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api_op_DescribePackages.go
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api_op_DescribePackages.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package elasticsearchservice
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/elasticsearchservice/types"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Describes all packages available to Amazon ES. Includes options for filtering,
// limiting the number of results, and pagination.
func (c *Client) DescribePackages(ctx context.Context, params *DescribePackagesInput, optFns ...func(*Options)) (*DescribePackagesOutput, error) {
if params == nil {
params = &DescribePackagesInput{}
}
result, metadata, err := c.invokeOperation(ctx, "DescribePackages", params, optFns, c.addOperationDescribePackagesMiddlewares)
if err != nil {
return nil, err
}
out := result.(*DescribePackagesOutput)
out.ResultMetadata = metadata
return out, nil
}
// Container for request parameters to DescribePackage operation.
type DescribePackagesInput struct {
// Only returns packages that match the DescribePackagesFilterList values.
Filters []types.DescribePackagesFilter
// Limits results to a maximum number of packages.
MaxResults int32
// Used for pagination. Only necessary if a previous API call includes a non-null
// NextToken value. If provided, returns results for the next page.
NextToken *string
noSmithyDocumentSerde
}
// Container for response returned by DescribePackages operation.
type DescribePackagesOutput struct {
NextToken *string
// List of PackageDetails objects.
PackageDetailsList []types.PackageDetails
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationDescribePackagesMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsRestjson1_serializeOpDescribePackages{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsRestjson1_deserializeOpDescribePackages{}, 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 = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribePackages(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
}
// DescribePackagesAPIClient is a client that implements the DescribePackages
// operation.
type DescribePackagesAPIClient interface {
DescribePackages(context.Context, *DescribePackagesInput, ...func(*Options)) (*DescribePackagesOutput, error)
}
var _ DescribePackagesAPIClient = (*Client)(nil)
// DescribePackagesPaginatorOptions is the paginator options for DescribePackages
type DescribePackagesPaginatorOptions struct {
// Limits results to a maximum number of packages.
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
}
// DescribePackagesPaginator is a paginator for DescribePackages
type DescribePackagesPaginator struct {
options DescribePackagesPaginatorOptions
client DescribePackagesAPIClient
params *DescribePackagesInput
nextToken *string
firstPage bool
}
// NewDescribePackagesPaginator returns a new DescribePackagesPaginator
func NewDescribePackagesPaginator(client DescribePackagesAPIClient, params *DescribePackagesInput, optFns ...func(*DescribePackagesPaginatorOptions)) *DescribePackagesPaginator {
if params == nil {
params = &DescribePackagesInput{}
}
options := DescribePackagesPaginatorOptions{}
if params.MaxResults != 0 {
options.Limit = params.MaxResults
}
for _, fn := range optFns {
fn(&options)
}
return &DescribePackagesPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.NextToken,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *DescribePackagesPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next DescribePackages page.
func (p *DescribePackagesPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*DescribePackagesOutput, error) {
if !p.HasMorePages() {
return nil, fmt.Errorf("no more pages available")
}
params := *p.params
params.NextToken = p.nextToken
params.MaxResults = p.options.Limit
result, err := p.client.DescribePackages(ctx, ¶ms, optFns...)
if err != nil {
return nil, err
}
p.firstPage = false
prevToken := p.nextToken
p.nextToken = result.NextToken
if p.options.StopOnDuplicateToken &&
prevToken != nil &&
p.nextToken != nil &&
*prevToken == *p.nextToken {
p.nextToken = nil
}
return result, nil
}
func newServiceMetadataMiddleware_opDescribePackages(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "es",
OperationName: "DescribePackages",
}
}