AlexStocks commented on code in PR #389: URL: https://github.com/apache/dubbo-go-pixiu/pull/389#discussion_r850093973
########## samples/dubbogo/simple/nacos/server/app/user.go: ########## @@ -0,0 +1,271 @@ +/* + * 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" + "errors" + "fmt" + "sync" + "time" +) + +import ( + "dubbo.apache.org/dubbo-go/v3/config" + + hessian "github.com/apache/dubbo-go-hessian2" +) + +func init() { + config.SetProviderService(new(UserProvider)) + // ------for hessian2------ + hessian.RegisterPOJO(&User{}) + + cache = &UserDB{ + nameIndex: make(map[string]*User, 16), + codeIndex: make(map[int64]*User, 16), + lock: sync.Mutex{}, + } + + cache.Add(&User{ID: "0001", Code: 1, Name: "tc", Age: 18, Time: time.Now()}) + cache.Add(&User{ID: "0002", Code: 2, Name: "ic", Age: 88, Time: time.Now()}) +} + +var cache *UserDB + +// UserDB cache user. +type UserDB struct { + // key is name, value is user obj + nameIndex map[string]*User + // key is code, value is user obj + codeIndex map[int64]*User + lock sync.Mutex +} + +// nolint +func (db *UserDB) Add(u *User) bool { + if u.Name == "" || u.Code <= 0 { + return false + } + + db.lock.Lock() + defer db.lock.Unlock() + + if !db.existName(u.Name) && !db.existCode(u.Code) { + return db.AddForName(u) && db.AddForCode(u) + } + + return false +} + +// nolint +func (db *UserDB) AddForName(u *User) bool { + if len(u.Name) == 0 { + return false + } + + if _, ok := db.nameIndex[u.Name]; ok { + return false + } + + db.nameIndex[u.Name] = u + return true +} + +// nolint +func (db *UserDB) AddForCode(u *User) bool { + if u.Code <= 0 { + return false + } + + if _, ok := db.codeIndex[u.Code]; ok { + return false + } + + db.codeIndex[u.Code] = u + return true +} + +// nolint +func (db *UserDB) GetByName(n string) (*User, bool) { + db.lock.Lock() + defer db.lock.Unlock() + + r, ok := db.nameIndex[n] + return r, ok +} + +// nolint +func (db *UserDB) GetByCode(n int64) (*User, bool) { + db.lock.Lock() + defer db.lock.Unlock() + + r, ok := db.codeIndex[n] + return r, ok +} + +func (db *UserDB) existName(name string) bool { + if len(name) <= 0 { + return false + } + + _, ok := db.nameIndex[name] + if ok { + return true + } + + return false +} + +func (db *UserDB) existCode(code int64) bool { + if code <= 0 { + return false + } + + _, ok := db.codeIndex[code] + if ok { + return true + } + + return false +} + +// User user obj. +type User struct { + ID string `json:"id,omitempty"` + Code int64 `json:"code,omitempty"` + Name string `json:"name,omitempty"` + Age int32 `json:"age,omitempty"` + Time time.Time `json:"time,omitempty"` +} + +// UserProvider the dubbo provider. +// like: version: 1.0.0 group: test +type UserProvider struct{} + +// CreateUser new user, PX config POST. +func (u *UserProvider) CreateUser(ctx context.Context, user *User) (*User, error) { + outLn("Req CreateUser data:%#v", user) + if user == nil { + return nil, errors.New("not found") + } + _, ok := cache.GetByName(user.Name) + if ok { + return nil, errors.New("data is exist") + } + + b := cache.Add(user) + if b { + return user, nil + } + + return nil, errors.New("add error") +} + +// GetUserByName query by name, single param, PX config GET. +func (u *UserProvider) GetUserByName(ctx context.Context, name string) (*User, error) { + outLn("Req GetUserByName name:%#v", name) + r, ok := cache.GetByName(name) + if ok { + outLn("Req GetUserByName result:%#v", r) + return r, nil + } + return nil, nil +} + +// GetUserByCode query by code, single param, PX config GET. +func (u *UserProvider) GetUserByCode(ctx context.Context, code int64) (*User, error) { + outLn("Req GetUserByCode name:%#v", code) + r, ok := cache.GetByCode(code) + if ok { + outLn("Req GetUserByCode result:%#v", r) + return r, nil + } + return nil, nil +} + +// GetUserTimeout query by name, will timeout for pixiu. +func (u *UserProvider) GetUserTimeout(ctx context.Context, name string) (*User, error) { + outLn("Req GetUserByName name:%#v", name) + // sleep 10s, pixiu config less than 10s. + time.Sleep(10 * time.Second) + r, ok := cache.GetByName(name) + if ok { + outLn("Req GetUserByName result:%#v", r) + return r, nil + } + return nil, nil +} + +// GetUserByNameAndAge query by name and age, two params, PX config GET. +func (u *UserProvider) GetUserByNameAndAge(ctx context.Context, name string, age int32) (*User, error) { + outLn("Req GetUserByNameAndAge name:%s, age:%d", name, age) + r, ok := cache.GetByName(name) + if ok && r.Age == age { + outLn("Req GetUserByNameAndAge result:%#v", r) + return r, nil + } + return r, nil +} + +// UpdateUser update by user struct, my be another struct, PX config POST or PUT. +func (u *UserProvider) UpdateUser(ctx context.Context, user *User) (bool, error) { + outLn("Req UpdateUser data:%#v", user) + r, ok := cache.GetByName(user.Name) + if ok { + if user.ID != "" { + r.ID = user.ID + } + if user.Age >= 0 { + r.Age = user.Age + } + return true, nil + } + return false, errors.New("not found") +} + +// UpdateUserByName update by user struct, my be another struct, PX config POST or PUT. +func (u *UserProvider) UpdateUserByName(ctx context.Context, name string, user *User) (bool, error) { + outLn("Req UpdateUserByName data:%#v", user) + r, ok := cache.GetByName(name) + if ok { + if user.ID != "" { + r.ID = user.ID + } + if user.Age >= 0 { + r.Age = user.Age + } + return true, nil + } + return false, errors.New("not found") +} + +// nolint +func (u *UserProvider) Reference() string { + return "UserProvider" +} + +// nolint +func (u User) JavaClassName() string { + return "com.dubbogo.pixiu.User" +} + +// nolint +func outLn(format string, args ...interface{}) { + fmt.Printf("\033[32;40m"+format+"\033[0m\n", args...) Review Comment: If u really wannt use the color prefix, pls define them as const in common/color.go. Follow the following example from my c lib lisk ```go static const n1* color_string_[] = { [ESCREEN_COLOR_MIN] = "", [ENORMAL] = "\033[0m", [EBLUE] = "\033[1;34;40m", [ERED] = "\033[1;31;40m", [EPRUPLE] = "\033[1;35;40m", [EWHITE] = "\033[1;37;40m", [EGREEN] = "\033[1;32;40m", [EAQUA] = "\033[1;36;40m", [EHIGH_LIGHT] = "\033[1;48;40m", [EYELLOW] = "\033[1;33;40m", [EUNDER_LINE] = "\033[1;4;40m", [EUNDER_LINE_TWINKLE] = "\033[1;5;40m", [EUNDER_LINE_TWINKLE_HIGH_LIGHT] = "\033[1;7;40m" }; ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. 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