| /* |
| * 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 sd |
| |
| import ( |
| "sync" |
| |
| "github.com/go-chassis/cari/discovery" |
| "go.mongodb.org/mongo-driver/bson" |
| "go.mongodb.org/mongo-driver/bson/primitive" |
| |
| "github.com/apache/servicecomb-service-center/datasource/sdcommon" |
| ) |
| |
| const ( |
| service = "service" |
| instance = "instance" |
| dep = "dependency" |
| ) |
| |
| type cacherRegisterInitiallizer func() (cacher *MongoCacher) |
| |
| var cacherRegisterMutex sync.Mutex |
| var CacherRegister = make(map[string]cacherRegisterInitiallizer) |
| |
| func RegisterCacher(t string, f cacherRegisterInitiallizer) { |
| cacherRegisterMutex.Lock() |
| defer cacherRegisterMutex.Unlock() |
| if _, exist := CacherRegister[t]; exist { |
| return |
| } |
| CacherRegister[t] = f |
| } |
| |
| type MongoEvent struct { |
| DocumentID string |
| Value interface{} |
| Type discovery.EventType |
| } |
| |
| type MongoEventFunc func(evt MongoEvent) |
| |
| type MongoEventHandler interface { |
| Type() string |
| OnEvent(evt MongoEvent) |
| } |
| |
| func NewMongoEventByResource(resource *sdcommon.Resource, action discovery.EventType) MongoEvent { |
| return MongoEvent{ |
| Type: action, |
| Value: resource.Value, |
| DocumentID: resource.Key, |
| } |
| } |
| |
| func NewMongoEvent(documentID string, action discovery.EventType, v interface{}) MongoEvent { |
| event := MongoEvent{} |
| event.DocumentID = documentID |
| event.Type = action |
| event.Value = v |
| return event |
| } |
| |
| type MongoWatchResponse struct { |
| OperationType string |
| FullDocument bson.Raw |
| DocumentKey MongoDocument |
| } |
| |
| type MongoDocument struct { |
| ID primitive.ObjectID `bson:"_id"` |
| } |
| |
| type ResumeToken struct { |
| Data []byte `bson:"_data"` |
| } |