api_op_DescribeNodeConfigurationOptions.go

// Code generated by smithy-go-codegen DO NOT EDIT.

package redshift

import (
	"context"
	"fmt"
	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
	"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
	"github.com/aws/aws-sdk-go-v2/service/redshift/types"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
)

// Returns properties of possible node configurations such as node type, number of
// nodes, and disk usage for the specified action type.
func (c *Client) DescribeNodeConfigurationOptions(ctx context.Context, params *DescribeNodeConfigurationOptionsInput, optFns ...func(*Options)) (*DescribeNodeConfigurationOptionsOutput, error) {
	if params == nil {
		params = &DescribeNodeConfigurationOptionsInput{}
	}

	result, metadata, err := c.invokeOperation(ctx, "DescribeNodeConfigurationOptions", params, optFns, c.addOperationDescribeNodeConfigurationOptionsMiddlewares)
	if err != nil {
		return nil, err
	}

	out := result.(*DescribeNodeConfigurationOptionsOutput)
	out.ResultMetadata = metadata
	return out, nil
}

type DescribeNodeConfigurationOptionsInput struct {

	// The action type to evaluate for possible node configurations. Specify
	// "restore-cluster" to get configuration combinations based on an existing
	// snapshot. Specify "recommend-node-config" to get configuration recommendations
	// based on an existing cluster or snapshot. Specify "resize-cluster" to get
	// configuration combinations for elastic resize based on an existing cluster.
	//
	// This member is required.
	ActionType types.ActionType

	// The identifier of the cluster to evaluate for possible node configurations.
	ClusterIdentifier *string

	// A set of name, operator, and value items to filter the results.
	Filters []types.NodeConfigurationOptionsFilter

	// An optional parameter that specifies the starting point to return a set of
	// response records. When the results of a DescribeNodeConfigurationOptions request
	// exceed the value specified in MaxRecords, Amazon Web Services returns a value in
	// the Marker field of the response. You can retrieve the next set of response
	// records by providing the returned marker value in the Marker parameter and
	// retrying the request.
	Marker *string

	// The maximum number of response records to return in each call. If the number of
	// remaining response records exceeds the specified MaxRecords value, a value is
	// returned in a marker field of the response. You can retrieve the next set of
	// records by retrying the command with the returned marker value. Default: 500
	// Constraints: minimum 100, maximum 500.
	MaxRecords *int32

	// The Amazon Web Services account used to create or copy the snapshot. Required if
	// you are restoring a snapshot you do not own, optional if you own the snapshot.
	OwnerAccount *string

	// The identifier of the snapshot to evaluate for possible node configurations.
	SnapshotIdentifier *string

	noSmithyDocumentSerde
}

type DescribeNodeConfigurationOptionsOutput struct {

	// A value that indicates the starting point for the next set of response records
	// in a subsequent request. If a value is returned in a response, you can retrieve
	// the next set of records by providing this returned marker value in the Marker
	// parameter and retrying the command. If the Marker field is empty, all response
	// records have been retrieved for the request.
	Marker *string

	// A list of valid node configurations.
	NodeConfigurationOptionList []types.NodeConfigurationOption

	// Metadata pertaining to the operation's result.
	ResultMetadata middleware.Metadata

	noSmithyDocumentSerde
}

func (c *Client) addOperationDescribeNodeConfigurationOptionsMiddlewares(stack *middleware.Stack, options Options) (err error) {
	err = stack.Serialize.Add(&awsAwsquery_serializeOpDescribeNodeConfigurationOptions{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsquery_deserializeOpDescribeNodeConfigurationOptions{}, middleware.After)
	if err != nil {
		return err
	}
	if err = addSetLoggerMiddleware(stack, options); err != nil {
		return err
	}
	if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
		return err
	}
	if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
		return err
	}
	if err = addResolveEndpointMiddleware(stack, options); err != nil {
		return err
	}
	if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
		return err
	}
	if err = addRetryMiddlewares(stack, options); err != nil {
		return err
	}
	if err = addHTTPSignerV4Middleware(stack, options); err != nil {
		return err
	}
	if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
		return err
	}
	if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
		return err
	}
	if err = addClientUserAgent(stack); err != nil {
		return err
	}
	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
		return err
	}
	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
		return err
	}
	if err = addOpDescribeNodeConfigurationOptionsValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeNodeConfigurationOptions(options.Region), middleware.Before); err != nil {
		return err
	}
	if err = addRequestIDRetrieverMiddleware(stack); err != nil {
		return err
	}
	if err = addResponseErrorMiddleware(stack); err != nil {
		return err
	}
	if err = addRequestResponseLogging(stack, options); err != nil {
		return err
	}
	return nil
}

// DescribeNodeConfigurationOptionsAPIClient is a client that implements the
// DescribeNodeConfigurationOptions operation.
type DescribeNodeConfigurationOptionsAPIClient interface {
	DescribeNodeConfigurationOptions(context.Context, *DescribeNodeConfigurationOptionsInput, ...func(*Options)) (*DescribeNodeConfigurationOptionsOutput, error)
}

var _ DescribeNodeConfigurationOptionsAPIClient = (*Client)(nil)

// DescribeNodeConfigurationOptionsPaginatorOptions is the paginator options for
// DescribeNodeConfigurationOptions
type DescribeNodeConfigurationOptionsPaginatorOptions struct {
	// The maximum number of response records to return in each call. If the number of
	// remaining response records exceeds the specified MaxRecords value, a value is
	// returned in a marker field of the response. You can retrieve the next set of
	// records by retrying the command with the returned marker value. Default: 500
	// Constraints: minimum 100, maximum 500.
	Limit int32

	// Set to true if pagination should stop if the service returns a pagination token
	// that matches the most recent token provided to the service.
	StopOnDuplicateToken bool
}

// DescribeNodeConfigurationOptionsPaginator is a paginator for
// DescribeNodeConfigurationOptions
type DescribeNodeConfigurationOptionsPaginator struct {
	options   DescribeNodeConfigurationOptionsPaginatorOptions
	client    DescribeNodeConfigurationOptionsAPIClient
	params    *DescribeNodeConfigurationOptionsInput
	nextToken *string
	firstPage bool
}

// NewDescribeNodeConfigurationOptionsPaginator returns a new
// DescribeNodeConfigurationOptionsPaginator
func NewDescribeNodeConfigurationOptionsPaginator(client DescribeNodeConfigurationOptionsAPIClient, params *DescribeNodeConfigurationOptionsInput, optFns ...func(*DescribeNodeConfigurationOptionsPaginatorOptions)) *DescribeNodeConfigurationOptionsPaginator {
	if params == nil {
		params = &DescribeNodeConfigurationOptionsInput{}
	}

	options := DescribeNodeConfigurationOptionsPaginatorOptions{}
	if params.MaxRecords != nil {
		options.Limit = *params.MaxRecords
	}

	for _, fn := range optFns {
		fn(&options)
	}

	return &DescribeNodeConfigurationOptionsPaginator{
		options:   options,
		client:    client,
		params:    params,
		firstPage: true,
		nextToken: params.Marker,
	}
}

// HasMorePages returns a boolean indicating whether more pages are available
func (p *DescribeNodeConfigurationOptionsPaginator) HasMorePages() bool {
	return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}

// NextPage retrieves the next DescribeNodeConfigurationOptions page.
func (p *DescribeNodeConfigurationOptionsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*DescribeNodeConfigurationOptionsOutput, error) {
	if !p.HasMorePages() {
		return nil, fmt.Errorf("no more pages available")
	}

	params := *p.params
	params.Marker = p.nextToken

	var limit *int32
	if p.options.Limit > 0 {
		limit = &p.options.Limit
	}
	params.MaxRecords = limit

	result, err := p.client.DescribeNodeConfigurationOptions(ctx, &params, optFns...)
	if err != nil {
		return nil, err
	}
	p.firstPage = false

	prevToken := p.nextToken
	p.nextToken = result.Marker

	if p.options.StopOnDuplicateToken &&
		prevToken != nil &&
		p.nextToken != nil &&
		*prevToken == *p.nextToken {
		p.nextToken = nil
	}

	return result, nil
}

func newServiceMetadataMiddleware_opDescribeNodeConfigurationOptions(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		SigningName:   "redshift",
		OperationName: "DescribeNodeConfigurationOptions",
	}
}