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api_op_DescribeGlobalClusters.go
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api_op_DescribeGlobalClusters.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package rds
import (
"context"
"errors"
"fmt"
"github.com/aws/aws-sdk-go-v2/aws"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
internalauth "github.com/aws/aws-sdk-go-v2/internal/auth"
"github.com/aws/aws-sdk-go-v2/service/rds/types"
smithyendpoints "github.com/aws/smithy-go/endpoints"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Returns information about Aurora global database clusters. This API supports
// pagination. For more information on Amazon Aurora, see What is Amazon Aurora? (https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/CHAP_AuroraOverview.html)
// in the Amazon Aurora User Guide. This action only applies to Aurora DB clusters.
func (c *Client) DescribeGlobalClusters(ctx context.Context, params *DescribeGlobalClustersInput, optFns ...func(*Options)) (*DescribeGlobalClustersOutput, error) {
if params == nil {
params = &DescribeGlobalClustersInput{}
}
result, metadata, err := c.invokeOperation(ctx, "DescribeGlobalClusters", params, optFns, c.addOperationDescribeGlobalClustersMiddlewares)
if err != nil {
return nil, err
}
out := result.(*DescribeGlobalClustersOutput)
out.ResultMetadata = metadata
return out, nil
}
type DescribeGlobalClustersInput struct {
// This parameter isn't currently supported.
Filters []types.Filter
// The user-supplied DB cluster identifier. If this parameter is specified,
// information from only the specific DB cluster is returned. This parameter isn't
// case-sensitive. Constraints:
// - If supplied, must match an existing DBClusterIdentifier.
GlobalClusterIdentifier *string
// An optional pagination token provided by a previous DescribeGlobalClusters
// request. If this parameter is specified, the response includes only records
// beyond the marker, up to the value specified by MaxRecords .
Marker *string
// The maximum number of records to include in the response. If more records exist
// than the specified MaxRecords value, a pagination token called a marker is
// included in the response so that you can retrieve the remaining results.
// Default: 100 Constraints: Minimum 20, maximum 100.
MaxRecords *int32
noSmithyDocumentSerde
}
type DescribeGlobalClustersOutput struct {
// The list of global clusters returned by this request.
GlobalClusters []types.GlobalCluster
// An optional pagination token provided by a previous DescribeGlobalClusters
// request. If this parameter is specified, the response includes only records
// beyond the marker, up to the value specified by MaxRecords .
Marker *string
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationDescribeGlobalClustersMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsAwsquery_serializeOpDescribeGlobalClusters{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsquery_deserializeOpDescribeGlobalClusters{}, middleware.After)
if err != nil {
return err
}
if err = addlegacyEndpointContextSetter(stack, options); 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, options); err != nil {
return err
}
if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = addDescribeGlobalClustersResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = addOpDescribeGlobalClustersValidationMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeGlobalClusters(options.Region), middleware.Before); err != nil {
return err
}
if err = awsmiddleware.AddRecursionDetection(stack); 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
}
if err = addendpointDisableHTTPSMiddleware(stack, options); err != nil {
return err
}
return nil
}
// DescribeGlobalClustersAPIClient is a client that implements the
// DescribeGlobalClusters operation.
type DescribeGlobalClustersAPIClient interface {
DescribeGlobalClusters(context.Context, *DescribeGlobalClustersInput, ...func(*Options)) (*DescribeGlobalClustersOutput, error)
}
var _ DescribeGlobalClustersAPIClient = (*Client)(nil)
// DescribeGlobalClustersPaginatorOptions is the paginator options for
// DescribeGlobalClusters
type DescribeGlobalClustersPaginatorOptions struct {
// The maximum number of records to include in the response. If more records exist
// than the specified MaxRecords value, a pagination token called a marker is
// included in the response so that you can retrieve the remaining results.
// Default: 100 Constraints: Minimum 20, maximum 100.
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
}
// DescribeGlobalClustersPaginator is a paginator for DescribeGlobalClusters
type DescribeGlobalClustersPaginator struct {
options DescribeGlobalClustersPaginatorOptions
client DescribeGlobalClustersAPIClient
params *DescribeGlobalClustersInput
nextToken *string
firstPage bool
}
// NewDescribeGlobalClustersPaginator returns a new DescribeGlobalClustersPaginator
func NewDescribeGlobalClustersPaginator(client DescribeGlobalClustersAPIClient, params *DescribeGlobalClustersInput, optFns ...func(*DescribeGlobalClustersPaginatorOptions)) *DescribeGlobalClustersPaginator {
if params == nil {
params = &DescribeGlobalClustersInput{}
}
options := DescribeGlobalClustersPaginatorOptions{}
if params.MaxRecords != nil {
options.Limit = *params.MaxRecords
}
for _, fn := range optFns {
fn(&options)
}
return &DescribeGlobalClustersPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.Marker,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *DescribeGlobalClustersPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next DescribeGlobalClusters page.
func (p *DescribeGlobalClustersPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*DescribeGlobalClustersOutput, 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.DescribeGlobalClusters(ctx, ¶ms, 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_opDescribeGlobalClusters(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "rds",
OperationName: "DescribeGlobalClusters",
}
}
type opDescribeGlobalClustersResolveEndpointMiddleware struct {
EndpointResolver EndpointResolverV2
BuiltInResolver builtInParameterResolver
}
func (*opDescribeGlobalClustersResolveEndpointMiddleware) ID() string {
return "ResolveEndpointV2"
}
func (m *opDescribeGlobalClustersResolveEndpointMiddleware) HandleSerialize(ctx context.Context, in middleware.SerializeInput, next middleware.SerializeHandler) (
out middleware.SerializeOutput, metadata middleware.Metadata, err error,
) {
if awsmiddleware.GetRequiresLegacyEndpoints(ctx) {
return next.HandleSerialize(ctx, in)
}
req, ok := in.Request.(*smithyhttp.Request)
if !ok {
return out, metadata, fmt.Errorf("unknown transport type %T", in.Request)
}
if m.EndpointResolver == nil {
return out, metadata, fmt.Errorf("expected endpoint resolver to not be nil")
}
params := EndpointParameters{}
m.BuiltInResolver.ResolveBuiltIns(¶ms)
var resolvedEndpoint smithyendpoints.Endpoint
resolvedEndpoint, err = m.EndpointResolver.ResolveEndpoint(ctx, params)
if err != nil {
return out, metadata, fmt.Errorf("failed to resolve service endpoint, %w", err)
}
req.URL = &resolvedEndpoint.URI
for k := range resolvedEndpoint.Headers {
req.Header.Set(
k,
resolvedEndpoint.Headers.Get(k),
)
}
authSchemes, err := internalauth.GetAuthenticationSchemes(&resolvedEndpoint.Properties)
if err != nil {
var nfe *internalauth.NoAuthenticationSchemesFoundError
if errors.As(err, &nfe) {
// if no auth scheme is found, default to sigv4
signingName := "rds"
signingRegion := m.BuiltInResolver.(*builtInResolver).Region
ctx = awsmiddleware.SetSigningName(ctx, signingName)
ctx = awsmiddleware.SetSigningRegion(ctx, signingRegion)
}
var ue *internalauth.UnSupportedAuthenticationSchemeSpecifiedError
if errors.As(err, &ue) {
return out, metadata, fmt.Errorf(
"This operation requests signer version(s) %v but the client only supports %v",
ue.UnsupportedSchemes,
internalauth.SupportedSchemes,
)
}
}
for _, authScheme := range authSchemes {
switch authScheme.(type) {
case *internalauth.AuthenticationSchemeV4:
v4Scheme, _ := authScheme.(*internalauth.AuthenticationSchemeV4)
var signingName, signingRegion string
if v4Scheme.SigningName == nil {
signingName = "rds"
} else {
signingName = *v4Scheme.SigningName
}
if v4Scheme.SigningRegion == nil {
signingRegion = m.BuiltInResolver.(*builtInResolver).Region
} else {
signingRegion = *v4Scheme.SigningRegion
}
if v4Scheme.DisableDoubleEncoding != nil {
// The signer sets an equivalent value at client initialization time.
// Setting this context value will cause the signer to extract it
// and override the value set at client initialization time.
ctx = internalauth.SetDisableDoubleEncoding(ctx, *v4Scheme.DisableDoubleEncoding)
}
ctx = awsmiddleware.SetSigningName(ctx, signingName)
ctx = awsmiddleware.SetSigningRegion(ctx, signingRegion)
break
case *internalauth.AuthenticationSchemeV4A:
v4aScheme, _ := authScheme.(*internalauth.AuthenticationSchemeV4A)
if v4aScheme.SigningName == nil {
v4aScheme.SigningName = aws.String("rds")
}
if v4aScheme.DisableDoubleEncoding != nil {
// The signer sets an equivalent value at client initialization time.
// Setting this context value will cause the signer to extract it
// and override the value set at client initialization time.
ctx = internalauth.SetDisableDoubleEncoding(ctx, *v4aScheme.DisableDoubleEncoding)
}
ctx = awsmiddleware.SetSigningName(ctx, *v4aScheme.SigningName)
ctx = awsmiddleware.SetSigningRegion(ctx, v4aScheme.SigningRegionSet[0])
break
case *internalauth.AuthenticationSchemeNone:
break
}
}
return next.HandleSerialize(ctx, in)
}
func addDescribeGlobalClustersResolveEndpointMiddleware(stack *middleware.Stack, options Options) error {
return stack.Serialize.Insert(&opDescribeGlobalClustersResolveEndpointMiddleware{
EndpointResolver: options.EndpointResolverV2,
BuiltInResolver: &builtInResolver{
Region: options.Region,
UseDualStack: options.EndpointOptions.UseDualStackEndpoint,
UseFIPS: options.EndpointOptions.UseFIPSEndpoint,
Endpoint: options.BaseEndpoint,
},
}, "ResolveEndpoint", middleware.After)
}