/
api_op_ListDatasetEntries.go
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/
api_op_ListDatasetEntries.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package rekognition
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"
smithyendpoints "github.com/aws/smithy-go/endpoints"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Lists the entries (images) within a dataset. An entry is a JSON Line that
// contains the information for a single image, including the image location,
// assigned labels, and object location bounding boxes. For more information, see
// Creating a manifest file (https://docs.aws.amazon.com/rekognition/latest/customlabels-dg/md-manifest-files.html)
// . JSON Lines in the response include information about non-terminal errors found
// in the dataset. Non terminal errors are reported in errors lists within each
// JSON Line. The same information is reported in the training and testing
// validation result manifests that Amazon Rekognition Custom Labels creates during
// model training. You can filter the response in variety of ways, such as choosing
// which labels to return and returning JSON Lines created after a specific date.
// This operation requires permissions to perform the
// rekognition:ListDatasetEntries action.
func (c *Client) ListDatasetEntries(ctx context.Context, params *ListDatasetEntriesInput, optFns ...func(*Options)) (*ListDatasetEntriesOutput, error) {
if params == nil {
params = &ListDatasetEntriesInput{}
}
result, metadata, err := c.invokeOperation(ctx, "ListDatasetEntries", params, optFns, c.addOperationListDatasetEntriesMiddlewares)
if err != nil {
return nil, err
}
out := result.(*ListDatasetEntriesOutput)
out.ResultMetadata = metadata
return out, nil
}
type ListDatasetEntriesInput struct {
// The Amazon Resource Name (ARN) for the dataset that you want to use.
//
// This member is required.
DatasetArn *string
// Specifies a label filter for the response. The response includes an entry only
// if one or more of the labels in ContainsLabels exist in the entry.
ContainsLabels []string
// Specifies an error filter for the response. Specify True to only include
// entries that have errors.
HasErrors *bool
// Specify true to get only the JSON Lines where the image is labeled. Specify
// false to get only the JSON Lines where the image isn't labeled. If you don't
// specify Labeled , ListDatasetEntries returns JSON Lines for labeled and
// unlabeled images.
Labeled *bool
// The maximum number of results to return per paginated call. The largest value
// you can specify is 100. If you specify a value greater than 100, a
// ValidationException error occurs. The default value is 100.
MaxResults *int32
// If the previous response was incomplete (because there is more results to
// retrieve), Amazon Rekognition Custom Labels returns a pagination token in the
// response. You can use this pagination token to retrieve the next set of results.
NextToken *string
// If specified, ListDatasetEntries only returns JSON Lines where the value of
// SourceRefContains is part of the source-ref field. The source-ref field
// contains the Amazon S3 location of the image. You can use SouceRefContains for
// tasks such as getting the JSON Line for a single image, or gettting JSON Lines
// for all images within a specific folder.
SourceRefContains *string
noSmithyDocumentSerde
}
type ListDatasetEntriesOutput struct {
// A list of entries (images) in the dataset.
DatasetEntries []string
// If the previous response was incomplete (because there is more results to
// retrieve), Amazon Rekognition Custom Labels returns a pagination token in the
// response. You can use this pagination token to retrieve the next set of results.
NextToken *string
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationListDatasetEntriesMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsAwsjson11_serializeOpListDatasetEntries{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpListDatasetEntries{}, 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 = addListDatasetEntriesResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = addOpListDatasetEntriesValidationMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListDatasetEntries(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
}
// ListDatasetEntriesAPIClient is a client that implements the ListDatasetEntries
// operation.
type ListDatasetEntriesAPIClient interface {
ListDatasetEntries(context.Context, *ListDatasetEntriesInput, ...func(*Options)) (*ListDatasetEntriesOutput, error)
}
var _ ListDatasetEntriesAPIClient = (*Client)(nil)
// ListDatasetEntriesPaginatorOptions is the paginator options for
// ListDatasetEntries
type ListDatasetEntriesPaginatorOptions struct {
// The maximum number of results to return per paginated call. The largest value
// you can specify is 100. If you specify a value greater than 100, a
// ValidationException error occurs. The default value is 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
}
// ListDatasetEntriesPaginator is a paginator for ListDatasetEntries
type ListDatasetEntriesPaginator struct {
options ListDatasetEntriesPaginatorOptions
client ListDatasetEntriesAPIClient
params *ListDatasetEntriesInput
nextToken *string
firstPage bool
}
// NewListDatasetEntriesPaginator returns a new ListDatasetEntriesPaginator
func NewListDatasetEntriesPaginator(client ListDatasetEntriesAPIClient, params *ListDatasetEntriesInput, optFns ...func(*ListDatasetEntriesPaginatorOptions)) *ListDatasetEntriesPaginator {
if params == nil {
params = &ListDatasetEntriesInput{}
}
options := ListDatasetEntriesPaginatorOptions{}
if params.MaxResults != nil {
options.Limit = *params.MaxResults
}
for _, fn := range optFns {
fn(&options)
}
return &ListDatasetEntriesPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.NextToken,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *ListDatasetEntriesPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next ListDatasetEntries page.
func (p *ListDatasetEntriesPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListDatasetEntriesOutput, 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.ListDatasetEntries(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_opListDatasetEntries(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "rekognition",
OperationName: "ListDatasetEntries",
}
}
type opListDatasetEntriesResolveEndpointMiddleware struct {
EndpointResolver EndpointResolverV2
BuiltInResolver builtInParameterResolver
}
func (*opListDatasetEntriesResolveEndpointMiddleware) ID() string {
return "ResolveEndpointV2"
}
func (m *opListDatasetEntriesResolveEndpointMiddleware) 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 := "rekognition"
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 = "rekognition"
} 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("rekognition")
}
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 addListDatasetEntriesResolveEndpointMiddleware(stack *middleware.Stack, options Options) error {
return stack.Serialize.Insert(&opListDatasetEntriesResolveEndpointMiddleware{
EndpointResolver: options.EndpointResolverV2,
BuiltInResolver: &builtInResolver{
Region: options.Region,
UseDualStack: options.EndpointOptions.UseDualStackEndpoint,
UseFIPS: options.EndpointOptions.UseFIPSEndpoint,
Endpoint: options.BaseEndpoint,
},
}, "ResolveEndpoint", middleware.After)
}