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 document classifiers that you have created. 16func (c *Client) ListDocumentClassifiers(ctx context.Context, params *ListDocumentClassifiersInput, optFns ...func(*Options)) (*ListDocumentClassifiersOutput, error) { 17 if params == nil { 18 params = &ListDocumentClassifiersInput{} 19 } 20 21 result, metadata, err := c.invokeOperation(ctx, "ListDocumentClassifiers", params, optFns, addOperationListDocumentClassifiersMiddlewares) 22 if err != nil { 23 return nil, err 24 } 25 26 out := result.(*ListDocumentClassifiersOutput) 27 out.ResultMetadata = metadata 28 return out, nil 29} 30 31type ListDocumentClassifiersInput struct { 32 33 // Filters the jobs that are returned. You can filter jobs on their name, status, 34 // or the date and time that they were submitted. You can only set one filter at a 35 // time. 36 Filter *types.DocumentClassifierFilter 37 38 // The maximum number of results to return in each page. The default is 100. 39 MaxResults *int32 40 41 // Identifies the next page of results to return. 42 NextToken *string 43} 44 45type ListDocumentClassifiersOutput struct { 46 47 // A list containing the properties of each job returned. 48 DocumentClassifierPropertiesList []types.DocumentClassifierProperties 49 50 // Identifies the next page of results to return. 51 NextToken *string 52 53 // Metadata pertaining to the operation's result. 54 ResultMetadata middleware.Metadata 55} 56 57func addOperationListDocumentClassifiersMiddlewares(stack *middleware.Stack, options Options) (err error) { 58 err = stack.Serialize.Add(&awsAwsjson11_serializeOpListDocumentClassifiers{}, middleware.After) 59 if err != nil { 60 return err 61 } 62 err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpListDocumentClassifiers{}, middleware.After) 63 if err != nil { 64 return err 65 } 66 if err = addSetLoggerMiddleware(stack, options); err != nil { 67 return err 68 } 69 if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil { 70 return err 71 } 72 if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil { 73 return err 74 } 75 if err = addResolveEndpointMiddleware(stack, options); err != nil { 76 return err 77 } 78 if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil { 79 return err 80 } 81 if err = addRetryMiddlewares(stack, options); err != nil { 82 return err 83 } 84 if err = addHTTPSignerV4Middleware(stack, options); err != nil { 85 return err 86 } 87 if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil { 88 return err 89 } 90 if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil { 91 return err 92 } 93 if err = addClientUserAgent(stack); err != nil { 94 return err 95 } 96 if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil { 97 return err 98 } 99 if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil { 100 return err 101 } 102 if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListDocumentClassifiers(options.Region), middleware.Before); err != nil { 103 return err 104 } 105 if err = addRequestIDRetrieverMiddleware(stack); err != nil { 106 return err 107 } 108 if err = addResponseErrorMiddleware(stack); err != nil { 109 return err 110 } 111 if err = addRequestResponseLogging(stack, options); err != nil { 112 return err 113 } 114 return nil 115} 116 117// ListDocumentClassifiersAPIClient is a client that implements the 118// ListDocumentClassifiers operation. 119type ListDocumentClassifiersAPIClient interface { 120 ListDocumentClassifiers(context.Context, *ListDocumentClassifiersInput, ...func(*Options)) (*ListDocumentClassifiersOutput, error) 121} 122 123var _ ListDocumentClassifiersAPIClient = (*Client)(nil) 124 125// ListDocumentClassifiersPaginatorOptions is the paginator options for 126// ListDocumentClassifiers 127type ListDocumentClassifiersPaginatorOptions struct { 128 // The maximum number of results to return in each page. The default is 100. 129 Limit int32 130 131 // Set to true if pagination should stop if the service returns a pagination token 132 // that matches the most recent token provided to the service. 133 StopOnDuplicateToken bool 134} 135 136// ListDocumentClassifiersPaginator is a paginator for ListDocumentClassifiers 137type ListDocumentClassifiersPaginator struct { 138 options ListDocumentClassifiersPaginatorOptions 139 client ListDocumentClassifiersAPIClient 140 params *ListDocumentClassifiersInput 141 nextToken *string 142 firstPage bool 143} 144 145// NewListDocumentClassifiersPaginator returns a new 146// ListDocumentClassifiersPaginator 147func NewListDocumentClassifiersPaginator(client ListDocumentClassifiersAPIClient, params *ListDocumentClassifiersInput, optFns ...func(*ListDocumentClassifiersPaginatorOptions)) *ListDocumentClassifiersPaginator { 148 if params == nil { 149 params = &ListDocumentClassifiersInput{} 150 } 151 152 options := ListDocumentClassifiersPaginatorOptions{} 153 if params.MaxResults != nil { 154 options.Limit = *params.MaxResults 155 } 156 157 for _, fn := range optFns { 158 fn(&options) 159 } 160 161 return &ListDocumentClassifiersPaginator{ 162 options: options, 163 client: client, 164 params: params, 165 firstPage: true, 166 } 167} 168 169// HasMorePages returns a boolean indicating whether more pages are available 170func (p *ListDocumentClassifiersPaginator) HasMorePages() bool { 171 return p.firstPage || p.nextToken != nil 172} 173 174// NextPage retrieves the next ListDocumentClassifiers page. 175func (p *ListDocumentClassifiersPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListDocumentClassifiersOutput, error) { 176 if !p.HasMorePages() { 177 return nil, fmt.Errorf("no more pages available") 178 } 179 180 params := *p.params 181 params.NextToken = p.nextToken 182 183 var limit *int32 184 if p.options.Limit > 0 { 185 limit = &p.options.Limit 186 } 187 params.MaxResults = limit 188 189 result, err := p.client.ListDocumentClassifiers(ctx, ¶ms, optFns...) 190 if err != nil { 191 return nil, err 192 } 193 p.firstPage = false 194 195 prevToken := p.nextToken 196 p.nextToken = result.NextToken 197 198 if p.options.StopOnDuplicateToken && prevToken != nil && p.nextToken != nil && *prevToken == *p.nextToken { 199 p.nextToken = nil 200 } 201 202 return result, nil 203} 204 205func newServiceMetadataMiddleware_opListDocumentClassifiers(region string) *awsmiddleware.RegisterServiceMetadata { 206 return &awsmiddleware.RegisterServiceMetadata{ 207 Region: region, 208 ServiceID: ServiceID, 209 SigningName: "comprehend", 210 OperationName: "ListDocumentClassifiers", 211 } 212} 213