/
configserver.go
163 lines (143 loc) · 3.43 KB
/
configserver.go
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package utils
import (
"fmt"
"strconv"
"strings"
"github.com/Laisky/zap"
"github.com/pkg/errors"
)
// ConfigSource config item in config-server
type ConfigSource struct {
Name string `json:"name"`
Source map[string]interface{} `json:"source"`
}
// Config whole configuation return by config-server
type Config struct {
Name string `json:"name"`
Profiles []string `json:"profiles"`
Label string `json:"label"`
Version string `json:"version"`
Sources []*ConfigSource `json:"propertySources"`
}
// ConfigSrv can load configuration from Spring-Cloud-Config-Server
type ConfigSrv struct {
RemoteCfg *Config
url, // config-server api
profile, // env
label, // branch
app string // app name
}
// NewConfigSrv create ConfigSrv
func NewConfigSrv(url, app, profile, label string) *ConfigSrv {
return &ConfigSrv{
RemoteCfg: &Config{},
url: url,
app: app,
label: label,
profile: profile,
}
}
// Fetch load data from config-server
func (c *ConfigSrv) Fetch() error {
url := strings.Join([]string{c.url, c.app, c.profile, c.label}, "/")
err := RequestJSONWithClient(httpClient, "get", url, &RequestData{}, c.RemoteCfg)
if err != nil {
return errors.Wrap(err, "try to get config got error")
}
return nil
}
// Get get `interface{}` from the localcache of config-server
func (c *ConfigSrv) Get(name string) (interface{}, bool) {
var (
item string
val interface{}
)
for _, src := range c.RemoteCfg.Sources {
for item, val = range src.Source {
if item == name {
return val, true
}
}
}
return nil, false
}
// GetString get `string` from the localcache of config-server
func (c *ConfigSrv) GetString(name string) (string, bool) {
if val, ok := c.Get(name); ok {
return val.(string), true
}
return "", false
}
// GetInt get `int` from the localcache of config-server
func (c *ConfigSrv) GetInt(name string) (val int, ok bool) {
var (
itf interface{}
err error
)
if itf, ok = c.Get(name); ok {
switch v := itf.(type) {
case int:
val = v
case int64:
val = int(v)
case string:
if val, err = strconv.Atoi(v); err != nil {
Logger.Error("cannot parse string to int64",
zap.String("name", name),
zap.String("val", fmt.Sprint(v)))
return val, false
}
default:
Logger.Error("unknown type",
zap.String("name", name),
zap.String("val", fmt.Sprint(v)))
return val, false
}
return
}
return
}
// GetBool get `bool` from the localcache of config-server
func (c *ConfigSrv) GetBool(name string) (val bool, ok bool) {
var (
itf interface{}
err error
)
if itf, ok = c.Get(name); ok {
switch v := itf.(type) {
case int:
val = v != 0
case int64:
val = v != 0
case string:
if val, err = strconv.ParseBool(v); err != nil {
Logger.Error("cannot parse string to bool",
zap.String("name", name),
zap.String("val", fmt.Sprint(v)))
return val, false
}
default:
Logger.Error("unknown type",
zap.String("name", name),
zap.String("val", fmt.Sprint(v)))
return val, false
}
return
}
return
}
// Map interate `set(k, v)`
func (c *ConfigSrv) Map(set func(string, interface{})) {
var (
key string
val interface{}
src *ConfigSource
)
for i := 0; i < len(c.RemoteCfg.Sources); i++ {
src = c.RemoteCfg.Sources[i]
for key, val = range src.Source {
Logger.Debug("set settings", zap.String("key", key), zap.String("val", fmt.Sprint(val)))
set(key, val)
}
}
}