CsvIO.h

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// SPDX-License-Identifier: LGPL-3.0-or-later
/***********************************************************************************/
/*  Copyright 2018 WSL Institute for Snow and Avalanche Research    SLF-DAVOS      */
/***********************************************************************************/
/* This file is part of MeteoIO.
    MeteoIO is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    MeteoIO 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 Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
    along with MeteoIO.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CSVIO_H
#define CSVIO_H
 
#include <meteoio/IOInterface.h>
#include <meteoio/FStream.h>
#include <meteoio/FileUtils.h>
#include <meteoio/dataClasses/Coords.h>
#include <meteoio/plugins/CsvParams.h>
 
#include <string>
#include <vector>
 
namespace mio {
class CsvIO : public IOInterface {
        public:
                CsvIO(const std::string& configfile);
                CsvIO(const CsvIO&);
                CsvIO(const Config& cfgreader);
 
                virtual void readStationData(const Date& date, std::vector<StationData>& vecStation) override;
                
                virtual void readMeteoData(const Date& dateStart, const Date& dateEnd,
                                           std::vector< std::vector<MeteoData> >& vecMeteo) override;
 
        private:
                void parseInputOutputSection();
                void cleanup() noexcept;
                std::string setDateParsing(const std::string& datetime_spec);
                std::vector<std::string> readHeaders(ifilestream& fin, CsvParameters& params) const;
                static MeteoData createTemplate(const CsvParameters& params);
                static Date getDate(CsvParameters& params, const std::vector<std::string>& vecFields, const bool& silent_errors, const std::string& filename, const size_t& linenr);
                std::vector<MeteoData> readCSVFile(CsvParameters& params, const Date& dateStart, const Date& dateEnd);
                
                const Config cfg;
                std::map<std::string, FileUtils::FileIndexer> indexer_map;
                std::vector<CsvParameters> csvparam;
                std::vector<StationData> vecStations;
                std::string coordin, coordinparam; //projection parameters
                static const size_t streampos_every_n_lines; //save current stream pos every n lines of data
                bool silent_errors; 
                bool errors_to_nodata;    //unparseable values are treated as nodata, but the dataset is kept
};
 
} //namespace
#endif