106 lines
2.0 KiB
Go
106 lines
2.0 KiB
Go
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package response
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import (
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"fmt"
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"github.com/gin-gonic/gin/binding"
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"reflect"
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"strings"
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"sync"
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)
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const (
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_ uint8 = iota
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json
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xml
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yaml
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form
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query
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)
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//var constructor = &bindConstructor{}
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type bindConstructor struct {
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cache map[string][]uint8
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mux sync.Mutex
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}
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func (e *bindConstructor) GetBindingForGin(d interface{}) []binding.Binding {
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bs := e.getBinding(reflect.TypeOf(d).String())
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if bs == nil {
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//重新构建
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bs = e.resolve(d)
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}
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gbs := make([]binding.Binding, len(bs))
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for i, b := range bs {
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switch b {
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case json:
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gbs[i] = binding.JSON
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case xml:
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gbs[i] = binding.XML
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case yaml:
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gbs[i] = binding.YAML
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case form:
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gbs[i] = binding.Form
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case query:
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gbs[i] = binding.Query
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default:
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gbs[i] = nil
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}
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}
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return gbs
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}
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func (e *bindConstructor) resolve(d interface{}) []uint8 {
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bs := make([]uint8, 0)
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qType := reflect.TypeOf(d).Elem()
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var tag reflect.StructTag
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var ok bool
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fmt.Println(qType.Kind())
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for i := 0; i < qType.NumField(); i++ {
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tag = qType.Field(i).Tag
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if _, ok = tag.Lookup("json"); ok {
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bs = append(bs, json)
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}
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if _, ok = tag.Lookup("xml"); ok {
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bs = append(bs, xml)
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}
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if _, ok = tag.Lookup("yaml"); ok {
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bs = append(bs, yaml)
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}
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if _, ok = tag.Lookup("form"); ok {
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bs = append(bs, form)
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}
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if _, ok = tag.Lookup("query"); ok {
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bs = append(bs, query)
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}
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if _, ok = tag.Lookup("uri"); ok {
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bs = append(bs, 0)
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}
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if t, ok := tag.Lookup("binding"); ok && strings.Index(t, "dive") > -1 {
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qValue := reflect.ValueOf(d)
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bs = append(bs, e.resolve(qValue.Field(i))...)
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continue
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}
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if t, ok := tag.Lookup("validate"); ok && strings.Index(t, "dive") > -1 {
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qValue := reflect.ValueOf(d)
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bs = append(bs, e.resolve(qValue.Field(i))...)
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}
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}
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return bs
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}
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func (e *bindConstructor) getBinding(name string) []uint8 {
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e.mux.Lock()
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defer e.mux.Unlock()
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return e.cache[name]
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}
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func (e *bindConstructor) setBinding(name string, bs []uint8) {
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e.mux.Lock()
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defer e.mux.Unlock()
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if e.cache == nil {
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e.cache = make(map[string][]uint8)
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}
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e.cache[name] = bs
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}
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