1
0
mirror of https://github.com/astaxie/beego.git synced 2024-12-28 10:25:47 +00:00
Beego/config/xml/xml.go
2014-07-17 16:22:41 +08:00

110 lines
2.7 KiB
Go

// Beego (http://beego.me/)
//
// @description beego is an open-source, high-performance web framework for the Go programming language.
//
// @link http://github.com/astaxie/beego for the canonical source repository
//
// @license http://github.com/astaxie/beego/blob/master/LICENSE
//
// @authors astaxie
package xml
import (
"errors"
"io/ioutil"
"os"
"strconv"
"strings"
"sync"
"github.com/astaxie/beego/config"
"github.com/beego/x2j"
)
// XmlConfig is a xml config parser and implements Config interface.
// xml configurations should be included in <config></config> tag.
// only support key/value pair as <key>value</key> as each item.
type XMLConfig struct{}
// Parse returns a ConfigContainer with parsed xml config map.
func (xc *XMLConfig) Parse(filename string) (config.ConfigContainer, error) {
file, err := os.Open(filename)
if err != nil {
return nil, err
}
defer file.Close()
x := &XMLConfigContainer{data: make(map[string]interface{})}
content, err := ioutil.ReadAll(file)
if err != nil {
return nil, err
}
d, err := x2j.DocToMap(string(content))
if err != nil {
return nil, err
}
x.data = d["config"].(map[string]interface{})
return x, nil
}
// A Config represents the xml configuration.
type XMLConfigContainer struct {
data map[string]interface{}
sync.Mutex
}
// Bool returns the boolean value for a given key.
func (c *XMLConfigContainer) Bool(key string) (bool, error) {
return strconv.ParseBool(c.data[key].(string))
}
// Int returns the integer value for a given key.
func (c *XMLConfigContainer) Int(key string) (int, error) {
return strconv.Atoi(c.data[key].(string))
}
// Int64 returns the int64 value for a given key.
func (c *XMLConfigContainer) Int64(key string) (int64, error) {
return strconv.ParseInt(c.data[key].(string), 10, 64)
}
// Float returns the float value for a given key.
func (c *XMLConfigContainer) Float(key string) (float64, error) {
return strconv.ParseFloat(c.data[key].(string), 64)
}
// String returns the string value for a given key.
func (c *XMLConfigContainer) String(key string) string {
if v, ok := c.data[key].(string); ok {
return v
}
return ""
}
// Strings returns the []string value for a given key.
func (c *XMLConfigContainer) Strings(key string) []string {
return strings.Split(c.String(key), ";")
}
// WriteValue writes a new value for key.
func (c *XMLConfigContainer) Set(key, val string) error {
c.Lock()
defer c.Unlock()
c.data[key] = val
return nil
}
// DIY returns the raw value by a given key.
func (c *XMLConfigContainer) DIY(key string) (v interface{}, err error) {
if v, ok := c.data[key]; ok {
return v, nil
}
return nil, errors.New("not exist key")
}
func init() {
config.Register("xml", &XMLConfig{})
}