forked from apolloconfig/agollo
/
async.go
192 lines (165 loc) 路 5.67 KB
/
async.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
package remote
import (
"encoding/json"
"fmt"
"net/url"
"path"
"time"
"github.com/apolloconfig/agollo/v4/component/log"
"github.com/apolloconfig/agollo/v4/constant"
"github.com/apolloconfig/agollo/v4/env"
"github.com/apolloconfig/agollo/v4/env/config"
"github.com/apolloconfig/agollo/v4/extension"
"github.com/apolloconfig/agollo/v4/protocol/http"
"github.com/apolloconfig/agollo/v4/utils"
)
const (
//notify timeout
notifyConnectTimeout = 10 * time.Minute //10m
defaultContentKey = "content"
)
// CreateAsyncApolloConfig 鍒涘缓寮傛 apollo 閰嶇疆
func CreateAsyncApolloConfig() ApolloConfig {
a := &asyncApolloConfig{}
a.remoteApollo = a
return a
}
type asyncApolloConfig struct {
AbsApolloConfig
}
func (*asyncApolloConfig) GetNotifyURLSuffix(notifications string, config config.AppConfig) string {
return fmt.Sprintf("notifications/v2?appId=%s&cluster=%s¬ifications=%s",
url.QueryEscape(config.AppID),
url.QueryEscape(config.Cluster),
url.QueryEscape(notifications))
}
func (*asyncApolloConfig) GetSyncURI(config config.AppConfig, namespaceName string) string {
return fmt.Sprintf("configs/%s/%s/%s?releaseKey=%s&ip=%s&label=%s",
url.QueryEscape(config.AppID),
url.QueryEscape(config.Cluster),
url.QueryEscape(namespaceName),
url.QueryEscape(config.GetCurrentApolloConfig().GetReleaseKey(namespaceName)),
utils.GetInternal(),
url.QueryEscape(config.Label))
}
func (a *asyncApolloConfig) Sync(appConfigFunc func() config.AppConfig) []*config.ApolloConfig {
appConfig := appConfigFunc()
remoteConfigs, err := a.notifyRemoteConfig(appConfigFunc, utils.Empty)
var apolloConfigs []*config.ApolloConfig
if err != nil {
apolloConfigs = loadBackupConfig(appConfig.NamespaceName, appConfig)
}
if len(remoteConfigs) == 0 || len(apolloConfigs) > 0 {
return apolloConfigs
}
//鍙槸鎷夊幓鏈夊彉鍖栫殑閰嶇疆, 骞舵洿鏂版媺鍙栨垚鍔熺殑namespace鐨刵otify ID
for _, notifyConfig := range remoteConfigs {
apolloConfig := a.SyncWithNamespace(notifyConfig.NamespaceName, appConfigFunc)
if apolloConfig != nil {
appConfig.GetNotificationsMap().UpdateNotify(notifyConfig.NamespaceName, notifyConfig.NotificationID)
apolloConfigs = append(apolloConfigs, apolloConfig)
}
}
return apolloConfigs
}
func (*asyncApolloConfig) CallBack(namespace string) http.CallBack {
return http.CallBack{
SuccessCallBack: createApolloConfigWithJSON,
NotModifyCallBack: touchApolloConfigCache,
Namespace: namespace,
}
}
func (a *asyncApolloConfig) notifyRemoteConfig(appConfigFunc func() config.AppConfig, namespace string) ([]*config.Notification, error) {
if appConfigFunc == nil {
panic("can not find apollo config!please confirm!")
}
appConfig := appConfigFunc()
notificationsMap := appConfig.GetNotificationsMap()
urlSuffix := a.GetNotifyURLSuffix(notificationsMap.GetNotifies(namespace), appConfig)
connectConfig := &env.ConnectConfig{
URI: urlSuffix,
AppID: appConfig.AppID,
Secret: appConfig.Secret,
}
connectConfig.Timeout = notifyConnectTimeout
notifies, err := http.RequestRecovery(appConfig, connectConfig, &http.CallBack{
SuccessCallBack: func(responseBody []byte, callback http.CallBack) (interface{}, error) {
return toApolloConfig(responseBody)
},
NotModifyCallBack: touchApolloConfigCache,
Namespace: namespace,
})
if notifies == nil {
return nil, err
}
return notifies.([]*config.Notification), err
}
func touchApolloConfigCache() error {
return nil
}
func toApolloConfig(resBody []byte) ([]*config.Notification, error) {
remoteConfig := make([]*config.Notification, 0)
err := json.Unmarshal(resBody, &remoteConfig)
if err != nil {
log.Errorf("Unmarshal Msg Fail,Error: %v", err)
return nil, err
}
return remoteConfig, nil
}
func loadBackupConfig(namespace string, appConfig config.AppConfig) []*config.ApolloConfig {
apolloConfigs := make([]*config.ApolloConfig, 0)
config.SplitNamespaces(namespace, func(namespace string) {
c, err := extension.GetFileHandler().LoadConfigFile(appConfig.BackupConfigPath, appConfig.AppID, namespace)
if err != nil {
log.Errorf("LoadConfigFile error, error: %v", err)
return
}
if c == nil {
return
}
apolloConfigs = append(apolloConfigs, c)
})
return apolloConfigs
}
func createApolloConfigWithJSON(b []byte, callback http.CallBack) (o interface{}, err error) {
apolloConfig := &config.ApolloConfig{}
err = json.Unmarshal(b, apolloConfig)
if utils.IsNotNil(err) {
return nil, err
}
parser := extension.GetFormatParser(constant.ConfigFileFormat(path.Ext(apolloConfig.NamespaceName)))
if parser == nil {
parser = extension.GetFormatParser(constant.DEFAULT)
}
if parser == nil {
return apolloConfig, nil
}
content, ok := apolloConfig.Configurations[defaultContentKey]
if !ok {
content = string(b)
}
m, err := parser.Parse(content)
if err != nil {
log.Debugf("GetContent fail ! error: %v", err)
}
if len(m) > 0 {
apolloConfig.Configurations = m
}
return apolloConfig, nil
}