroupName, vmName, vmExtensionName, extensionParameters, context)
            .getSyncPoller();
    }

    /**
     * The operation to update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<VirtualMachineExtensionInner> updateAsync(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionUpdate extensionParameters) {
        return beginUpdateAsync(resourceGroupName, vmName, vmExtensionName, extensionParameters)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * The operation to update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @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 describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<VirtualMachineExtensionInner> updateAsync(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionUpdate extensionParameters,
        Context context) {
        return beginUpdateAsync(resourceGroupName, vmName, vmExtensionName, extensionParameters, context)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * The operation to update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public VirtualMachineExtensionInner update(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionUpdate extensionParameters) {
        return updateAsync(resourceGroupName, vmName, vmExtensionName, extensionParameters).block();
    }

    /**
     * The operation to update the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be updated.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param extensionParameters Describes a Virtual Machine Extension.
     * @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 describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public VirtualMachineExtensionInner update(
        String resourceGroupName,
        String vmName,
        String vmExtensionName,
        VirtualMachineExtensionUpdate extensionParameters,
        Context context) {
        return updateAsync(resourceGroupName, vmName, vmExtensionName, extensionParameters, context).block();
    }

    /**
     * The operation to delete the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be deleted.
     * @param vmExtensionName The name of the virtual machine extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws 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 completion.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Response<Flux<ByteBuffer>>> deleteWithResponseAsync(
        String resourceGroupName, String vmName, String vmExtensionName) {
        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 (vmName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmName is required and cannot be null."));
        }
        if (vmExtensionName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter vmExtensionName 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 apiVersion = "2019-12-01";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .delete(
                            this.client.getEndpoint(),
                            resourceGroupName,
                            vmName,
                            vmExtensionName,
                            apiVersion,
                            this.client.getSubscriptionId(),
                            context))
            .subscriberContext(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext())));
    }

    /**
     * The operation to delete the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be deleted.
     * @param vmExtensionName The name of the virtual machine extension.
     * @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 completion.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<Flux<ByteBuffer>>> deleteWithResponseAsync(
        String resourceGroupName, String vmName, String vmExtensionName, 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 (vmName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmName is required and cannot be null."));
        }
        if (vmExtensionName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter vmExtensionName 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 apiVersion = "2019-12-01";
        context = this.client.mergeContext(context);
        return service
            .delete(
                this.client.getEndpoint(),
                resourceGroupName,
                vmName,
                vmExtensionName,
                apiVersion,
                this.client.getSubscriptionId(),
                context);
    }

    /**
     * The operation to delete the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be deleted.
     * @param vmExtensionName The name of the virtual machine extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws 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 completion.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public PollerFlux<PollResult<Void>, Void> beginDeleteAsync(
        String resourceGroupName, String vmName, String vmExtensionName) {
        Mono<Response<Flux<ByteBuffer>>> mono = deleteWithResponseAsync(resourceGroupName, vmName, vmExtensionName);
        return this
            .client
            .<Void, Void>getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class, Context.NONE);
    }

    /**
     * The operation to delete the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be deleted.
     * @param vmExtensionName The name of the virtual machine extension.
     * @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 completion.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private PollerFlux<PollResult<Void>, Void> beginDeleteAsync(
        String resourceGroupName, String vmName, String vmExtensionName, Context context) {
        context = this.client.mergeContext(context);
        Mono<Response<Flux<ByteBuffer>>> mono =
            deleteWithResponseAsync(resourceGroupName, vmName, vmExtensionName, context);
        return this
            .client
            .<Void, Void>getLroResult(mono, this.client.getHttpPipeline(), Void.class, Void.class, context);
    }

    /**
     * The operation to delete the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be deleted.
     * @param vmExtensionName The name of the virtual machine extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws 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 completion.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public SyncPoller<PollResult<Void>, Void> beginDelete(
        String resourceGroupName, String vmName, String vmExtensionName) {
        return beginDeleteAsync(resourceGroupName, vmName, vmExtensionName).getSyncPoller();
    }

    /**
     * The operation to delete the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be deleted.
     * @param vmExtensionName The name of the virtual machine extension.
     * @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 completion.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public SyncPoller<PollResult<Void>, Void> beginDelete(
        String resourceGroupName, String vmName, String vmExtensionName, Context context) {
        return beginDeleteAsync(resourceGroupName, vmName, vmExtensionName, context).getSyncPoller();
    }

    /**
     * The operation to delete the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be deleted.
     * @param vmExtensionName The name of the virtual machine extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws 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 completion.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Void> deleteAsync(String resourceGroupName, String vmName, String vmExtensionName) {
        return beginDeleteAsync(resourceGroupName, vmName, vmExtensionName)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * The operation to delete the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be deleted.
     * @param vmExtensionName The name of the virtual machine extension.
     * @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 completion.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Void> deleteAsync(String resourceGroupName, String vmName, String vmExtensionName, Context context) {
        return beginDeleteAsync(resourceGroupName, vmName, vmExtensionName, context)
            .last()
            .flatMap(this.client::getLroFinalResultOrError);
    }

    /**
     * The operation to delete the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be deleted.
     * @param vmExtensionName The name of the virtual machine extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @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 vmName, String vmExtensionName) {
        deleteAsync(resourceGroupName, vmName, vmExtensionName).block();
    }

    /**
     * The operation to delete the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine where the extension should be deleted.
     * @param vmExtensionName The name of the virtual machine extension.
     * @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 vmName, String vmExtensionName, Context context) {
        deleteAsync(resourceGroupName, vmName, vmExtensionName, context).block();
    }

    /**
     * The operation to get the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine containing the extension.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param expand The expand expression to apply on the 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 describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Response<VirtualMachineExtensionInner>> getWithResponseAsync(
        String resourceGroupName, String vmName, String vmExtensionName, String expand) {
        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 (vmName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmName is required and cannot be null."));
        }
        if (vmExtensionName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter vmExtensionName 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 apiVersion = "2019-12-01";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .get(
                            this.client.getEndpoint(),
                            resourceGroupName,
                            vmName,
                            vmExtensionName,
                            expand,
                            apiVersion,
                            this.client.getSubscriptionId(),
                            context))
            .subscriberContext(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext())));
    }

    /**
     * The operation to get the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine containing the extension.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param expand The expand expression to apply on the operation.
     * @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 describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<VirtualMachineExtensionInner>> getWithResponseAsync(
        String resourceGroupName, String vmName, String vmExtensionName, String expand, 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 (vmName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmName is required and cannot be null."));
        }
        if (vmExtensionName == null) {
            return Mono
                .error(new IllegalArgumentException("Parameter vmExtensionName 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 apiVersion = "2019-12-01";
        context = this.client.mergeContext(context);
        return service
            .get(
                this.client.getEndpoint(),
                resourceGroupName,
                vmName,
                vmExtensionName,
                expand,
                apiVersion,
                this.client.getSubscriptionId(),
                context);
    }

    /**
     * The operation to get the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine containing the extension.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param expand The expand expression to apply on the 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 describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<VirtualMachineExtensionInner> getAsync(
        String resourceGroupName, String vmName, String vmExtensionName, String expand) {
        return getWithResponseAsync(resourceGroupName, vmName, vmExtensionName, expand)
            .flatMap(
                (Response<VirtualMachineExtensionInner> res) -> {
                    if (res.getValue() != null) {
                        return Mono.just(res.getValue());
                    } else {
                        return Mono.empty();
                    }
                });
    }

    /**
     * The operation to get the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine containing the extension.
     * @param vmExtensionName The name of the virtual machine extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<VirtualMachineExtensionInner> getAsync(
        String resourceGroupName, String vmName, String vmExtensionName) {
        final String expand = null;
        return getWithResponseAsync(resourceGroupName, vmName, vmExtensionName, expand)
            .flatMap(
                (Response<VirtualMachineExtensionInner> res) -> {
                    if (res.getValue() != null) {
                        return Mono.just(res.getValue());
                    } else {
                        return Mono.empty();
                    }
                });
    }

    /**
     * The operation to get the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine containing the extension.
     * @param vmExtensionName The name of the virtual machine extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws ManagementException thrown if the request is rejected by server.
     * @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent.
     * @return describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public VirtualMachineExtensionInner get(String resourceGroupName, String vmName, String vmExtensionName) {
        final String expand = null;
        return getAsync(resourceGroupName, vmName, vmExtensionName, expand).block();
    }

    /**
     * The operation to get the extension.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine containing the extension.
     * @param vmExtensionName The name of the virtual machine extension.
     * @param expand The expand expression to apply on the operation.
     * @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 describes a Virtual Machine Extension.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response<VirtualMachineExtensionInner> getWithResponse(
        String resourceGroupName, String vmName, String vmExtensionName, String expand, Context context) {
        return getWithResponseAsync(resourceGroupName, vmName, vmExtensionName, expand, context).block();
    }

    /**
     * The operation to get all extensions of a Virtual Machine.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine containing the extension.
     * @param expand The expand expression to apply on the 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 Extension operation response.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<Response<VirtualMachineExtensionsListResultInner>> listWithResponseAsync(
        String resourceGroupName, String vmName, String expand) {
        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 (vmName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmName 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 apiVersion = "2019-12-01";
        return FluxUtil
            .withContext(
                context ->
                    service
                        .list(
                            this.client.getEndpoint(),
                            resourceGroupName,
                            vmName,
                            expand,
                            apiVersion,
                            this.client.getSubscriptionId(),
                            context))
            .subscriberContext(context -> context.putAll(FluxUtil.toReactorContext(this.client.getContext())));
    }

    /**
     * The operation to get all extensions of a Virtual Machine.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine containing the extension.
     * @param expand The expand expression to apply on the operation.
     * @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 Extension operation response.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    private Mono<Response<VirtualMachineExtensionsListResultInner>> listWithResponseAsync(
        String resourceGroupName, String vmName, String expand, 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 (vmName == null) {
            return Mono.error(new IllegalArgumentException("Parameter vmName 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 apiVersion = "2019-12-01";
        context = this.client.mergeContext(context);
        return service
            .list(
                this.client.getEndpoint(),
                resourceGroupName,
                vmName,
                expand,
                apiVersion,
                this.client.getSubscriptionId(),
                context);
    }

    /**
     * The operation to get all extensions of a Virtual Machine.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine containing the extension.
     * @param expand The expand expression to apply on the 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 Extension operation response.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<VirtualMachineExtensionsListResultInner> listAsync(
        String resourceGroupName, String vmName, String expand) {
        return listWithResponseAsync(resourceGroupName, vmName, expand)
            .flatMap(
                (Response<VirtualMachineExtensionsListResultInner> res) -> {
                    if (res.getValue() != null) {
                        return Mono.just(res.getValue());
                    } else {
                        return Mono.empty();
                    }
                });
    }

    /**
     * The operation to get all extensions of a Virtual Machine.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine containing the extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws 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 Extension operation response.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Mono<VirtualMachineExtensionsListResultInner> listAsync(String resourceGroupName, String vmName) {
        final String expand = null;
        return listWithResponseAsync(resourceGroupName, vmName, expand)
            .flatMap(
                (Response<VirtualMachineExtensionsListResultInner> res) -> {
                    if (res.getValue() != null) {
                        return Mono.just(res.getValue());
                    } else {
                        return Mono.empty();
                    }
                });
    }

    /**
     * The operation to get all extensions of a Virtual Machine.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine containing the extension.
     * @throws IllegalArgumentException thrown if parameters fail the validation.
     * @throws 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 Extension operation response.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public VirtualMachineExtensionsListResultInner list(String resourceGroupName, String vmName) {
        final String expand = null;
        return listAsync(resourceGroupName, vmName, expand).block();
    }

    /**
     * The operation to get all extensions of a Virtual Machine.
     *
     * @param resourceGroupName The name of the resource group.
     * @param vmName The name of the virtual machine containing the extension.
     * @param expand The expand expression to apply on the operation.
     * @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 Extension operation response.
     */
    @ServiceMethod(returns = ReturnType.SINGLE)
    public Response<VirtualMachineExtensionsListResultInner> listWithResponse(
        String resourceGroupName, String vmName, String expand, Context context) {
        return listWithResponseAsync(resourceGroupName, vmName, expand, context).block();
    }
}