/
api_op_DescribeEventSubscriptions.go
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/
api_op_DescribeEventSubscriptions.go
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// 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"
)
// Lists descriptions of all the Amazon Redshift event notification subscriptions
// for a customer account. If you specify a subscription name, lists the
// description for that subscription. If you specify both tag keys and tag values
// in the same request, Amazon Redshift returns all event notification
// subscriptions that match any combination of the specified keys and values. For
// example, if you have owner and environment for tag keys, and admin and test for
// tag values, all subscriptions that have any combination of those values are
// returned. If both tag keys and values are omitted from the request,
// subscriptions are returned regardless of whether they have tag keys or values
// associated with them.
func (c *Client) DescribeEventSubscriptions(ctx context.Context, params *DescribeEventSubscriptionsInput, optFns ...func(*Options)) (*DescribeEventSubscriptionsOutput, error) {
if params == nil {
params = &DescribeEventSubscriptionsInput{}
}
result, metadata, err := c.invokeOperation(ctx, "DescribeEventSubscriptions", params, optFns, c.addOperationDescribeEventSubscriptionsMiddlewares)
if err != nil {
return nil, err
}
out := result.(*DescribeEventSubscriptionsOutput)
out.ResultMetadata = metadata
return out, nil
}
type DescribeEventSubscriptionsInput struct {
// An optional parameter that specifies the starting point to return a set of
// response records. When the results of a DescribeEventSubscriptions 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: 100
// Constraints: minimum 20, maximum 100.
MaxRecords *int32
// The name of the Amazon Redshift event notification subscription to be described.
SubscriptionName *string
// A tag key or keys for which you want to return all matching event notification
// subscriptions that are associated with the specified key or keys. For example,
// suppose that you have subscriptions that are tagged with keys called owner and
// environment. If you specify both of these tag keys in the request, Amazon
// Redshift returns a response with the subscriptions that have either or both of
// these tag keys associated with them.
TagKeys []string
// A tag value or values for which you want to return all matching event
// notification subscriptions that are associated with the specified tag value or
// values. For example, suppose that you have subscriptions that are tagged with
// values called admin and test. If you specify both of these tag values in the
// request, Amazon Redshift returns a response with the subscriptions that have
// either or both of these tag values associated with them.
TagValues []string
noSmithyDocumentSerde
}
type DescribeEventSubscriptionsOutput struct {
// A list of event subscriptions.
EventSubscriptionsList []types.EventSubscription
// 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
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationDescribeEventSubscriptionsMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsAwsquery_serializeOpDescribeEventSubscriptions{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsquery_deserializeOpDescribeEventSubscriptions{}, 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_opDescribeEventSubscriptions(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
}
// DescribeEventSubscriptionsAPIClient is a client that implements the
// DescribeEventSubscriptions operation.
type DescribeEventSubscriptionsAPIClient interface {
DescribeEventSubscriptions(context.Context, *DescribeEventSubscriptionsInput, ...func(*Options)) (*DescribeEventSubscriptionsOutput, error)
}
var _ DescribeEventSubscriptionsAPIClient = (*Client)(nil)
// DescribeEventSubscriptionsPaginatorOptions is the paginator options for
// DescribeEventSubscriptions
type DescribeEventSubscriptionsPaginatorOptions 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: 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
}
// DescribeEventSubscriptionsPaginator is a paginator for
// DescribeEventSubscriptions
type DescribeEventSubscriptionsPaginator struct {
options DescribeEventSubscriptionsPaginatorOptions
client DescribeEventSubscriptionsAPIClient
params *DescribeEventSubscriptionsInput
nextToken *string
firstPage bool
}
// NewDescribeEventSubscriptionsPaginator returns a new
// DescribeEventSubscriptionsPaginator
func NewDescribeEventSubscriptionsPaginator(client DescribeEventSubscriptionsAPIClient, params *DescribeEventSubscriptionsInput, optFns ...func(*DescribeEventSubscriptionsPaginatorOptions)) *DescribeEventSubscriptionsPaginator {
if params == nil {
params = &DescribeEventSubscriptionsInput{}
}
options := DescribeEventSubscriptionsPaginatorOptions{}
if params.MaxRecords != nil {
options.Limit = *params.MaxRecords
}
for _, fn := range optFns {
fn(&options)
}
return &DescribeEventSubscriptionsPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.Marker,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *DescribeEventSubscriptionsPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next DescribeEventSubscriptions page.
func (p *DescribeEventSubscriptionsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*DescribeEventSubscriptionsOutput, 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.DescribeEventSubscriptions(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_opDescribeEventSubscriptions(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "redshift",
OperationName: "DescribeEventSubscriptions",
}
}