diskpools.go

package storagepool

// Copyright (c) Microsoft and contributors.  All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Code generated by Microsoft (R) AutoRest Code Generator.
// Changes may cause incorrect behavior and will be lost if the code is regenerated.

import (
	"context"
	"github.com/Azure/go-autorest/autorest"
	"github.com/Azure/go-autorest/autorest/azure"
	"github.com/Azure/go-autorest/autorest/validation"
	"github.com/Azure/go-autorest/tracing"
	"net/http"
)

// DiskPoolsClient is the client for the DiskPools methods of the Storagepool service.
type DiskPoolsClient struct {
	BaseClient
}

// NewDiskPoolsClient creates an instance of the DiskPoolsClient client.
func NewDiskPoolsClient(subscriptionID string) DiskPoolsClient {
	return NewDiskPoolsClientWithBaseURI(DefaultBaseURI, subscriptionID)
}

// NewDiskPoolsClientWithBaseURI creates an instance of the DiskPoolsClient client using a custom endpoint.  Use this
// when interacting with an Azure cloud that uses a non-standard base URI (sovereign clouds, Azure stack).
func NewDiskPoolsClientWithBaseURI(baseURI string, subscriptionID string) DiskPoolsClient {
	return DiskPoolsClient{NewWithBaseURI(baseURI, subscriptionID)}
}

// CreateOrUpdate create a new Disk Pool.
// Parameters:
// resourceGroupName - the name of the resource group. The name is case insensitive.
// diskPoolName - the name of the Disk Pool.
// diskPoolPayload - request payload for Disk Pool operations.
func (client DiskPoolsClient) CreateOrUpdate(ctx context.Context, resourceGroupName string, diskPoolName string, diskPoolPayload DiskPool) (result DiskPoolsCreateOrUpdateFuture, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DiskPoolsClient.CreateOrUpdate")
		defer func() {
			sc := -1
			if result.Response() != nil {
				sc = result.Response().StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: client.SubscriptionID,
			Constraints: []validation.Constraint{{Target: "client.SubscriptionID", Name: validation.MinLength, Rule: 1, Chain: nil}}},
		{TargetValue: resourceGroupName,
			Constraints: []validation.Constraint{{Target: "resourceGroupName", Name: validation.MaxLength, Rule: 90, Chain: nil},
				{Target: "resourceGroupName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "resourceGroupName", Name: validation.Pattern, Rule: `^[-\w\._]*[0-9A-Za-z]$`, Chain: nil}}},
		{TargetValue: diskPoolName,
			Constraints: []validation.Constraint{{Target: "diskPoolName", Name: validation.MaxLength, Rule: 90, Chain: nil},
				{Target: "diskPoolName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "diskPoolName", Name: validation.Pattern, Rule: `^[-\w\._]+$`, Chain: nil}}},
		{TargetValue: diskPoolPayload,
			Constraints: []validation.Constraint{{Target: "diskPoolPayload.DiskPoolProperties", Name: validation.Null, Rule: false,
				Chain: []validation.Constraint{{Target: "diskPoolPayload.DiskPoolProperties.AvailabilityZones", Name: validation.Null, Rule: true, Chain: nil},
					{Target: "diskPoolPayload.DiskPoolProperties.SubnetID", Name: validation.Null, Rule: true, Chain: nil},
				}},
				{Target: "diskPoolPayload.Sku", Name: validation.Null, Rule: false,
					Chain: []validation.Constraint{{Target: "diskPoolPayload.Sku.Name", Name: validation.Null, Rule: true, Chain: nil}}}}}}); err != nil {
		return result, validation.NewError("storagepool.DiskPoolsClient", "CreateOrUpdate", err.Error())
	}

	req, err := client.CreateOrUpdatePreparer(ctx, resourceGroupName, diskPoolName, diskPoolPayload)
	if err != nil {
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "CreateOrUpdate", nil, "Failure preparing request")
		return
	}

	result, err = client.CreateOrUpdateSender(req)
	if err != nil {
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "CreateOrUpdate", result.Response(), "Failure sending request")
		return
	}

	return
}

// CreateOrUpdatePreparer prepares the CreateOrUpdate request.
func (client DiskPoolsClient) CreateOrUpdatePreparer(ctx context.Context, resourceGroupName string, diskPoolName string, diskPoolPayload DiskPool) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"diskPoolName":      autorest.Encode("path", diskPoolName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2020-03-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	diskPoolPayload.SystemData = nil
	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPut(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.StoragePool/diskPools/{diskPoolName}", pathParameters),
		autorest.WithJSON(diskPoolPayload),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// CreateOrUpdateSender sends the CreateOrUpdate request. The method will close the
// http.Response Body if it receives an error.
func (client DiskPoolsClient) CreateOrUpdateSender(req *http.Request) (future DiskPoolsCreateOrUpdateFuture, err error) {
	var resp *http.Response
	resp, err = client.Send(req, azure.DoRetryWithRegistration(client.Client))
	if err != nil {
		return
	}
	future.Future, err = azure.NewFutureFromResponse(resp)
	return
}

// CreateOrUpdateResponder handles the response to the CreateOrUpdate request. The method always
// closes the http.Response Body.
func (client DiskPoolsClient) CreateOrUpdateResponder(resp *http.Response) (result DiskPool, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK, http.StatusAccepted),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// Delete delete a Disk Pool.
// Parameters:
// resourceGroupName - the name of the resource group. The name is case insensitive.
// diskPoolName - the name of the Disk Pool.
func (client DiskPoolsClient) Delete(ctx context.Context, resourceGroupName string, diskPoolName string) (result DiskPoolsDeleteFuture, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DiskPoolsClient.Delete")
		defer func() {
			sc := -1
			if result.Response() != nil {
				sc = result.Response().StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: client.SubscriptionID,
			Constraints: []validation.Constraint{{Target: "client.SubscriptionID", Name: validation.MinLength, Rule: 1, Chain: nil}}},
		{TargetValue: resourceGroupName,
			Constraints: []validation.Constraint{{Target: "resourceGroupName", Name: validation.MaxLength, Rule: 90, Chain: nil},
				{Target: "resourceGroupName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "resourceGroupName", Name: validation.Pattern, Rule: `^[-\w\._]*[0-9A-Za-z]$`, Chain: nil}}},
		{TargetValue: diskPoolName,
			Constraints: []validation.Constraint{{Target: "diskPoolName", Name: validation.MaxLength, Rule: 90, Chain: nil},
				{Target: "diskPoolName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "diskPoolName", Name: validation.Pattern, Rule: `^[-\w\._]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("storagepool.DiskPoolsClient", "Delete", err.Error())
	}

	req, err := client.DeletePreparer(ctx, resourceGroupName, diskPoolName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "Delete", nil, "Failure preparing request")
		return
	}

	result, err = client.DeleteSender(req)
	if err != nil {
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "Delete", result.Response(), "Failure sending request")
		return
	}

	return
}

// DeletePreparer prepares the Delete request.
func (client DiskPoolsClient) DeletePreparer(ctx context.Context, resourceGroupName string, diskPoolName string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"diskPoolName":      autorest.Encode("path", diskPoolName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2020-03-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsDelete(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.StoragePool/diskPools/{diskPoolName}", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// DeleteSender sends the Delete request. The method will close the
// http.Response Body if it receives an error.
func (client DiskPoolsClient) DeleteSender(req *http.Request) (future DiskPoolsDeleteFuture, err error) {
	var resp *http.Response
	resp, err = client.Send(req, azure.DoRetryWithRegistration(client.Client))
	if err != nil {
		return
	}
	future.Future, err = azure.NewFutureFromResponse(resp)
	return
}

// DeleteResponder handles the response to the Delete request. The method always
// closes the http.Response Body.
func (client DiskPoolsClient) DeleteResponder(resp *http.Response) (result autorest.Response, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK, http.StatusAccepted, http.StatusNoContent),
		autorest.ByClosing())
	result.Response = resp
	return
}

// Get get a Disk Pool.
// Parameters:
// resourceGroupName - the name of the resource group. The name is case insensitive.
// diskPoolName - the name of the Disk Pool.
func (client DiskPoolsClient) Get(ctx context.Context, resourceGroupName string, diskPoolName string) (result DiskPool, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DiskPoolsClient.Get")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: client.SubscriptionID,
			Constraints: []validation.Constraint{{Target: "client.SubscriptionID", Name: validation.MinLength, Rule: 1, Chain: nil}}},
		{TargetValue: resourceGroupName,
			Constraints: []validation.Constraint{{Target: "resourceGroupName", Name: validation.MaxLength, Rule: 90, Chain: nil},
				{Target: "resourceGroupName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "resourceGroupName", Name: validation.Pattern, Rule: `^[-\w\._]*[0-9A-Za-z]$`, Chain: nil}}},
		{TargetValue: diskPoolName,
			Constraints: []validation.Constraint{{Target: "diskPoolName", Name: validation.MaxLength, Rule: 90, Chain: nil},
				{Target: "diskPoolName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "diskPoolName", Name: validation.Pattern, Rule: `^[-\w\._]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("storagepool.DiskPoolsClient", "Get", err.Error())
	}

	req, err := client.GetPreparer(ctx, resourceGroupName, diskPoolName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "Get", nil, "Failure preparing request")
		return
	}

	resp, err := client.GetSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "Get", resp, "Failure sending request")
		return
	}

	result, err = client.GetResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "Get", resp, "Failure responding to request")
		return
	}

	return
}

// GetPreparer prepares the Get request.
func (client DiskPoolsClient) GetPreparer(ctx context.Context, resourceGroupName string, diskPoolName string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"diskPoolName":      autorest.Encode("path", diskPoolName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2020-03-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsGet(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.StoragePool/diskPools/{diskPoolName}", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// GetSender sends the Get request. The method will close the
// http.Response Body if it receives an error.
func (client DiskPoolsClient) GetSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// GetResponder handles the response to the Get request. The method always
// closes the http.Response Body.
func (client DiskPoolsClient) GetResponder(resp *http.Response) (result DiskPool, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// ListByResourceGroup gets a list of DiskPools.
// Parameters:
// resourceGroupName - the name of the resource group. The name is case insensitive.
func (client DiskPoolsClient) ListByResourceGroup(ctx context.Context, resourceGroupName string) (result DiskPoolListResultPage, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DiskPoolsClient.ListByResourceGroup")
		defer func() {
			sc := -1
			if result.dplr.Response.Response != nil {
				sc = result.dplr.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: client.SubscriptionID,
			Constraints: []validation.Constraint{{Target: "client.SubscriptionID", Name: validation.MinLength, Rule: 1, Chain: nil}}},
		{TargetValue: resourceGroupName,
			Constraints: []validation.Constraint{{Target: "resourceGroupName", Name: validation.MaxLength, Rule: 90, Chain: nil},
				{Target: "resourceGroupName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "resourceGroupName", Name: validation.Pattern, Rule: `^[-\w\._]*[0-9A-Za-z]$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("storagepool.DiskPoolsClient", "ListByResourceGroup", err.Error())
	}

	result.fn = client.listByResourceGroupNextResults
	req, err := client.ListByResourceGroupPreparer(ctx, resourceGroupName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "ListByResourceGroup", nil, "Failure preparing request")
		return
	}

	resp, err := client.ListByResourceGroupSender(req)
	if err != nil {
		result.dplr.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "ListByResourceGroup", resp, "Failure sending request")
		return
	}

	result.dplr, err = client.ListByResourceGroupResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "ListByResourceGroup", resp, "Failure responding to request")
		return
	}
	if result.dplr.hasNextLink() && result.dplr.IsEmpty() {
		err = result.NextWithContext(ctx)
	}

	return
}

// ListByResourceGroupPreparer prepares the ListByResourceGroup request.
func (client DiskPoolsClient) ListByResourceGroupPreparer(ctx context.Context, resourceGroupName string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2020-03-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsGet(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.StoragePool/diskPools", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// ListByResourceGroupSender sends the ListByResourceGroup request. The method will close the
// http.Response Body if it receives an error.
func (client DiskPoolsClient) ListByResourceGroupSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// ListByResourceGroupResponder handles the response to the ListByResourceGroup request. The method always
// closes the http.Response Body.
func (client DiskPoolsClient) ListByResourceGroupResponder(resp *http.Response) (result DiskPoolListResult, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// listByResourceGroupNextResults retrieves the next set of results, if any.
func (client DiskPoolsClient) listByResourceGroupNextResults(ctx context.Context, lastResults DiskPoolListResult) (result DiskPoolListResult, err error) {
	req, err := lastResults.diskPoolListResultPreparer(ctx)
	if err != nil {
		return result, autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "listByResourceGroupNextResults", nil, "Failure preparing next results request")
	}
	if req == nil {
		return
	}
	resp, err := client.ListByResourceGroupSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		return result, autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "listByResourceGroupNextResults", resp, "Failure sending next results request")
	}
	result, err = client.ListByResourceGroupResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "listByResourceGroupNextResults", resp, "Failure responding to next results request")
		return
	}
	return
}

// ListByResourceGroupComplete enumerates all values, automatically crossing page boundaries as required.
func (client DiskPoolsClient) ListByResourceGroupComplete(ctx context.Context, resourceGroupName string) (result DiskPoolListResultIterator, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DiskPoolsClient.ListByResourceGroup")
		defer func() {
			sc := -1
			if result.Response().Response.Response != nil {
				sc = result.page.Response().Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	result.page, err = client.ListByResourceGroup(ctx, resourceGroupName)
	return
}

// ListBySubscription gets a list of Disk Pools in a subscription
func (client DiskPoolsClient) ListBySubscription(ctx context.Context) (result DiskPoolListResultPage, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DiskPoolsClient.ListBySubscription")
		defer func() {
			sc := -1
			if result.dplr.Response.Response != nil {
				sc = result.dplr.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: client.SubscriptionID,
			Constraints: []validation.Constraint{{Target: "client.SubscriptionID", Name: validation.MinLength, Rule: 1, Chain: nil}}}}); err != nil {
		return result, validation.NewError("storagepool.DiskPoolsClient", "ListBySubscription", err.Error())
	}

	result.fn = client.listBySubscriptionNextResults
	req, err := client.ListBySubscriptionPreparer(ctx)
	if err != nil {
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "ListBySubscription", nil, "Failure preparing request")
		return
	}

	resp, err := client.ListBySubscriptionSender(req)
	if err != nil {
		result.dplr.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "ListBySubscription", resp, "Failure sending request")
		return
	}

	result.dplr, err = client.ListBySubscriptionResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "ListBySubscription", resp, "Failure responding to request")
		return
	}
	if result.dplr.hasNextLink() && result.dplr.IsEmpty() {
		err = result.NextWithContext(ctx)
	}

	return
}

// ListBySubscriptionPreparer prepares the ListBySubscription request.
func (client DiskPoolsClient) ListBySubscriptionPreparer(ctx context.Context) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"subscriptionId": autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2020-03-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsGet(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/providers/Microsoft.StoragePool/diskPools", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// ListBySubscriptionSender sends the ListBySubscription request. The method will close the
// http.Response Body if it receives an error.
func (client DiskPoolsClient) ListBySubscriptionSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// ListBySubscriptionResponder handles the response to the ListBySubscription request. The method always
// closes the http.Response Body.
func (client DiskPoolsClient) ListBySubscriptionResponder(resp *http.Response) (result DiskPoolListResult, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// listBySubscriptionNextResults retrieves the next set of results, if any.
func (client DiskPoolsClient) listBySubscriptionNextResults(ctx context.Context, lastResults DiskPoolListResult) (result DiskPoolListResult, err error) {
	req, err := lastResults.diskPoolListResultPreparer(ctx)
	if err != nil {
		return result, autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "listBySubscriptionNextResults", nil, "Failure preparing next results request")
	}
	if req == nil {
		return
	}
	resp, err := client.ListBySubscriptionSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		return result, autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "listBySubscriptionNextResults", resp, "Failure sending next results request")
	}
	result, err = client.ListBySubscriptionResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "listBySubscriptionNextResults", resp, "Failure responding to next results request")
		return
	}
	return
}

// ListBySubscriptionComplete enumerates all values, automatically crossing page boundaries as required.
func (client DiskPoolsClient) ListBySubscriptionComplete(ctx context.Context) (result DiskPoolListResultIterator, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DiskPoolsClient.ListBySubscription")
		defer func() {
			sc := -1
			if result.Response().Response.Response != nil {
				sc = result.page.Response().Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	result.page, err = client.ListBySubscription(ctx)
	return
}

// Update update a Storage Pool.
// Parameters:
// resourceGroupName - the name of the resource group. The name is case insensitive.
// diskPoolName - the name of the Disk Pool.
// diskPoolPayload - request payload for Disk Pool operations.
func (client DiskPoolsClient) Update(ctx context.Context, resourceGroupName string, diskPoolName string, diskPoolPayload DiskPool) (result DiskPool, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/DiskPoolsClient.Update")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: client.SubscriptionID,
			Constraints: []validation.Constraint{{Target: "client.SubscriptionID", Name: validation.MinLength, Rule: 1, Chain: nil}}},
		{TargetValue: resourceGroupName,
			Constraints: []validation.Constraint{{Target: "resourceGroupName", Name: validation.MaxLength, Rule: 90, Chain: nil},
				{Target: "resourceGroupName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "resourceGroupName", Name: validation.Pattern, Rule: `^[-\w\._]*[0-9A-Za-z]$`, Chain: nil}}},
		{TargetValue: diskPoolName,
			Constraints: []validation.Constraint{{Target: "diskPoolName", Name: validation.MaxLength, Rule: 90, Chain: nil},
				{Target: "diskPoolName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "diskPoolName", Name: validation.Pattern, Rule: `^[-\w\._]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("storagepool.DiskPoolsClient", "Update", err.Error())
	}

	req, err := client.UpdatePreparer(ctx, resourceGroupName, diskPoolName, diskPoolPayload)
	if err != nil {
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "Update", nil, "Failure preparing request")
		return
	}

	resp, err := client.UpdateSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "Update", resp, "Failure sending request")
		return
	}

	result, err = client.UpdateResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "storagepool.DiskPoolsClient", "Update", resp, "Failure responding to request")
		return
	}

	return
}

// UpdatePreparer prepares the Update request.
func (client DiskPoolsClient) UpdatePreparer(ctx context.Context, resourceGroupName string, diskPoolName string, diskPoolPayload DiskPool) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"diskPoolName":      autorest.Encode("path", diskPoolName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2020-03-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	diskPoolPayload.SystemData = nil
	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPatch(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.StoragePool/diskPools/{diskPoolName}", pathParameters),
		autorest.WithJSON(diskPoolPayload),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// UpdateSender sends the Update request. The method will close the
// http.Response Body if it receives an error.
func (client DiskPoolsClient) UpdateSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// UpdateResponder handles the response to the Update request. The method always
// closes the http.Response Body.
func (client DiskPoolsClient) UpdateResponder(resp *http.Response) (result DiskPool, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}