87 lines
2.6 KiB
Go
87 lines
2.6 KiB
Go
package attributevalue
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import (
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"fmt"
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ddb "github.com/aws/aws-sdk-go-v2/service/dynamodb/types"
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streams "github.com/aws/aws-sdk-go-v2/service/dynamodbstreams/types"
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)
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// FromDynamoDBStreamsMap converts a map of Amazon DynamoDB Streams
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// AttributeValues, and all nested members.
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func FromDynamoDBStreamsMap(from map[string]streams.AttributeValue) (to map[string]ddb.AttributeValue, err error) {
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to = make(map[string]ddb.AttributeValue, len(from))
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for field, value := range from {
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to[field], err = FromDynamoDBStreams(value)
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if err != nil {
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return nil, err
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}
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}
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return to, nil
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}
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// FromDynamoDBStreamsList converts a slice of Amazon DynamoDB Streams
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// AttributeValues, and all nested members.
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func FromDynamoDBStreamsList(from []streams.AttributeValue) (to []ddb.AttributeValue, err error) {
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to = make([]ddb.AttributeValue, len(from))
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for i := 0; i < len(from); i++ {
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to[i], err = FromDynamoDBStreams(from[i])
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if err != nil {
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return nil, err
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}
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}
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return to, nil
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}
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// FromDynamoDBStreams converts an Amazon DynamoDB Streams AttributeValue, and
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// all nested members.
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func FromDynamoDBStreams(from streams.AttributeValue) (ddb.AttributeValue, error) {
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switch tv := from.(type) {
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case *streams.AttributeValueMemberNULL:
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return &ddb.AttributeValueMemberNULL{Value: tv.Value}, nil
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case *streams.AttributeValueMemberBOOL:
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return &ddb.AttributeValueMemberBOOL{Value: tv.Value}, nil
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case *streams.AttributeValueMemberB:
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return &ddb.AttributeValueMemberB{Value: tv.Value}, nil
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case *streams.AttributeValueMemberBS:
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bs := make([][]byte, len(tv.Value))
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for i := 0; i < len(tv.Value); i++ {
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bs[i] = append([]byte{}, tv.Value[i]...)
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}
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return &ddb.AttributeValueMemberBS{Value: bs}, nil
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case *streams.AttributeValueMemberN:
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return &ddb.AttributeValueMemberN{Value: tv.Value}, nil
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case *streams.AttributeValueMemberNS:
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return &ddb.AttributeValueMemberNS{Value: append([]string{}, tv.Value...)}, nil
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case *streams.AttributeValueMemberS:
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return &ddb.AttributeValueMemberS{Value: tv.Value}, nil
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case *streams.AttributeValueMemberSS:
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return &ddb.AttributeValueMemberSS{Value: append([]string{}, tv.Value...)}, nil
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case *streams.AttributeValueMemberL:
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values, err := FromDynamoDBStreamsList(tv.Value)
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if err != nil {
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return nil, err
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}
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return &ddb.AttributeValueMemberL{Value: values}, nil
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case *streams.AttributeValueMemberM:
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values, err := FromDynamoDBStreamsMap(tv.Value)
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if err != nil {
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return nil, err
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}
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return &ddb.AttributeValueMemberM{Value: values}, nil
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default:
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return nil, fmt.Errorf("unknown AttributeValue union member, %T", from)
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}
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}
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