| /* |
| * 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 dao |
| |
| import ( |
| "context" |
| |
| "github.com/go-chassis/cari/discovery" |
| "github.com/go-chassis/cari/pkg/errsvc" |
| "go.mongodb.org/mongo-driver/bson" |
| "go.mongodb.org/mongo-driver/mongo/options" |
| |
| "github.com/apache/servicecomb-service-center/datasource/mongo/client" |
| "github.com/apache/servicecomb-service-center/datasource/mongo/client/model" |
| mutil "github.com/apache/servicecomb-service-center/datasource/mongo/util" |
| ) |
| |
| func GetInstance(ctx context.Context, filter interface{}) (*model.Instance, error) { |
| findRes, err := client.GetMongoClient().FindOne(ctx, model.CollectionInstance, filter) |
| if err != nil { |
| return nil, err |
| } |
| var instance *model.Instance |
| if findRes.Err() != nil { |
| //not get any service,not db err |
| return nil, nil |
| } |
| err = findRes.Decode(&instance) |
| if err != nil { |
| return nil, err |
| } |
| return instance, nil |
| } |
| |
| func GetInstances(ctx context.Context, filter interface{}) ([]*model.Instance, error) { |
| res, err := client.GetMongoClient().Find(ctx, model.CollectionInstance, filter) |
| if err != nil { |
| return nil, err |
| } |
| var instances []*model.Instance |
| for res.Next(ctx) { |
| var tmp *model.Instance |
| err := res.Decode(&tmp) |
| if err != nil { |
| return nil, err |
| } |
| instances = append(instances, tmp) |
| } |
| return instances, nil |
| } |
| |
| func GetMicroServiceInstancesByID(ctx context.Context, serviceID string) ([]*discovery.MicroServiceInstance, error) { |
| filter := mutil.NewFilter(mutil.InstanceServiceID(serviceID)) |
| option := &options.FindOptions{Sort: bson.M{mutil.ConnectWithDot([]string{model.ColumnInstance, model.ColumnVersion}): -1}} |
| return GetMicroServiceInstances(ctx, filter, option) |
| } |
| |
| func GetMicroServiceInstances(ctx context.Context, filter interface{}, opts ...*options.FindOptions) ([]*discovery.MicroServiceInstance, error) { |
| res, err := client.GetMongoClient().Find(ctx, model.CollectionInstance, filter, opts...) |
| if err != nil { |
| return nil, err |
| } |
| var instances []*discovery.MicroServiceInstance |
| for res.Next(ctx) { |
| var tmp model.Instance |
| err := res.Decode(&tmp) |
| if err != nil { |
| return nil, err |
| } |
| instances = append(instances, tmp.Instance) |
| } |
| return instances, nil |
| } |
| |
| func CountInstance(ctx context.Context, filter interface{}) (int64, error) { |
| count, err := client.GetMongoClient().Count(ctx, model.CollectionInstance, filter) |
| if err != nil { |
| return 0, err |
| } |
| return count, nil |
| } |
| |
| func UpdateInstance(ctx context.Context, filter interface{}, update interface{}, opts ...*options.UpdateOptions) *errsvc.Error { |
| _, err := client.GetMongoClient().Update(ctx, model.CollectionInstance, filter, update, opts...) |
| if err != nil { |
| return discovery.NewError(discovery.ErrUnavailableBackend, err.Error()) |
| } |
| return nil |
| } |
| |
| func ExistInstance(ctx context.Context, serviceID string, instanceID string) (bool, error) { |
| filter := mutil.NewBasicFilter(ctx, mutil.InstanceServiceID(serviceID), mutil.InstanceInstanceID(instanceID)) |
| return client.GetMongoClient().DocExist(ctx, model.CollectionInstance, filter) |
| } |