/** JSON serializtion sample data. * * @author Steffen Vogel * @copyright 2014-2020, Institute for Automation of Complex Power Systems, EONERC * @license GNU General Public License (version 3) * * VILLASnode * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . *********************************************************************************/ #pragma once #include #include /* Forward declarations */ struct sample; namespace villas { namespace node { class JsonFormat : public Format { protected: static enum SignalType detect(const json_t *val); json_t * packTimestamps(const struct sample *smp); int unpackTimestamps(json_t *json_ts, struct sample *smp); virtual int packSample(json_t **j, const struct sample *smp); virtual int packSamples(json_t **j, const struct sample * const smps[], unsigned cnt); virtual int unpackSample(json_t *json_smp, struct sample *smp); virtual int unpackSamples(json_t *json_smps, struct sample * const smps[], unsigned cnt); int dump_flags; public: JsonFormat(int fl) : Format(fl), dump_flags(0) { } int sscan(const char *buf, size_t len, size_t *rbytes, struct sample * const smps[], unsigned cnt); int sprint(char *buf, size_t len, size_t *wbytes, const struct sample * const smps[], unsigned cnt); int print(FILE *f, const struct sample * const smps[], unsigned cnt); int scan(FILE *f, struct sample * const smps[], unsigned cnt); virtual void parse(json_t *json); }; } /* namespace node */ } /* namespace villas */