-
Notifications
You must be signed in to change notification settings - Fork 1
/
inner_elemenets.go
103 lines (80 loc) · 2.04 KB
/
inner_elemenets.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
package xtream
import "encoding/xml"
type InnerElements interface {
Elements() []Element
AddElement(Element)
Registrable
}
type Registrable interface {
SetFactory(Factory)
SetXMLName(*xml.Name)
}
type Element interface{}
type InnerXML struct {
XMLName xml.Name
XML string `xml:",innerxml"`
}
// Implementation of InnerElements interface, which (un)marshals it's elements recursively
type elements struct {
// Name of the containing XML element, set in the constructor
outer *xml.Name
// A factory which can be used to unmarshal inner elements of this element
reg Factory
// Inner elements of this element
elements []Element
// Raw XML (including XMLName) of inner elements that may not be unmarshalled
rawXML []*InnerXML
}
func NewElements() *elements {
return &elements{
elements: make([]Element, 0),
rawXML: make([]*InnerXML, 0),
}
}
func (es *elements) SetXMLName(outer *xml.Name) {
es.outer = outer
}
func (es *elements) SetFactory(reg Factory) {
es.reg = reg
}
func (es *elements) AddElement(e Element) {
es.elements = append(es.elements, e)
}
func (es *elements) Elements() []Element {
return es.elements
}
func (es *elements) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
elementObject, err := es.decodeElement(d, &start)
if err != nil {
return err
}
if innerXML, ok := elementObject.(*InnerXML); ok {
es.rawXML = append(es.rawXML, innerXML)
} else {
es.AddElement(elementObject)
}
return nil
}
// Marshal all the elements and raw XML
func (es *elements) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
if err := e.Encode(es.elements); err != nil {
return err
}
return e.Encode(es.rawXML)
}
func (es *elements) decodeElement(d *xml.Decoder, start *xml.StartElement) (interface{}, error) {
if es.reg == nil {
es.reg = NodeFactory
}
if es.outer == nil {
es.outer = &xml.Name{}
}
element := es.reg.Get(es.outer, &start.Name)
if element == nil {
element = &InnerXML{}
}
if err := d.DecodeElement(element, start); err != nil {
return nil, err
}
return element, nil
}