/
config.go
195 lines (183 loc) · 3.75 KB
/
config.go
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package config
import (
"encoding/json"
"encoding/xml"
"fmt"
"github.com/pkg/errors"
"gopkg.in/yaml.v2"
"os"
"strings"
)
const YAML ParseType = "YAML"
const XML ParseType = "XML"
const JSON ParseType = "JSON"
type ParseType string
type Config struct {
data map[interface{}]interface{}
}
func Parse(data []byte, parseType ParseType) (*Config, error) {
config := &Config{}
err := config.parse(string(data), parseType)
if err != nil {
return nil, err
}
return config, nil
}
func (c *Config) Parse(fileName string, parseType ParseType) error {
file, err := os.ReadFile(fileName)
if err != nil {
return err
}
err = c.parse(string(file), parseType)
if err != nil {
return err
}
return nil
}
func (c *Config) parse(data string, parseType ParseType) error {
expandData := os.ExpandEnv(data)
var err error
switch parseType {
case YAML:
err = yaml.Unmarshal([]byte(expandData), &c.data)
if err != nil {
return err
}
break
case XML:
err = xml.Unmarshal([]byte(expandData), &c.data)
if err != nil {
return err
}
break
case JSON:
err = json.Unmarshal([]byte(expandData), &c.data)
if err != nil {
return err
}
break
default:
return errors.New("unsupported parse type")
}
return nil
}
func (c *Config) Get(key string) string {
if c.data == nil {
fmt.Println("config data is nil, please parse first")
return ""
}
split := strings.Split(key, ".")
value := get(split, c.data)
if value == nil {
fmt.Println("value is nil, please input the right key")
return ""
}
if val, ok := value.(string); ok {
return val
}
if valMap, ok := value.(map[interface{}]interface{}); ok {
env := envParser(valMap)
if env != nil {
return env.Get()
}
archV := archParser(valMap)
if archV != nil {
return archV.Get()
}
osV := osParser(valMap)
if osV != nil {
return osV.Get()
}
}
if val, ok := value.(interface{}); ok {
return fmt.Sprint(val)
}
return ""
}
func (c *Config) GetInt(key string) int {
return int(c.GetInt64(key))
}
func (c *Config) GetInt64(key string) int64 {
if c.data == nil {
fmt.Println("config data is nil, please parse first")
return -1
}
split := strings.Split(key, ".")
value := get(split, c.data)
if value == nil {
fmt.Println("value is nil, please input the right key")
return -1
}
if val, ok := value.(int); ok {
return int64(val)
}
if val, ok := value.(int64); ok {
return val
}
if valMap, ok := value.(map[interface{}]interface{}); ok {
env := envParser(valMap)
if env != nil {
return env.GetInt64()
}
archV := archParser(valMap)
if archV != nil {
return archV.GetInt64()
}
osV := osParser(valMap)
if osV != nil {
return osV.GetInt64()
}
}
fmt.Println("value type is unsupported")
return -1
}
func (c *Config) GetBool(key string) bool {
if c.data == nil {
fmt.Println("config data is nil, please parse first")
return false
}
split := strings.Split(key, ".")
value := get(split, c.data)
if value == nil {
fmt.Println("value is nil, please input the right key")
return false
}
if val, ok := value.(bool); ok {
return val
}
if valMap, ok := value.(map[interface{}]interface{}); ok {
env := envParser(valMap)
if env != nil {
return env.GetBool()
}
archV := archParser(valMap)
if archV != nil {
return archV.GetBool()
}
osV := osParser(valMap)
if osV != nil {
return osV.GetBool()
}
}
fmt.Println("value type is unsupported")
return false
}
func get(keys []string, tree map[interface{}]interface{}) interface{} {
if keys == nil {
return nil
}
if len(keys) == 1 {
value, ok := tree[keys[0]]
if ok {
return value
} else {
return nil
}
}
value, ok := tree[keys[0]]
if valueMap, valueOk := value.(map[interface{}]interface{}); valueOk && ok {
return get(keys[1:], valueMap)
} else {
return nil
}
}