1 // Licensed to the Apache Software Foundation (ASF) under one 2 // or more contributor license agreements. See the NOTICE file 3 // distributed with this work for additional information 4 // regarding copyright ownership. The ASF licenses this file 5 // to you under the Apache License, Version 2.0 (the 6 // "License"); you may not use this file except in compliance 7 // with the License. You may obtain a copy of the License at 8 // 9 // http://www.apache.org/licenses/LICENSE-2.0 10 // 11 // Unless required by applicable law or agreed to in writing, 12 // software distributed under the License is distributed on an 13 // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 14 // KIND, either express or implied. See the License for the 15 // specific language governing permissions and limitations 16 // under the License. 17 18 #pragma once 19 20 #include <memory> 21 22 #include "arrow/util/string_view.h" 23 #include "arrow/util/visibility.h" 24 25 namespace arrow { 26 namespace json { 27 namespace internal { 28 29 /// This class is a helper to serialize a json object to a string. 30 /// It uses rapidjson in implementation. 31 class ARROW_EXPORT ObjectWriter { 32 public: 33 ObjectWriter(); 34 ~ObjectWriter(); 35 36 void SetString(arrow::util::string_view key, arrow::util::string_view value); 37 void SetBool(arrow::util::string_view key, bool value); 38 39 std::string Serialize(); 40 41 private: 42 class Impl; 43 std::unique_ptr<Impl> impl_; 44 }; 45 46 } // namespace internal 47 } // namespace json 48 } // namespace arrow 49