/
custom_fields.go
65 lines (53 loc) · 1.3 KB
/
custom_fields.go
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package braintree
import (
"encoding/xml"
"errors"
"fmt"
)
// CustomFields contains braintree custom fields as a map
type CustomFields map[string]string
// MarshalXML encodes CustomFields into xml
func (cf CustomFields) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
tokens := []xml.Token{start}
for key, value := range cf {
start := xml.StartElement{Name: xml.Name{Local: key}}
data := xml.CharData(value)
end := xml.EndElement{Name: xml.Name{Local: key}}
tokens = append(tokens, start, data, end)
}
tokens = append(tokens, xml.EndElement{Name: start.Name})
for _, token := range tokens {
if err := e.EncodeToken(token); err != nil {
return err
}
}
return e.Flush()
}
// UnmarshalXML decodes XML into CustomFields
func (cf *CustomFields) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
result := map[string]string{}
key := ""
value := ""
for {
token, err := d.Token()
if err != nil {
return err
}
switch token := token.(type) {
case xml.StartElement:
key = token.Name.Local
case xml.CharData:
value = fmt.Sprintf("%s", token)
case xml.EndElement:
switch token.Name.Local {
case key:
result[key] = value
case start.Name.Local:
*cf = result
return nil
default:
return errors.New("unexpected end element")
}
}
}
}