worker24h commented on a change in pull request #3230: Support load json-data into Doris by RoutineLoad or StreamLoad URL: https://github.com/apache/incubator-doris/pull/3230#discussion_r410010003
########## File path: be/src/exec/json_scanner.h ########## @@ -0,0 +1,140 @@ +// 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. + +#ifndef BE_SRC_JSON_SCANNER_H_ +#define BE_SRC_JSON_SCANNER_H_ + +#include <memory> +#include <vector> +#include <string> +#include <map> +#include <sstream> +#include <rapidjson/document.h> + +#include "exec/base_scanner.h" +#include "common/status.h" +#include "gen_cpp/PlanNodes_types.h" +#include "gen_cpp/Types_types.h" +#include "util/slice.h" +#include "util/runtime_profile.h" +#include "runtime/mem_pool.h" +#include "runtime/tuple.h" +#include "runtime/descriptors.h" +#include "runtime/stream_load/load_stream_mgr.h" +#include "runtime/small_file_mgr.h" + +namespace doris { +class Tuple; +class SlotDescriptor; +class RuntimeState; +class TupleDescriptor; +class MemTracker; +class JsonReader; + +class JsonScanner : public BaseScanner { +public: + JsonScanner( + RuntimeState* state, + RuntimeProfile* profile, + const TBrokerScanRangeParams& params, + const std::vector<TBrokerRangeDesc>& ranges, + const std::vector<TNetworkAddress>& broker_addresses, + ScannerCounter* counter); + ~JsonScanner(); + + // Open this scanner, will initialize information need to + Status open() override; + + // Get next tuple + Status get_next(Tuple* tuple, MemPool* tuple_pool, bool* eof) override; + + // Close this scanner + void close() override; +private: + Status open_next_reader(); +private: + //const TBrokerScanRangeParams& _params; + const std::vector<TBrokerRangeDesc>& _ranges; + const std::vector<TNetworkAddress>& _broker_addresses; + + std::string _jsonpath; + std::string _jsonpath_file; + // std::shared_ptr<rapidjson::Document> _jsonPathDoc; + + // used to hold current StreamLoadPipe + std::shared_ptr<StreamLoadPipe> _stream_load_pipe; + // Reader + JsonReader* _cur_file_reader; + int _next_range; + bool _cur_file_eof; // is read over? + bool _scanner_eof; +}; + + +class JsonDataInternal { +public: + JsonDataInternal(rapidjson::Value* v); + ~JsonDataInternal(); + rapidjson::Value::ConstValueIterator getNext(); + +private: + bool isEnd(); + +private: + rapidjson::Value* _jsonValues; Review comment: ok ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org
