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48 lines
1.9 KiB
48 lines
1.9 KiB
///
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/// Copyright 2015-2022 Oliver Giles
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///
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/// This file is part of Laminar
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///
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/// Laminar is free software: you can redistribute it and/or modify
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/// it under the terms of the GNU General Public License as published by
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/// the Free Software Foundation, either version 3 of the License, or
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/// (at your option) any later version.
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///
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/// Laminar is distributed in the hope that it will be useful,
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/// but WITHOUT ANY WARRANTY; without even the implied warranty of
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/// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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/// GNU General Public License for more details.
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///
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/// You should have received a copy of the GNU General Public License
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/// along with Laminar. If not, see <http://www.gnu.org/licenses/>
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///
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#ifndef LAMINAR_JSON_H_
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#define LAMINAR_JSON_H_
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#include <rapidjson/stringbuffer.h>
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#include <rapidjson/writer.h>
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#include <string>
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// rapidjson::Writer with a StringBuffer is used a lot in Laminar for
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// preparing JSON messages to send to HTTP clients. A small wrapper
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// class here reduces verbosity later for this common use case.
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class Json : public rapidjson::Writer<rapidjson::StringBuffer> {
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public:
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Json() : rapidjson::Writer<rapidjson::StringBuffer>(buf) { StartObject(); }
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template<typename T>
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Json& set(const char* key, T value) { String(key); Int64(value); return *this; }
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Json& startObject(const char* key) { String(key); StartObject(); return *this; }
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Json& startArray(const char* key) { String(key); StartArray(); return *this; }
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Json& setJsonObject(const char* key, const std::string& object);
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const char* str() { EndObject(); return buf.GetString(); }
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private:
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rapidjson::StringBuffer buf;
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};
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template<> Json& Json::set(const char* key, double value);
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template<> Json& Json::set(const char* key, const char* value);
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template<> Json& Json::set(const char* key, std::string value);
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#endif // ? ! LAMINAR_LAMINAR_H_
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