package hdinsight

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

// ClustersClient is the hDInsight Management Client
type ClustersClient struct {
	ManagementClient
}

// NewClustersClient creates an instance of the ClustersClient client.
func NewClustersClient(subscriptionID string) ClustersClient {
	return NewClustersClientWithBaseURI(DefaultBaseURI, subscriptionID)
}

// NewClustersClientWithBaseURI creates an instance of the ClustersClient client.
func NewClustersClientWithBaseURI(baseURI string, subscriptionID string) ClustersClient {
	return ClustersClient{NewWithBaseURI(baseURI, subscriptionID)}
}

// ChangeRdpSettings begins changing the RDP settings on the specified cluster. This method may poll for completion.
// Polling can be canceled by passing the cancel channel argument. The channel will be used to cancel polling and any
// outstanding HTTP requests.
//
// resourceGroupName is the name of the resource group. clusterName is the name of the cluster. parameters is the OS
// profile for RDP.
func (client ClustersClient) ChangeRdpSettings(resourceGroupName string, clusterName string, parameters RDPSettingsParameters, cancel <-chan struct{}) (<-chan autorest.Response, <-chan error) {
	resultChan := make(chan autorest.Response, 1)
	errChan := make(chan error, 1)
	if err := validation.Validate([]validation.Validation{
		{TargetValue: clusterName,
			Constraints: []validation.Constraint{{Target: "clusterName", Name: validation.Pattern, Rule: `^[0-9a-zA-Z][0-9a-zA-Z-]*[a-zA-Z0-9]$`, Chain: nil}}},
		{TargetValue: parameters,
			Constraints: []validation.Constraint{{Target: "parameters.OsProfile", Name: validation.Null, Rule: true, Chain: nil}}}}); err != nil {
		errChan <- validation.NewErrorWithValidationError(err, "hdinsight.ClustersClient", "ChangeRdpSettings")
		close(errChan)
		close(resultChan)
		return resultChan, errChan
	}

	go func() {
		var err error
		var result autorest.Response
		defer func() {
			if err != nil {
				errChan <- err
			}
			resultChan <- result
			close(resultChan)
			close(errChan)
		}()
		req, err := client.ChangeRdpSettingsPreparer(resourceGroupName, clusterName, parameters, cancel)
		if err != nil {
			err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "ChangeRdpSettings", nil, "Failure preparing request")
			return
		}

		resp, err := client.ChangeRdpSettingsSender(req)
		if err != nil {
			result.Response = resp
			err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "ChangeRdpSettings", resp, "Failure sending request")
			return
		}

		result, err = client.ChangeRdpSettingsResponder(resp)
		if err != nil {
			err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "ChangeRdpSettings", resp, "Failure responding to request")
		}
	}()
	return resultChan, errChan
}

// ChangeRdpSettingsPreparer prepares the ChangeRdpSettings request.
func (client ClustersClient) ChangeRdpSettingsPreparer(resourceGroupName string, clusterName string, parameters RDPSettingsParameters, cancel <-chan struct{}) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"clusterName":       autorest.Encode("path", clusterName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2015-03-01-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsJSON(),
		autorest.AsPost(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.HDInsight/clusters/{clusterName}/changerdpsetting", pathParameters),
		autorest.WithJSON(parameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare(&http.Request{Cancel: cancel})
}

// ChangeRdpSettingsSender sends the ChangeRdpSettings request. The method will close the
// http.Response Body if it receives an error.
func (client ClustersClient) ChangeRdpSettingsSender(req *http.Request) (*http.Response, error) {
	return autorest.SendWithSender(client,
		req,
		azure.DoPollForAsynchronous(client.PollingDelay))
}

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

// Create begins creating a new HDInsight cluster with the specified parameters. This method may poll for completion.
// Polling can be canceled by passing the cancel channel argument. The channel will be used to cancel polling and any
// outstanding HTTP requests.
//
// resourceGroupName is the name of the resource group. clusterName is the name of the cluster. parameters is the
// cluster create request.
func (client ClustersClient) Create(resourceGroupName string, clusterName string, parameters ClusterCreateParametersExtended, cancel <-chan struct{}) (<-chan Cluster, <-chan error) {
	resultChan := make(chan Cluster, 1)
	errChan := make(chan error, 1)
	go func() {
		var err error
		var result Cluster
		defer func() {
			if err != nil {
				errChan <- err
			}
			resultChan <- result
			close(resultChan)
			close(errChan)
		}()
		req, err := client.CreatePreparer(resourceGroupName, clusterName, parameters, cancel)
		if err != nil {
			err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "Create", nil, "Failure preparing request")
			return
		}

		resp, err := client.CreateSender(req)
		if err != nil {
			result.Response = autorest.Response{Response: resp}
			err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "Create", resp, "Failure sending request")
			return
		}

		result, err = client.CreateResponder(resp)
		if err != nil {
			err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "Create", resp, "Failure responding to request")
		}
	}()
	return resultChan, errChan
}

// CreatePreparer prepares the Create request.
func (client ClustersClient) CreatePreparer(resourceGroupName string, clusterName string, parameters ClusterCreateParametersExtended, cancel <-chan struct{}) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"clusterName":       autorest.Encode("path", clusterName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2015-03-01-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsJSON(),
		autorest.AsPut(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.HDInsight/clusters/{clusterName}", pathParameters),
		autorest.WithJSON(parameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare(&http.Request{Cancel: cancel})
}

// CreateSender sends the Create request. The method will close the
// http.Response Body if it receives an error.
func (client ClustersClient) CreateSender(req *http.Request) (*http.Response, error) {
	return autorest.SendWithSender(client,
		req,
		azure.DoPollForAsynchronous(client.PollingDelay))
}

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

// Delete begins deleting the specified HDInsight cluster. This method may poll for completion. Polling can be canceled
// by passing the cancel channel argument. The channel will be used to cancel polling and any outstanding HTTP
// requests.
//
// resourceGroupName is the name of the resource group. clusterName is the name of the cluster.
func (client ClustersClient) Delete(resourceGroupName string, clusterName string, cancel <-chan struct{}) (<-chan autorest.Response, <-chan error) {
	resultChan := make(chan autorest.Response, 1)
	errChan := make(chan error, 1)
	go func() {
		var err error
		var result autorest.Response
		defer func() {
			if err != nil {
				errChan <- err
			}
			resultChan <- result
			close(resultChan)
			close(errChan)
		}()
		req, err := client.DeletePreparer(resourceGroupName, clusterName, cancel)
		if err != nil {
			err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "Delete", nil, "Failure preparing request")
			return
		}

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

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

// DeletePreparer prepares the Delete request.
func (client ClustersClient) DeletePreparer(resourceGroupName string, clusterName string, cancel <-chan struct{}) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"clusterName":       autorest.Encode("path", clusterName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2015-03-01-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.HDInsight/clusters/{clusterName}", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare(&http.Request{Cancel: cancel})
}

// DeleteSender sends the Delete request. The method will close the
// http.Response Body if it receives an error.
func (client ClustersClient) DeleteSender(req *http.Request) (*http.Response, error) {
	return autorest.SendWithSender(client,
		req,
		azure.DoPollForAsynchronous(client.PollingDelay))
}

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

// ExecuteScriptActions begins executing script actions on the specified HDInsight cluster. This method may poll for
// completion. Polling can be canceled by passing the cancel channel argument. The channel will be used to cancel
// polling and any outstanding HTTP requests.
//
// resourceGroupName is the name of the resource group. clusterName is the name of the cluster. parameters is the
// parameters for executing script actions.
func (client ClustersClient) ExecuteScriptActions(resourceGroupName string, clusterName string, parameters ExecuteScriptActionParameters, cancel <-chan struct{}) (<-chan autorest.Response, <-chan error) {
	resultChan := make(chan autorest.Response, 1)
	errChan := make(chan error, 1)
	if err := validation.Validate([]validation.Validation{
		{TargetValue: parameters,
			Constraints: []validation.Constraint{{Target: "parameters.PersistOnSuccess", Name: validation.Null, Rule: true, Chain: nil}}}}); err != nil {
		errChan <- validation.NewErrorWithValidationError(err, "hdinsight.ClustersClient", "ExecuteScriptActions")
		close(errChan)
		close(resultChan)
		return resultChan, errChan
	}

	go func() {
		var err error
		var result autorest.Response
		defer func() {
			if err != nil {
				errChan <- err
			}
			resultChan <- result
			close(resultChan)
			close(errChan)
		}()
		req, err := client.ExecuteScriptActionsPreparer(resourceGroupName, clusterName, parameters, cancel)
		if err != nil {
			err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "ExecuteScriptActions", nil, "Failure preparing request")
			return
		}

		resp, err := client.ExecuteScriptActionsSender(req)
		if err != nil {
			result.Response = resp
			err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "ExecuteScriptActions", resp, "Failure sending request")
			return
		}

		result, err = client.ExecuteScriptActionsResponder(resp)
		if err != nil {
			err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "ExecuteScriptActions", resp, "Failure responding to request")
		}
	}()
	return resultChan, errChan
}

// ExecuteScriptActionsPreparer prepares the ExecuteScriptActions request.
func (client ClustersClient) ExecuteScriptActionsPreparer(resourceGroupName string, clusterName string, parameters ExecuteScriptActionParameters, cancel <-chan struct{}) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"clusterName":       autorest.Encode("path", clusterName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2015-03-01-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsJSON(),
		autorest.AsPost(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.HDInsight/clusters/{clusterName}/executeScriptActions", pathParameters),
		autorest.WithJSON(parameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare(&http.Request{Cancel: cancel})
}

// ExecuteScriptActionsSender sends the ExecuteScriptActions request. The method will close the
// http.Response Body if it receives an error.
func (client ClustersClient) ExecuteScriptActionsSender(req *http.Request) (*http.Response, error) {
	return autorest.SendWithSender(client,
		req,
		azure.DoPollForAsynchronous(client.PollingDelay))
}

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

// Get gets the specified cluster.
//
// resourceGroupName is the name of the resource group. clusterName is the name of the cluster.
func (client ClustersClient) Get(resourceGroupName string, clusterName string) (result Cluster, err error) {
	req, err := client.GetPreparer(resourceGroupName, clusterName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "Get", nil, "Failure preparing request")
		return
	}

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

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

	return
}

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

	const APIVersion = "2015-03-01-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.HDInsight/clusters/{clusterName}", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare(&http.Request{})
}

// GetSender sends the Get request. The method will close the
// http.Response Body if it receives an error.
func (client ClustersClient) GetSender(req *http.Request) (*http.Response, error) {
	return autorest.SendWithSender(client, req)
}

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

// List lists HDInsight clusters under the subscription.
func (client ClustersClient) List() (result ClusterListResult, err error) {
	req, err := client.ListPreparer()
	if err != nil {
		err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "List", nil, "Failure preparing request")
		return
	}

	resp, err := client.ListSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "List", resp, "Failure sending request")
		return
	}

	result, err = client.ListResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "List", resp, "Failure responding to request")
	}

	return
}

// ListPreparer prepares the List request.
func (client ClustersClient) ListPreparer() (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"subscriptionId": autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2015-03-01-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

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

// ListSender sends the List request. The method will close the
// http.Response Body if it receives an error.
func (client ClustersClient) ListSender(req *http.Request) (*http.Response, error) {
	return autorest.SendWithSender(client, req)
}

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

// ListNextResults retrieves the next set of results, if any.
func (client ClustersClient) ListNextResults(lastResults ClusterListResult) (result ClusterListResult, err error) {
	req, err := lastResults.ClusterListResultPreparer()
	if err != nil {
		return result, autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "List", nil, "Failure preparing next results request")
	}
	if req == nil {
		return
	}

	resp, err := client.ListSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		return result, autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "List", resp, "Failure sending next results request")
	}

	result, err = client.ListResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "List", resp, "Failure responding to next results request")
	}

	return
}

// ListComplete gets all elements from the list without paging.
func (client ClustersClient) ListComplete(cancel <-chan struct{}) (<-chan Cluster, <-chan error) {
	resultChan := make(chan Cluster)
	errChan := make(chan error, 1)
	go func() {
		defer func() {
			close(resultChan)
			close(errChan)
		}()
		list, err := client.List()
		if err != nil {
			errChan <- err
			return
		}
		if list.Value != nil {
			for _, item := range *list.Value {
				select {
				case <-cancel:
					return
				case resultChan <- item:
					// Intentionally left blank
				}
			}
		}
		for list.NextLink != nil {
			list, err = client.ListNextResults(list)
			if err != nil {
				errChan <- err
				return
			}
			if list.Value != nil {
				for _, item := range *list.Value {
					select {
					case <-cancel:
						return
					case resultChan <- item:
						// Intentionally left blank
					}
				}
			}
		}
	}()
	return resultChan, errChan
}

// ListByResourceGroup list the HDInsight clusters in a resource group.
//
// resourceGroupName is the name of the resource group.
func (client ClustersClient) ListByResourceGroup(resourceGroupName string) (result ClusterListResult, err error) {
	req, err := client.ListByResourceGroupPreparer(resourceGroupName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "ListByResourceGroup", nil, "Failure preparing request")
		return
	}

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

	result, err = client.ListByResourceGroupResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "ListByResourceGroup", resp, "Failure responding to request")
	}

	return
}

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

	const APIVersion = "2015-03-01-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.HDInsight/clusters", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare(&http.Request{})
}

// ListByResourceGroupSender sends the ListByResourceGroup request. The method will close the
// http.Response Body if it receives an error.
func (client ClustersClient) ListByResourceGroupSender(req *http.Request) (*http.Response, error) {
	return autorest.SendWithSender(client, req)
}

// ListByResourceGroupResponder handles the response to the ListByResourceGroup request. The method always
// closes the http.Response Body.
func (client ClustersClient) ListByResourceGroupResponder(resp *http.Response) (result ClusterListResult, err error) {
	err = autorest.Respond(
		resp,
		client.ByInspecting(),
		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 ClustersClient) ListByResourceGroupNextResults(lastResults ClusterListResult) (result ClusterListResult, err error) {
	req, err := lastResults.ClusterListResultPreparer()
	if err != nil {
		return result, autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "ListByResourceGroup", 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, "hdinsight.ClustersClient", "ListByResourceGroup", resp, "Failure sending next results request")
	}

	result, err = client.ListByResourceGroupResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "ListByResourceGroup", resp, "Failure responding to next results request")
	}

	return
}

// ListByResourceGroupComplete gets all elements from the list without paging.
func (client ClustersClient) ListByResourceGroupComplete(resourceGroupName string, cancel <-chan struct{}) (<-chan Cluster, <-chan error) {
	resultChan := make(chan Cluster)
	errChan := make(chan error, 1)
	go func() {
		defer func() {
			close(resultChan)
			close(errChan)
		}()
		list, err := client.ListByResourceGroup(resourceGroupName)
		if err != nil {
			errChan <- err
			return
		}
		if list.Value != nil {
			for _, item := range *list.Value {
				select {
				case <-cancel:
					return
				case resultChan <- item:
					// Intentionally left blank
				}
			}
		}
		for list.NextLink != nil {
			list, err = client.ListByResourceGroupNextResults(list)
			if err != nil {
				errChan <- err
				return
			}
			if list.Value != nil {
				for _, item := range *list.Value {
					select {
					case <-cancel:
						return
					case resultChan <- item:
						// Intentionally left blank
					}
				}
			}
		}
	}()
	return resultChan, errChan
}

// Resize begins a resize operation on the specified HDInsight cluster. This method may poll for completion. Polling
// can be canceled by passing the cancel channel argument. The channel will be used to cancel polling and any
// outstanding HTTP requests.
//
// resourceGroupName is the name of the resource group. clusterName is the name of the cluster. roleName is the
// constant value for the roleName parameters is the parameters for the resize operation.
func (client ClustersClient) Resize(resourceGroupName string, clusterName string, roleName string, parameters ClusterResizeParameters, cancel <-chan struct{}) (<-chan autorest.Response, <-chan error) {
	resultChan := make(chan autorest.Response, 1)
	errChan := make(chan error, 1)
	go func() {
		var err error
		var result autorest.Response
		defer func() {
			if err != nil {
				errChan <- err
			}
			resultChan <- result
			close(resultChan)
			close(errChan)
		}()
		req, err := client.ResizePreparer(resourceGroupName, clusterName, roleName, parameters, cancel)
		if err != nil {
			err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "Resize", nil, "Failure preparing request")
			return
		}

		resp, err := client.ResizeSender(req)
		if err != nil {
			result.Response = resp
			err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "Resize", resp, "Failure sending request")
			return
		}

		result, err = client.ResizeResponder(resp)
		if err != nil {
			err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "Resize", resp, "Failure responding to request")
		}
	}()
	return resultChan, errChan
}

// ResizePreparer prepares the Resize request.
func (client ClustersClient) ResizePreparer(resourceGroupName string, clusterName string, roleName string, parameters ClusterResizeParameters, cancel <-chan struct{}) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"clusterName":       autorest.Encode("path", clusterName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"roleName":          autorest.Encode("path", roleName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2015-03-01-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsJSON(),
		autorest.AsPost(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.HDInsight/clusters/{clusterName}/roles/{roleName}/resize", pathParameters),
		autorest.WithJSON(parameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare(&http.Request{Cancel: cancel})
}

// ResizeSender sends the Resize request. The method will close the
// http.Response Body if it receives an error.
func (client ClustersClient) ResizeSender(req *http.Request) (*http.Response, error) {
	return autorest.SendWithSender(client,
		req,
		azure.DoPollForAsynchronous(client.PollingDelay))
}

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

// Update patch HDInsight cluster with the specified parameters.
//
// resourceGroupName is the name of the resource group. clusterName is the name of the cluster. parameters is the
// cluster patch request.
func (client ClustersClient) Update(resourceGroupName string, clusterName string, parameters ClusterPatchParameters) (result Cluster, err error) {
	req, err := client.UpdatePreparer(resourceGroupName, clusterName, parameters)
	if err != nil {
		err = autorest.NewErrorWithError(err, "hdinsight.ClustersClient", "Update", nil, "Failure preparing request")
		return
	}

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

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

	return
}

// UpdatePreparer prepares the Update request.
func (client ClustersClient) UpdatePreparer(resourceGroupName string, clusterName string, parameters ClusterPatchParameters) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"clusterName":       autorest.Encode("path", clusterName),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2015-03-01-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsJSON(),
		autorest.AsPatch(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.HDInsight/clusters/{clusterName}", pathParameters),
		autorest.WithJSON(parameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare(&http.Request{})
}

// UpdateSender sends the Update request. The method will close the
// http.Response Body if it receives an error.
func (client ClustersClient) UpdateSender(req *http.Request) (*http.Response, error) {
	return autorest.SendWithSender(client, req)
}

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