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Beego/config/config.go
Viet Hung Nguyen cbb6591bdb fix typo
2015-08-26 15:57:28 +07:00

108 lines
3.9 KiB
Go

// Copyright 2014 beego Author. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Usage:
// import(
// "github.com/astaxie/beego/config"
// )
//
// cnf, err := config.NewConfig("ini", "config.conf")
//
// cnf APIS:
//
// cnf.Set(key, val string) error
// cnf.String(key string) string
// cnf.Strings(key string) []string
// cnf.Int(key string) (int, error)
// cnf.Int64(key string) (int64, error)
// cnf.Bool(key string) (bool, error)
// cnf.Float(key string) (float64, error)
// cnf.DefaultString(key string, defaultval string) string
// cnf.DefaultStrings(key string, defaultval []string) []string
// cnf.DefaultInt(key string, defaultval int) int
// cnf.DefaultInt64(key string, defaultval int64) int64
// cnf.DefaultBool(key string, defaultval bool) bool
// cnf.DefaultFloat(key string, defaultval float64) float64
// cnf.DIY(key string) (interface{}, error)
// cnf.GetSection(section string) (map[string]string, error)
// cnf.SaveConfigFile(filename string) error
//
// more docs http://beego.me/docs/module/config.md
package config
import (
"fmt"
)
// ConfigContainer defines how to get and set value from configuration raw data.
type ConfigContainer interface {
Set(key, val string) error // support section::key type in given key when using ini type.
String(key string) string // support section::key type in key string when using ini and json type; Int,Int64,Bool,Float,DIY are same.
Strings(key string) []string //get string slice
Int(key string) (int, error)
Int64(key string) (int64, error)
Bool(key string) (bool, error)
Float(key string) (float64, error)
DefaultString(key string, defaultval string) string // support section::key type in key string when using ini and json type; Int,Int64,Bool,Float,DIY are same.
DefaultStrings(key string, defaultval []string) []string //get string slice
DefaultInt(key string, defaultval int) int
DefaultInt64(key string, defaultval int64) int64
DefaultBool(key string, defaultval bool) bool
DefaultFloat(key string, defaultval float64) float64
DIY(key string) (interface{}, error)
GetSection(section string) (map[string]string, error)
SaveConfigFile(filename string) error
}
// Config is the adapter interface for parsing config file to get raw data to ConfigContainer.
type Config interface {
Parse(key string) (ConfigContainer, error)
ParseData(data []byte) (ConfigContainer, error)
}
var adapters = make(map[string]Config)
// Register makes a config adapter available by the adapter name.
// If Register is called twice with the same name or if driver is nil,
// it panics.
func Register(name string, adapter Config) {
if adapter == nil {
panic("config: Register adapter is nil")
}
if _, ok := adapters[name]; ok {
panic("config: Register called twice for adapter " + name)
}
adapters[name] = adapter
}
// adapterName is ini/json/xml/yaml.
// filename is the config file path.
func NewConfig(adapterName, filename string) (ConfigContainer, error) {
adapter, ok := adapters[adapterName]
if !ok {
return nil, fmt.Errorf("config: unknown adaptername %q (forgotten import?)", adapterName)
}
return adapter.Parse(filename)
}
// adapterName is ini/json/xml/yaml.
// data is the config data.
func NewConfigData(adapterName string, data []byte) (ConfigContainer, error) {
adapter, ok := adapters[adapterName]
if !ok {
return nil, fmt.Errorf("config: unknown adaptername %q (forgotten import?)", adapterName)
}
return adapter.ParseData(data)
}