text: // 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.
  
  #pragma once
  
  #include "MilvusApi.h"
  #include "sdk/grpc/ClientProxy.h"
  
  #include <memory>
  #include <string>
  #include <vector>
  
  namespace milvus {
  
  class ConnectionImpl : public Connection {
   public:
      ConnectionImpl();
  
      // Implementations of the Connection interface
      Status
      Connect(const ConnectParam& param) override;
  
      Status
      Connect(const std::string& uri) override;
  
      Status
      Connected() const override;
  
      Status
      Disconnect() override;
  
      Status
      CreateTable(const TableSchema& param) override;
  
      bool
      HasTable(const std::string& table_name) override;
  
      Status
      DropTable(const std::string& table_name) override;
  
      Status
      CreateIndex(const IndexParam& index_param) override;
  
      Status
      Insert(const std::string& table_name, const std::vector<RowRecord>& record_array,
             std::vector<int64_t>& id_array) override;
  
      Status
      Search(const std::string& table_name, const std::vector<RowRecord>& query_record_array,
             const std::vector<Range>& query_range_array, int64_t topk, int64_t nprobe,
             TopKQueryResult& topk_query_result) override;
  
      Status
      DescribeTable(const std::string& table_name, TableSchema& table_schema) override;
  
      Status
      CountTable(const std::string& table_name, int64_t& row_count) override;
  
      Status
      ShowTables(std::vector<std::string>& table_array) override;
  
      std::string
      ClientVersion() const override;
  
      std::string
      ServerVersion() const override;
  
      std::string
      ServerStatus() const override;
  
      std::string
      DumpTaskTables() const override;
  
      Status
      DeleteByRange(Range& range, const std::string& table_name) override;
  
      Status
      PreloadTable(const std::string& table_name) const override;
  
      Status
      DescribeIndex(const std::string& table_name, IndexParam& index_param) const override;
  
      Status
      DropIndex(const std::string& table_name) const override;
  
   private:
      std::shared_ptr<ClientProxy> client_proxy_;
  };
  
  }  // namespace milvus
  