1package attributevalue 2 3import ( 4 "fmt" 5 6 ddb "github.com/aws/aws-sdk-go-v2/service/dynamodb/types" 7 streams "github.com/aws/aws-sdk-go-v2/service/dynamodbstreams/types" 8) 9 10// FromDynamoDBStreamsMap converts a map of Amazon DynamoDB Streams 11// AttributeValues, and all nested members. 12func FromDynamoDBStreamsMap(from map[string]streams.AttributeValue) (to map[string]ddb.AttributeValue, err error) { 13 to = make(map[string]ddb.AttributeValue, len(from)) 14 for field, value := range from { 15 to[field], err = FromDynamoDBStreams(value) 16 if err != nil { 17 return nil, err 18 } 19 } 20 21 return to, nil 22} 23 24// FromDynamoDBStreamsList converts a slice of Amazon DynamoDB Streams 25// AttributeValues, and all nested members. 26func FromDynamoDBStreamsList(from []streams.AttributeValue) (to []ddb.AttributeValue, err error) { 27 to = make([]ddb.AttributeValue, len(from)) 28 for i := 0; i < len(from); i++ { 29 to[i], err = FromDynamoDBStreams(from[i]) 30 if err != nil { 31 return nil, err 32 } 33 } 34 35 return to, nil 36} 37 38// FromDynamoDBStreams converts an Amazon DynamoDB Streams AttributeValue, and 39// all nested members. 40func FromDynamoDBStreams(from streams.AttributeValue) (ddb.AttributeValue, error) { 41 switch tv := from.(type) { 42 case *streams.AttributeValueMemberNULL: 43 return &ddb.AttributeValueMemberNULL{Value: tv.Value}, nil 44 45 case *streams.AttributeValueMemberBOOL: 46 return &ddb.AttributeValueMemberBOOL{Value: tv.Value}, nil 47 48 case *streams.AttributeValueMemberB: 49 return &ddb.AttributeValueMemberB{Value: tv.Value}, nil 50 51 case *streams.AttributeValueMemberBS: 52 bs := make([][]byte, len(tv.Value)) 53 for i := 0; i < len(tv.Value); i++ { 54 bs[i] = append([]byte{}, tv.Value[i]...) 55 } 56 return &ddb.AttributeValueMemberBS{Value: bs}, nil 57 58 case *streams.AttributeValueMemberN: 59 return &ddb.AttributeValueMemberN{Value: tv.Value}, nil 60 61 case *streams.AttributeValueMemberNS: 62 return &ddb.AttributeValueMemberNS{Value: append([]string{}, tv.Value...)}, nil 63 64 case *streams.AttributeValueMemberS: 65 return &ddb.AttributeValueMemberS{Value: tv.Value}, nil 66 67 case *streams.AttributeValueMemberSS: 68 return &ddb.AttributeValueMemberSS{Value: append([]string{}, tv.Value...)}, nil 69 70 case *streams.AttributeValueMemberL: 71 values, err := FromDynamoDBStreamsList(tv.Value) 72 if err != nil { 73 return nil, err 74 } 75 return &ddb.AttributeValueMemberL{Value: values}, nil 76 77 case *streams.AttributeValueMemberM: 78 values, err := FromDynamoDBStreamsMap(tv.Value) 79 if err != nil { 80 return nil, err 81 } 82 return &ddb.AttributeValueMemberM{Value: values}, nil 83 84 default: 85 return nil, fmt.Errorf("unknown AttributeValue union member, %T", from) 86 } 87} 88