| /* |
| * 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 server |
| |
| import ( |
| "encoding/json" |
| "github.com/apache/servicecomb-service-center/pkg/log" |
| "github.com/apache/servicecomb-service-center/server/core" |
| "github.com/apache/servicecomb-service-center/server/core/backend" |
| "github.com/apache/servicecomb-service-center/server/plugin/pkg/registry" |
| "golang.org/x/net/context" |
| ) |
| |
| func LoadServerVersion() error { |
| resp, err := backend.Registry().Do(context.Background(), |
| registry.GET, registry.WithStrKey(core.GetServerInfoKey())) |
| if err != nil { |
| return err |
| } |
| if len(resp.Kvs) == 0 { |
| return nil |
| } |
| |
| err = json.Unmarshal(resp.Kvs[0].Value, &core.ServerInfo) |
| if err != nil { |
| log.Errorf(err, "load server version failed, maybe incompatible") |
| return nil |
| } |
| return nil |
| } |
| |
| func UpgradeServerVersion() error { |
| bytes, err := json.Marshal(core.ServerInfo) |
| if err != nil { |
| return err |
| } |
| _, err = backend.Registry().Do(context.Background(), |
| registry.PUT, registry.WithStrKey(core.GetServerInfoKey()), registry.WithValue(bytes)) |
| if err != nil { |
| return err |
| } |
| return nil |
| } |