package apimanagement

// 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"
)

// CacheClient is the apiManagement Client
type CacheClient struct {
	BaseClient
}

// NewCacheClient creates an instance of the CacheClient client.
func NewCacheClient(subscriptionID string) CacheClient {
	return NewCacheClientWithBaseURI(DefaultBaseURI, subscriptionID)
}

// NewCacheClientWithBaseURI creates an instance of the CacheClient 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 NewCacheClientWithBaseURI(baseURI string, subscriptionID string) CacheClient {
	return CacheClient{NewWithBaseURI(baseURI, subscriptionID)}
}

// CreateOrUpdate creates or updates an External Cache to be used in Api Management instance.
// Parameters:
// resourceGroupName - the name of the resource group.
// serviceName - the name of the API Management service.
// cacheID - identifier of the Cache entity. Cache identifier (should be either 'default' or valid Azure region
// identifier).
// parameters - create or Update parameters.
// ifMatch - eTag of the Entity. Not required when creating an entity, but required when updating an entity.
func (client CacheClient) CreateOrUpdate(ctx context.Context, resourceGroupName string, serviceName string, cacheID string, parameters CacheContract, ifMatch string) (result CacheContract, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/CacheClient.CreateOrUpdate")
		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: serviceName,
			Constraints: []validation.Constraint{{Target: "serviceName", Name: validation.MaxLength, Rule: 50, Chain: nil},
				{Target: "serviceName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "serviceName", Name: validation.Pattern, Rule: `^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$`, Chain: nil}}},
		{TargetValue: cacheID,
			Constraints: []validation.Constraint{{Target: "cacheID", Name: validation.MaxLength, Rule: 80, Chain: nil},
				{Target: "cacheID", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "cacheID", Name: validation.Pattern, Rule: `^[^*#&+:<>?]+$`, Chain: nil}}},
		{TargetValue: parameters,
			Constraints: []validation.Constraint{{Target: "parameters.CacheContractProperties", Name: validation.Null, Rule: false,
				Chain: []validation.Constraint{{Target: "parameters.CacheContractProperties.Description", Name: validation.Null, Rule: false,
					Chain: []validation.Constraint{{Target: "parameters.CacheContractProperties.Description", Name: validation.MaxLength, Rule: 2000, Chain: nil}}},
					{Target: "parameters.CacheContractProperties.ConnectionString", Name: validation.Null, Rule: true,
						Chain: []validation.Constraint{{Target: "parameters.CacheContractProperties.ConnectionString", Name: validation.MaxLength, Rule: 300, Chain: nil}}},
					{Target: "parameters.CacheContractProperties.ResourceID", Name: validation.Null, Rule: false,
						Chain: []validation.Constraint{{Target: "parameters.CacheContractProperties.ResourceID", Name: validation.MaxLength, Rule: 2000, Chain: nil}}},
				}}}}}); err != nil {
		return result, validation.NewError("apimanagement.CacheClient", "CreateOrUpdate", err.Error())
	}

	req, err := client.CreateOrUpdatePreparer(ctx, resourceGroupName, serviceName, cacheID, parameters, ifMatch)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.CacheClient", "CreateOrUpdate", nil, "Failure preparing request")
		return
	}

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

	result, err = client.CreateOrUpdateResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.CacheClient", "CreateOrUpdate", resp, "Failure responding to request")
		return
	}

	return
}

// CreateOrUpdatePreparer prepares the CreateOrUpdate request.
func (client CacheClient) CreateOrUpdatePreparer(ctx context.Context, resourceGroupName string, serviceName string, cacheID string, parameters CacheContract, ifMatch string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"cacheId":           autorest.Encode("path", cacheID),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"serviceName":       autorest.Encode("path", serviceName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2019-12-01-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPut(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/caches/{cacheId}", pathParameters),
		autorest.WithJSON(parameters),
		autorest.WithQueryParameters(queryParameters))
	if len(ifMatch) > 0 {
		preparer = autorest.DecoratePreparer(preparer,
			autorest.WithHeader("If-Match", autorest.String(ifMatch)))
	}
	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 CacheClient) CreateOrUpdateSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

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

// Delete deletes specific Cache.
// Parameters:
// resourceGroupName - the name of the resource group.
// serviceName - the name of the API Management service.
// cacheID - identifier of the Cache entity. Cache identifier (should be either 'default' or valid Azure region
// identifier).
// ifMatch - eTag of the Entity. ETag should match the current entity state from the header response of the GET
// request or it should be * for unconditional update.
func (client CacheClient) Delete(ctx context.Context, resourceGroupName string, serviceName string, cacheID string, ifMatch string) (result autorest.Response, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/CacheClient.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: serviceName,
			Constraints: []validation.Constraint{{Target: "serviceName", Name: validation.MaxLength, Rule: 50, Chain: nil},
				{Target: "serviceName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "serviceName", Name: validation.Pattern, Rule: `^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$`, Chain: nil}}},
		{TargetValue: cacheID,
			Constraints: []validation.Constraint{{Target: "cacheID", Name: validation.MaxLength, Rule: 80, Chain: nil},
				{Target: "cacheID", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "cacheID", Name: validation.Pattern, Rule: `^[^*#&+:<>?]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("apimanagement.CacheClient", "Delete", err.Error())
	}

	req, err := client.DeletePreparer(ctx, resourceGroupName, serviceName, cacheID, ifMatch)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.CacheClient", "Delete", nil, "Failure preparing request")
		return
	}

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

	result, err = client.DeleteResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.CacheClient", "Delete", resp, "Failure responding to request")
		return
	}

	return
}

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

	const APIVersion = "2019-12-01-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.ApiManagement/service/{serviceName}/caches/{cacheId}", pathParameters),
		autorest.WithQueryParameters(queryParameters),
		autorest.WithHeader("If-Match", autorest.String(ifMatch)))
	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 CacheClient) DeleteSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

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

// Get gets the details of the Cache specified by its identifier.
// Parameters:
// resourceGroupName - the name of the resource group.
// serviceName - the name of the API Management service.
// cacheID - identifier of the Cache entity. Cache identifier (should be either 'default' or valid Azure region
// identifier).
func (client CacheClient) Get(ctx context.Context, resourceGroupName string, serviceName string, cacheID string) (result CacheContract, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/CacheClient.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: serviceName,
			Constraints: []validation.Constraint{{Target: "serviceName", Name: validation.MaxLength, Rule: 50, Chain: nil},
				{Target: "serviceName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "serviceName", Name: validation.Pattern, Rule: `^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$`, Chain: nil}}},
		{TargetValue: cacheID,
			Constraints: []validation.Constraint{{Target: "cacheID", Name: validation.MaxLength, Rule: 80, Chain: nil},
				{Target: "cacheID", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "cacheID", Name: validation.Pattern, Rule: `^[^*#&+:<>?]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("apimanagement.CacheClient", "Get", err.Error())
	}

	req, err := client.GetPreparer(ctx, resourceGroupName, serviceName, cacheID)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.CacheClient", "Get", nil, "Failure preparing request")
		return
	}

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

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

	return
}

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

	const APIVersion = "2019-12-01-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.ApiManagement/service/{serviceName}/caches/{cacheId}", 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 CacheClient) 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 CacheClient) GetResponder(resp *http.Response) (result CacheContract, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// GetEntityTag gets the entity state (Etag) version of the Cache specified by its identifier.
// Parameters:
// resourceGroupName - the name of the resource group.
// serviceName - the name of the API Management service.
// cacheID - identifier of the Cache entity. Cache identifier (should be either 'default' or valid Azure region
// identifier).
func (client CacheClient) GetEntityTag(ctx context.Context, resourceGroupName string, serviceName string, cacheID string) (result autorest.Response, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/CacheClient.GetEntityTag")
		defer func() {
			sc := -1
			if result.Response != nil {
				sc = result.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: serviceName,
			Constraints: []validation.Constraint{{Target: "serviceName", Name: validation.MaxLength, Rule: 50, Chain: nil},
				{Target: "serviceName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "serviceName", Name: validation.Pattern, Rule: `^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$`, Chain: nil}}},
		{TargetValue: cacheID,
			Constraints: []validation.Constraint{{Target: "cacheID", Name: validation.MaxLength, Rule: 80, Chain: nil},
				{Target: "cacheID", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "cacheID", Name: validation.Pattern, Rule: `^[^*#&+:<>?]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("apimanagement.CacheClient", "GetEntityTag", err.Error())
	}

	req, err := client.GetEntityTagPreparer(ctx, resourceGroupName, serviceName, cacheID)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.CacheClient", "GetEntityTag", nil, "Failure preparing request")
		return
	}

	resp, err := client.GetEntityTagSender(req)
	if err != nil {
		result.Response = resp
		err = autorest.NewErrorWithError(err, "apimanagement.CacheClient", "GetEntityTag", resp, "Failure sending request")
		return
	}

	result, err = client.GetEntityTagResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.CacheClient", "GetEntityTag", resp, "Failure responding to request")
		return
	}

	return
}

// GetEntityTagPreparer prepares the GetEntityTag request.
func (client CacheClient) GetEntityTagPreparer(ctx context.Context, resourceGroupName string, serviceName string, cacheID string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"cacheId":           autorest.Encode("path", cacheID),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"serviceName":       autorest.Encode("path", serviceName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2019-12-01-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsHead(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/caches/{cacheId}", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

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

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

// ListByService lists a collection of all external Caches in the specified service instance.
// Parameters:
// resourceGroupName - the name of the resource group.
// serviceName - the name of the API Management service.
// top - number of records to return.
// skip - number of records to skip.
func (client CacheClient) ListByService(ctx context.Context, resourceGroupName string, serviceName string, top *int32, skip *int32) (result CacheCollectionPage, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/CacheClient.ListByService")
		defer func() {
			sc := -1
			if result.cc.Response.Response != nil {
				sc = result.cc.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: serviceName,
			Constraints: []validation.Constraint{{Target: "serviceName", Name: validation.MaxLength, Rule: 50, Chain: nil},
				{Target: "serviceName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "serviceName", Name: validation.Pattern, Rule: `^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$`, Chain: nil}}},
		{TargetValue: top,
			Constraints: []validation.Constraint{{Target: "top", Name: validation.Null, Rule: false,
				Chain: []validation.Constraint{{Target: "top", Name: validation.InclusiveMinimum, Rule: int64(1), Chain: nil}}}}},
		{TargetValue: skip,
			Constraints: []validation.Constraint{{Target: "skip", Name: validation.Null, Rule: false,
				Chain: []validation.Constraint{{Target: "skip", Name: validation.InclusiveMinimum, Rule: int64(0), Chain: nil}}}}}}); err != nil {
		return result, validation.NewError("apimanagement.CacheClient", "ListByService", err.Error())
	}

	result.fn = client.listByServiceNextResults
	req, err := client.ListByServicePreparer(ctx, resourceGroupName, serviceName, top, skip)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.CacheClient", "ListByService", nil, "Failure preparing request")
		return
	}

	resp, err := client.ListByServiceSender(req)
	if err != nil {
		result.cc.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "apimanagement.CacheClient", "ListByService", resp, "Failure sending request")
		return
	}

	result.cc, err = client.ListByServiceResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.CacheClient", "ListByService", resp, "Failure responding to request")
		return
	}
	if result.cc.hasNextLink() && result.cc.IsEmpty() {
		err = result.NextWithContext(ctx)
		return
	}

	return
}

// ListByServicePreparer prepares the ListByService request.
func (client CacheClient) ListByServicePreparer(ctx context.Context, resourceGroupName string, serviceName string, top *int32, skip *int32) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"serviceName":       autorest.Encode("path", serviceName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2019-12-01-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}
	if top != nil {
		queryParameters["$top"] = autorest.Encode("query", *top)
	}
	if skip != nil {
		queryParameters["$skip"] = autorest.Encode("query", *skip)
	}

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

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

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

// listByServiceNextResults retrieves the next set of results, if any.
func (client CacheClient) listByServiceNextResults(ctx context.Context, lastResults CacheCollection) (result CacheCollection, err error) {
	req, err := lastResults.cacheCollectionPreparer(ctx)
	if err != nil {
		return result, autorest.NewErrorWithError(err, "apimanagement.CacheClient", "listByServiceNextResults", nil, "Failure preparing next results request")
	}
	if req == nil {
		return
	}
	resp, err := client.ListByServiceSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		return result, autorest.NewErrorWithError(err, "apimanagement.CacheClient", "listByServiceNextResults", resp, "Failure sending next results request")
	}
	result, err = client.ListByServiceResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.CacheClient", "listByServiceNextResults", resp, "Failure responding to next results request")
	}
	return
}

// ListByServiceComplete enumerates all values, automatically crossing page boundaries as required.
func (client CacheClient) ListByServiceComplete(ctx context.Context, resourceGroupName string, serviceName string, top *int32, skip *int32) (result CacheCollectionIterator, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/CacheClient.ListByService")
		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.ListByService(ctx, resourceGroupName, serviceName, top, skip)
	return
}

// Update updates the details of the cache specified by its identifier.
// Parameters:
// resourceGroupName - the name of the resource group.
// serviceName - the name of the API Management service.
// cacheID - identifier of the Cache entity. Cache identifier (should be either 'default' or valid Azure region
// identifier).
// parameters - update parameters.
// ifMatch - eTag of the Entity. ETag should match the current entity state from the header response of the GET
// request or it should be * for unconditional update.
func (client CacheClient) Update(ctx context.Context, resourceGroupName string, serviceName string, cacheID string, parameters CacheUpdateParameters, ifMatch string) (result autorest.Response, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/CacheClient.Update")
		defer func() {
			sc := -1
			if result.Response != nil {
				sc = result.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: serviceName,
			Constraints: []validation.Constraint{{Target: "serviceName", Name: validation.MaxLength, Rule: 50, Chain: nil},
				{Target: "serviceName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "serviceName", Name: validation.Pattern, Rule: `^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$`, Chain: nil}}},
		{TargetValue: cacheID,
			Constraints: []validation.Constraint{{Target: "cacheID", Name: validation.MaxLength, Rule: 80, Chain: nil},
				{Target: "cacheID", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "cacheID", Name: validation.Pattern, Rule: `^[^*#&+:<>?]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("apimanagement.CacheClient", "Update", err.Error())
	}

	req, err := client.UpdatePreparer(ctx, resourceGroupName, serviceName, cacheID, parameters, ifMatch)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.CacheClient", "Update", nil, "Failure preparing request")
		return
	}

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

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

	return
}

// UpdatePreparer prepares the Update request.
func (client CacheClient) UpdatePreparer(ctx context.Context, resourceGroupName string, serviceName string, cacheID string, parameters CacheUpdateParameters, ifMatch string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"cacheId":           autorest.Encode("path", cacheID),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"serviceName":       autorest.Encode("path", serviceName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2019-12-01-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPatch(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/caches/{cacheId}", pathParameters),
		autorest.WithJSON(parameters),
		autorest.WithQueryParameters(queryParameters),
		autorest.WithHeader("If-Match", autorest.String(ifMatch)))
	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 CacheClient) 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 CacheClient) UpdateResponder(resp *http.Response) (result autorest.Response, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK, http.StatusNoContent),
		autorest.ByClosing())
	result.Response = resp
	return
}
