| /* |
| * 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 etcd |
| |
| import ( |
| "context" |
| "encoding/json" |
| "errors" |
| "fmt" |
| |
| pb "github.com/go-chassis/cari/discovery" |
| "github.com/little-cui/etcdadpt" |
| |
| "github.com/apache/servicecomb-service-center/datasource" |
| "github.com/apache/servicecomb-service-center/datasource/etcd/event" |
| "github.com/apache/servicecomb-service-center/datasource/etcd/path" |
| "github.com/apache/servicecomb-service-center/datasource/etcd/sd" |
| esync "github.com/apache/servicecomb-service-center/datasource/etcd/sync" |
| eutil "github.com/apache/servicecomb-service-center/datasource/etcd/util" |
| "github.com/apache/servicecomb-service-center/pkg/log" |
| "github.com/apache/servicecomb-service-center/pkg/util" |
| ) |
| |
| type DepManager struct { |
| } |
| |
| func (dm *DepManager) ListConsumers(ctx context.Context, request *pb.GetDependenciesRequest) (*pb.GetProDependenciesResponse, error) { |
| domainProject := util.ParseDomainProject(ctx) |
| providerServiceID := request.ServiceId |
| provider, err := eutil.GetService(ctx, domainProject, providerServiceID) |
| |
| if err != nil { |
| if errors.Is(err, datasource.ErrNoData) { |
| log.Debug(fmt.Sprintf("provider[%s] does not exist in db", providerServiceID)) |
| return nil, pb.NewError(pb.ErrServiceNotExists, "Provider does not exist") |
| } |
| log.Error(fmt.Sprintf("query provider service from db failed, provider is %s", providerServiceID), err) |
| return nil, err |
| } |
| |
| services, err := eutil.GetConsumers(ctx, domainProject, provider, toDependencyFilterOptions(request)...) |
| if err != nil { |
| log.Error(fmt.Sprintf("query provider failed, provider is %s/%s/%s/%s", |
| provider.Environment, provider.AppId, provider.ServiceName, provider.Version), err) |
| return nil, pb.NewError(pb.ErrInternal, err.Error()) |
| } |
| |
| return &pb.GetProDependenciesResponse{ |
| Consumers: services, |
| }, nil |
| } |
| |
| func (dm *DepManager) ListProviders(ctx context.Context, request *pb.GetDependenciesRequest) (*pb.GetConDependenciesResponse, error) { |
| consumerID := request.ServiceId |
| domainProject := util.ParseDomainProject(ctx) |
| consumer, err := eutil.GetService(ctx, domainProject, consumerID) |
| |
| if err != nil { |
| if errors.Is(err, datasource.ErrNoData) { |
| log.Debug(fmt.Sprintf("consumer[%s] does not exist", consumerID)) |
| return nil, pb.NewError(pb.ErrServiceNotExists, "Consumer does not exist") |
| } |
| log.Error(fmt.Sprintf("query consumer failed, consumer is %s", consumerID), err) |
| return nil, err |
| } |
| |
| services, err := eutil.GetProviders(ctx, domainProject, consumer, toDependencyFilterOptions(request)...) |
| if err != nil { |
| log.Error(fmt.Sprintf("query consumer failed, consumer is %s/%s/%s/%s", |
| consumer.Environment, consumer.AppId, consumer.ServiceName, consumer.Version), err) |
| return nil, pb.NewError(pb.ErrInternal, err.Error()) |
| } |
| |
| return &pb.GetConDependenciesResponse{ |
| Providers: services, |
| }, nil |
| } |
| |
| func (dm *DepManager) DependencyHandle(ctx context.Context) error { |
| var dep *event.DependencyEventHandler |
| err := dep.Handle() |
| if err != nil { |
| return err |
| } |
| |
| key := path.GetServiceDependencyQueueRootKey("") |
| resp, err := sd.DependencyQueue().Search(ctx, |
| etcdadpt.WithStrKey(key), etcdadpt.WithPrefix(), etcdadpt.WithCountOnly()) |
| if err != nil { |
| return err |
| } |
| // maintain dependency rules. |
| if resp.Count != 0 { |
| return fmt.Errorf("residual records[%d]", resp.Count) |
| } |
| return nil |
| } |
| |
| func (dm *DepManager) PutDependencies(ctx context.Context, dependencyInfos []*pb.ConsumerDependency, override bool) error { |
| opts := make([]etcdadpt.OpOptions, 0, len(dependencyInfos)) |
| domainProject := util.ParseDomainProject(ctx) |
| for _, dependencyInfo := range dependencyInfos { |
| consumerFlag := util.StringJoin([]string{dependencyInfo.Consumer.Environment, dependencyInfo.Consumer.AppId, dependencyInfo.Consumer.ServiceName, dependencyInfo.Consumer.Version}, "/") |
| consumerInfo := pb.DependenciesToKeys([]*pb.MicroServiceKey{dependencyInfo.Consumer}, domainProject)[0] |
| providersInfo := pb.DependenciesToKeys(dependencyInfo.Providers, domainProject) |
| |
| if err := datasource.ParamsChecker(consumerInfo, providersInfo); err != nil { |
| log.Error(fmt.Sprintf("put request into dependency queue failed, override: %t, consumer is %s", |
| override, consumerFlag), err) |
| return err |
| } |
| |
| consumerID, err := eutil.GetServiceID(ctx, consumerInfo) |
| if err != nil { |
| log.Error(fmt.Sprintf("put request into dependency queue failed, override: %t, get consumer[%s] id failed", |
| override, consumerFlag), err) |
| return pb.NewError(pb.ErrInternal, err.Error()) |
| } |
| if len(consumerID) == 0 { |
| log.Error(fmt.Sprintf("put request into dependency queue failed, override: %t, consumer[%s] does not exist", |
| override, consumerFlag), nil) |
| return pb.NewError(pb.ErrServiceNotExists, fmt.Sprintf("Consumer %s does not exist.", consumerFlag)) |
| } |
| |
| dependencyInfo.Override = override |
| data, err := json.Marshal(dependencyInfo) |
| if err != nil { |
| log.Error(fmt.Sprintf("put request into dependency queue failed, override: %t, marshal consumer[%s] dependency failed", |
| override, consumerFlag), err) |
| return pb.NewError(pb.ErrInternal, err.Error()) |
| } |
| |
| id := path.DepsQueueUUID |
| if !override { |
| id = util.GenerateUUID() |
| } |
| key := path.GenerateConsumerDependencyQueueKey(domainProject, consumerID, id) |
| opts = append(opts, etcdadpt.OpPut(etcdadpt.WithStrKey(key), etcdadpt.WithValue(data))) |
| syncOpts, err := esync.GenUpdateOpts(ctx, datasource.ResourceKV, data, esync.WithOpts(map[string]string{"key": key})) |
| if err != nil { |
| log.Error("fail to create sync opts", err) |
| return pb.NewError(pb.ErrInternal, err.Error()) |
| } |
| opts = append(opts, syncOpts...) |
| } |
| |
| err := etcdadpt.Txn(ctx, opts) |
| if err != nil { |
| log.Error(fmt.Sprintf("put request into dependency queue failed, override: %t, %v", |
| override, dependencyInfos), err) |
| return pb.NewError(pb.ErrInternal, err.Error()) |
| } |
| |
| log.Info(fmt.Sprintf("put request into dependency queue successfully, override: %t, %v, from remote %s", |
| override, dependencyInfos, util.GetIPFromContext(ctx))) |
| return nil |
| } |