Function ParseJSONTag

tsunami/util/util.go:249–285

(field reflect.StructField)

}

func ParseJSONTag(field reflect.StructField) (JsonFieldInfo, bool) {
	tag := field.Tag.Get("json")

	// Ignore field
	if tag == "-" {
		return JsonFieldInfo{}, false
	}

	name := field.Name
	var opts []string
	var omitEmpty, asString bool

	if tag != "" {
		parts := strings.Split(tag, ",")
		if parts[0] != "" {
			name = parts[0]
		}
		if len(parts) > 1 {
			opts = parts[1:]
			for _, opt := range opts {
				switch opt {
				case "omitempty":
					omitEmpty = true
				case "string":
					asString = true
				}
			}
		}
	}

	return JsonFieldInfo{
		FieldName: name,
		OmitEmpty: omitEmpty,
		AsString:  asString,
		Options:   opts,
	}, true
}

// TruncateString truncates a string to maxLen runes (not bytes).
// If the string is longer than maxLen, it truncates to maxLen-3 and appends "...".