示例#1
0
func (q *queryParser) parseStruct(v url.Values, value reflect.Value, prefix string) error {
	if !value.IsValid() {
		return nil
	}

	t := value.Type()
	for i := 0; i < value.NumField(); i++ {
		elemValue := elemOf(value.Field(i))
		field := t.Field(i)

		if field.PkgPath != "" {
			continue // ignore unexported fields
		}
		if field.Tag.Get("ignore") != "" {
			continue
		}

		if protocol.CanSetIdempotencyToken(value.Field(i), field) {
			token := protocol.GetIdempotencyToken()
			elemValue = reflect.ValueOf(token)
		}

		var name string
		if q.isEC2 {
			name = field.Tag.Get("queryName")
		}
		if name == "" {
			if field.Tag.Get("flattened") != "" && field.Tag.Get("locationNameList") != "" {
				name = field.Tag.Get("locationNameList")
			} else if locName := field.Tag.Get("locationName"); locName != "" {
				name = locName
			}
			if name != "" && q.isEC2 {
				name = strings.ToUpper(name[0:1]) + name[1:]
			}
		}
		if name == "" {
			name = field.Name
		}

		if prefix != "" {
			name = prefix + "." + name
		}

		if err := q.parseValue(v, elemValue, name, field.Tag); err != nil {
			return err
		}
	}
	return nil
}
示例#2
0
func buildStruct(value reflect.Value, buf *bytes.Buffer, tag reflect.StructTag) error {
	if !value.IsValid() {
		return nil
	}

	// unwrap payloads
	if payload := tag.Get("payload"); payload != "" {
		field, _ := value.Type().FieldByName(payload)
		tag = field.Tag
		value = elemOf(value.FieldByName(payload))

		if !value.IsValid() {
			return nil
		}
	}

	buf.WriteByte('{')

	t := value.Type()
	first := true
	for i := 0; i < t.NumField(); i++ {
		member := value.Field(i)
		field := t.Field(i)

		if field.PkgPath != "" {
			continue // ignore unexported fields
		}
		if field.Tag.Get("json") == "-" {
			continue
		}
		if field.Tag.Get("location") != "" {
			continue // ignore non-body elements
		}

		if protocol.CanSetIdempotencyToken(member, field) {
			token := protocol.GetIdempotencyToken()
			member = reflect.ValueOf(&token)
		}

		if (member.Kind() == reflect.Ptr || member.Kind() == reflect.Slice || member.Kind() == reflect.Map) && member.IsNil() {
			continue // ignore unset fields
		}

		if first {
			first = false
		} else {
			buf.WriteByte(',')
		}

		// figure out what this field is called
		name := field.Name
		if locName := field.Tag.Get("locationName"); locName != "" {
			name = locName
		}

		writeString(name, buf)
		buf.WriteString(`:`)

		err := buildAny(member, buf, field.Tag)
		if err != nil {
			return err
		}

	}

	buf.WriteString("}")

	return nil
}
示例#3
0
// buildStruct adds a struct and its fields to the current XMLNode. All fields any any nested
// types are converted to XMLNodes also.
func (b *xmlBuilder) buildStruct(value reflect.Value, current *XMLNode, tag reflect.StructTag) error {
	if !value.IsValid() {
		return nil
	}

	fieldAdded := false

	// unwrap payloads
	if payload := tag.Get("payload"); payload != "" {
		field, _ := value.Type().FieldByName(payload)
		tag = field.Tag
		value = elemOf(value.FieldByName(payload))

		if !value.IsValid() {
			return nil
		}
	}

	child := NewXMLElement(xml.Name{Local: tag.Get("locationName")})

	// there is an xmlNamespace associated with this struct
	if prefix, uri := tag.Get("xmlPrefix"), tag.Get("xmlURI"); uri != "" {
		ns := xml.Attr{
			Name:  xml.Name{Local: "xmlns"},
			Value: uri,
		}
		if prefix != "" {
			b.namespaces[prefix] = uri // register the namespace
			ns.Name.Local = "xmlns:" + prefix
		}

		child.Attr = append(child.Attr, ns)
	}

	t := value.Type()
	for i := 0; i < value.NumField(); i++ {
		member := elemOf(value.Field(i))
		field := t.Field(i)

		if field.PkgPath != "" {
			continue // ignore unexported fields
		}

		mTag := field.Tag
		if mTag.Get("location") != "" { // skip non-body members
			continue
		}

		if protocol.CanSetIdempotencyToken(value.Field(i), field) {
			token := protocol.GetIdempotencyToken()
			member = reflect.ValueOf(token)
		}

		memberName := mTag.Get("locationName")
		if memberName == "" {
			memberName = field.Name
			mTag = reflect.StructTag(string(mTag) + ` locationName:"` + memberName + `"`)
		}
		if err := b.buildValue(member, child, mTag); err != nil {
			return err
		}

		fieldAdded = true
	}

	if fieldAdded { // only append this child if we have one ore more valid members
		current.AddChild(child)
	}

	return nil
}