1// Code generated by smithy-go-codegen DO NOT EDIT. 2 3package comprehend 4 5import ( 6 "context" 7 "fmt" 8 awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware" 9 "github.com/aws/aws-sdk-go-v2/aws/signer/v4" 10 "github.com/aws/aws-sdk-go-v2/service/comprehend/types" 11 "github.com/aws/smithy-go/middleware" 12 smithyhttp "github.com/aws/smithy-go/transport/http" 13) 14 15// Gets a list of the properties of all entity recognizers that you created, 16// including recognizers currently in training. Allows you to filter the list of 17// recognizers based on criteria such as status and submission time. This call 18// returns up to 500 entity recognizers in the list, with a default number of 100 19// recognizers in the list. The results of this list are not in any particular 20// order. Please get the list and sort locally if needed. 21func (c *Client) ListEntityRecognizers(ctx context.Context, params *ListEntityRecognizersInput, optFns ...func(*Options)) (*ListEntityRecognizersOutput, error) { 22 if params == nil { 23 params = &ListEntityRecognizersInput{} 24 } 25 26 result, metadata, err := c.invokeOperation(ctx, "ListEntityRecognizers", params, optFns, addOperationListEntityRecognizersMiddlewares) 27 if err != nil { 28 return nil, err 29 } 30 31 out := result.(*ListEntityRecognizersOutput) 32 out.ResultMetadata = metadata 33 return out, nil 34} 35 36type ListEntityRecognizersInput struct { 37 38 // Filters the list of entities returned. You can filter on Status, 39 // SubmitTimeBefore, or SubmitTimeAfter. You can only set one filter at a time. 40 Filter *types.EntityRecognizerFilter 41 42 // The maximum number of results to return on each page. The default is 100. 43 MaxResults *int32 44 45 // Identifies the next page of results to return. 46 NextToken *string 47} 48 49type ListEntityRecognizersOutput struct { 50 51 // The list of properties of an entity recognizer. 52 EntityRecognizerPropertiesList []types.EntityRecognizerProperties 53 54 // Identifies the next page of results to return. 55 NextToken *string 56 57 // Metadata pertaining to the operation's result. 58 ResultMetadata middleware.Metadata 59} 60 61func addOperationListEntityRecognizersMiddlewares(stack *middleware.Stack, options Options) (err error) { 62 err = stack.Serialize.Add(&awsAwsjson11_serializeOpListEntityRecognizers{}, middleware.After) 63 if err != nil { 64 return err 65 } 66 err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpListEntityRecognizers{}, middleware.After) 67 if err != nil { 68 return err 69 } 70 if err = addSetLoggerMiddleware(stack, options); err != nil { 71 return err 72 } 73 if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil { 74 return err 75 } 76 if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil { 77 return err 78 } 79 if err = addResolveEndpointMiddleware(stack, options); err != nil { 80 return err 81 } 82 if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil { 83 return err 84 } 85 if err = addRetryMiddlewares(stack, options); err != nil { 86 return err 87 } 88 if err = addHTTPSignerV4Middleware(stack, options); err != nil { 89 return err 90 } 91 if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil { 92 return err 93 } 94 if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil { 95 return err 96 } 97 if err = addClientUserAgent(stack); err != nil { 98 return err 99 } 100 if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil { 101 return err 102 } 103 if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil { 104 return err 105 } 106 if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListEntityRecognizers(options.Region), middleware.Before); err != nil { 107 return err 108 } 109 if err = addRequestIDRetrieverMiddleware(stack); err != nil { 110 return err 111 } 112 if err = addResponseErrorMiddleware(stack); err != nil { 113 return err 114 } 115 if err = addRequestResponseLogging(stack, options); err != nil { 116 return err 117 } 118 return nil 119} 120 121// ListEntityRecognizersAPIClient is a client that implements the 122// ListEntityRecognizers operation. 123type ListEntityRecognizersAPIClient interface { 124 ListEntityRecognizers(context.Context, *ListEntityRecognizersInput, ...func(*Options)) (*ListEntityRecognizersOutput, error) 125} 126 127var _ ListEntityRecognizersAPIClient = (*Client)(nil) 128 129// ListEntityRecognizersPaginatorOptions is the paginator options for 130// ListEntityRecognizers 131type ListEntityRecognizersPaginatorOptions struct { 132 // The maximum number of results to return on each page. The default is 100. 133 Limit int32 134 135 // Set to true if pagination should stop if the service returns a pagination token 136 // that matches the most recent token provided to the service. 137 StopOnDuplicateToken bool 138} 139 140// ListEntityRecognizersPaginator is a paginator for ListEntityRecognizers 141type ListEntityRecognizersPaginator struct { 142 options ListEntityRecognizersPaginatorOptions 143 client ListEntityRecognizersAPIClient 144 params *ListEntityRecognizersInput 145 nextToken *string 146 firstPage bool 147} 148 149// NewListEntityRecognizersPaginator returns a new ListEntityRecognizersPaginator 150func NewListEntityRecognizersPaginator(client ListEntityRecognizersAPIClient, params *ListEntityRecognizersInput, optFns ...func(*ListEntityRecognizersPaginatorOptions)) *ListEntityRecognizersPaginator { 151 if params == nil { 152 params = &ListEntityRecognizersInput{} 153 } 154 155 options := ListEntityRecognizersPaginatorOptions{} 156 if params.MaxResults != nil { 157 options.Limit = *params.MaxResults 158 } 159 160 for _, fn := range optFns { 161 fn(&options) 162 } 163 164 return &ListEntityRecognizersPaginator{ 165 options: options, 166 client: client, 167 params: params, 168 firstPage: true, 169 } 170} 171 172// HasMorePages returns a boolean indicating whether more pages are available 173func (p *ListEntityRecognizersPaginator) HasMorePages() bool { 174 return p.firstPage || p.nextToken != nil 175} 176 177// NextPage retrieves the next ListEntityRecognizers page. 178func (p *ListEntityRecognizersPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListEntityRecognizersOutput, error) { 179 if !p.HasMorePages() { 180 return nil, fmt.Errorf("no more pages available") 181 } 182 183 params := *p.params 184 params.NextToken = p.nextToken 185 186 var limit *int32 187 if p.options.Limit > 0 { 188 limit = &p.options.Limit 189 } 190 params.MaxResults = limit 191 192 result, err := p.client.ListEntityRecognizers(ctx, ¶ms, optFns...) 193 if err != nil { 194 return nil, err 195 } 196 p.firstPage = false 197 198 prevToken := p.nextToken 199 p.nextToken = result.NextToken 200 201 if p.options.StopOnDuplicateToken && prevToken != nil && p.nextToken != nil && *prevToken == *p.nextToken { 202 p.nextToken = nil 203 } 204 205 return result, nil 206} 207 208func newServiceMetadataMiddleware_opListEntityRecognizers(region string) *awsmiddleware.RegisterServiceMetadata { 209 return &awsmiddleware.RegisterServiceMetadata{ 210 Region: region, 211 ServiceID: ServiceID, 212 SigningName: "comprehend", 213 OperationName: "ListEntityRecognizers", 214 } 215} 216