You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
63 lines
1.8 KiB
63 lines
1.8 KiB
// Copyright 2020 The Gitea Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package queue
|
|
|
|
import (
|
|
"encoding/json"
|
|
"reflect"
|
|
)
|
|
|
|
// toConfig will attempt to convert a given configuration cfg into the provided exemplar type.
|
|
//
|
|
// It will tolerate the cfg being passed as a []byte or string of a json representation of the
|
|
// exemplar or the correct type of the exemplar itself
|
|
func toConfig(exemplar, cfg interface{}) (interface{}, error) {
|
|
if reflect.TypeOf(cfg).AssignableTo(reflect.TypeOf(exemplar)) {
|
|
return cfg, nil
|
|
}
|
|
|
|
configBytes, ok := cfg.([]byte)
|
|
if !ok {
|
|
configStr, ok := cfg.(string)
|
|
if !ok {
|
|
return nil, ErrInvalidConfiguration{cfg: cfg}
|
|
}
|
|
configBytes = []byte(configStr)
|
|
}
|
|
newVal := reflect.New(reflect.TypeOf(exemplar))
|
|
if err := json.Unmarshal(configBytes, newVal.Interface()); err != nil {
|
|
return nil, ErrInvalidConfiguration{cfg: cfg, err: err}
|
|
}
|
|
return newVal.Elem().Interface(), nil
|
|
}
|
|
|
|
// unmarshalAs will attempt to unmarshal provided bytes as the provided exemplar
|
|
func unmarshalAs(bs []byte, exemplar interface{}) (data Data, err error) {
|
|
if exemplar != nil {
|
|
t := reflect.TypeOf(exemplar)
|
|
n := reflect.New(t)
|
|
ne := n.Elem()
|
|
err = json.Unmarshal(bs, ne.Addr().Interface())
|
|
data = ne.Interface().(Data)
|
|
} else {
|
|
err = json.Unmarshal(bs, &data)
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
// assignableTo will check if provided data is assignable to the same type as the exemplar
|
|
// if the provided exemplar is nil then it will always return true
|
|
func assignableTo(data Data, exemplar interface{}) bool {
|
|
if exemplar == nil {
|
|
return true
|
|
}
|
|
|
|
// Assert data is of same type as exemplar
|
|
t := reflect.TypeOf(data)
|
|
exemplarType := reflect.TypeOf(exemplar)
|
|
|
|
return t.AssignableTo(exemplarType) && data != nil
|
|
}
|