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Beego/config/config.go

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package config
import (
"fmt"
)
type ConfigContainer interface {
Set(key, val string) error
String(key string) string
Int(key string) (int, error)
Int64(key string) (int64, error)
Bool(key string) (bool, error)
Float(key string) (float64, error)
DIY(key string) (interface{}, error)
}
type Config interface {
Parse(key string) (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 _, dup := adapters[name]; dup {
panic("config: Register called twice for adapter " + name)
}
adapters[name] = adapter
}
// config need to be correct JSON as string: {"interval":360}
func NewConfig(adapterName, fileaname string) (ConfigContainer, error) {
adapter, ok := adapters[adapterName]
if !ok {
return nil, fmt.Errorf("config: unknown adaptername %q (forgotten import?)", adapterName)
}
return adapter.Parse(fileaname)
}