| /* |
| * 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 registry |
| |
| import ( |
| "fmt" |
| "time" |
| ) |
| |
| import ( |
| "github.com/dubbogo/gost/log/logger" |
| |
| "go.uber.org/atomic" |
| ) |
| |
| import ( |
| "dubbo.apache.org/dubbo-go/v3/common" |
| ) |
| |
| // MockRegistry is used as mock registry |
| type MockRegistry struct { |
| listener *listener |
| destroyed *atomic.Bool |
| allAddress chan []*ServiceEvent |
| } |
| |
| // NewMockRegistry creates a mock registry |
| func NewMockRegistry(url *common.URL) (Registry, error) { |
| registry := &MockRegistry{ |
| destroyed: atomic.NewBool(false), |
| allAddress: make(chan []*ServiceEvent), |
| } |
| listener := &listener{count: 0, registry: registry, listenChan: make(chan *ServiceEvent)} |
| registry.listener = listener |
| return registry, nil |
| } |
| |
| // Register is used as a mock registry |
| func (*MockRegistry) Register(url *common.URL) error { |
| return nil |
| } |
| |
| // nolint |
| func (r *MockRegistry) UnRegister(conf *common.URL) error { |
| return nil |
| } |
| |
| // nolint |
| func (r *MockRegistry) Destroy() { |
| if r.destroyed.CAS(false, true) { |
| } |
| } |
| |
| // IsAvailable is use for determine a mock registry available |
| func (r *MockRegistry) IsAvailable() bool { |
| return !r.destroyed.Load() |
| } |
| |
| // nolint |
| func (r *MockRegistry) GetURL() *common.URL { |
| return nil |
| } |
| |
| func (r *MockRegistry) subscribe(*common.URL) (Listener, error) { |
| return r.listener, nil |
| } |
| |
| // nolint |
| func (r *MockRegistry) Subscribe(url *common.URL, notifyListener NotifyListener) error { |
| go func() { |
| for { |
| t, listener := r.checkLoopSubscribe(url) |
| if t == 0 { |
| continue |
| } else if t == -1 { |
| return |
| } |
| for { |
| serviceEvent, err := listener.Next() |
| if err != nil { |
| listener.Close() |
| time.Sleep(time.Duration(3) * time.Second) |
| return |
| } |
| |
| logger.Infof("[Mock Registry] update begin, service event: %v", serviceEvent.String()) |
| notifyListener.Notify(serviceEvent) |
| } |
| } |
| }() |
| go func() { |
| for { |
| t, _ := r.checkLoopSubscribe(url) |
| if t == 0 { |
| continue |
| } else if t == -1 { |
| return |
| } |
| |
| for { |
| select { |
| case e := <-r.allAddress: |
| notifyListener.NotifyAll(e, func() { |
| fmt.Print("notify all ok") |
| }) |
| break |
| } |
| } |
| } |
| }() |
| return nil |
| } |
| |
| // UnSubscribe : |
| func (r *MockRegistry) UnSubscribe(url *common.URL, notifyListener NotifyListener) error { |
| return nil |
| } |
| |
| // LoadSubscribeInstances load subscribe instance |
| func (r *MockRegistry) LoadSubscribeInstances(_ *common.URL, _ NotifyListener) error { |
| return nil |
| } |
| |
| type listener struct { |
| count int64 |
| registry *MockRegistry |
| listenChan chan *ServiceEvent |
| } |
| |
| func (l *listener) Next() (*ServiceEvent, error) { |
| return <-l.listenChan, nil |
| } |
| |
| func (*listener) Close() { |
| } |
| |
| // nolint |
| func (r *MockRegistry) MockEvent(event *ServiceEvent) { |
| r.listener.listenChan <- event |
| } |
| |
| // nolint |
| func (r *MockRegistry) MockEvents(events []*ServiceEvent) { |
| r.allAddress <- events |
| } |
| |
| func (r *MockRegistry) checkLoopSubscribe(url *common.URL) (int, Listener) { |
| if !r.IsAvailable() { |
| logger.Warnf("event listener game over.") |
| time.Sleep(time.Duration(3) * time.Second) |
| return -1, nil |
| } |
| |
| listener, err := r.subscribe(url) |
| if err != nil { |
| if !r.IsAvailable() { |
| logger.Warnf("event listener game over.") |
| return -1, nil |
| } |
| time.Sleep(time.Duration(3) * time.Second) |
| return 0, nil |
| } |
| return 1, listener |
| } |