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Merge pull request apache#302 from LaurenceLiZhixin/ftr/triple
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@@ -12,7 +12,8 @@ samples/dubbogo/simple/server/app/app | |
| /logs | ||
| /.idea | ||
| /.vscode | ||
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| log | ||
| cache | ||
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| .DS_Store | ||
| vendor/ | ||
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@@ -19,6 +19,9 @@ package main | |
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| import ( | ||
| "fmt" | ||
| ) | ||
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| import ( | ||
| "github.com/spf13/cobra" | ||
| ) | ||
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201 changes: 201 additions & 0 deletions
201
pkg/adapter/dubboregistry/registry/nacos/interface_listener.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. | ||
| */ | ||
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| package nacos | ||
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| import ( | ||
| "fmt" | ||
| "strings" | ||
| "sync" | ||
| "time" | ||
| ) | ||
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| import ( | ||
| dubboCommon "dubbo.apache.org/dubbo-go/v3/common" | ||
| "dubbo.apache.org/dubbo-go/v3/common/constant" | ||
| dubboConfig "dubbo.apache.org/dubbo-go/v3/config" | ||
| dubboRegistry "dubbo.apache.org/dubbo-go/v3/registry" | ||
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| "github.com/apache/dubbo-go/common" | ||
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| "github.com/nacos-group/nacos-sdk-go/clients/naming_client" | ||
| "github.com/nacos-group/nacos-sdk-go/vo" | ||
| ) | ||
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| import ( | ||
| common2 "github.com/apache/dubbo-go-pixiu/pkg/adapter/dubboregistry/common" | ||
| "github.com/apache/dubbo-go-pixiu/pkg/adapter/dubboregistry/registry" | ||
| "github.com/apache/dubbo-go-pixiu/pkg/adapter/dubboregistry/remoting/zookeeper" | ||
| "github.com/apache/dubbo-go-pixiu/pkg/logger" | ||
| ) | ||
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| const ( | ||
| MaxFailTimes = 2 | ||
| ConnDelay = 3 * time.Second | ||
| ) | ||
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| var _ registry.Listener = new(nacosIntfListener) | ||
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| type nacosIntfListener struct { | ||
| exit chan struct{} | ||
| client naming_client.INamingClient | ||
| reg *NacosRegistry | ||
| wg sync.WaitGroup | ||
| dubbogoNacosRegistry dubboRegistry.Registry | ||
| addr string | ||
| adapterListener common2.RegistryEventListener | ||
| } | ||
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| // newNacosIntfListener returns a new nacosIntfListener with pre-defined path according to the registered type. | ||
| func newNacosIntfListener(client naming_client.INamingClient, addr string, reg *NacosRegistry, adapterListener common2.RegistryEventListener) registry.Listener { | ||
| return &nacosIntfListener{ | ||
| exit: make(chan struct{}), | ||
| client: client, | ||
| reg: reg, | ||
| addr: addr, | ||
| adapterListener: adapterListener, | ||
| } | ||
| } | ||
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| func (z *nacosIntfListener) Close() { | ||
| close(z.exit) | ||
| z.wg.Wait() | ||
| } | ||
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| func (z *nacosIntfListener) WatchAndHandle() { | ||
| var err error | ||
| z.dubbogoNacosRegistry, err = dubboConfig.NewRegistryConfigBuilder(). | ||
| SetProtocol("nacos"). | ||
| SetAddress(z.addr). | ||
| Build().GetInstance(common.CONSUMER) | ||
| if err != nil { | ||
| logger.Errorf("create nacos registry with address = %s error = %s", z.addr, err) | ||
| return | ||
| } | ||
| z.wg.Add(1) | ||
| go z.watch() | ||
| } | ||
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| func (z *nacosIntfListener) watch() { | ||
| defer z.wg.Done() | ||
| var ( | ||
| failTimes int64 = 0 | ||
| delayTimer = time.NewTimer(ConnDelay * time.Duration(failTimes)) | ||
| ) | ||
| defer delayTimer.Stop() | ||
| for { | ||
| serviceList, err := z.client.GetAllServicesInfo(vo.GetAllServiceInfoParam{ | ||
| PageSize: 100, | ||
| }) | ||
| // error handling | ||
| if err != nil { | ||
| failTimes++ | ||
| logger.Infof("watching nacos interface with error{%v}", err) | ||
| // Exit the watch if root node is in error | ||
| if err == zookeeper.ErrNilNode { | ||
| logger.Errorf("watching nacos services got errNilNode,so exit listen") | ||
| return | ||
| } | ||
| if failTimes > MaxFailTimes { | ||
| logger.Errorf("Error happens on nacos exceed max fail times: %s,so exit listen", MaxFailTimes) | ||
| return | ||
| } | ||
| delayTimer.Reset(ConnDelay * time.Duration(failTimes)) | ||
| <-delayTimer.C | ||
| continue | ||
| } | ||
| failTimes = 0 | ||
| if err := z.updateServiceList(serviceList.Doms); err != nil { | ||
| logger.Errorf("update service list failed %s", err) | ||
| } | ||
| time.Sleep(time.Second * 3) | ||
| } | ||
| } | ||
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| type serviceInfo struct { | ||
| interfaceName string | ||
| version string | ||
| group string | ||
| } | ||
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| func (s *serviceInfo) String() string { | ||
| return fmt.Sprintf("%s:%s:%s", s.interfaceName, s.version, s.group) | ||
| } | ||
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| func fromServiceFullKey(fullKey string) *serviceInfo { | ||
| serviceInfoStrs := strings.Split(fullKey, ":") | ||
| if len(serviceInfoStrs) != 4 { | ||
| return nil | ||
| } | ||
| return &serviceInfo{ | ||
| interfaceName: serviceInfoStrs[1], | ||
| version: serviceInfoStrs[2], | ||
| group: serviceInfoStrs[3], | ||
| } | ||
| } | ||
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| func (z *nacosIntfListener) updateServiceList(serviceList []string) error { | ||
| // todo lock all svc listener | ||
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| allSvcListener := z.reg.GetAllSvcListener() | ||
| subscribedServiceKeysMap := make(map[string]bool) | ||
| for k := range allSvcListener { | ||
| subscribedServiceKeysMap[k] = true | ||
| } | ||
| serviceNeedUpdate := make([]*serviceInfo, 0) | ||
| for _, v := range serviceList { | ||
| svcInfo := fromServiceFullKey(v) | ||
| if svcInfo == nil { | ||
| // invalid nacos dubbo service key | ||
| continue | ||
| } | ||
| key := svcInfo.String() | ||
| if _, ok := allSvcListener[key]; !ok { | ||
| serviceNeedUpdate = append(serviceNeedUpdate, svcInfo) | ||
| } else { | ||
| delete(subscribedServiceKeysMap, key) | ||
| } | ||
| } | ||
| if len(serviceNeedUpdate) == 0 && len(subscribedServiceKeysMap) == 0 { | ||
| // there is no needs to update | ||
| return nil | ||
| } | ||
| // subscribedServiceKeysMap is services needs to be removed | ||
| // serviceNeedUpdate is services needs to be subscribed | ||
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| for _, v := range serviceNeedUpdate { | ||
| url, _ := dubboCommon.NewURL("mock://localhost:8848") | ||
| url.SetParam(constant.InterfaceKey, v.interfaceName) | ||
| url.SetParam(constant.GroupKey, v.group) | ||
| url.SetParam(constant.VersionKey, v.version) | ||
| l := newNacosSrvListener(url, z.client, z.adapterListener) | ||
| l.wg.Add(1) | ||
| go func(v *serviceInfo) { | ||
| defer l.wg.Done() | ||
| z.reg.SetSvcListener(l.url.ServiceKey(), l) | ||
| if err := z.dubbogoNacosRegistry.Subscribe(url, l); err != nil { | ||
| logger.Errorf("subscribe listener with interfaceKey = %s, error = %s", l, err) | ||
| z.reg.RemoveSvcListener(l.url.ServiceKey()) | ||
| } | ||
| }(v) | ||
| } | ||
| // todo deal with subscribedServiceKeysMap services to be removed | ||
| for k := range subscribedServiceKeysMap { | ||
| z.reg.RemoveSvcListener(k) | ||
| } | ||
| return nil | ||
| } |
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