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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| /* | ||
| * Licensed to the LF AI & Data foundation 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. | ||
| * custom by qanda | ||
| */ | ||
|
|
||
| package util | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "net" | ||
| "reflect" | ||
| "sync" | ||
| "time" | ||
|
|
||
| "github.com/cockroachdb/errors" | ||
| "go.uber.org/zap" | ||
|
|
||
| "github.com/milvus-io/milvus/pkg/util/resource" | ||
|
|
||
| "github.com/zilliztech/milvus-cdc/core/log" | ||
| ) | ||
|
|
||
| const ( | ||
| DBClientResourceTyp = "db_client" | ||
| DBClientExpireTime = 30 * time.Second | ||
| ) | ||
|
|
||
| var ( | ||
| dbClientManager *DBClientResourceManager | ||
| dbClientManagerOnce sync.Once | ||
| ) | ||
|
|
||
| type DBClientResourceManager struct { | ||
| manager resource.Manager | ||
| } | ||
|
|
||
| func GetDBClientManager() *DBClientResourceManager { | ||
| dbClientManagerOnce.Do(func() { | ||
| manager := resource.NewManager(0, 0, nil) | ||
| dbClientManager = &DBClientResourceManager{ | ||
| manager: manager, | ||
| } | ||
| }) | ||
| return dbClientManager | ||
| } | ||
|
|
||
| func (m *DBClientResourceManager) newDBClient(cdcAgentHost, cdcAgentPort, address, database, collection string, dialConfig DialConfig) resource.NewResourceFunc { | ||
| return func() (resource.Resource, error) { | ||
| conn, err := net.Dial("tcp", cdcAgentHost+":"+cdcAgentPort) | ||
| if err != nil { | ||
| log.Warn("Error connecting:", zap.Error(err)) | ||
| return nil, err | ||
| } | ||
| /* | ||
| c, err := client.NewClient(ctx, client.Config{ | ||
| Address: address, | ||
| APIKey: apiKey, | ||
| EnableTLSAuth: enableTLS, | ||
| DBName: database, | ||
| }) | ||
| if err != nil { | ||
| log.Warn("fail to new the db client", zap.String("database", database), zap.String("address", address), zap.Error(err)) | ||
| return nil, err | ||
| } | ||
| */ | ||
| res := resource.NewSimpleResource(conn, DBClientResourceTyp, fmt.Sprintf("%s:%s:%s", address, database, collection), DBClientExpireTime, func() { | ||
| _ = conn.Close() | ||
| }) | ||
|
|
||
| return res, nil | ||
| } | ||
| } | ||
|
|
||
| func (m *DBClientResourceManager) GetDBClient(ctx context.Context, cdcAgentHost, cdcAgentPort, address, database, collection string, dialConfig DialConfig, connectionTimeout int) (net.Conn, error) { | ||
| if database == "" { | ||
| database = DefaultDbName | ||
| } | ||
| ctxLog := log.Ctx(ctx).With(zap.String("database", database), zap.String("address", address)) | ||
| res, err := m.manager.Get(DBClientResourceTyp, | ||
| getDBClientResourceName(address, database, collection), | ||
| m.newDBClient(cdcAgentHost, cdcAgentPort, address, database, collection, dialConfig)) | ||
| if err != nil { | ||
| ctxLog.Error("fail to get db client", zap.Error(err)) | ||
| return nil, err | ||
| } | ||
| if obj, ok := res.Get().(net.Conn); ok && obj != nil { | ||
| return obj, nil | ||
| } | ||
| ctxLog.Warn("invalid resource object", zap.Any("obj", reflect.TypeOf(res.Get()))) | ||
| return nil, errors.New("invalid resource object") | ||
| } | ||
|
|
||
| func (m *DBClientResourceManager) DeleteDBClient(address, database, collection string) { | ||
| _ = m.manager.Delete(DBClientResourceTyp, getDBClientResourceName(address, database, collection)) | ||
| } | ||
|
|
||
| func getDBClientResourceName(address, database, collection string) string { | ||
| return fmt.Sprintf("%s:%s:%s", address, database, collection) | ||
| } |
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