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api_op_ListStreamProcessors.go
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api_op_ListStreamProcessors.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package rekognition
import (
"context"
"fmt"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/aws-sdk-go-v2/service/rekognition/types"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Gets a list of stream processors that you have created with CreateStreamProcessor.
func (c *Client) ListStreamProcessors(ctx context.Context, params *ListStreamProcessorsInput, optFns ...func(*Options)) (*ListStreamProcessorsOutput, error) {
if params == nil {
params = &ListStreamProcessorsInput{}
}
result, metadata, err := c.invokeOperation(ctx, "ListStreamProcessors", params, optFns, c.addOperationListStreamProcessorsMiddlewares)
if err != nil {
return nil, err
}
out := result.(*ListStreamProcessorsOutput)
out.ResultMetadata = metadata
return out, nil
}
type ListStreamProcessorsInput struct {
// Maximum number of stream processors you want Amazon Rekognition Video to return
// in the response. The default is 1000.
MaxResults *int32
// If the previous response was incomplete (because there are more stream
// processors to retrieve), Amazon Rekognition Video returns a pagination token in
// the response. You can use this pagination token to retrieve the next set of
// stream processors.
NextToken *string
noSmithyDocumentSerde
}
type ListStreamProcessorsOutput struct {
// If the response is truncated, Amazon Rekognition Video returns this token that
// you can use in the subsequent request to retrieve the next set of stream
// processors.
NextToken *string
// List of stream processors that you have created.
StreamProcessors []types.StreamProcessor
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationListStreamProcessorsMiddlewares(stack *middleware.Stack, options Options) (err error) {
if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
return err
}
err = stack.Serialize.Add(&awsAwsjson11_serializeOpListStreamProcessors{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpListStreamProcessors{}, middleware.After)
if err != nil {
return err
}
if err := addProtocolFinalizerMiddlewares(stack, options, "ListStreamProcessors"); err != nil {
return fmt.Errorf("add protocol finalizers: %v", err)
}
if err = addlegacyEndpointContextSetter(stack, options); err != nil {
return err
}
if err = addSetLoggerMiddleware(stack, options); err != nil {
return err
}
if err = addClientRequestID(stack); err != nil {
return err
}
if err = addComputeContentLength(stack); err != nil {
return err
}
if err = addResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = addComputePayloadSHA256(stack); err != nil {
return err
}
if err = addRetry(stack, options); err != nil {
return err
}
if err = addRawResponseToMetadata(stack); err != nil {
return err
}
if err = 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 = addSetLegacyContextSigningOptionsMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListStreamProcessors(options.Region), middleware.Before); err != nil {
return err
}
if err = 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 = addDisableHTTPSMiddleware(stack, options); err != nil {
return err
}
return nil
}
// ListStreamProcessorsAPIClient is a client that implements the
// ListStreamProcessors operation.
type ListStreamProcessorsAPIClient interface {
ListStreamProcessors(context.Context, *ListStreamProcessorsInput, ...func(*Options)) (*ListStreamProcessorsOutput, error)
}
var _ ListStreamProcessorsAPIClient = (*Client)(nil)
// ListStreamProcessorsPaginatorOptions is the paginator options for
// ListStreamProcessors
type ListStreamProcessorsPaginatorOptions struct {
// Maximum number of stream processors you want Amazon Rekognition Video to return
// in the response. The default is 1000.
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
}
// ListStreamProcessorsPaginator is a paginator for ListStreamProcessors
type ListStreamProcessorsPaginator struct {
options ListStreamProcessorsPaginatorOptions
client ListStreamProcessorsAPIClient
params *ListStreamProcessorsInput
nextToken *string
firstPage bool
}
// NewListStreamProcessorsPaginator returns a new ListStreamProcessorsPaginator
func NewListStreamProcessorsPaginator(client ListStreamProcessorsAPIClient, params *ListStreamProcessorsInput, optFns ...func(*ListStreamProcessorsPaginatorOptions)) *ListStreamProcessorsPaginator {
if params == nil {
params = &ListStreamProcessorsInput{}
}
options := ListStreamProcessorsPaginatorOptions{}
if params.MaxResults != nil {
options.Limit = *params.MaxResults
}
for _, fn := range optFns {
fn(&options)
}
return &ListStreamProcessorsPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.NextToken,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *ListStreamProcessorsPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next ListStreamProcessors page.
func (p *ListStreamProcessorsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListStreamProcessorsOutput, error) {
if !p.HasMorePages() {
return nil, fmt.Errorf("no more pages available")
}
params := *p.params
params.NextToken = p.nextToken
var limit *int32
if p.options.Limit > 0 {
limit = &p.options.Limit
}
params.MaxResults = limit
result, err := p.client.ListStreamProcessors(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_opListStreamProcessors(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
OperationName: "ListStreamProcessors",
}
}