Created
January 4, 2021 02:10
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The map[string]interface implementing XMLMarshaller
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| package xml_marshallable_map | |
| // XMLMarshallableMap contains nestable data and implements | |
| // XMLMarshaller. The actual type of interface{} part must be string or | |
| // map[string]interface{}. The fields are sorted in alphabetical | |
| // order and encoded. | |
| type XMLMarshallableMap map[string]interface{} | |
| func (m XMLMarshallableMap) MarshalXML(e *xml.Encoder, start xml.StartElement) error { | |
| if err := e.EncodeToken(start); err != nil { | |
| return err | |
| } | |
| var keys []string | |
| for k := range m { | |
| keys = append(keys, k) | |
| } | |
| sort.Strings(keys) | |
| for _, k := range keys { | |
| childStart := xml.StartElement{Name: xml.Name{Local: k}} | |
| switch v := m[k].(type) { | |
| case string: | |
| if err := e.EncodeElement(v, childStart); err != nil { | |
| return err | |
| } | |
| case map[string]interface{}: | |
| if err := XMLMarshallableMap(v).MarshalXML(e, childStart); err != nil { | |
| return err | |
| } | |
| default: | |
| panic(fmt.Sprintf("the type of value of parameters must be string or map[string]interface{}, but %+v", v)) | |
| } | |
| } | |
| return e.EncodeToken(start.End()) | |
| } |
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