yanhongwangg commented on a change in pull request #2046: URL: https://github.com/apache/iotdb/pull/2046#discussion_r530095804
########## File path: client-go/src/main/client/session.go ########## @@ -0,0 +1,667 @@ +/** + * 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 client + +import ( + "bytes" + "context" + "encoding/binary" + "fmt" + "github.com/apache/thrift/lib/go/thrift" + log "github.com/sirupsen/logrus" + "github.com/yanhongwangg/go-thrift/rpc" + "github.com/yanhongwangg/incubator-iotdb/client-go/src/main/client/utils" + "net" + "os" + "strings" + "time" +) + +const protocolVersion = rpc.TSProtocolVersion_IOTDB_SERVICE_PROTOCOL_V3 + +func (s *Session) Open(enableRPCCompression bool, connectionTimeoutInMs int) { + dir, _ := os.Getwd() + os.Mkdir(dir+"\\logs", os.ModePerm) + logFile, _ := os.OpenFile(dir+"\\logs\\all.log", os.O_CREATE|os.O_RDWR|os.O_APPEND, 0666) + log.SetOutput(logFile) + log.SetLevel(log.InfoLevel) + var protocolFactory thrift.TProtocolFactory + s.trans, s.err = thrift.NewTSocketTimeout(net.JoinHostPort(s.Host, s.Port), time.Duration(connectionTimeoutInMs)) + if s.err != nil { + log.WithError(s.err).Error("connect failed") + } + s.trans = thrift.NewTFramedTransport(s.trans) + if !s.trans.IsOpen() { + s.err = s.trans.Open() + if s.err != nil { + log.WithError(s.err).Error("open the conn failed") + } + } + if enableRPCCompression { + protocolFactory = thrift.NewTCompactProtocolFactory() + } else { + protocolFactory = thrift.NewTBinaryProtocolFactoryDefault() + } + iProtocol := protocolFactory.GetProtocol(s.trans) + oProtocol := protocolFactory.GetProtocol(s.trans) + s.client = rpc.NewTSIServiceClient(thrift.NewTStandardClient(iProtocol, oProtocol)) + s.ZoneId = DefaultZoneId + tSOpenSessionReq := rpc.TSOpenSessionReq{ClientProtocol: protocolVersion, ZoneId: s.ZoneId, Username: &s.User, + Password: &s.Passwd} + tSOpenSessionResp, err := s.client.OpenSession(context.Background(), &tSOpenSessionReq) + if err != nil { + log.WithError(err).Error("open session failed") + } else { + log.WithField("code", tSOpenSessionResp.GetStatus().Code).Debug("open session success") + } + s.sessionId = tSOpenSessionResp.GetSessionId() + s.requestStatementId, err = s.client.RequestStatementId(context.Background(), s.sessionId) + s.FetchSize = DefaultFetchSize + if err != nil { + log.WithError(err).Error("request StatementId failed") + } + if s.ZoneId != "" { + s.SetTimeZone(s.ZoneId) + } else { + s.ZoneId = s.GetTimeZone() + } +} + +func (s *Session) CheckTimeseriesExists(path string) bool { + dataSet := s.ExecuteQueryStatement("SHOW TIMESERIES " + path) + result := dataSet.HasNext() + dataSet.CloseOperationHandle() + return result +} + +func (s *Session) Close() { + tSCloseSessionReq := rpc.NewTSCloseSessionReq() + tSCloseSessionReq.SessionId = s.sessionId + status, err := s.client.CloseSession(context.Background(), tSCloseSessionReq) + if err != nil { + log.WithError(err).Error("Error occurs when closing session at server. Maybe server is down.") + } else { + log.WithField("code", status.Code).Debug("close session success") + } + s.trans.Close() +} + +/* + *set one storage group + * + *param + *storageGroupId: string, storage group name (starts from root) + * + */ +func (s *Session) SetStorageGroup(storageGroupId string) { + status, err := s.client.SetStorageGroup(context.Background(), s.sessionId, storageGroupId) + if err != nil { + log.WithError(err).Error("setting storage group failed") + } else { + log.WithFields(log.Fields{ + "sg": storageGroupId, + "code": status.Code, + }).Debug("setting storage group success") + } +} + +/* + *delete one storage group + * + *param + *storageGroupId: string, storage group name (starts from root) + * + */ +func (s *Session) DeleteStorageGroup(storageGroupId string) { + status, err := s.client.DeleteStorageGroups(context.Background(), s.sessionId, []string{storageGroupId}) + if err != nil { + log.WithError(err).Error("delete storage group failed") + } else { + log.WithFields(log.Fields{ + "sg": storageGroupId, + "code": status.Code, + }).Debug("delete storage group success") + } +} + +/* + *delete multiple storage group + * + *param + *storageGroupIds: []string, paths of the target storage groups + * + */ +func (s *Session) DeleteStorageGroups(storageGroupIds []string) { + status, err := s.client.DeleteStorageGroups(context.Background(), s.sessionId, storageGroupIds) + s.sg = strings.Replace(strings.Trim(fmt.Sprint(storageGroupIds), "[]"), " ", ",", -1) Review comment: thanks for your guidance ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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