config.go

package singularity

import "sync"

//Configuration interface for getting config values
type Configuration interface {
	GetBool(string) bool
	CheckBool(string) (bool, bool)
	GetString(string) string
	CheckString(string) (string, bool)
}

type defaultConfig struct {
	sync.Mutex
	config map[string]interface{}
}

func (config *defaultConfig) getVal(key string) interface{} {
	config.Lock()
	defer config.Unlock()
	return config.config[key]
}

//GetBool returns the bool value of key, and defaults to false if it can't find key.
func (config *defaultConfig) GetBool(key string) bool {
	if val1 := config.getVal(key); val1 != nil {
		if val2, ok := val1.(bool); ok {
			return val2
		}
	}
	return false
}

//CheckBool returns the bool value of key, and whether or not it actually found key.
func (config *defaultConfig) CheckBool(key string) (bool, bool) {
	if val1 := config.getVal(key); val1 != nil {
		if val2, ok := val1.(bool); ok {
			return val2, true
		}
	}
	return false, false
}

//GetString returns the bool value of key, and defaults to false if it can't find key.
func (config *defaultConfig) GetString(key string) string {
	if val1 := config.getVal(key); val1 != nil {
		if val2, ok := val1.(string); ok {
			return val2
		}
	}
	return ""
}

//CheckString returns the bool value of key, and whether or not it actually found key.
func (config *defaultConfig) CheckString(key string) (string, bool) {
	if val1 := config.getVal(key); val1 != nil {
		if val2, ok := val1.(string); ok {
			return val2, true
		}
	}
	return "", false
}