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