| /* |
| * 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 main |
| |
| import ( |
| "context" |
| "strings" |
| "time" |
| |
| perrors "github.com/pkg/errors" |
| |
| "github.com/dubbogo/go-zookeeper/zk" |
| |
| "dubbo.apache.org/dubbo-go/v3" |
| "dubbo.apache.org/dubbo-go/v3/config_center" |
| _ "dubbo.apache.org/dubbo-go/v3/imports" |
| greet "github.com/apache/dubbo-go-samples/config_center/zookeeper/proto" |
| "github.com/dubbogo/gost/log/logger" |
| ) |
| |
| type GreetTripleServer struct { |
| } |
| |
| func (srv *GreetTripleServer) Greet(ctx context.Context, req *greet.GreetRequest) (*greet.GreetResponse, error) { |
| resp := &greet.GreetResponse{Greeting: req.Name} |
| return resp, nil |
| } |
| |
| const configCenterZKServerConfig = `## set in config center, group is 'dubbogo', dataid is 'dubbo-go-samples-configcenter-zookeeper-server', namespace is default |
| dubbo: |
| registries: |
| demoZK: |
| protocol: zookeeper |
| timeout: 3s |
| address: '127.0.0.1:2181' |
| protocols: |
| triple: |
| name: tri |
| port: 20000 |
| provider: |
| services: |
| GreeterProvider: |
| interface: com.apache.dubbo.sample.basic.IGreeter |
| ` |
| |
| func ensurePath(c *zk.Conn, path string, data []byte, flags int32, acl []zk.ACL) error { |
| _, err := c.Create(path, data, flags, acl) |
| return err |
| } |
| |
| func main() { |
| c, _, err := zk.Connect([]string{"127.0.0.1:2181"}, time.Second*10) |
| if err != nil { |
| panic(err) |
| } |
| |
| valueBytes := []byte(configCenterZKServerConfig) |
| path := "/dubbo/config/dubbogo/dubbo-go-samples-configcenter-zookeeper-server" |
| if !strings.HasPrefix(path, "/") { |
| path = "/" + path |
| } |
| paths := strings.Split(path, "/") |
| for idx := 2; idx < len(paths); idx++ { |
| tmpPath := strings.Join(paths[:idx], "/") |
| _, err = c.Create(tmpPath, []byte{}, 0, zk.WorldACL(zk.PermAll)) |
| if err != nil && err != zk.ErrNodeExists { |
| panic(err) |
| } |
| } |
| |
| _, err = c.Create(path, valueBytes, 0, zk.WorldACL(zk.PermAll)) |
| if err != nil { |
| if perrors.Is(err, zk.ErrNodeExists) { |
| _, stat, _ := c.Get(path) |
| _, setErr := c.Set(path, valueBytes, stat.Version) |
| if setErr != nil { |
| panic(err) |
| } |
| } else { |
| panic(err) |
| } |
| } |
| time.Sleep(time.Second * 10) |
| |
| zkOption := config_center.WithZookeeper() |
| dataIdOption := config_center.WithDataID("dubbo-go-samples-configcenter-zookeeper-server") |
| addressOption := config_center.WithAddress("127.0.0.1:2181") |
| groupOption := config_center.WithGroup("dubbogo") |
| ins, err := dubbo.NewInstance( |
| dubbo.WithConfigCenter(zkOption, dataIdOption, addressOption, groupOption), |
| ) |
| if err != nil { |
| panic(err) |
| } |
| srv, err := ins.NewServer() |
| if err != nil { |
| panic(err) |
| } |
| |
| if err = greet.RegisterGreetServiceHandler(srv, &GreetTripleServer{}); err != nil { |
| panic(err) |
| } |
| |
| if err = srv.Serve(); err != nil { |
| logger.Error(err) |
| } |
| } |